done

.dae integrated

OpenWindow/ColladaModel.cpp

@@ -0,0 +1,178 @@
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include "ColladaModel.h"
+
+#define PI 3.14159265358979323846
+#define DEG2RAD PI/180
+
+ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normals_()
+{
+	Transform = Matrix::identity();
+	Rotation = Matrix::identity();
+	Scale = Matrix::identity();
+	Translation = Matrix::identity();
+
+	tinyxml2::XMLDocument doc;
+	doc.LoadFile(filename);
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	////////////////////////////////////////////////faces//////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	face_count = 0;
+	tinyxml2::XMLElement* xml_face = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("triangles");
+	xml_face->QueryIntAttribute("count", &face_count); //get count
+	std::stringstream str_triangle(xml_face->FirstChildElement("p")->GetText()); //get values as a string
+
+	for (int i = 0; i < face_count; i++)
+	{
+		faces_.push_back(std::vector<Vec3i>());
+		for (int j = 0; j < 3; j++)
+		{
+			Vec3i temp;
+			str_triangle >> temp.x;
+			str_triangle >> temp.y;
+			str_triangle >> temp.z;
+			faces_[i].push_back(temp);
+		}
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	////////////////////////////////////////////////vertex/////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	vertex_count = 0;
+	tinyxml2::XMLElement* xml_vertex = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("source")->FirstChildElement("float_array");
+	xml_vertex->QueryIntAttribute("count", &vertex_count);
+	std::stringstream str_vertex(xml_vertex->GetText());
+
+	for (int i = 0; i < vertex_count / 3; i++)
+	{
+		Vec3f temp;
+		str_vertex >> temp.x;
+		str_vertex >> temp.y;
+		str_vertex >> temp.z;
+		vertices_.push_back(temp);
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	/////////////////////////////////////////////normal////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	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());
+
+	for (int i = 0; i < normal_count / 3; i++)
+	{
+		Vec3f temp;
+		str_normal >> temp.x;
+		str_normal >> temp.y;
+		str_normal >> temp.z;
+		normals_.push_back(temp);
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	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());
+
+	for (int i = 0; i < texcoord_count / 2; i++)
+	{
+		Vec2f temp;
+		str_texcoord >> temp.x;
+		str_texcoord >> temp.y;
+		textureco_.push_back(temp);
+	}
+
+	load_texture(filename, "_diffuse.tga", diffusemap_);
+	load_texture(filename, "_nm_tangent.tga", normalmap_);
+}
+
+ColladaModel::~ColladaModel() {
+}
+
+void ColladaModel::ApplyTransform() {
+	Transform = Translation * Scale * Rotation;
+}
+
+void ColladaModel::translate(Vec3f tr) {
+	Translation[0][3] += tr.x;
+	Translation[1][3] += tr.y;
+	Translation[2][3] += tr.z;
+}
+void ColladaModel::rotate(Vec3f rot) {
+	rot = rot * DEG2RAD;
+
+	Rotation[0][0] = cosf(rot.y) * cosf(rot.z);
+	Rotation[0][1] = -cosf(rot.y) * sinf(rot.z);
+	Rotation[0][2] = sinf(rot.y);
+	Rotation[1][0] = sinf(rot.x) * sinf(rot.y) * cosf(rot.z) + cosf(rot.x) * sinf(rot.z);
+	Rotation[1][1] = -sinf(rot.x) * sinf(rot.y) * sinf(rot.z) + cosf(rot.x) * cosf(rot.z);
+	Rotation[1][2] = -sinf(rot.x) * cosf(rot.y);
+	Rotation[2][0] = -cosf(rot.x) * sinf(rot.y) * cosf(rot.z) + sinf(rot.x) * sinf(rot.z);
+	Rotation[2][1] = cosf(rot.x) * sinf(rot.y) * sinf(rot.z) + sinf(rot.x) * cosf(rot.z);
+	Rotation[2][2] = cosf(rot.x) * cosf(rot.y);
+}
+void ColladaModel::scale(Vec3f scl) {
+	Scale[0][0] = scl.x;
+	Scale[1][1] = scl.y;
+	Scale[2][2] = scl.z;
+}
+
+int ColladaModel::nfaces() {
+	return face_count;
+}
+int ColladaModel::nvertices() {
+	return vertex_count;
+}
+
+std::vector<int> ColladaModel::face(int idx) {
+	std::vector<int> face;
+	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]];
+}
+
+void ColladaModel::load_texture(std::string filename, const char* suffix, TGAImage& img) {
+	std::string texfile(filename);
+	size_t dot = texfile.find_last_of(".");
+	if (dot != std::string::npos) {
+		texfile = texfile.substr(0, dot) + std::string(suffix);
+		std::cerr << "texture file " << texfile << " loading " << (img.read_tga_file(texfile.c_str()) ? "ok" : "failed") << std::endl;
+		img.flip_vertically();
+	}
+}
+
+TGAColor ColladaModel::diffuse(Vec2f uvf) {
+	Vec2i uv(uvf[0] * diffusemap_.get_width(), uvf[1] * diffusemap_.get_height());
+	return diffusemap_.get(uv[0], uv[1]);
+}
+
+Vec3f ColladaModel::normal(Vec2f uvf) {
+	Vec2i uv(uvf[0] * normalmap_.get_width(), uvf[1] * normalmap_.get_height());
+	TGAColor c = normalmap_.get(uv[0], uv[1]);
+	Vec3f res;
+	for (int i = 0; i < 3; i++)
+		res[2 - i] = (float)c[i] / 255.f * 2.f - 1.f;
+	return res;
+}
+
+Vec2f ColladaModel::uv(int iface, int nthvert) {
+	return textureco_[faces_[iface][nthvert][2]];
+}
+
+float ColladaModel::specular(Vec2f uvf) {
+	Vec2i uv(uvf[0] * specularmap_.get_width(), uvf[1] * specularmap_.get_height());
+	return specularmap_.get(uv[0], uv[1])[0] / 1.f;
+}
+
+Vec3f ColladaModel::normal(int iface, int nthvert) {
+	int idx = faces_[iface][nthvert][1];
+	return normals_[idx].normalize();
+}

OpenWindow/ColladaModel.h

@@ -0,0 +1,66 @@
+#ifndef __MODEL_s__
+#define __MODEL_s__
+#pragma once
+
+#include "ColladaModel.h"
+#include "tinyxml2.h"
+#include "geometry.h"
+#include "tgaimage.h"
+
+#include <cerrno>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <sstream>
+#include <vector>
+
+class ColladaModel {
+private:
+	int face_count;
+	int vertex_count;
+	int normal_count;
+	int texcoord_count;
+
+	std::vector<std::vector<Vec3i> > faces_; //vertex/normal/uv
+	std::vector<Vec3f> vertices_;
+	std::vector<Vec3f> normals_;
+	std::vector<Vec2f> textureco_;
+
+	TGAImage diffusemap_;
+	TGAImage normalmap_;
+	TGAImage specularmap_;
+
+	void load_texture(std::string filename, const char* suffix, TGAImage& img);
+public:
+	ColladaModel(const char* filename);
+	~ColladaModel();
+
+	int nfaces();
+	int nvertices();
+
+	Vec3f vertix(int iface, int nthvert);
+	Vec3f vertix(int i);
+
+	Vec3f normal(int iface, int nthvert);
+	Vec3f normal(Vec2f uv);
+
+	Vec2f uv(int iface, int nthvert);
+
+	Matrix Transform;
+	Matrix Rotation;
+	Matrix Scale;
+	Matrix Translation;
+
+	void translate(Vec3f tr);
+	void rotate(Vec3f rot);
+	void scale(Vec3f scl);
+	void ApplyTransform();
+
+	TGAColor diffuse(Vec2f uv);
+	float specular(Vec2f uv);
+	std::vector<int> face(int idx);
+};
+#endif

OpenWindow/OpenWindow.vcxproj

@@ -22,32 +22,32 @@
     <VCProjectVersion>15.0</VCProjectVersion>
     <ProjectGuid>{42971E68-F861-4D45-9DA6-F5E163705584}</ProjectGuid>
     <RootNamespace>OpenWindow</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
@@ -115,18 +115,22 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="ColladaModel.cpp" />
     <ClCompile Include="geometry.cpp" />
     <ClCompile Include="main.cpp" />
     <ClCompile Include="model.cpp" />
     <ClCompile Include="renderer.cpp" />
     <ClCompile Include="tgaimage.cpp" />
+    <ClCompile Include="tinyxml2.cpp" />
     <ClCompile Include="util_window.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="ColladaModel.h" />
     <ClInclude Include="geometry.h" />
     <ClInclude Include="model.h" />
     <ClInclude Include="renderer.h" />
     <ClInclude Include="tgaimage.h" />
+    <ClInclude Include="tinyxml2.h" />
     <ClInclude Include="util_window.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

OpenWindow/OpenWindow.vcxproj.filters

@@ -33,6 +33,12 @@
     <ClCompile Include="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>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="util_window.h">
@@ -50,5 +56,11 @@
     <ClInclude Include="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>
   </ItemGroup>
 </Project>

OpenWindow/renderer.cpp

@@ -8,6 +8,7 @@
 #include "renderer.h"
 #include "util_window.h"
 #include <ctime>
+#include "ColladaModel.h"
 
 const TGAColor white = TGAColor(255, 255, 255, 255);
 const TGAColor red = TGAColor(255, 0, 0, 255);
@@ -86,7 +87,7 @@ Vec3f barycentric(Vec3f* pts, Vec3f P)
 
 void triangle(
 	Vec3f* pts,         // Needed
-	Model* model,       // Should be removed
+	ColladaModel* model,       // Should be removed
 	Vec2f* diff_pts,    // Should be removed
 	float* intensities,
 	Vec3f camera_pos)   // Not really sure yet
@@ -187,20 +188,13 @@ Matrix lookat(Vec3f eye, Vec3f center, Vec3f up) {
 
 void render()
 {
-	Model* model = new Model("african_head.obj");
+	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();
 
-	model->rotate(Vec3f(0, 0, 90));
-	model->scale(Vec3f(0.5, 0.5, 0.5));
-	model->translate(Vec3f(0.5, 0.5, -1));
-
-	model->ApplyTransform();
-	
 	Matrix z = ViewPort * Projection * ModelView * model->Transform;
 
 	init_zbuffer();
@@ -214,10 +208,10 @@ void render()
 
 		for (int j = 0; j < 3; j++)
 		{
-			Vec3f v = model->vert(face[j]);
+			Vec3f v = model->vertix(face[j]);
 			Vec4f v4(v);
 			Vec3f coord(z * v4);
-			
+
 			screen_coords[j] = coord;
 			world_coords[j] = v;
 			diffuse_coords[j] = model->uv(i, j);
@@ -226,7 +220,4 @@ void render()
 
 		triangle(screen_coords, model, diffuse_coords, intensities, Vec3f(0, 0, 5));
 	}
-
+}
-	delete model;
-}
-