rest of animation coding

animation , animator , keyframe & quaterions
compiling but not debuged at all

.gitignore

@@ -13,9 +13,6 @@
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs
 
-# Mono auto generated files
-mono_crash.*
-
 # Build results
 [Dd]ebug/
 [Dd]ebugPublic/

OpenWindow/COLLADA.cpp

@@ -1,9 +0,0 @@
-#include "COLLADA.h"
-
-COLLADA::COLLADA(const char* filename)
-{
-	tinyxml2::XMLDocument doc;
-	doc.LoadFile(filename);
-	tinyxml2::XMLElement* xml = doc.FirstChildElement("COLLADA");
-	m_GeometryLibrary = GeometryLibrary(xml->FirstChildElement("library_geometries"));
-}

OpenWindow/COLLADA.h

@@ -1,18 +0,0 @@
-#pragma once
-#include "GeometryLibrary.h"
-class COLLADA
-{
-private:
-	GeometryLibrary     m_GeometryLibrary;
-	//ImagesLibrary       m_ImagesLibrary;
-	//EffectsLibrary      m_EffectsLibrary;
-	//MaterialLibrary     m_MaterialLibrary;
-	//ControllerLibrary   m_ControllerLibrary;
-	//AnimationLibrary    m_AnimationLibrary;
-	VisualSceneLibrary  m_VisualSceneLibrary;
-
-public:
-	COLLADA() = default;
-	COLLADA(const char* filename);
-};
-

OpenWindow/ColladaModel.cpp

@@ -6,7 +6,7 @@
 #define PI 3.14159265358979323846
 #define DEG2RAD PI/180
 
-ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normals_()
+ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normals_(), rootjoint()
 {
 	Transform = Matrix::identity();
 	Rotation = Matrix::identity();
@@ -15,11 +15,14 @@ ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normal
 
 	tinyxml2::XMLDocument doc;
 	doc.LoadFile(filename);
+
+	load_texture(filename, "_diffuse.tga", diffusemap_);
+	load_texture(filename, "_nm_tangent.tga", normalmap_);
 	///////////////////////////////////////////////////////////////////////////////////////////////////////
 	////////////////////////////////////////////////faces//////////////////////////////////////////////////
 	///////////////////////////////////////////////////////////////////////////////////////////////////////
 	face_count = 0;
-	tinyxml2::XMLElement* xml_face = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("triangles");
+	tinyxml2::XMLElement* xml_face = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement()->FirstChildElement()->FirstChildElement("triangles");
 	xml_face->QueryIntAttribute("count", &face_count); //get count
 	std::stringstream str_triangle(xml_face->FirstChildElement("p")->GetText()); //get values as a string
 
@@ -54,7 +57,7 @@ ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normal
 	///////////////////////////////////////////////////////////////////////////////////////////////////////
 	/////////////////////////////////////////////normal////////////////////////////////////////////////////
 	///////////////////////////////////////////////////////////////////////////////////////////////////////
-	normal_count = 0;
+	int normal_count = 0;
 	tinyxml2::XMLElement* xml_normal = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("source")->NextSiblingElement()->FirstChildElement("float_array");
 	xml_normal->QueryIntAttribute("count", &normal_count);
 	std::stringstream str_normal(xml_normal->GetText());
@@ -68,9 +71,9 @@ ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normal
 		normals_.push_back(temp);
 	}
 	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	/////////////////////////////////////////////textcoord/////////////////////////////////////////////////
 	///////////////////////////////////////////////////////////////////////////////////////////////////////
-	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	int texcoord_count = 0;
-	texcoord_count = 0;
 	tinyxml2::XMLElement* xml_texture = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("source")->NextSiblingElement()->NextSiblingElement()->FirstChildElement("float_array");
 	xml_texture->QueryIntAttribute("count", &texcoord_count);
 	std::stringstream str_texcoord(xml_texture->GetText());
@@ -80,20 +83,105 @@ ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normal
 		Vec2f temp;
 		str_texcoord >> temp.x;
 		str_texcoord >> temp.y;
-		textureco_.push_back(temp);
+		texturecos_.push_back(temp);
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	int vertexweights_count = 0;
+	tinyxml2::XMLElement* xml_vertexweights = doc.FirstChildElement("COLLADA")->FirstChildElement("library_controllers")->FirstChildElement()->FirstChildElement()->FirstChildElement("vertex_weights");
+	xml_vertexweights->QueryIntAttribute("count", &vertexweights_count);
+	std::stringstream str_vertexweights(xml_vertexweights->FirstChildElement("vcount")->GetText());
+	std::stringstream str_vertexweights1(xml_vertexweights->FirstChildElement("v")->GetText());
+
+	for (int i = 0; i < vertexweights_count; i++)
+	{
+		int temp;
+		Vec2i temp1;
+		vertexweights_.push_back(std::vector<Vec2i>());
+		str_vertexweights >> temp;
+		
+		for (int j = 0; j < temp; j++)
+		{
+			str_vertexweights1 >> temp1.x;
+			str_vertexweights1 >> temp1.y;
+			vertexweights_[i].push_back(temp1);
+		}
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	int weight_count = 0;
+	tinyxml2::XMLElement* xml_weight = doc.FirstChildElement("COLLADA")->FirstChildElement("library_controllers")->FirstChildElement()->FirstChildElement()->FirstChildElement("source")->NextSiblingElement()->NextSiblingElement()->FirstChildElement();
+	xml_weight->QueryIntAttribute("count", &weight_count);
+	std::stringstream str_weight(xml_weight->GetText());
+
+	for (int i = 0; i < weight_count; i++)
+	{
+		float temp;
+		str_weight >> temp;
+		weights_.push_back(temp);
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	/*joint_count = 0;
+	tinyxml2::XMLElement* xml_joint = doc.FirstChildElement("COLLADA")->FirstChildElement("library_controllers")->FirstChildElement()->FirstChildElement()->FirstChildElement("source")->FirstChildElement();
+	xml_joint->QueryIntAttribute("count", &joint_count);
+	std::stringstream str_joint(xml_joint->GetText());
+	 */
+	/*for (int i = 0; i < joint_count; i++)
+	{
+		Vec2f temp;
+		str_texcoord >> temp.x;
+		str_texcoord >> temp.y;
+		texturecos_.push_back(temp);
+	}*/
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	//tinyxml2::XMLElement* xml_hierachy = doc.FirstChildElement("COLLADA")->FirstChildElement("library_visual_scenes")->FirstChildElement("visual_scene")->FirstChildElement("node")->FirstChildElement("node");
+	//std::stringstream str_hierachy(xml_hierachy->GetText());
+
+	//ColladaModel::rootjoint = buildjoint(xml_hierachy);
+	joint_count = 0;
+	tinyxml2::XMLElement* xml_joint = doc.FirstChildElement("COLLADA")->FirstChildElement("library_controllers")->FirstChildElement("controller")->FirstChildElement("skin")->FirstChildElement("source")->FirstChildElement("Name_array");
+	xml_joint->QueryIntAttribute("count", &joint_count);
+	std::stringstream str_joint(xml_joint->GetText());
+
+	for (int i = 0; i < vertex_count / 3; i++)
+	{
+		std::string temp;
+		str_vertex >> temp;
+
+		jointIDs_.push_back(temp);
 	}
 
-	load_texture(filename, "_diffuse.tga", diffusemap_);
-	load_texture(filename, "_nm_tangent.tga", normalmap_);
 }
 
+//Joint buildjoint(tinyxml2::XMLElement* xml_hierachy)
+//{
+//	const char* name;
+//	xml_hierachy->QueryStringAttribute("name", &name);
+//	std::stringstream str_transform(xml_hierachy->FirstChildElement("matrix")->GetText());
+//	Matrix transform;
+//	
+//	if (xml_hierachy->FirstChildElement("node") != NULL)
+//	{
+//		xml_hierachy = xml_hierachy->FirstChildElement("node");
+//		do
+//		{
+////			buildjoint
+//		} while (xml_hierachy->NextSiblingElement() != NULL);
+//	}
+//}
+
 ColladaModel::~ColladaModel() {
 }
 
 void ColladaModel::ApplyTransform() {
 	Transform = Translation * Scale * Rotation;
 }
-
 void ColladaModel::translate(Vec3f tr) {
 	Translation[0][3] += tr.x;
 	Translation[1][3] += tr.y;
@@ -130,11 +218,9 @@ std::vector<int> ColladaModel::face(int idx) {
 	for (int i = 0; i < (int)faces_[idx].size(); i++) face.push_back(faces_[idx][i][0]);
 	return face;
 }
-
 Vec3f ColladaModel::vertix(int i) {
 	return vertices_[i];
 }
-
 Vec3f ColladaModel::vertix(int iface, int nthvert) {
 	return vertices_[faces_[iface][nthvert][0]];
 }
@@ -164,7 +250,7 @@ Vec3f ColladaModel::normal(Vec2f uvf) {
 }
 
 Vec2f ColladaModel::uv(int iface, int nthvert) {
-	return textureco_[faces_[iface][nthvert][2]];
+	return texturecos_[faces_[iface][nthvert][2]];
 }
 
 float ColladaModel::specular(Vec2f uvf) {
@@ -176,3 +262,36 @@ Vec3f ColladaModel::normal(int iface, int nthvert) {
 	int idx = faces_[iface][nthvert][1];
 	return normals_[idx].normalize();
 }
+
+Joint ColladaModel::getrootjoint()
+{
+	return rootjoint;
+}
+
+void ColladaModel::doanimation(Animation animation)
+{
+	//animator.doanimation(animation);
+}
+
+void ColladaModel::updateanimator()
+{
+	//animator.update();
+}
+
+std::vector<Matrix> ColladaModel::getjointtransforms()
+{
+	std::vector<Matrix> jointMat(joint_count);
+	addjointtoarray(rootjoint, jointMat);
+	return jointMat;
+}
+
+void ColladaModel::addjointtoarray(Joint parent, std::vector<Matrix> jointMat)
+{
+	jointMat[parent.index] = parent.getTransform();
+
+	for (auto& child : parent.children)
+	{
+		addjointtoarray(child, jointMat);
+	}
+}
+

OpenWindow/ColladaModel.h

@@ -6,6 +6,9 @@
 #include "tinyxml2.h"
 #include "geometry.h"
 #include "tgaimage.h"
+#include "joint.h"
+#include "animator.h"
+#include "animation.h"
 
 #include <cerrno>
 #include <cstdlib>
@@ -21,13 +24,41 @@ class ColladaModel {
 private:
 	int face_count;
 	int vertex_count;
-	int normal_count;
+	int joint_count;
-	int texcoord_count;
+
+	Joint rootjoint;
+	int rootindex=0;
+	char* rootname;
+	Matrix root_transform;
+
+	//Animator animator;
 
 	std::vector<std::vector<Vec3i> > faces_; //vertex/normal/uv
 	std::vector<Vec3f> vertices_;
 	std::vector<Vec3f> normals_;
-	std::vector<Vec2f> textureco_;
+	std::vector<Vec2f> texturecos_;
+
+	// #include <map>
+	// map<const char*, int> joint_names;
+	// joints.add(pair<const char*, int>("TORSO", 0));
+
+	// {TORSO, 0}
+	// {LEG,   1}
+	// {HAND,  2}
+
+	//joint_names.get("TORSO");
+
+	// 1. Get jointnames and map them to ids
+	// 2. get each joint and fill in the Joint class
+	// 3. get inversebindtransforms
+
+	// Vector -> Vectors -> (joint , weight)
+	std::vector<std::vector<Vec2i>> vertexweights_; //joint/weight
+	std::vector<std::string> jointIDs_;
+	// { TORSO , LEG, TEZ}
+	// { 0, 1, 2}
+	// jointIDs[0]
+	std::vector<float> weights_;
 
 	TGAImage diffusemap_;
 	TGAImage normalmap_;
@@ -35,6 +66,7 @@ private:
 
 	void load_texture(std::string filename, const char* suffix, TGAImage& img);
 public:
+	ColladaModel() = default;
 	ColladaModel(const char* filename);
 	~ColladaModel();
 
@@ -50,6 +82,7 @@ public:
 	Vec2f uv(int iface, int nthvert);
 
 	Matrix Transform;
+
 	Matrix Rotation;
 	Matrix Scale;
 	Matrix Translation;
@@ -62,5 +95,16 @@ public:
 	TGAColor diffuse(Vec2f uv);
 	float specular(Vec2f uv);
 	std::vector<int> face(int idx);
+
+	/////////////////////////////
+	Joint getrootjoint();
+
+	void doanimation(Animation animation);
+
+	void updateanimator();
+
+	std::vector<Matrix> getjointtransforms();
+
+	void addjointtoarray(Joint parent, std::vector<Matrix>);
 };
 #endif

OpenWindow/GeometryLibrary.cpp

@@ -1,9 +0,0 @@
-#include "GeometryLibrary.h"
-
-GeometryLibrary::GeometryLibrary(tinyxml2::XMLElement* xml)
-{
-	auto xm = xml;
-	auto g = Geometry(xml->FirstChildElement("geometry"));
-	m_Geometries.push_back(g);
-}
-

OpenWindow/GeometryLibrary.h

@@ -1,22 +0,0 @@
-#pragma once
-#include <vector>
-#include "geometry.h"
-
-class GeometryLibrary
-{
-	std::vector<Geometry>    m_Geometries;
-
-public:
-	GeometryLibrary() = default;
-	GeometryLibrary(tinyxml2::XMLElement * xml);
-};
-
-class VisualSceneLibrary
-{
-	Visualscene    m_visual_scene;
-
-public:
-	VisualSceneLibrary() = default;
-	VisualSceneLibrary(tinyxml2::XMLElement* xml);
-};
-

OpenWindow/Joint.cpp

@@ -0,0 +1,36 @@
+#include "Joint.h"
+
+Joint::Joint(int index, Matrix transform, char* name) {
+	Joint::index = index;
+	_transform = transform;
+	Joint::name = name;
+}
+
+Joint::~Joint() {
+}
+
+void Joint::addChild(Joint child) {
+	children.push_back(child);
+}
+
+Matrix Joint::getTransform() {
+	return _transform;
+}
+
+void Joint::setTransform(Matrix transform) {
+	_transform = transform;
+}
+
+Matrix Joint::getInverseBindTransform() {
+	return _inverseBindtransform;
+}
+
+void Joint::calculateInverseBindTransform(Matrix parentBindTransform) {
+	Matrix bindTransform = parentBindTransform * _localBindTransform;
+	_inverseBindtransform = bindTransform.invert();
+
+	for (auto &child : children)
+	{
+		child.calculateInverseBindTransform(bindTransform);
+	}
+}

OpenWindow/Joint.h

@@ -0,0 +1,28 @@
+#pragma once
+#include <vector>
+#include "geometry.h"
+class Joint
+{
+private:
+	Matrix _transform;	//model space
+	Matrix _localBindTransform;
+	Matrix _inverseBindtransform;
+
+public:
+	int index;
+	char* name;
+	std::vector<Joint> children;
+
+	Joint() = default;
+	Joint(int index,Matrix transform,char* name);
+	~Joint();
+
+	void addChild(Joint child);
+
+	Matrix getTransform();
+	void setTransform(Matrix transform);
+
+	Matrix getInverseBindTransform();
+	void calculateInverseBindTransform(Matrix parentBindTransform);
+};
+

OpenWindow/OpenWindow.vcxproj

@@ -115,28 +115,38 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="COLLADA.cpp" />
+    <ClCompile Include="animation.cpp" />
-    <ClCompile Include="ColladaModel.cpp" />
+    <ClCompile Include="animator.cpp" />
-    <ClCompile Include="data.cpp" />
+    <ClCompile Include="camera.cpp" />
+    <ClCompile Include="colladamodel.cpp" />
     <ClCompile Include="geometry.cpp" />
-    <ClCompile Include="GeometryLibrary.cpp" />
+    <ClCompile Include="joint.cpp" />
+    <ClCompile Include="jointtransform.cpp" />
+    <ClCompile Include="keyframe.cpp" />
     <ClCompile Include="main.cpp" />
     <ClCompile Include="model.cpp" />
+    <ClCompile Include="quaternion.cpp" />
     <ClCompile Include="renderer.cpp" />
     <ClCompile Include="tgaimage.cpp" />
     <ClCompile Include="tinyxml2.cpp" />
+    <ClCompile Include="util_renderer.cpp" />
     <ClCompile Include="util_window.cpp" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="COLLADA.h" />
+    <ClInclude Include="animation.h" />
-    <ClInclude Include="ColladaModel.h" />
+    <ClInclude Include="animator.h" />
-    <ClInclude Include="data.h" />
+    <ClInclude Include="colladamodel.h" />
     <ClInclude Include="geometry.h" />
-    <ClInclude Include="GeometryLibrary.h" />
+    <ClInclude Include="camera.h" />
+    <ClInclude Include="joint.h" />
+    <ClInclude Include="jointtransform.h" />
+    <ClInclude Include="keyframe.h" />
     <ClInclude Include="model.h" />
+    <ClInclude Include="quaternion.h" />
     <ClInclude Include="renderer.h" />
     <ClInclude Include="tgaimage.h" />
     <ClInclude Include="tinyxml2.h" />
+    <ClInclude Include="util_renderer.h" />
     <ClInclude Include="util_window.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

OpenWindow/OpenWindow.vcxproj.filters

@@ -33,19 +33,34 @@
     <ClCompile Include="renderer.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="ColladaModel.cpp">
+    <ClCompile Include="camera.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="util_renderer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="colladamodel.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
     <ClCompile Include="tinyxml2.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="COLLADA.cpp">
+    <ClCompile Include="joint.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="GeometryLibrary.cpp">
+    <ClCompile Include="animator.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="data.cpp">
+    <ClCompile Include="animation.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="keyframe.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jointtransform.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="quaternion.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
@@ -65,19 +80,34 @@
     <ClInclude Include="renderer.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="ColladaModel.h">
+    <ClInclude Include="camera.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="util_renderer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="colladamodel.h">
       <Filter>Header Files</Filter>
     </ClInclude>
     <ClInclude Include="tinyxml2.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="COLLADA.h">
+    <ClInclude Include="joint.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="GeometryLibrary.h">
+    <ClInclude Include="animator.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="data.h">
+    <ClInclude Include="animation.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="keyframe.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jointtransform.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="quaternion.h">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>

OpenWindow/animation.cpp

@@ -0,0 +1,17 @@
+#include "animation.h"
+
+Animation::Animation(float seconds, std::vector<Keyframe> keyframes)
+{
+	length = seconds;
+	keyframes_ = keyframes;
+}
+
+float Animation::getlength()
+{
+	return length;
+}
+
+std::vector<Keyframe> Animation::getkeyframe()
+{
+	return keyframes_;
+}

OpenWindow/animation.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "keyframe.h"
+#include <vector>
+
+class Animation {
+private:
+	float length;
+	std::vector<Keyframe> keyframes_;
+
+public:
+	Animation() = default;
+	Animation(float seconds, std::vector<Keyframe> keyframes);
+	float getlength();
+	std::vector<Keyframe>getkeyframe();
+};

OpenWindow/animator.cpp

@@ -0,0 +1,108 @@
+#include "animator.h"
+#include "colladamodel.h"
+
+void Animator::increaseAnimationTime()
+{
+	animation_time_ += (1/60.f);
+	if (animation_time_ > current_animation_.getlength()) 
+	{
+		animation_time_ = (int)(animation_time_) % (int)(current_animation_.getlength());
+	}
+}
+
+
+
+void Animator::applyPoseToJoints(std::map<std::string, Matrix> currentPose, Joint joint, Matrix parentTransform)
+{
+	Matrix currentLocalTransform = currentPose.at(joint.name);
+	Matrix currentTransform = parentTransform * currentLocalTransform;
+	for (Joint childJoint : joint.children) {
+		applyPoseToJoints(currentPose, childJoint, currentTransform);
+	}
+	currentTransform = currentTransform * joint.getInverseBindTransform();
+	joint.setTransform(currentTransform);
+}
+
+std::vector<Keyframe> Animator::getPreviousAndNextFrames()
+{
+	std::vector<Keyframe> allFrames = current_animation_.getkeyframe();
+	Keyframe previousFrame = allFrames[0];
+	Keyframe nextFrame = allFrames[0];
+	for (int i = 1; i < allFrames.capacity(); i++) {
+		nextFrame = allFrames[i];
+		if (nextFrame.gettimestamp() > animation_time_) {
+			break;
+		}
+		previousFrame = allFrames[i];
+	}
+	return std::vector<Keyframe>{ previousFrame, nextFrame };
+}
+
+float Animator::calculateProgression(Keyframe previousFrame, Keyframe nextFrame)
+{
+	float totalTime = nextFrame.gettimestamp() - previousFrame.gettimestamp();
+	float currentTime = animation_time_ - previousFrame.gettimestamp();
+	return currentTime / totalTime;
+}
+
+std::map<std::string, Matrix> Animator::interpolatePoses(Keyframe previousFrame, Keyframe nextFrame, float progression)
+{
+	std::map<std::string, Matrix> currentPose ;
+	std::set<std::string> key_set;
+	make_key_set(previousFrame.getJointKeyFrames(), key_set);
+	for (std::string jointName : key_set)
+	{
+		JointTransform previousTransform = previousFrame.getJointKeyFrames().at(jointName);
+		JointTransform nextTransform = nextFrame.getJointKeyFrames().at(jointName);
+		JointTransform currentTransform = JointTransform::interpolate(previousTransform, nextTransform, progression);
+		currentPose.insert_or_assign(jointName, currentTransform.getlocationtransform());
+		make_key_set(previousFrame.getJointKeyFrames(), key_set);
+	}
+	return currentPose;
+}
+
+Animator::Animator(ColladaModel entity)
+{
+	entity_ = &entity;
+}
+
+void Animator::doanimation(Animation animation)
+{
+	animation_time_ = 0;
+	current_animation_ = animation;
+}
+
+void Animator::update()
+{
+	if (&current_animation_ == NULL) {
+		return;
+	}
+	increaseAnimationTime();
+	std::map<std::string, Matrix> currentPose = calculateCurrentAnimationPose();
+	applyPoseToJoints(currentPose, entity_->getrootjoint(), Matrix());
+}
+
+std::map<std::string, Matrix> Animator::calculateCurrentAnimationPose()
+{
+	std::vector<Keyframe> frames = getPreviousAndNextFrames();
+	float progression = calculateProgression(frames[0], frames[1]);
+	return interpolatePoses(frames[0], frames[1], progression);
+}
+
+template<typename TK, typename TV>
+std::vector<TK> extract_keys(std::map<TK, TV> const& input_map) {
+	std::vector<TK> retval;
+	for (auto const& element : input_map) {
+		retval.push_back(element.first);
+	}
+	return retval;
+}
+
+template<typename TK, typename TV>
+std::vector<TV> extract_values(std::map<TK, TV> const& input_map) {
+	std::vector<TV> retval;
+	for (auto const& element : input_map) {
+		retval.push_back(element.second);
+	}
+	return retval;
+}

OpenWindow/animator.h

@@ -0,0 +1,46 @@
+#pragma once
+#include "animation.h"
+#include "geometry.h"
+#include "keyframe.h"
+#include "jointtransform.h"
+#include "joint.h"
+#include <map> 
+#include <set>
+class ColladaModel;
+
+class Animator {
+private:
+	ColladaModel* entity_;
+	Animation current_animation_;
+	float animation_time_;
+
+	void increaseAnimationTime();
+	std::map<std::string,Matrix> calculateCurrentAnimationPose();
+	void applyPoseToJoints(std::map<std::string, Matrix> currentPose, Joint joint, Matrix parentTransform);
+	std::vector<Keyframe> getPreviousAndNextFrames();
+	float calculateProgression(Keyframe previousFrame, Keyframe nextFrame);
+	std::map<std::string, Matrix> interpolatePoses(Keyframe previousFrame, Keyframe nextFrame, float progression);
+
+public:
+	Animator(ColladaModel entity);
+	void doanimation(Animation animation);
+	void update();	
+};
+
+template< class Key,
+	class T,
+	class Comparator,
+	class MapAllocator,
+	class SetAllocator>
+	void make_key_set(const std::map<Key, T, Comparator, MapAllocator>& map,
+		std::set<Key, Comparator, SetAllocator>& set)
+{
+	set.clear();
+	typedef typename std::map<Key, T, Comparator, MapAllocator> map_type;
+	typename map_type::const_iterator itr = map.begin();
+	while (map.end() != itr)
+	{
+		set.insert((itr++)->first);
+	}
+}
+

OpenWindow/camera.cpp

@@ -0,0 +1,121 @@
+#include "camera.h"
+
+Camera::Camera()
+{
+	fov = 30;
+	position = Vec3f(0, 0, 0);
+	rotation = Vec3f(0, 0, 0);
+	up = Vec3f(0, 0, 0);
+	right = Vec3f(0, 0, 0);
+	forward = Vec3f(0, 0, 0);
+
+	near_plane = 0;
+	far_plane = 15;
+	horizontal_camera_speed = 0.5;
+	vertical_camera_speed = 0.5;
+	vertical_camera_clamp_up = 90;
+	vertical_camera_clamp_down = -90;
+	movement_speed = 1.f;
+}
+
+Vec3f Camera::GetForward() {
+	return forward;
+}
+
+void Camera::Move(Vec3f move_vec) { 
+	position = position + move_vec; 
+}
+
+void Camera::SetPosition(Vec3f pos) { 
+	position = pos; 
+}
+void Camera::Rotate(Vec3f rot_vec) { 
+	rotation = rotation + rot_vec; 
+}
+void Camera::SetRotation(Vec3f rot) { 
+	rotation = rot; 
+}
+void Camera::SetFOV(int angle) { 
+	fov = angle; 
+}
+void Camera::SetVerticalRotSpeed(float speed) {
+	vertical_camera_speed = speed;
+}
+void Camera::SetHorizontalRotSpeed(float speed) {
+	horizontal_camera_speed = speed;
+}
+void Camera::SetClampRotUp(float angle) {
+	vertical_camera_clamp_up = angle;
+}
+void Camera::SetClampRotDown(float angle) {
+	vertical_camera_clamp_down = angle;
+}
+void Camera::SetNearPlane(float near_val) { 
+	near_plane = near_val; 
+}
+void Camera::SetFarPlane(float far_val) { 
+	far_plane = far_val; 
+}
+
+void Camera::rotate_hor(float d_angle) {
+	rotation.y += d_angle * horizontal_camera_speed;
+}
+void Camera::rotate_ver(float d_angle) {
+	rotation.x += d_angle * vertical_camera_speed;
+	rotation.x = std::fmin(rotation.x, vertical_camera_clamp_up);
+	rotation.x = std::fmax(rotation.x, vertical_camera_clamp_down);
+}
+
+
+void Camera::move_camera_left() { 
+	position = position - right * movement_speed;
+}
+void Camera::move_camera_right() { 
+	position = position + right * movement_speed;
+}
+void Camera::move_camera_forward() {
+	position = position + forward * movement_speed;
+}
+void Camera::move_camera_backward() {
+	position = position - forward * movement_speed;
+}
+void Camera::rise() {
+	position = position + Vec3f(0, movement_speed, 0);
+}
+void Camera::fall() {
+	position = position - Vec3f(0, movement_speed, 0);
+}
+
+void Camera::SetMovementSpeed(float speed) {
+	movement_speed = speed;
+}
+
+void Camera::ApplyChanges() {
+	forward = Vec3f(sin(rotation.y * DEG2RAD), -sin(rotation.x * DEG2RAD), -cosf(rotation.y*DEG2RAD) * cosf(rotation.x*DEG2RAD)).normalize();
+	right = Vec3f(cos(rotation.y*DEG2RAD), 0, sin(rotation.y * DEG2RAD)).normalize();
+	up = cross(right, forward).normalize();
+}
+
+Matrix Camera::GetModelViewMatrix() {
+	Vec3f center = position + forward;
+	Vec3f z = forward * -1;
+	Matrix Minv = Matrix::identity();
+	Matrix Tr = Matrix::identity();
+	for (int i = 0; i < 3; i++) {
+		Minv[0][i] = right[i];
+		Minv[1][i] = up[i];
+		Minv[2][i] = z[i];
+		Tr[i][3] = -center[i];
+	}
+	return Minv * Tr;
+}
+
+Matrix Camera::GetProjectionMatrix() {
+	Matrix Projection = Matrix::identity();
+	Projection[0][0] = 1 / tan(fov * DEG2RAD);
+	Projection[1][1] = 1 / tan(fov * DEG2RAD);
+	Projection[2][2] = (far_plane + near_plane) / (far_plane - near_plane);
+	Projection[2][3] = (-2 * far_plane * near_plane) / (far_plane - near_plane);
+	Projection[3][2] = -1;
+	return Projection;
+}

OpenWindow/camera.h

@@ -0,0 +1,50 @@
+#ifndef __CAMERA_HEADER__
+#define __CAMERA_HEADER__
+#include "geometry.h"
+
+class Camera {
+private:
+	Vec3f position;
+	Vec3f rotation;
+	Vec3f up;
+	Vec3f right;
+	Vec3f forward;
+	float fov;
+	float near_plane;
+	float far_plane;
+	float horizontal_camera_speed;
+	float vertical_camera_speed;
+	float vertical_camera_clamp_up;
+	float vertical_camera_clamp_down;
+	float movement_speed;
+
+public:
+	Camera();
+	void SetPosition(Vec3f pos);
+	void SetRotation(Vec3f rot);
+	void Move(Vec3f move_vec);
+	void Rotate(Vec3f rot_vec);
+	void SetFOV(int angle);
+	void SetNearPlane(float near_val);
+	void SetFarPlane(float far_val);
+	void SetVerticalRotSpeed(float speed);
+	void SetHorizontalRotSpeed(float speed);
+	void SetClampRotUp(float angle);
+	void SetClampRotDown(float angle);
+	void SetMovementSpeed(float speed);
+	Vec3f GetForward();
+
+	void rotate_hor(float d_angle);
+	void rotate_ver(float d_angle);
+	void move_camera_left();
+	void move_camera_right();
+	void move_camera_forward();
+	void move_camera_backward();
+	void rise();
+	void fall();
+
+	void ApplyChanges();
+	Matrix GetModelViewMatrix();
+	Matrix GetProjectionMatrix();
+};
+#endif

OpenWindow/data.cpp

@@ -1,187 +0,0 @@
-#include "data.h"
-
-Float_Array::Float_Array(tinyxml2::XMLElement* xml)
-{
-	xml->QueryIntAttribute("count", (int*)&m_Count);
-
-	const char* ch;
-	xml->QueryStringAttribute("count", &ch);
-	std::string s(ch);
-	m_ID = s;
-
-	std::stringstream str(xml->GetText());
-	m_Floats = new float[m_Count];
-
-	for (int i = 0; i < m_Count; i++)
-	{
-		 str >> m_Floats[i];
-	}
-	float f = m_Floats[55358];
-}
-
-Name_Array::Name_Array(tinyxml2::XMLElement* xml) 
-{
-	xml->QueryIntAttribute("count", (int*)&m_Count);
-
-	const char* ch;
-	xml->QueryStringAttribute("count", &ch);
-	std::string s(ch);
-	m_ID = s;
-
-	std::stringstream str(xml->GetText());
-	for (int i = 0; i < m_Count; i++)
-	{
-		str >> m_Names[i];
-	}
-}
-
-Param::Param(tinyxml2::XMLElement* xml) 
-{
-	const char* ch;
-	xml->QueryStringAttribute("name", &ch);
-	std::string s(ch);
-	m_Name = s;
-
-	const char* ch1;
-	xml->QueryStringAttribute("type", &ch1);
-	std::string s1(ch1);
-	m_Type = s1;
-}
-
-Accessor::Accessor(tinyxml2::XMLElement* xml) 
-{
-	const char* ch;
-	xml->QueryStringAttribute("source", &ch);
-	std::string s(ch);
-	m_Source = s;
-
-	xml->QueryIntAttribute("count", (int*)&m_Count);
-
-	xml->QueryIntAttribute("stride", (int*)&m_Stride);
-
-	for (tinyxml2::XMLElement* child = xml->FirstChildElement("param"); child != NULL; child = child->NextSiblingElement("param"))
-	{
-		Param p(child);
-		m_Params.push_back(p);
-	}
-}
-
-Technique_Common::Technique_Common(tinyxml2::XMLElement* xml)
-{
-	m_Accessor = Accessor(xml->FirstChildElement("accessor"));
-}
-
-Source::Source(tinyxml2::XMLElement* xml)
-{
-	const char* ch;
-	xml->QueryStringAttribute("id", &ch);
-	std::string s(ch);
-	m_ID = s;
-
-	tinyxml2::XMLElement* fa = xml->FirstChildElement("float_array");
-	if (fa != NULL)
-	{
-		m_Float_Array = Float_Array(fa);
-	}
-
-	tinyxml2::XMLElement* na = xml->FirstChildElement("Name_array");
-	if (na != NULL)
-	{
-		m_Name_Array = Name_Array(na);
-	}
-
-	m_TechniqueCommon = Technique_Common(xml->FirstChildElement("technique_common"));
-}
-
-Input::Input(tinyxml2::XMLElement* xml)
-{
-	const char* ch;
-	xml->QueryStringAttribute("semantic", &ch);
-	std::string s(ch);
-	m_Semantic = s;
-
-	const char* ch1;
-	xml->QueryStringAttribute("source", &ch1);
-	std::string s1(ch1);
-	m_Source = s1;
-	
-	if (xml->FindAttribute("offset"))
-	{
-		const char* ch2;
-		xml->QueryStringAttribute("offset", &ch2);
-		std::string s2(ch2);
-		m_Offset = s2;
-	}
-
-	if (xml->FindAttribute("set"))
-	{
-		const char* ch3;
-		xml->QueryStringAttribute("set", &ch3);
-		std::string s3(ch3);
-		m_Set = s3;
-	}
-}
-
-Vertices::Vertices(tinyxml2::XMLElement* xml)
-{
-	const char* ch;
-	xml->QueryStringAttribute("id", &ch);
-	std::string s(ch);
-	m_ID = s;
-
-	for (tinyxml2::XMLElement* child = xml->FirstChildElement("input"); child != NULL; child = child->NextSiblingElement("input"))
-	{
-		Input in(child);
-		m_Inputs.push_back(in);
-	}
-}
-
-P::P(tinyxml2::XMLElement* xml, unsigned int count)
-{
-	m_Count = count;
-	std::stringstream str(xml->GetText());
-	m_Indices = new unsigned short[count * 9];
-	for (int i = 0; i < count * 9; i++)
-	{
-		str >> m_Indices[i];
-	}
-}
-
-Triangles::Triangles(tinyxml2::XMLElement* xml)
-{
-	xml->QueryIntAttribute("count", (int*)&m_Count);
-
-	const char* ch;
-	xml->QueryStringAttribute("count", &ch);
-	std::string s(ch);
-	m_Material = s;
-
-	for (tinyxml2::XMLElement* child = xml->FirstChildElement("input"); child != NULL; child = child->NextSiblingElement("input"))
-	{
-		Input in(child);
-		m_Inputs.push_back(in);
-	}
-
-	tinyxml2::XMLElement* mp = xml->FirstChildElement("p");
-	if (mp != NULL)
-	{
-		m_P = P(mp, m_Count);
-	}
-}
-
-Mesh::Mesh(tinyxml2::XMLElement* xml)
-{
-	for (tinyxml2::XMLElement* child = xml->FirstChildElement("source"); child != NULL; child = child->NextSiblingElement("source"))
-	{
-		Source sc(child);
-		m_Sources.push_back(sc);
-	}
-
-	m_Vertices = Vertices(xml->FirstChildElement("vertices"));
-
-	for (tinyxml2::XMLElement* child = xml->FirstChildElement("triangles"); child != NULL; child = child->NextSiblingElement("triangles"))
-	{
-		Triangles tr(child);
-		m_Triangles.push_back(tr);
-	}
-}

OpenWindow/data.h

@@ -1,137 +0,0 @@
-#pragma once
-#include <iostream>
-#include <fstream>
-#include <sstream>
-#include <string>
-#include <vector>
-#include "tinyxml2.h"
-//----------------------------------------------//
-class Float_Array
-{
-	unsigned int        m_Count;
-	std::string              m_ID;
-	float* m_Floats;
-
-public:
-	Float_Array() = default;
-	Float_Array(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Name_Array
-{
-	unsigned int        m_Count;
-	std::string              m_ID;
-	std::string* m_Names;
-public:
-	Name_Array() = default;
-	Name_Array(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Param
-{
-	std::string              m_Name;
-	std::string              m_Type;
-public:
-	Param() = default;
-	Param(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Accessor
-{
-	std::string              m_Source;
-	unsigned int        m_Count;
-	unsigned int        m_Stride;
-	std::vector<Param>       m_Params;
-public:
-	Accessor () = default;
-	Accessor(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Technique_Common
-{
-	Accessor            m_Accessor;
-public:
-	Technique_Common() = default;
-	Technique_Common(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Source
-{
-	std::string              m_ID;
-	Float_Array         m_Float_Array;
-	Name_Array          m_Name_Array;
-	Technique_Common    m_TechniqueCommon;
-public:
-	Source() = default;
-	Source(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Input
-{
-	std::string              m_Semantic;
-	std::string              m_Source;
-	std::string              m_Offset;
-	std::string              m_Set;
-public:
-	Input() = default;
-	Input(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Vertices
-{
-	std::string              m_ID;
-	std::vector<Input>       m_Inputs;
-public:
-	Vertices() = default;
-	Vertices(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class P
-{
-	unsigned int         m_Count;
-	unsigned short* m_Indices;
-public:
-	P() = default;
-	P(tinyxml2::XMLElement* xml, unsigned int count);
-};
-//----------------------------------------------//
-class Triangles
-{
-	unsigned int        m_Count;
-	std::string              m_Material;
-	std::vector<Input>       m_Inputs;
-	P                   m_P;
-public:
-	Triangles() = default;
-	Triangles(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Mesh
-{
-	std::vector<Source>      m_Sources;
-	Vertices            m_Vertices;
-	std::vector<Triangles>   m_Triangles;
-public:
-	Mesh() = default;
-	Mesh(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Node
-{
-	std::string      m_ID;
-	std::string      m_name;
-	std::string      m_type;
-	std::string      m_sid;
-public:
-	Node() = default;
-	Node(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//
-class Matrix
-{	
-	std::string      m_sid;
-public:
-	Node() = default;
-	Node(tinyxml2::XMLElement* xml);
-};
-//----------------------------------------------//

OpenWindow/geometry.cpp

@@ -5,7 +5,3 @@ template <> template <> vec<3,float>::vec(const vec<3,int> &v)   : x(v.x),y(v.y)
 template <> template <> vec<2,int>  ::vec(const vec<2,float> &v) : x(int(v.x+.5f)),y(int(v.y+.5f)) {}
 template <> template <> vec<2,float>::vec(const vec<2,int> &v)   : x(v.x),y(v.y) {}
 
-Geometry::Geometry(tinyxml2::XMLElement* xml)
-{
-	m_Mesh = Mesh(xml->FirstChildElement("mesh"));
-}

OpenWindow/geometry.h

@@ -1,10 +1,12 @@
 #ifndef __GEOMETRY_H__
 #define __GEOMETRY_H__
+#define _USE_MATH_DEFINES
 #include <cmath>
 #include <vector>
 #include <cassert>
 #include <iostream>
-#include "data.h"
+
+#define DEG2RAD M_PI/180
 
 template<size_t DimCols,size_t DimRows,typename T> class mat;
 
@@ -234,46 +236,5 @@ typedef vec<3,  float> Vec3f;
 typedef vec<3,  int>   Vec3i;
 typedef vec<4,  float> Vec4f;
 typedef mat<4,4,float> Matrix;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-class Geometry
-{
-	Mesh                m_Mesh;
-public:
-	Geometry() = default;
-	Geometry(tinyxml2::XMLElement * xml);
-};
-
-class Visualscene
-{
-	node                m_Mesh;
-public:
-	Visualscene() = default;
-	Visualscene(tinyxml2::XMLElement* xml);
-};
 #endif //__GEOMETRY_H__
 

OpenWindow/jointtransform.cpp

@@ -0,0 +1,34 @@
+#include "jointtransform.h"
+
+
+
+JointTransform::JointTransform(Vec3f position, Quaternion rotation)
+{
+	position_ = position;
+	rotation_ = rotation;
+}
+
+Matrix JointTransform::getlocationtransform()
+{
+	Matrix matrix;
+	Vec4f column = Vec4f(position_.x, position_.y, position_.z, 1);
+	matrix.set_col(3, column);
+	matrix = matrix * rotation_.toRotationMatrix();
+	return matrix;
+}
+
+JointTransform JointTransform::interpolate(JointTransform frame1, JointTransform frame2, float progression)
+{
+	Vec3f pos = interpolate(frame1.position_, frame2.position_, progression);
+	Quaternion rot = Quaternion::interpolate(frame1.rotation_, frame2.rotation_, progression);
+	return JointTransform(pos, rot);
+}
+
+Vec3f JointTransform::interpolate(Vec3f start, Vec3f end, float progression)
+{
+	float x = start.x + (end.x - start.x) * progression;
+	float y = start.y + (end.y - start.y) * progression;
+	float z = start.z + (end.z - start.z) * progression;
+
+	return Vec3f(x,y,z);
+}

OpenWindow/jointtransform.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "quaternion.h"
+#include "geometry.h"
+
+class JointTransform
+{
+private:
+
+	Vec3f position_;
+
+	Quaternion rotation_;
+
+public:
+	JointTransform() = default;
+	JointTransform(Vec3f position,Quaternion rotation);
+
+	Matrix getlocationtransform();
+
+	static JointTransform interpolate(JointTransform frame1, JointTransform frame2, float progression);
+
+	static Vec3f interpolate(Vec3f start,Vec3f end, float progression);
+};
+

OpenWindow/keyframe.cpp

@@ -0,0 +1,17 @@
+#include "keyframe.h"
+
+Keyframe::Keyframe(float timestamp, std::map<std::string, JointTransform> pose)
+{
+	timestamp_ = timestamp;
+	pose_ = pose;
+}
+
+float Keyframe::gettimestamp()
+{
+	return timestamp_;
+}
+
+std::map<std::string, JointTransform> Keyframe::getJointKeyFrames()
+{
+	return pose_;
+}

OpenWindow/keyframe.h

@@ -0,0 +1,23 @@
+#ifndef HI
+#define HI
+
+// your declarations (and certain types of definitions) here
+
+
+#include <map>
+#include "jointtransform.h"
+
+
+class Keyframe{
+private:
+	float timestamp_;
+	std::map<std::string, JointTransform> pose_;
+
+public:
+	Keyframe() = default;
+	Keyframe(float timestamp,std::map<std::string, JointTransform> pose);
+	float gettimestamp();
+	std::map<std::string, JointTransform> getJointKeyFrames();
+};
+
+#endif

OpenWindow/main.cpp

@@ -3,26 +3,29 @@
 #include "renderer.h"
 #include "ctime"
 
-const int width = 800;
+const int screen_width = 1000;
-const int height = 800;
+const int screen_height = 1000;
+
+#define TARGET_FRAMERATE 30
+
+int prev_mouse_x = screen_width/2;
+int prev_mouse_y = screen_height/2;
+
+float TIME = 0;
 
 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 {
    HWND                hwnd;
    MSG                 Msg;
 
-   hwnd = create_window(width, height, hInstance);
+   hwnd = create_window(hInstance);
+   ShowCursor(false);
    ShowWindow(hwnd, nCmdShow);
 
-   char debug_str[100];
+   init_camera();
 
-   clock_t first_time = clock();
-   render();
-   clock_t end_time = clock();
-   Update();
 
-   sprintf_s(debug_str, "%f\n", (double)(end_time - first_time) / CLOCKS_PER_SEC);
+   SetTimer(hwnd, NULL, 1000 / TARGET_FRAMERATE, (TIMERPROC)FixedUpdate);
-   OutputDebugString(debug_str);
 
    while (GetMessage(&Msg, NULL, 0, 0))
    {
@@ -32,14 +35,51 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
    return Msg.wParam;
 }
 
+void HandleMouseMovement() {
+		POINT point;
+		GetCursorPos(&point);
+
+		camera.rotate_hor(point.x - prev_mouse_x);
+		camera.rotate_ver(point.y - prev_mouse_y);
+
+		SetCursorPos(prev_mouse_x, prev_mouse_y);
+}
+
+bool HandleButtonPressed() {
+	if (GetAsyncKeyState(VK_UP) & 0x8000)
+		camera.move_camera_forward();
+	if (GetAsyncKeyState(VK_DOWN) & 0x8000)
+		camera.move_camera_backward();
+	if (GetAsyncKeyState(VK_RIGHT) & 0x8000)
+		camera.move_camera_right();
+	if (GetAsyncKeyState(VK_LEFT) & 0x8000)
+		camera.move_camera_left();
+	if (GetAsyncKeyState(VK_SPACE) & 0x8000)
+		camera.rise();
+	if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
+		camera.fall();
+	return true;
+}
+
+void CALLBACK FixedUpdate(HWND hwnd, UINT message, UINT uInt, DWORD dWord)
+{
+	TIME += 0.167;
+	HandleButtonPressed();
+	camera.ApplyChanges();
+	render();
+	Update();
+}
+
 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
 	switch (message)
 	{
+	case WM_MOUSEMOVE:
+		HandleMouseMovement();
+		break;
 	case WM_RBUTTONDOWN:
 		break;
 	case WM_LBUTTONDOWN:
-		Update();
 		break;
 	case WM_CLOSE:
 		DestroyWindow(hwnd);

OpenWindow/model.cpp

@@ -48,7 +48,7 @@ Model::Model(const char *filename) : verts_(), faces_(), norms_(), uv_(), diffus
     std::cerr << "# v# " << verts_.size() << " f# "  << faces_.size() << " vt# " << uv_.size() << " vn# " << norms_.size() << std::endl;
     load_texture(filename, "_diffuse.tga", diffusemap_);
     load_texture(filename, "_nm_tangent.tga",      normalmap_);
-    //load_texture(filename, "_spec.tga",    specularmap_);
+    load_texture(filename, "_spec.tga",    specularmap_);
 }
 
 Model::~Model() {}
@@ -58,9 +58,9 @@ void Model::ApplyTransform() {
 }
 
 void Model::translate(Vec3f tr) {
-	Translation[0][3] += tr.x;
+	Translation[0][3] = tr.x;
-	Translation[1][3] += tr.y;
+	Translation[1][3] = tr.y;
-	Translation[2][3] += tr.z;
+	Translation[2][3] = tr.z;
 }
 void Model::rotate(Vec3f rot) {
 	rot = rot * DEG2RAD;

OpenWindow/quaternion.cpp

@@ -0,0 +1,104 @@
+#include "quaternion.h"
+#include <math.h>
+
+Quaternion::Quaternion(float x, float y, float z, float w)
+{
+	x_ = x;
+	y_ = y;
+	z_ = z;
+	w_ = w;
+	normalize();
+}
+
+void Quaternion::normalize()
+{
+	float mag = (float)sqrt(w_ * w_ + x_ * x_ + y_ * y_ + z_ * z_);
+	w_ /= mag;
+	x_ /= mag;
+	y_ /= mag;
+	z_ /= mag;
+}
+
+Matrix Quaternion::toRotationMatrix()
+{
+	Matrix matrix;
+	float xy = x_ * y_;
+	float xz = x_ * z_;
+	float xw = x_ * w_;
+	float yz = y_ * z_;
+	float yw = y_ * w_;
+	float zw = z_ * w_;
+	float xSquared = x_ * x_;
+	float ySquared = y_ * y_;
+	float zSquared = z_ * z_;
+	
+	Vec4f c0 = Vec4f(1 - 2 * (ySquared + zSquared), 2 * (xy - zw), 2 * (xz + yw),0);
+	Vec4f c1 = Vec4f(2 * (xy + zw), 1 - 2 * (xSquared + zSquared), 2 * (yz - xw), 0);
+	Vec4f c2 = Vec4f(2 * (xz - yw), 2 * (yz + xw), 1 - 2 * (xSquared + ySquared), 0);
+	Vec4f c3 = Vec4f(0,0,0,1);
+
+	matrix.set_col(0,c0);
+	matrix.set_col(1, c1);
+	matrix.set_col(2, c2);
+	matrix.set_col(3, c3);
+	return matrix;
+}
+
+Quaternion Quaternion::fromMatrix(Matrix matrix)
+{
+	float w_, x_, y_, z_;
+	float diagonal = matrix[0][0] + matrix[1][1] + matrix[2][2];
+	if (diagonal > 0) {
+		float w4 = (float)(sqrt(diagonal + 1.f) * 2.f);
+		w_ = w4 / 4.f;
+		x_ = (matrix[2][1] - matrix[1][2]) / w4;
+		y_ = (matrix[0][2] - matrix[2][0]) / w4;
+		z_ = (matrix[1][0] - matrix[0][1]) / w4;
+	}
+	else if ((matrix[0][0] > matrix[1][1]) && (matrix[0][0] > matrix[2][2])) {
+		float x4 = (float)(sqrt(1.f + matrix[0][0] - matrix[1][1] - matrix[2][2]) * 2.f);
+		w_ = (matrix[2][1] - matrix[1][2]) / x4;
+		x_ = x4 / 4.f;
+		y_ = (matrix[0][1] + matrix[1][0]) / x4;
+		z_ = (matrix[0][2] + matrix[2][0]) / x4;
+	}
+	else if (matrix[1][1] > matrix[2][2]) {
+		float y4 = (float)(sqrt(1.f + matrix[1][1] - matrix[0][0] - matrix[2][2]) * 2.f);
+		w_ = (matrix[0][2] - matrix[2][0]) / y4;
+		x_ = (matrix[0][1] + matrix[1][0]) / y4;
+		y_ = y4 / 4.f;
+		z_ = (matrix[1][2] + matrix[2][1]) / y4;
+	}
+	else {
+		float z4 = (float)(sqrt(1.f + matrix[2][2] - matrix[0][0] - matrix[1][1]) * 2.f);
+		w_ = (matrix[1][0] - matrix[0][1]) / z4;
+		x_ = (matrix[0][2] + matrix[2][0]) / z4;
+		y_ = (matrix[1][2] + matrix[2][1]) / z4;
+		z_ = z4 / 4.f;
+	}
+	return Quaternion(x_, y_, z_, w_);
+}
+
+Quaternion Quaternion::interpolate(Quaternion a, Quaternion b, float blend)
+ {
+	Quaternion result(0, 0, 0, 1);
+	float dot = a.w_ * b.w_ + a.x_ * b.x_ + a.y_ * b.y_ + a.z_ * b.z_;
+	float blendI = 1.f - blend;
+	if (dot < 0) {
+		result.w_ = blendI * a.w_ + blend * -b.w_;
+		result.x_ = blendI * a.x_ + blend * -b.x_;
+		result.y_ = blendI * a.y_ + blend * -b.y_;
+		result.z_ = blendI * a.z_ + blend * -b.z_;
+	}
+	else {
+		result.w_ = blendI * a.w_ + blend * b.w_;
+		result.x_ = blendI * a.x_ + blend * b.x_;
+		result.y_ = blendI * a.y_ + blend * b.y_;
+		result.z_ = blendI * a.z_ + blend * b.z_;
+	}
+	result.normalize();
+	return result;
+}
+
+
+

OpenWindow/quaternion.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "geometry.h"
+class Quaternion
+{
+private:
+	float x_, y_, z_, w_;
+
+
+public:
+	Quaternion() = default;
+	Quaternion(float x, float y, float z, float w);
+	void normalize();
+	Matrix toRotationMatrix();
+	static Quaternion fromMatrix(Matrix matrix);
+	static Quaternion interpolate(Quaternion a, Quaternion b, float blend);
+};
+

OpenWindow/renderer.cpp

@@ -1,225 +1,117 @@
-#define _USE_MATH_DEFINES
+#include "model.h"
-#include <vector>
-#include <algorithm>
-#include <limits>
-#include "tgaimage.h"
-#include "model.h"
-#include "geometry.h"
 #include "renderer.h"
 #include "util_window.h"
-#include <ctime>
+#include "camera.h"
-#include "ColladaModel.h"
+#include "util_renderer.h"
-#include "COLLADA.h"
+#include "colladamodel.h"
+
+#define HORIZONTAL_CAMERA_SPEED           0.1
+#define VERTICAL_CAMERA_SPEED             0.1
+#define VERTICAL_CAMERA_CLAMP_UP           90
+#define VERTICAL_CAMERA_CLAMP_DOWN        -90
+#define NEAR_CLIP_PLANE                     0 
+#define FAR_CLIP_PLANE                     10
+#define FOV                                30
+#define CAMERA_MOVEMENT_SPEED           0.05f
+#define DEFAULT_CAMERA_POS     Vec3f(0, 0, 5)
+#define DEFAULT_CAMERA_ROT     Vec3f(0, 0, 0)
+#define LIGHT_INTENSITY                   2.f
 
 const TGAColor white = TGAColor(255, 255, 255, 255);
 const TGAColor red = TGAColor(255, 0, 0, 255);
 const TGAColor green = TGAColor(0, 255, 0, 255);
 const TGAColor blue = TGAColor(0, 0, 255, 255);
 
-const int depth = 255;
+Matrix ViewPort = Matrix::identity();
+Matrix ModelView = Matrix::identity();
+Matrix Projection = Matrix::identity();
 
-float* z_buffer;
+ColladaModel* model = new ColladaModel("sssssssssssss.dae");
-Vec3f light_dir = Vec3f(0, 0, 1).normalize();
+Camera camera;
-Vec3f eye(0, 0, 3);
-Vec3f center(0, 0, 0);
 
-Matrix viewport(int x, int y, int w, int h) {
+Vec3f light_dir = Vec3f(1, 1, 1).normalize();
-	Matrix m = Matrix::identity();
-	m[0][3] = x + w / 2.f;
-	m[1][3] = y + h / 2.f;
-	m[2][3] = depth / 2.f;
 
-	m[0][0] = w / 2.f;
+void init_camera() {
-	m[1][1] = h / 2.f;
+	camera.SetPosition(DEFAULT_CAMERA_POS);
-	m[2][2] = depth / 2.f;
+	camera.SetRotation(DEFAULT_CAMERA_ROT);
-	return m;
+	camera.SetFOV(FOV);
+	camera.SetNearPlane(NEAR_CLIP_PLANE);
+	camera.SetFarPlane(FAR_CLIP_PLANE);
+	camera.SetClampRotDown(VERTICAL_CAMERA_CLAMP_DOWN);
+	camera.SetClampRotUp(VERTICAL_CAMERA_CLAMP_UP);
+	camera.SetHorizontalRotSpeed(HORIZONTAL_CAMERA_SPEED);
+	camera.SetVerticalRotSpeed(VERTICAL_CAMERA_SPEED);
+	camera.SetMovementSpeed(CAMERA_MOVEMENT_SPEED);
+	camera.ApplyChanges();
 }
 
-void line(Vec2i p0, Vec2i p1, TGAImage &image, TGAColor color)
+void clear_zbuffer()
 {
-	bool steep = false;
-
-	if (std::abs(p0[0] - p1[0]) < std::abs(p0[1] - p1[1])) {
-		std::swap(p0[0], p0[1]);
-		std::swap(p1[0], p1[1]);
-		steep = true;
-
-	}
-
-	if (p0[0] > p1[0]) {
-		std::swap(p0[0], p1[0]);
-		std::swap(p0[1], p1[1]);
-	}
-
-	int dx = p1[0] - p0[0];
-	int dy = p1[1] - p0[1];
-	int derror2 = std::abs(dy) * 2;
-	int error2 = 0;
-	int y = p0[1];
-	int y_step = p1[1] > p0[1] ? 1 : -1;
-	int dx_2 = 2 * dx;
-
-	for (int x = p0[0]; x <= p1[0]; x++) {
-		if (steep) {
-			image.set(y, x, color);
-		}
-		else {
-			image.set(x, y, color);
-		}
-		error2 += derror2;
-		if (error2 > dx) {
-			y += (y_step);
-			error2 -= dx_2;
-		}
-	}
-}
-
-Vec3f barycentric(Vec3f* pts, Vec3f P)
-{
-	Vec3f u = cross(
-		Vec3f(pts[2][0] - pts[0][0], pts[1][0] - pts[0][0], pts[0][0] - P[0]), // AC_x, AB_x, distance_x
-		Vec3f(pts[2][1] - pts[0][1], pts[1][1] - pts[0][1], pts[0][1] - P[1])  // AC_y, AB_y, distance_y
-	);
-
-	if (std::abs(u[2]) < 1) return Vec3f(-1, 1, 1);
-	return Vec3f(1.f - (u.x + u.y) / u.z, u.y / u.z, u.x / u.z);
-}
-
-
-void triangle(
-	Vec3f* pts,         // Needed
-	ColladaModel* model,       // Should be removed
-	Vec2f* diff_pts,    // Should be removed
-	float* intensities,
-	Vec3f camera_pos)   // Not really sure yet
-{
-
-	if (pts[0].y == pts[1].y && pts[0].y == pts[2].y) return; // i dont care about degenerate triangles
-	if (pts[0].y > pts[1].y) {
-		std::swap(pts[0], pts[1]);
-		std::swap(diff_pts[0], diff_pts[1]);
-		std::swap(intensities[0], intensities[1]);
-	}
-	if (pts[0].y > pts[2].y) {
-		std::swap(pts[0], pts[2]);
-		std::swap(diff_pts[0], diff_pts[2]);
-		std::swap(intensities[0], intensities[2]);
-	}
-	if (pts[1].y > pts[2].y) {
-		std::swap(pts[1], pts[2]);
-		std::swap(diff_pts[1], diff_pts[2]);
-		std::swap(intensities[1], intensities[2]);
-	}
-	      Vec2i bounding_box_min(screen_width - 1, screen_height - 1);
-        Vec2i bounding_box_max(0, 0);
-        Vec2i clamp(screen_width - 1, screen_height - 1);
-        TGAColor color = white;
-
-        for(int i = 0; i < 3; i++) {
-                for(int j =0; j < 2; j++) {
-                        bounding_box_min[j] = std::fmax(0, std::fmin(bounding_box_min[j], (int)pts[i][j]));
-                        bounding_box_max[j] = std::fmin(clamp[j], std::fmax(bounding_box_max[j], (int)pts[i][j]));
-                }
-        }
-
-        Vec3f P;
-        for(P.x = bounding_box_min.x; P.x <= bounding_box_max.x; P.x++) {
-                for(P.y = bounding_box_min.y; P.y <= bounding_box_max.y; P.y++) {
-                        Vec3f bc_coord = barycentric(pts, P);
-                        if(bc_coord.x < 0 || bc_coord.y < 0 || bc_coord.z < 0) continue;
-
-
-                        float intensity =
-                                intensities[0]
-                                + (intensities[1] - intensities[0]) * bc_coord[1]
-                                + (intensities[2] - intensities[0]) * bc_coord[2];
-
-
-                        // Interpolating Z using the barycentric coordinates
-                        P.z = 0;
-                        for(int i = 0; i < 3; i++) P.z += pts[i][2] * bc_coord[i];
-
-                        // Coloring according to the Z-Buffer
-                        if (P.z > z_buffer[(int)(P.x + P.y * screen_width)])
-                        {
-                                z_buffer[(int)(P.x + P.y * screen_width)] = P.z;
-
-                                // If diff_pts (Diffusemap Points) were passed, then find the
-								                     // color of the current pixel
-                                if(diff_pts) {
-                                        Vec2f diff_pt =
-                                                diff_pts[0]
-                                                + (diff_pts[1] - diff_pts[0]) * bc_coord[1]
-                                                + (diff_pts[2] - diff_pts[0]) * bc_coord[2];
-
-                                        color = model->diffuse(diff_pt);
-                                }
-								color = color * intensity;
-                                set_pixel(P.x, P.y, color_to_int(color));
-                        }
-                }
-        }
-}
-
-int color_to_int(TGAColor col) {
-	return (col[2] << 16) | (col[1] << 8) | col[0];
-}
-
-void init_zbuffer()
-{
-	z_buffer = new float[screen_width*screen_height];
 	for (int i = 0; i < screen_width * screen_height; i++)
-		z_buffer[i] = INT_MIN;
+		z_buffer[i] = 0;
 }
 
-Matrix lookat(Vec3f eye, Vec3f center, Vec3f up) {
+
-	Vec3f z = (eye - center).normalize();
+struct TextureShader : public IShader {
-	Vec3f x = cross(up, z).normalize();
+	mat<2, 3, float> varying_uv_coords;
-	Vec3f y = cross(z, x).normalize();
+	Matrix uniform_mit;
-	Matrix Minv = Matrix::identity();
+	Matrix uniform_m;
-	Matrix Tr = Matrix::identity();
+
-	for (int i = 0; i < 3; i++) {
+	virtual Vec4f vertex(int iface, int nthvert) {
-		Minv[0][i] = x[i];
+		varying_uv_coords.set_col(nthvert, model->uv(iface, nthvert));
-		Minv[1][i] = y[i];
+		Vec4f gl_Vertex = embed<4>(model->vertix(iface, nthvert));
-		Minv[2][i] = z[i];
+		return ViewPort * Projection * ModelView * gl_Vertex;									// transform it to screen coordinates
-		Tr[i][3] = -center[i];
 	}
-	return Minv * Tr;
+
+	virtual bool fragment(Vec3f bar, TGAColor &color) {
+		Vec2f uv = varying_uv_coords * bar;
+		Vec3f normal = Vec3f(uniform_mit * Vec4f(model->normal(uv))).normalize();
+		Vec3f light =  Vec3f(uniform_m * Vec4f(light_dir)).normalize();
+		Vec3f reflection = (normal * (normal*light*2.f) - light).normalize();
+		float spec_intensity = pow(std::fmax(reflection.z, 0.f), model->specular(uv));
+		float diff_intensity = std::fmax(0.f, (normal*light));
+		TGAColor c = model->diffuse(uv);
+		color = c;
+		for (int i = 0; i < 3; i++)
+			color[i] = std::fmin(1 + c[i] * (diff_intensity + 0.8 * spec_intensity), 255) * LIGHT_INTENSITY;
+		return false;                         
 	}
+};
+
 
 void render()
 {
-	COLLADA C("sssssssssssss.dae");
-	ColladaModel* model = new ColladaModel("african_head.dae");
-	Matrix ViewPort = viewport(screen_width / 8, screen_height / 8, screen_width * 3 / 4, screen_height * 3 / 4);
-	Matrix Projection = Matrix::identity();
-	Matrix ModelView = lookat(eye, center, Vec3f(0, 1, 0));
-
-	Projection[3][2] = -1.f / (eye - center).norm();
-
-	Matrix z = ViewPort * Projection * ModelView * model->Transform;
-
-	init_zbuffer();
-	for (int i = 0; i < model->nfaces(); i++)
 	{
-		std::vector<int> face = model->face(i);
+		//light_dir = camera.GetForward().normalize() * -1;
-		Vec3f screen_coords[3];
+	}
-		Vec3f world_coords[3];
-		Vec2f diffuse_coords[3];
-		float intensities[3];
 
-		for (int j = 0; j < 3; j++)
 	{
-			Vec3f v = model->vertix(face[j]);
+		viewport(0, 0, screen_width, screen_height, FAR_CLIP_PLANE, NEAR_CLIP_PLANE);
-			Vec4f v4(v);
+		Projection = camera.GetProjectionMatrix();
-			Vec3f coord(z * v4);
+		ModelView = camera.GetModelViewMatrix();
-
-			screen_coords[j] = coord;
-			world_coords[j] = v;
-			diffuse_coords[j] = model->uv(i, j);
-			intensities[j] = model->normal(i, j) * light_dir;
 	}
 	
-		triangle(screen_coords, model, diffuse_coords, intensities, Vec3f(0, 0, 5));
+
+	//Matrix z = ViewPort * Projection * ModelView * model->Transform;
+
+	clear_zbuffer();
+	TextureShader shader;
+	shader.uniform_m =   (Projection);
+	shader.uniform_mit = (Projection).invert_transpose();
+
+	#pragma omp parallel for
+	for (int i = 0; i < model->nfaces(); i++) {
+		Vec4f screen_coords[3];
+		bool out = true;
+		#pragma omp parallel for
+		for (int j = 0; j < 3; j++) {
+			screen_coords[j] = shader.vertex(i, j);
+			Vec3f screen3(screen_coords[j]);
+
+			if (screen3.x > 0 && screen3.x < screen_width && screen3.y > 0 && screen3.y < screen_height) out = false;
+		}
+		if(!out)
+			triangle(screen_coords, shader);
 	}
 }
+

OpenWindow/renderer.h

@@ -1,7 +1,14 @@
 #ifndef RENDERER_HEADER
 #define RENDERER_HEADER
 #include "tgaimage.h"
+#include "camera.h"
 
+
+extern float* z_buffer;
+extern Camera camera;
+extern float TIME;
+
+void init_camera();
 void render();
 int color_to_int(TGAColor col);
 #endif

OpenWindow/util_renderer.cpp

@@ -0,0 +1,73 @@
+#include "util_renderer.h"
+#include "util_window.h"
+
+IShader::~IShader() {}
+
+float* z_buffer = new float[screen_width * screen_height];
+
+void viewport(int x, int y, int w, int h, int far_plane, int near_plane) {
+	ViewPort[0][3] = x + w / 2.f;
+	ViewPort[1][3] = y + h / 2.f;
+	ViewPort[2][3] = (far_plane-near_plane) / 2.f;
+
+	ViewPort[0][0] = w / 2.f;
+	ViewPort[1][1] = h / 2.f;
+	ViewPort[2][2] = (far_plane+near_plane) / 2.f;
+}
+
+int color_to_int(TGAColor col) {
+	return (col[2] << 16) | (col[1] << 8) | col[0];
+}
+
+Vec3f barycentric(Vec3f* pts, Vec3f P)
+{
+	Vec3f u = cross(
+		Vec3f(pts[2][0] - pts[0][0], pts[1][0] - pts[0][0], pts[0][0] - P[0]), // AC_x, AB_x, distance_x
+		Vec3f(pts[2][1] - pts[0][1], pts[1][1] - pts[0][1], pts[0][1] - P[1])  // AC_y, AB_y, distance_y
+	);
+
+	if (std::abs(u[2]) < 1) return Vec3f(-1, 1, 1);
+	return Vec3f(1.f - (u.x + u.y) / u.z, u.y / u.z, u.x / u.z);
+}
+
+void triangle( Vec4f* pts, IShader &shader)
+{
+	Vec3f pts3[3];
+	for (int i = 0; i < 3; i++)
+		pts3[i] = Vec3f(pts[i]);
+
+	if (pts3[0].y == pts3[1].y && pts3[0].y == pts3[2].y) return; // i dont care about degenerate triangles
+	//if (pts3[0].y > pts3[1].y) { std::swap(pts3[0], pts3[1]); }
+	//if (pts3[0].y > pts3[2].y) { std::swap(pts3[0], pts3[2]); }
+	//if (pts3[1].y > pts3[2].y) { std::swap(pts3[1], pts3[2]); }
+
+	Vec2i bounding_box_min(screen_width - 1, screen_height - 1);
+	Vec2i bounding_box_max(0, 0);
+	Vec2i clamp(screen_width - 1, screen_height - 1);
+
+	#pragma omp parallel for
+	for (int i = 0; i < 3; i++)
+		for (int j = 0; j < 2; j++) {
+			bounding_box_min[j] = std::fmax(0, std::fmin(bounding_box_min[j], (int)pts3[i][j]));
+			bounding_box_max[j] = std::fmin(clamp[j], std::fmax(bounding_box_max[j], (int)pts3[i][j]));
+		}
+
+
+	Vec3i P;
+	#pragma omp parallel for
+	for (P.x = bounding_box_min.x; P.x <= bounding_box_max.x; P.x++) {
+		for (P.y = bounding_box_min.y; P.y <= bounding_box_max.y; P.y++) {
+			Vec3f bc_coord = barycentric(pts3, P);
+			float frag_depth = 0;
+			for (int i = 0; i < 3; i++)
+				frag_depth += pts3[i][2] * bc_coord[i];
+			if (bc_coord.x < 0 || bc_coord.y < 0 || bc_coord.z < 0 || z_buffer[ P.x + P.y * screen_width ]>frag_depth) continue;
+			TGAColor color;
+			bool discard = shader.fragment(bc_coord, color);
+			if (!discard) {
+				z_buffer[P.x + P.y * screen_width] = frag_depth;
+				set_pixel(P.x, P.y, color_to_int(color));
+			}
+		}
+	}
+}

OpenWindow/util_renderer.h

@@ -0,0 +1,22 @@
+#pragma once
+#include "tgaimage.h"
+#include "model.h"
+#include "geometry.h"
+
+extern Matrix ModelView;
+extern Matrix ViewPort;
+extern Matrix Projection;
+
+void viewport(int x, int y, int w, int h, int far, int near);
+
+struct IShader {
+    virtual ~IShader();
+    virtual Vec4f vertex(int iface, int nthvert) = 0;
+    virtual bool fragment(Vec3f bar, TGAColor &color) = 0;
+};
+
+//void triangle(Vec4f *pts, IShader &shader, TGAImage &image, TGAImage &zbuffer);
+
+//void triangle( Vec3f* pts, Vec2f* diff_pts, Model* model, float* intensities)
+
+void triangle(Vec4f* pts, IShader &shader);

OpenWindow/util_window.cpp

@@ -8,8 +8,6 @@ BITMAPINFO info;
 HBITMAP hbm;
 const int BITCOUNT_PER_PIXEL = 24;
 const int title_height = 39;
-int screen_width = 0;
-int screen_height = 0;
 long long bytes_per_row;
 bool screen_changed = false;
 HDC hdc;
@@ -17,15 +15,13 @@ HDRAWDIB hdd;
 HDC bitmap_dc;
 HGDIOBJ old_obj;
 
-HWND create_window(int width, int height, HINSTANCE &hInstance) {
+HWND create_window(HINSTANCE &hInstance) {
 	HWND hWnd;
 	WNDCLASSEX wnd_class = { 0 };
 	init_wnd_class(wnd_class, hInstance);
 
 	RegisterClassEx(&wnd_class);
 
-	screen_width = width;
-	screen_height = height;
 	create_hwnd(hWnd, hInstance);
 	init(hWnd);
 
@@ -107,6 +103,16 @@ void set_pixel(unsigned int x, unsigned int y, unsigned int color) {
 		screen_changed = true;
 }
 
-void Update() {
+void clear_screen() {
-   DrawDibDraw(hdd, hdc, 0, 0, screen_width, screen_height, &info.bmiHeader, pixels, 0, 0, screen_width, screen_height, 0);
+	for (int x = 0; x < screen_width; x++)
+		for (int y = 0; y < screen_height; y++)
+			set_pixel(x, y, 0);
+}
+
+void Update() {
+	if (screen_changed) {
+		DrawDibDraw(hdd, hdc, 0, 0, screen_width, screen_height, &info.bmiHeader, pixels, 0, 0, screen_width, screen_height, 0);
+		clear_screen();
+		screen_changed = false;
+	}
 }

OpenWindow/util_window.h

@@ -18,18 +18,19 @@ extern HDC hdc;
 extern HDRAWDIB hdd;
 extern HDC bitmap_dc;
 extern HGDIOBJ old_obj;
-extern int screen_width;
+extern const int screen_width;
-extern int screen_height;
+extern const int screen_height;
 
 
 void init(HWND &hWnd);
 void destroy_window(); 
-HWND create_window(int width, int height, HINSTANCE &hInstance);
+HWND create_window(HINSTANCE &hInstance);
 void create_hwnd(HWND &hwnd, HINSTANCE &hInstance);
 void init_wnd_class(WNDCLASSEX &wndClass, HINSTANCE &hInstance);
 void set_pixel(unsigned int x, unsigned int y, unsigned int color);
 void Update();
 
 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
+void CALLBACK FixedUpdate(HWND hwnd, UINT message, UINT uInt, DWORD dWord);
 
 #endif