.gitmodules

@@ -1,9 +1,9 @@
 [submodule "wfobj"]
 	path = wfobj
-	url = ../util/wfobj.git
-[submodule "loadTexture"]
-	path = loadTexture
-	url = ../util/loadTexture.git
-[submodule "glslUtil"]
-	path = glslUtil
-	url = ../util/glslUtil.git
+	url = ../wfobj.git
+[submodule "FileLoader"]
+	path = FileLoader
+	url = ../FileLoader.git
+[submodule "TextureLoader"]
+	path = TextureLoader
+	url = ../TextureLoader.git

FileLoader

@@ -0,0 +1 @@
+Subproject commit 8abf3ff02b6a8cc7024006a9379fd7e8b07cd4a6

Makefile

@@ -1,8 +1,39 @@
 
-export SCONSFLAGS := -Q
+WINCHECK := $(shell which msys-1.0.dll >/dev/null 2>&1; if [ $$? -eq 0 ]; then echo MSYS; fi)
+ifeq ($(strip $(WINCHECK)),)
+WINDOWS  := 0
+else
+WINDOWS  := 1
+endif
 
-all:
-	@scons
+ifeq ($(WINDOWS),1)
+GLLIBS     := -lopengl32 -lglu32
+WINDOWSLIBS := -lmingw32
+else
+GLLIBS     := -lGL -lGLU
+endif
+
+export CXXFLAGS := -O2 $(shell sdl-config --cflags) -I$(CURDIR)
+LDFLAGS  := $(GLLIBS) $(WINDOWSLIBS) $(shell sdl-config --libs) -lSDL_image
+TARGET   := wfobj-view
+
+.PHONY: all clean TextureCache wfobj
+
+all: $(TARGET)
+	
+$(TARGET): $(TARGET).o TextureCache wfobj
+	$(CXX) -o $(TARGET) $< TextureCache/TextureCache.o wfobj/WFObj.o $(LDFLAGS)
+
+%.o: %.cc
+	$(CXX) -c -o $@ $< $(CXXFLAGS)
+
+TextureCache:
+	make -C TextureCache
+
+wfobj:
+	make -C wfobj
 
 clean:
-	@scons -c
+	make -C TextureCache clean
+	make -C wfobj clean
+	-rm -f *.o *~ $(TARGET)

SConstruct

@@ -1,17 +0,0 @@
-# vim:filetype=python
-
-import os
-import sys
-
-env = Environment(LIBS = ['GL', 'GLU', 'SDL_image'],
-        CFLAGS = ['-Wall', '-DGL_GLEXT_PROTOTYPES'],
-        CXXFLAGS = ['-Wall', '-DGL_GLEXT_PROTOTYPES'])
-env.ParseConfig('sdl-config --cflags --libs')
-
-sources = [Glob('*.cc'), Glob('wfobj/WFObj.cc'), Glob('loadTexture/*.c'),
-        Glob('glslUtil/*.c')]
-env.Program('wfobj-view', sources)
-
-if len(os.listdir('wfobj')) == 0:
-    sys.stderr.write('Warning: wfobj submodule not initialized\n')
-    sys.stderr.write('Warning: perhaps you should run `git submodule update --init`\n')

TextureCache/Makefile

@@ -0,0 +1,12 @@
+
+CXX      := g++
+CXXFLAGS ?= -O2
+OBJS     := TextureCache.o
+
+all: $(OBJS)
+
+%.o: %.cc %.hh
+	$(CXX) -c -o $@ $< $(CXXFLAGS)
+
+clean:
+	-rm -f *~ *.o

TextureCache/TextureCache.cc

@@ -0,0 +1,94 @@
+
+#include <SDL.h>
+#include <SDL_image.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <iostream>
+#include "TextureCache.h"
+using namespace std;
+
+GLuint TextureCache::load(const string & filename)
+{
+	map<string,GLuint>::iterator it = m_cache.find(filename);
+	if (it != m_cache.end())
+		return it->second;
+	GLuint tex = loadTexture(filename.c_str());
+	m_cache[filename] = tex;
+	return tex;
+}
+
+GLuint TextureCache::loadTexture(const char * filename,
+                                 bool mipmaps,
+                                 int mode,
+                                 int quality)
+{
+	GLuint texture;
+	SDL_Surface * temp = IMG_Load(filename);
+	if (!temp)
+	{
+		cerr << "Failed to load image '" << filename << "'!" << endl;
+		return 0;
+	}
+
+	SDL_PixelFormat fmt;
+	fmt.palette = NULL;
+	fmt.BitsPerPixel = 32;
+	fmt.BytesPerPixel = 4;
+	fmt.Rmask = 0x000000FF;
+	fmt.Gmask = 0x0000FF00;
+	fmt.Bmask = 0x00FF0000;
+	fmt.Amask = 0xFF000000;
+	fmt.Rshift = 0;
+	fmt.Gshift = 8;
+	fmt.Bshift = 16;
+	fmt.Ashift = 24;
+
+	SDL_Surface * texsurf = SDL_ConvertSurface(temp, &fmt, SDL_SWSURFACE);
+	SDL_FreeSurface(temp);
+	if (!texsurf)
+	{
+		cerr << '\'' << filename << "' was not converted properly!" << endl;
+		return 0;
+	}
+	unsigned int * pixels = new unsigned int[texsurf->w * texsurf->h];
+	int y;
+	unsigned int dstOffset = texsurf->w * (texsurf->h - 1);
+	unsigned int srcOffset = 0;
+	for (y = 0; y < texsurf->h; y++)
+	{
+		memcpy(pixels + dstOffset,
+			((unsigned int *)texsurf->pixels) + srcOffset,
+			texsurf->w << 2);
+		dstOffset -= texsurf->w;
+		srcOffset += texsurf->w;
+	}
+	glGenTextures(1, &texture);
+	glBindTexture(GL_TEXTURE_2D, texture);
+	glTexImage2D(GL_TEXTURE_2D, 0, 4, texsurf->w, texsurf->h, 0,
+		GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+	if (quality > 0)
+	{
+		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+			mipmaps ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR);
+		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+			mipmaps ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR);
+	}
+	else
+	{
+		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+			mipmaps ? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST);
+		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+			mipmaps ? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST);
+	}
+
+	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode);
+
+	if (mipmaps)
+		gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA,
+			texsurf->w, texsurf->h, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+	SDL_FreeSurface(texsurf);
+	delete[] pixels;
+	return texture;
+}

TextureCache/TextureCache.h

@@ -0,0 +1,20 @@
+
+#include <GL/gl.h>
+#include <map>
+#include <string>
+
+class TextureCache
+{
+public:
+	GLuint load(const std::string & filename);
+
+private:
+	/* methods */
+	GLuint loadTexture(const char * filename,
+	                   bool mipmaps = false,
+	                   int mode = GL_DECAL,
+	                   int quality = 1);
+
+	/* data */
+	std::map< std::string, GLuint > m_cache;
+};

TextureLoader

@@ -0,0 +1 @@
+Subproject commit 9855d3e577208d7c1ebc73f31489c7da9d6f7d07

f_shader.glsl

@@ -1,33 +0,0 @@
-
-uniform vec4 ambient, diffuse, specular;
-uniform float shininess;
-
-varying vec3 pos_i;
-varying vec3 normal_i;
-
-void main(void)
-{
-    vec3 n, lightDir;
-    vec4 color;
-    float NdotL, RdotEye;
-
-    lightDir = normalize(vec3(-0.1, 0, -0.9));
-    color = vec4(0.2, 0.2, 0.2, 1.0) * ambient;  /* ambient light */
-    n = normalize(normal_i);
-
-    NdotL = max(dot(n, -lightDir), 0.0);
-
-    if (NdotL > 0.0)
-    {
-        /* diffuse component */
-        color += diffuse * NdotL;
-        /* specular component */
-        RdotEye = dot(normalize(-pos_i), normalize(reflect(-lightDir, n)));
-        if (RdotEye > 0.0)
-        {
-            color += clamp(specular * pow(RdotEye, shininess), 0.0, 1.0);
-        }
-    }
-
-    gl_FragColor = color;
-}

f_tex_shader.glsl

@@ -1,35 +0,0 @@
-
-uniform vec4 ambient, specular;
-uniform float shininess;
-uniform sampler2D tex;
-
-varying vec3 pos_i;
-varying vec3 normal_i;
-varying vec2 tex_coord_i;
-
-void main(void)
-{
-    vec3 n, lightDir;
-    vec4 color;
-    float NdotL, RdotEye;
-
-    lightDir = normalize(vec3(-0.1, 0, -0.9));
-    color = vec4(0.2, 0.2, 0.2, 1.0) * ambient;  /* ambient light */
-    n = normalize(normal_i);
-
-    NdotL = max(dot(n, -lightDir), 0.0);
-
-    if (NdotL > 0.0)
-    {
-        /* diffuse component */
-        color += texture2D(tex, tex_coord_i) * NdotL;
-        /* specular component */
-        RdotEye = dot(normalize(-pos_i), normalize(reflect(-lightDir, n)));
-        if (RdotEye > 0.0)
-        {
-            color += clamp(specular * pow(RdotEye, shininess), 0.0, 1.0);
-        }
-    }
-
-    gl_FragColor = color;
-}

glslUtil

@@ -1 +0,0 @@
-Subproject commit 060f3115bf0f1f659dd44ef3738c12327ec2ef43

loadTexture

@@ -1 +0,0 @@
-Subproject commit 87b5ff86910cc947fda91b271fa62b5b9276311d

v_shader.glsl

@@ -1,13 +0,0 @@
-
-attribute vec3 pos;
-attribute vec3 normal;
-
-varying vec3 pos_i;
-varying vec3 normal_i;
-
-void main(void)
-{
-    gl_Position = gl_ModelViewProjectionMatrix * vec4(pos, 1);
-    pos_i = gl_Position.xyz;
-    normal_i = gl_NormalMatrix * normal;
-}

v_tex_shader.glsl

@@ -1,16 +0,0 @@
-
-attribute vec3 pos;
-attribute vec3 normal;
-attribute vec2 tex_coord;
-
-varying vec3 pos_i;
-varying vec3 normal_i;
-varying vec2 tex_coord_i;
-
-void main(void)
-{
-    gl_Position = gl_ModelViewProjectionMatrix * vec4(pos, 1);
-    pos_i = gl_Position.xyz;
-    tex_coord_i = tex_coord;
-    normal_i = gl_NormalMatrix * normal;
-}

wfobj

@@ -1 +1 @@
-Subproject commit 1ecc6d749be3bc3f5dc0de230b5e8e3ca079377a
+Subproject commit d06888128c5a645a8815cb86bb4b3dfe1c76f454

wfobj-view.cc

@@ -1,15 +1,11 @@
 
 /* Libraries we use */
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 #include <SDL.h>
 #include <GL/gl.h>
 #include <GL/glu.h>
 #include <iostream>
 #include "wfobj/WFObj.h"
-#include "loadTexture/loadTexture.h"
-#include "glslUtil/glslUtil.h"
+#include "TextureCache/TextureCache.h"
 using namespace std;
 
 /* Some definitions */
@@ -17,316 +13,188 @@ using namespace std;
 #define HEIGHT 800
 #define TITLE "Josh's Wavefront Object Viewer"
 
-enum Locations {
-    LOC_POSITION,
-    LOC_NORMAL,
-    LOC_TEXTURE
+TextureCache textureCache;
+
+class LoadTexture : public TextureLoader
+{
+    public:
+        GLuint load(const FileLoader::Path & path,
+                FileLoader & fl, bool mipmaps, int mode, int quality)
+        {
+            return textureCache.load(path.fullPath);
+        }
 };
 
 class Viewer
 {
 public:
-    Viewer(const char * filename);
-    void run();
+	Viewer(const char * filename);
+	void run();
 
 private:
-    void initgl();
-    void display();
-    void setProjection();
+	void initgl();
+	void display();
+	void setProjection();
 
-    WFObj m_obj;
-    GLuint m_list;
-    float m_rotationMatrix[16];
-    int m_startx, m_starty;
-    bool m_dragging;
-    float m_dist;
-    GLuint m_program, m_tex_program;
-    GLint m_ambient_loc, m_diffuse_loc, m_specular_loc, m_shininess_loc;
-    GLint m_tex_ambient_loc, m_tex_specular_loc, m_tex_shininess_loc,
-          m_tex_tex_loc;
+	GLuint m_list;
+	float m_rotationMatrix[16];
+	int	m_startx, m_starty;
+	bool m_dragging;
+	float m_dist;
 };
 
-static GLuint load_texture(const char *fname)
-{
-    GLuint id = loadTexture(fname);
-    if (id != 0)
-    {
-        int width, height;
-        glBindTexture(GL_TEXTURE_2D, id);
-        glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
-        glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height);
-        char *data = (char *) malloc(4 * width * height);
-        glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
-        gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, width, height, GL_RGBA,
-                GL_UNSIGNED_BYTE, data);
-        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-                GL_LINEAR_MIPMAP_LINEAR);
-        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        free(data);
-    }
-    return id;
-}
-
 /* The program's main entry point */
-int main(int argc, char * argv[])
+int	main(int argc, char * argv[])
 {
-    if (argc < 2)
-    {
-        cerr << "Usage: " << argv[0] << " <filename>" << endl;
-        return -1;
-    }
+	if (argc < 2)
+	{
+		cerr << "Usage: " << argv[0] << " <filename>" << endl;
+		return -1;
+	}
 
-    if (SDL_Init(SDL_INIT_VIDEO))
-    {
-        printf("Failed to initialize SDL!\n");
-        return -2;
-    }
+	if (SDL_Init(SDL_INIT_VIDEO))
+	{
+		printf("Failed to initialize SDL!\n");
+		return -2;
+	}
 
-    atexit(SDL_Quit);
+	atexit(SDL_Quit);
 
-    SDL_Surface * screen;
-    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
-    if (!(screen = SDL_SetVideoMode(WIDTH, HEIGHT, 32, SDL_OPENGL)))
-    {
-        printf("Failed to set video mode!\n");
-        SDL_Quit();
-        return -3;
-    }
-    SDL_WM_SetCaption(TITLE, TITLE);
+	SDL_Surface * screen;
+	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+	if (!(screen = SDL_SetVideoMode(WIDTH, HEIGHT, 32, SDL_OPENGL)))
+	{
+		printf("Failed to set video mode!\n");
+		SDL_Quit();
+		return -3;
+	}
+	SDL_WM_SetCaption(TITLE, TITLE);
 
-    Viewer v(argv[1]);
-    v.run();
+	Viewer v(argv[1]);
+	v.run();
 
-    return 0;
+	return 0;
 }
 
 Viewer::Viewer(const char * filename)
 {
-    m_dist = 5.0;
-    m_dragging = false;
-    if (!m_obj.load(filename, NULL, load_texture))
-    {
-        cerr << "Error loading " << filename << endl;
-        exit(1);
-    }
-
-    const static guAttribBinding bindings[] = {
-        {LOC_POSITION, "pos"},
-        {LOC_NORMAL, "normal"},
-        {0, NULL}
-    };
-    m_program = guMakeProgramFromFiles("v_shader.glsl", "f_shader.glsl",
-            bindings);
-
-    const static guAttribBinding tex_bindings[] = {
-        {LOC_POSITION, "pos"},
-        {LOC_NORMAL, "normal"},
-        {LOC_TEXTURE, "tex_coord"},
-        {0, NULL}
-    };
-    m_tex_program = guMakeProgramFromFiles("v_tex_shader.glsl",
-            "f_tex_shader.glsl", tex_bindings);
-    if (m_program == 0 || m_tex_program == 0)
-    {
-        exit(1);
-    }
-
-    guUniformLocation uniforms[] = {
-        {&m_ambient_loc, "ambient"},
-        {&m_diffuse_loc, "diffuse"},
-        {&m_specular_loc, "specular"},
-        {&m_shininess_loc, "shininess"},
-        {NULL, NULL}
-    };
-    guGetUniformLocations(m_program, uniforms);
-
-    guUniformLocation tex_uniforms[] = {
-        {&m_tex_ambient_loc, "ambient"},
-        {&m_tex_specular_loc, "specular"},
-        {&m_tex_shininess_loc, "shininess"},
-        {&m_tex_tex_loc, "tex"},
-        {NULL, NULL}
-    };
-    guGetUniformLocations(m_tex_program, tex_uniforms);
-
-    glUseProgram(m_program);
-    glUniform4f(m_ambient_loc, 0.2, 0.2, 0.2, 1.0);
-    glUniform4f(m_diffuse_loc, 1.0, 1.0, 1.0, 1.0);
-    glUniform4f(m_specular_loc, 1.0, 1.0, 1.0, 1.0);
-    glUniform1f(m_shininess_loc, 85.0);
-
-    glUseProgram(m_tex_program);
-    glUniform4f(m_tex_ambient_loc, 0.2, 0.2, 0.2, 1.0);
-    glUniform4f(m_tex_specular_loc, 1.0, 1.0, 1.0, 1.0);
-    glUniform1f(m_tex_shininess_loc, 85.0);
-
-    /* Print out the object's size */
-    const float * aabb = m_obj.getAABB();
-    cout << "Object width:  " << (aabb[3]-aabb[0]) << endl;
-    cout << "Object depth:  " << (aabb[4]-aabb[1]) << endl;
-    cout << "Object height: " << (aabb[5]-aabb[2]) << endl;
+	m_dist = 5.0;
+	m_dragging = false;
+	LoadTexture lt;
+	WFObj m_obj(lt);
+	m_obj.load(FileLoader::Path(filename, ""));
+	m_list = m_obj.render();
+	
+	/* Print out the object's size */
+	const float * aabb = m_obj.getAABB();
+	cout << "Object width:  " << (aabb[3]-aabb[0]) << endl;
+	cout << "Object depth:  " << (aabb[4]-aabb[1]) << endl;
+	cout << "Object height: " << (aabb[5]-aabb[2]) << endl;
 }
 
 void Viewer::initgl()
 {
-    glClearColor(0.0, 0.0, 0.0, 0.0);
-    glEnable(GL_DEPTH_TEST);
-    glViewport(0, 0, WIDTH, HEIGHT);
-    setProjection();
-    glLoadIdentity();
-    glGetFloatv(GL_MODELVIEW_MATRIX, m_rotationMatrix);
+	glClearColor(0.0, 0.0, 0.0, 0.0);
+	glEnable(GL_DEPTH_TEST);
+	glShadeModel(GL_SMOOTH);
+	glEnable(GL_LIGHTING);
+	glEnable(GL_LIGHT0);
+	glEnable(GL_CULL_FACE);
+	glViewport(0, 0, WIDTH, HEIGHT);
+	setProjection();
+	glLoadIdentity();
+	glGetFloatv(GL_MODELVIEW_MATRIX, m_rotationMatrix);
+//	float pos[] = {0.0, -1.0, 0.0, 0.0};
+//	glLightfv(GL_LIGHT0, GL_POSITION, pos);
+	GLfloat lightAmbient[] = {0.2, 0.2, 0.2, 1};
+	glLightfv(GL_LIGHT0, GL_AMBIENT, lightAmbient);
+	GLfloat ambient[] = {0.0, 0.0, 0.0, 1.0};
+	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
 }
 
 void Viewer::setProjection()
 {
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    gluPerspective(60.0, (GLfloat)WIDTH/(GLfloat)WIDTH, 0.01, 10000.0);
-//  gluLookAt(0, m_dist, 0, 0, 0, 0, 0, 0, 1);
-    glMatrixMode(GL_MODELVIEW);
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	gluPerspective(60.0, (GLfloat)WIDTH/(GLfloat)WIDTH, 0.01, 10000.0);
+//	gluLookAt(0, m_dist, 0, 0, 0, 0, 0, 0, 1);
+	glMatrixMode(GL_MODELVIEW);
 }
 
 void Viewer::display()
 {
-    glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
-    glLoadIdentity();
-    gluLookAt(0, -m_dist, 0, 0, 0, 0, 0, 0, 1);
-    glMultMatrixf(m_rotationMatrix);
-
-    m_obj.bindBuffers();
-    GLuint program = m_program;
-    glUseProgram(m_program);
-    glEnableVertexAttribArray(LOC_POSITION);
-    glEnableVertexAttribArray(LOC_NORMAL);
-    int stride = m_obj.getStride();
-    glVertexAttribPointer(LOC_POSITION, 3, GL_FLOAT, GL_FALSE,
-            stride, (GLvoid *) m_obj.getVertexOffset());
-    glVertexAttribPointer(LOC_NORMAL, 3, GL_FLOAT, GL_FALSE,
-            stride, (GLvoid *) m_obj.getNormalOffset());
-    if (m_obj.doTextures())
-    {
-        glVertexAttribPointer(LOC_TEXTURE, 2, GL_FLOAT, GL_FALSE,
-                stride, (GLvoid *) m_obj.getTextureCoordOffset());
-    }
-    for (map<string, WFObj::Material>::iterator it =
-            m_obj.getMaterials().begin();
-            it != m_obj.getMaterials().end();
-            it++)
-    {
-        WFObj::Material & m = it->second;
-        if (m.flags & WFObj::Material::TEXTURE_BIT)
-        {
-            if (program != m_tex_program)
-            {
-                glUseProgram(m_tex_program);
-                program = m_tex_program;
-                glEnableVertexAttribArray(LOC_TEXTURE);
-            }
-        }
-        else
-        {
-            if (program != m_program)
-            {
-                glUseProgram(m_program);
-                program = m_program;
-                glDisableVertexAttribArray(LOC_TEXTURE);
-            }
-        }
-        if (m.flags & WFObj::Material::SHININESS_BIT)
-        {
-            if (program == m_tex_program)
-                glUniform1f(m_tex_shininess_loc, m.shininess);
-            else
-                glUniform1f(m_shininess_loc, m.shininess);
-        }
-        if (m.flags & WFObj::Material::AMBIENT_BIT)
-        {
-            if (program == m_tex_program)
-                glUniform4fv(m_tex_ambient_loc, 1, &m.ambient[0]);
-            else
-                glUniform4fv(m_ambient_loc, 1, &m.ambient[0]);
-        }
-        if (m.flags & WFObj::Material::DIFFUSE_BIT)
-        {
-            if (program != m_tex_program)
-                glUniform4fv(m_diffuse_loc, 1, &m.diffuse[0]);
-        }
-        if (m.flags & WFObj::Material::SPECULAR_BIT)
-        {
-            if (program == m_tex_program)
-                glUniform4fv(m_tex_specular_loc, 1, &m.specular[0]);
-            else
-                glUniform4fv(m_specular_loc, 1, &m.specular[0]);
-        }
-        glDrawElements(GL_TRIANGLES, m.num_vertices,
-                GL_UNSIGNED_SHORT,
-                (GLvoid *) (sizeof(GLushort) * m.first_vertex));
-    }
-    SDL_GL_SwapBuffers();
+	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+	glLoadIdentity();
+	gluLookAt(0, -m_dist, 0, 0, 0, 0, 0, 0, 1);
+	glMultMatrixf(m_rotationMatrix);
+	if (m_list)
+		glCallList(m_list);
+	SDL_GL_SwapBuffers();
 }
 
 void Viewer::run()
 {
-    initgl();
-    display();
-    SDL_Event event;
-    while (SDL_WaitEvent(&event))
-    {
-        if (event.type == SDL_QUIT)
-            break;
-        else if (event.type == SDL_KEYDOWN)
-        {
-            if (event.key.keysym.sym == SDLK_ESCAPE)
-                break;
-            if (event.key.keysym.sym == SDLK_q)
-                break;
-        }
-        else if (event.type == SDL_MOUSEBUTTONDOWN)
-        {
-            if (event.button.button == SDL_BUTTON_LEFT)
-            {
-                if (event.button.state == SDL_PRESSED)
-                {
-                    m_dragging = true;
-                    m_startx = event.button.x;
-                    m_starty = event.button.y;
-                }
-            }
-            else if (event.button.button == 4)
-            {
-                m_dist *= 0.85;
-                if (m_dist < 1.0f)
-                    m_dist = 1.0f;
-                setProjection();
-                display();
-            }
-            else if (event.button.button == 5)
-            {
-                m_dist *= 1.2;
-                setProjection();
-                display();
-            }
-        }
-        else if (event.type == SDL_MOUSEBUTTONUP)
-        {
-            if (event.button.button == SDL_BUTTON_LEFT)
-            {
-                m_dragging = false;
-            }
-        }
-        else if (event.type == SDL_MOUSEMOTION)
-        {
-            if (m_dragging)
-            {
-                glLoadIdentity();
-                glRotatef(event.motion.y - m_starty, 1, 0, 0);
-                glRotatef(event.motion.x - m_startx, 0, 0, 1);
-                glMultMatrixf(m_rotationMatrix);
-                glGetFloatv(GL_MODELVIEW_MATRIX, m_rotationMatrix);
-                m_startx = event.motion.x;
-                m_starty = event.motion.y;
-                display();
-            }
-        }
-    }
+	initgl();
+	display();
+	SDL_Event event;
+	while (SDL_WaitEvent(&event))
+	{
+		if (event.type == SDL_QUIT)
+			break;
+		else if (event.type == SDL_KEYDOWN)
+		{
+			if (event.key.keysym.sym == SDLK_ESCAPE)
+				break;
+			if (event.key.keysym.sym == SDLK_q)
+				break;
+		}
+		else if (event.type == SDL_MOUSEBUTTONDOWN)
+		{
+			if (event.button.button == SDL_BUTTON_LEFT)
+			{
+				if (event.button.state == SDL_PRESSED)
+				{
+					m_dragging = true;
+					m_startx = event.button.x;
+					m_starty = event.button.y;
+				}
+			}
+			else if (event.button.button == 4)
+			{
+				m_dist *= 0.85;
+				if (m_dist < 1.0f)
+					m_dist = 1.0f;
+				setProjection();
+				display();
+			}
+			else if (event.button.button == 5)
+			{
+				m_dist *= 1.2;
+				setProjection();
+				display();
+			}
+		}
+		else if (event.type == SDL_MOUSEBUTTONUP)
+		{
+			if (event.button.button == SDL_BUTTON_LEFT)
+			{
+				m_dragging = false;
+			}
+		}
+		else if (event.type == SDL_MOUSEMOTION)
+		{
+			if (m_dragging)
+			{
+				glLoadIdentity();
+				glRotatef(event.motion.y - m_starty, 1, 0, 0);
+				glRotatef(event.motion.x - m_startx, 0, 0, 1);
+				glMultMatrixf(m_rotationMatrix);
+				glGetFloatv(GL_MODELVIEW_MATRIX, m_rotationMatrix);
+				m_startx = event.motion.x;
+				m_starty = event.motion.y;
+				display();
+			}
+		}
+	}
+
 }