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Diffstat (limited to 'examples/viewer/viewer.cc')
| -rw-r--r-- | examples/viewer/viewer.cc | 713 |
1 files changed, 713 insertions, 0 deletions
diff --git a/examples/viewer/viewer.cc b/examples/viewer/viewer.cc new file mode 100644 index 0000000..4747232 --- /dev/null +++ b/examples/viewer/viewer.cc @@ -0,0 +1,713 @@ +// +// Simple .obj viewer(vertex only) +// +#include <algorithm> +#include <cassert> +#include <cmath> +#include <cstdio> +#include <cstdlib> +#include <iostream> +#include <limits> +#include <map> +#include <string> +#include <vector> + +#include <GL/glew.h> + +#ifdef __APPLE__ +#include <OpenGL/glu.h> +#else +#include <GL/glu.h> +#endif + +#include <GLFW/glfw3.h> + +#define TINYOBJLOADER_IMPLEMENTATION +#include "../../tiny_obj_loader.h" + +#include "trackball.h" + +#define STB_IMAGE_IMPLEMENTATION +#include "stb_image.h" + +#ifdef _WIN32 +#ifdef __cplusplus +extern "C" { +#endif +#include <windows.h> + +#ifdef max + #undef max +#endif + +#ifdef min + #undef min +#endif + +#include <mmsystem.h> +#ifdef __cplusplus +} +#endif +#pragma comment(lib, "winmm.lib") +#else +#if defined(__unix__) || defined(__APPLE__) +#include <sys/time.h> +#else +#include <ctime> +#endif +#endif + +class timerutil { + public: +#ifdef _WIN32 + typedef DWORD time_t; + + timerutil() { ::timeBeginPeriod(1); } + ~timerutil() { ::timeEndPeriod(1); } + + void start() { t_[0] = ::timeGetTime(); } + void end() { t_[1] = ::timeGetTime(); } + + time_t sec() { return (time_t)((t_[1] - t_[0]) / 1000); } + time_t msec() { return (time_t)((t_[1] - t_[0])); } + time_t usec() { return (time_t)((t_[1] - t_[0]) * 1000); } + time_t current() { return ::timeGetTime(); } + +#else +#if defined(__unix__) || defined(__APPLE__) + typedef unsigned long int time_t; + + void start() { gettimeofday(tv + 0, &tz); } + void end() { gettimeofday(tv + 1, &tz); } + + time_t sec() { return (time_t)(tv[1].tv_sec - tv[0].tv_sec); } + time_t msec() { + return this->sec() * 1000 + + (time_t)((tv[1].tv_usec - tv[0].tv_usec) / 1000); + } + time_t usec() { + return this->sec() * 1000000 + (time_t)(tv[1].tv_usec - tv[0].tv_usec); + } + time_t current() { + struct timeval t; + gettimeofday(&t, NULL); + return (time_t)(t.tv_sec * 1000 + t.tv_usec); + } + +#else // C timer + // using namespace std; + typedef clock_t time_t; + + void start() { t_[0] = clock(); } + void end() { t_[1] = clock(); } + + time_t sec() { return (time_t)((t_[1] - t_[0]) / CLOCKS_PER_SEC); } + time_t msec() { return (time_t)((t_[1] - t_[0]) * 1000 / CLOCKS_PER_SEC); } + time_t usec() { return (time_t)((t_[1] - t_[0]) * 1000000 / CLOCKS_PER_SEC); } + time_t current() { return (time_t)clock(); } + +#endif +#endif + + private: +#ifdef _WIN32 + DWORD t_[2]; +#else +#if defined(__unix__) || defined(__APPLE__) + struct timeval tv[2]; + struct timezone tz; +#else + time_t t_[2]; +#endif +#endif +}; + +typedef struct { + GLuint vb_id; // vertex buffer id + int numTriangles; + size_t material_id; +} DrawObject; + +std::vector<DrawObject> gDrawObjects; + +int width = 768; +int height = 768; + +double prevMouseX, prevMouseY; +bool mouseLeftPressed; +bool mouseMiddlePressed; +bool mouseRightPressed; +float curr_quat[4]; +float prev_quat[4]; +float eye[3], lookat[3], up[3]; + +GLFWwindow* window; + +static std::string GetBaseDir(const std::string &filepath) { + if (filepath.find_last_of("/\\") != std::string::npos) + return filepath.substr(0, filepath.find_last_of("/\\")); + return ""; +} + +static bool FileExists(const std::string &abs_filename) { + bool ret; + FILE *fp = fopen(abs_filename.c_str(), "rb"); + if (fp) { + ret = true; + fclose(fp); + } else { + ret = false; + } + + return ret; +} + +static void CheckErrors(std::string desc) { + GLenum e = glGetError(); + if (e != GL_NO_ERROR) { + fprintf(stderr, "OpenGL error in \"%s\": %d (%d)\n", desc.c_str(), e, e); + exit(20); + } +} + +static void CalcNormal(float N[3], float v0[3], float v1[3], float v2[3]) { + float v10[3]; + v10[0] = v1[0] - v0[0]; + v10[1] = v1[1] - v0[1]; + v10[2] = v1[2] - v0[2]; + + float v20[3]; + v20[0] = v2[0] - v0[0]; + v20[1] = v2[1] - v0[1]; + v20[2] = v2[2] - v0[2]; + + N[0] = v20[1] * v10[2] - v20[2] * v10[1]; + N[1] = v20[2] * v10[0] - v20[0] * v10[2]; + N[2] = v20[0] * v10[1] - v20[1] * v10[0]; + + float len2 = N[0] * N[0] + N[1] * N[1] + N[2] * N[2]; + if (len2 > 0.0f) { + float len = sqrtf(len2); + + N[0] /= len; + N[1] /= len; + } +} + +static bool LoadObjAndConvert(float bmin[3], float bmax[3], + std::vector<DrawObject>* drawObjects, + std::vector<tinyobj::material_t>& materials, + std::map<std::string, GLuint>& textures, + const char* filename) { + tinyobj::attrib_t attrib; + std::vector<tinyobj::shape_t> shapes; + + timerutil tm; + + tm.start(); + + std::string base_dir = GetBaseDir(filename); + if (base_dir.empty()) { + base_dir = "."; + } +#ifdef _WIN32 + base_dir += "\\"; +#else + base_dir += "/"; +#endif + + std::string err; + bool ret = + tinyobj::LoadObj(&attrib, &shapes, &materials, &err, filename, base_dir.c_str()); + if (!err.empty()) { + std::cerr << err << std::endl; + } + + tm.end(); + + if (!ret) { + std::cerr << "Failed to load " << filename << std::endl; + return false; + } + + printf("Parsing time: %d [ms]\n", (int)tm.msec()); + + printf("# of vertices = %d\n", (int)(attrib.vertices.size()) / 3); + printf("# of normals = %d\n", (int)(attrib.normals.size()) / 3); + printf("# of texcoords = %d\n", (int)(attrib.texcoords.size()) / 2); + printf("# of materials = %d\n", (int)materials.size()); + printf("# of shapes = %d\n", (int)shapes.size()); + + // Append `default` material + materials.push_back(tinyobj::material_t()); + + for (size_t i = 0; i < materials.size(); i++) { + printf("material[%d].diffuse_texname = %s\n", int(i), materials[i].diffuse_texname.c_str()); + } + + // Load diffuse textures + { + for (size_t m = 0; m < materials.size(); m++) { + tinyobj::material_t* mp = &materials[m]; + + if (mp->diffuse_texname.length() > 0) { + // Only load the texture if it is not already loaded + if (textures.find(mp->diffuse_texname) == textures.end()) { + GLuint texture_id; + int w, h; + int comp; + + std::string texture_filename = mp->diffuse_texname; + if (!FileExists(texture_filename)) { + // Append base dir. + texture_filename = base_dir + mp->diffuse_texname; + if (!FileExists(texture_filename)) { + std::cerr << "Unable to find file: " << mp->diffuse_texname << std::endl; + exit(1); + } + } + + unsigned char* image = stbi_load(texture_filename.c_str(), &w, &h, &comp, STBI_default); + if (!image) { + std::cerr << "Unable to load texture: " << texture_filename << std::endl; + exit(1); + } + std::cout << "Loaded texture: " << texture_filename << ", w = " << w << ", h = " << h << ", comp = " << comp << std::endl; + + glGenTextures(1, &texture_id); + glBindTexture(GL_TEXTURE_2D, texture_id); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + if (comp == 3) { + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, image); + } + else if (comp == 4) { + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image); + } else { + assert(0); // TODO + } + glBindTexture(GL_TEXTURE_2D, 0); + stbi_image_free(image); + textures.insert(std::make_pair(mp->diffuse_texname, texture_id)); + } + } + } + } + + bmin[0] = bmin[1] = bmin[2] = std::numeric_limits<float>::max(); + bmax[0] = bmax[1] = bmax[2] = -std::numeric_limits<float>::max(); + + { + for (size_t s = 0; s < shapes.size(); s++) { + DrawObject o; + std::vector<float> buffer; // pos(3float), normal(3float), color(3float) + for (size_t f = 0; f < shapes[s].mesh.indices.size() / 3; f++) { + tinyobj::index_t idx0 = shapes[s].mesh.indices[3 * f + 0]; + tinyobj::index_t idx1 = shapes[s].mesh.indices[3 * f + 1]; + tinyobj::index_t idx2 = shapes[s].mesh.indices[3 * f + 2]; + + int current_material_id = shapes[s].mesh.material_ids[f]; + + if ((current_material_id < 0) || (current_material_id >= static_cast<int>(materials.size()))) { + // Invaid material ID. Use default material. + current_material_id = materials.size() - 1; // Default material is added to the last item in `materials`. + } + //if (current_material_id >= materials.size()) { + // std::cerr << "Invalid material index: " << current_material_id << std::endl; + //} + // + float diffuse[3]; + for (size_t i = 0; i < 3; i++) { + diffuse[i] = materials[current_material_id].diffuse[i]; + } + float tc[3][2]; + if (attrib.texcoords.size() > 0) { + assert(attrib.texcoords.size() > 2 * idx0.texcoord_index + 1); + assert(attrib.texcoords.size() > 2 * idx1.texcoord_index + 1); + assert(attrib.texcoords.size() > 2 * idx2.texcoord_index + 1); + + // Flip Y coord. + tc[0][0] = attrib.texcoords[2 * idx0.texcoord_index]; + tc[0][1] = 1.0f - attrib.texcoords[2 * idx0.texcoord_index + 1]; + tc[1][0] = attrib.texcoords[2 * idx1.texcoord_index]; + tc[1][1] = 1.0f - attrib.texcoords[2 * idx1.texcoord_index + 1]; + tc[2][0] = attrib.texcoords[2 * idx2.texcoord_index]; + tc[2][1] = 1.0f - attrib.texcoords[2 * idx2.texcoord_index + 1]; + } else { + tc[0][0] = 0.0f; + tc[0][1] = 0.0f; + tc[1][0] = 0.0f; + tc[1][1] = 0.0f; + tc[2][0] = 0.0f; + tc[2][1] = 0.0f; + } + + float v[3][3]; + for (int k = 0; k < 3; k++) { + int f0 = idx0.vertex_index; + int f1 = idx1.vertex_index; + int f2 = idx2.vertex_index; + assert(f0 >= 0); + assert(f1 >= 0); + assert(f2 >= 0); + + v[0][k] = attrib.vertices[3 * f0 + k]; + v[1][k] = attrib.vertices[3 * f1 + k]; + v[2][k] = attrib.vertices[3 * f2 + k]; + bmin[k] = std::min(v[0][k], bmin[k]); + bmin[k] = std::min(v[1][k], bmin[k]); + bmin[k] = std::min(v[2][k], bmin[k]); + bmax[k] = std::max(v[0][k], bmax[k]); + bmax[k] = std::max(v[1][k], bmax[k]); + bmax[k] = std::max(v[2][k], bmax[k]); + } + + float n[3][3]; + if (attrib.normals.size() > 0) { + int f0 = idx0.normal_index; + int f1 = idx1.normal_index; + int f2 = idx2.normal_index; + assert(f0 >= 0); + assert(f1 >= 0); + assert(f2 >= 0); + for (int k = 0; k < 3; k++) { + n[0][k] = attrib.normals[3 * f0 + k]; + n[1][k] = attrib.normals[3 * f1 + k]; + n[2][k] = attrib.normals[3 * f2 + k]; + } + } else { + // compute geometric normal + CalcNormal(n[0], v[0], v[1], v[2]); + n[1][0] = n[0][0]; + n[1][1] = n[0][1]; + n[1][2] = n[0][2]; + n[2][0] = n[0][0]; + n[2][1] = n[0][1]; + n[2][2] = n[0][2]; + } + + for (int k = 0; k < 3; k++) { + buffer.push_back(v[k][0]); + buffer.push_back(v[k][1]); + buffer.push_back(v[k][2]); + buffer.push_back(n[k][0]); + buffer.push_back(n[k][1]); + buffer.push_back(n[k][2]); + // Combine normal and diffuse to get color. + float normal_factor = 0.2; + float diffuse_factor = 1 - normal_factor; + float c[3] = { + n[k][0] * normal_factor + diffuse[0] * diffuse_factor, + n[k][1] * normal_factor + diffuse[1] * diffuse_factor, + n[k][2] * normal_factor + diffuse[2] * diffuse_factor + }; + float len2 = c[0] * c[0] + c[1] * c[1] + c[2] * c[2]; + if (len2 > 0.0f) { + float len = sqrtf(len2); + + c[0] /= len; + c[1] /= len; + c[2] /= len; + } + buffer.push_back(c[0] * 0.5 + 0.5); + buffer.push_back(c[1] * 0.5 + 0.5); + buffer.push_back(c[2] * 0.5 + 0.5); + + buffer.push_back(tc[k][0]); + buffer.push_back(tc[k][1]); + } + } + + o.vb_id = 0; + o.numTriangles = 0; + + // OpenGL viewer does not support texturing with per-face material. + if (shapes[s].mesh.material_ids.size() > 0 && shapes[s].mesh.material_ids.size() > s) { + o.material_id = shapes[s].mesh.material_ids[0]; // use the material ID of the first face. + } else { + o.material_id = materials.size() - 1; // = ID for default material. + } + printf("shape[%d] material_id %d\n", int(s), int(o.material_id)); + + if (buffer.size() > 0) { + glGenBuffers(1, &o.vb_id); + glBindBuffer(GL_ARRAY_BUFFER, o.vb_id); + glBufferData(GL_ARRAY_BUFFER, buffer.size() * sizeof(float), &buffer.at(0), + GL_STATIC_DRAW); + o.numTriangles = buffer.size() / (3 + 3 + 3 + 2) / 3; // 3:vtx, 3:normal, 3:col, 2:texcoord + + printf("shape[%d] # of triangles = %d\n", static_cast<int>(s), + o.numTriangles); + } + + drawObjects->push_back(o); + } + } + + printf("bmin = %f, %f, %f\n", bmin[0], bmin[1], bmin[2]); + printf("bmax = %f, %f, %f\n", bmax[0], bmax[1], bmax[2]); + + return true; +} + +static void reshapeFunc(GLFWwindow* window, int w, int h) { + int fb_w, fb_h; + // Get actual framebuffer size. + glfwGetFramebufferSize(window, &fb_w, &fb_h); + + glViewport(0, 0, fb_w, fb_h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(45.0, (float)w / (float)h, 0.01f, 100.0f); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + width = w; + height = h; +} + +static void keyboardFunc(GLFWwindow* window, int key, int scancode, int action, + int mods) { + (void)window; + (void)scancode; + (void)mods; + if (action == GLFW_PRESS || action == GLFW_REPEAT) { + // Move camera + float mv_x = 0, mv_y = 0, mv_z = 0; + if (key == GLFW_KEY_K) + mv_x += 1; + else if (key == GLFW_KEY_J) + mv_x += -1; + else if (key == GLFW_KEY_L) + mv_y += 1; + else if (key == GLFW_KEY_H) + mv_y += -1; + else if (key == GLFW_KEY_P) + mv_z += 1; + else if (key == GLFW_KEY_N) + mv_z += -1; + // camera.move(mv_x * 0.05, mv_y * 0.05, mv_z * 0.05); + // Close window + if (key == GLFW_KEY_Q || key == GLFW_KEY_ESCAPE) + glfwSetWindowShouldClose(window, GL_TRUE); + + // init_frame = true; + } +} + +static void clickFunc(GLFWwindow* window, int button, int action, int mods) { + (void)window; + (void)mods; + if (button == GLFW_MOUSE_BUTTON_LEFT) { + if (action == GLFW_PRESS) { + mouseLeftPressed = true; + trackball(prev_quat, 0.0, 0.0, 0.0, 0.0); + } else if (action == GLFW_RELEASE) { + mouseLeftPressed = false; + } + } + if (button == GLFW_MOUSE_BUTTON_RIGHT) { + if (action == GLFW_PRESS) { + mouseRightPressed = true; + } else if (action == GLFW_RELEASE) { + mouseRightPressed = false; + } + } + if (button == GLFW_MOUSE_BUTTON_MIDDLE) { + if (action == GLFW_PRESS) { + mouseMiddlePressed = true; + } else if (action == GLFW_RELEASE) { + mouseMiddlePressed = false; + } + } +} + +static void motionFunc(GLFWwindow* window, double mouse_x, double mouse_y) { + (void)window; + float rotScale = 1.0f; + float transScale = 2.0f; + + if (mouseLeftPressed) { + trackball(prev_quat, rotScale * (2.0f * prevMouseX - width) / (float)width, + rotScale * (height - 2.0f * prevMouseY) / (float)height, + rotScale * (2.0f * mouse_x - width) / (float)width, + rotScale * (height - 2.0f * mouse_y) / (float)height); + + add_quats(prev_quat, curr_quat, curr_quat); + } else if (mouseMiddlePressed) { + eye[0] -= transScale * (mouse_x - prevMouseX) / (float)width; + lookat[0] -= transScale * (mouse_x - prevMouseX) / (float)width; + eye[1] += transScale * (mouse_y - prevMouseY) / (float)height; + lookat[1] += transScale * (mouse_y - prevMouseY) / (float)height; + } else if (mouseRightPressed) { + eye[2] += transScale * (mouse_y - prevMouseY) / (float)height; + lookat[2] += transScale * (mouse_y - prevMouseY) / (float)height; + } + + // Update mouse point + prevMouseX = mouse_x; + prevMouseY = mouse_y; +} + +static void Draw(const std::vector<DrawObject>& drawObjects, std::vector<tinyobj::material_t>& materials, std::map<std::string, GLuint>& textures) { + glPolygonMode(GL_FRONT, GL_FILL); + glPolygonMode(GL_BACK, GL_FILL); + + glEnable(GL_POLYGON_OFFSET_FILL); + glPolygonOffset(1.0, 1.0); + GLsizei stride = (3 + 3 + 3 + 2) * sizeof(float); + for (size_t i = 0; i < drawObjects.size(); i++) { + DrawObject o = drawObjects[i]; + if (o.vb_id < 1) { + continue; + } + + glBindBuffer(GL_ARRAY_BUFFER, o.vb_id); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + glEnableClientState(GL_COLOR_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + + glBindTexture(GL_TEXTURE_2D, 0); + if ((o.material_id < materials.size())) { + std::string diffuse_texname = materials[o.material_id].diffuse_texname; + if (textures.find(diffuse_texname) != textures.end()) { + glBindTexture(GL_TEXTURE_2D, textures[diffuse_texname]); + } + } + glVertexPointer(3, GL_FLOAT, stride, (const void*)0); + glNormalPointer(GL_FLOAT, stride, (const void*)(sizeof(float) * 3)); + glColorPointer(3, GL_FLOAT, stride, (const void*)(sizeof(float) * 6)); + glTexCoordPointer(2, GL_FLOAT, stride, (const void*)(sizeof(float) * 9)); + + glDrawArrays(GL_TRIANGLES, 0, 3 * o.numTriangles); + CheckErrors("drawarrays"); + glBindTexture(GL_TEXTURE_2D, 0); + } + + // draw wireframe + glDisable(GL_POLYGON_OFFSET_FILL); + glPolygonMode(GL_FRONT, GL_LINE); + glPolygonMode(GL_BACK, GL_LINE); + + glColor3f(0.0f, 0.0f, 0.4f); + for (size_t i = 0; i < drawObjects.size(); i++) { + DrawObject o = drawObjects[i]; + if (o.vb_id < 1) { + continue; + } + + glBindBuffer(GL_ARRAY_BUFFER, o.vb_id); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + glDisableClientState(GL_COLOR_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); + glVertexPointer(3, GL_FLOAT, stride, (const void*)0); + glNormalPointer(GL_FLOAT, stride, (const void*)(sizeof(float) * 3)); + glColorPointer(3, GL_FLOAT, stride, (const void*)(sizeof(float) * 6)); + glTexCoordPointer(2, GL_FLOAT, stride, (const void*)(sizeof(float) * 9)); + + glDrawArrays(GL_TRIANGLES, 0, 3 * o.numTriangles); + CheckErrors("drawarrays"); + } +} + +static void Init() { + trackball(curr_quat, 0, 0, 0, 0); + + eye[0] = 0.0f; + eye[1] = 0.0f; + eye[2] = 3.0f; + + lookat[0] = 0.0f; + lookat[1] = 0.0f; + lookat[2] = 0.0f; + + up[0] = 0.0f; + up[1] = 1.0f; + up[2] = 0.0f; +} + +int main(int argc, char** argv) { + if (argc < 2) { + std::cout << "Needs input.obj\n" << std::endl; + return 0; + } + + Init(); + + if (!glfwInit()) { + std::cerr << "Failed to initialize GLFW." << std::endl; + return -1; + } + + window = glfwCreateWindow(width, height, "Obj viewer", NULL, NULL); + if (window == NULL) { + std::cerr << "Failed to open GLFW window. " << std::endl; + glfwTerminate(); + return 1; + } + + glfwMakeContextCurrent(window); + glfwSwapInterval(1); + + // Callback + glfwSetWindowSizeCallback(window, reshapeFunc); + glfwSetKeyCallback(window, keyboardFunc); + glfwSetMouseButtonCallback(window, clickFunc); + glfwSetCursorPosCallback(window, motionFunc); + + glewExperimental = true; + if (glewInit() != GLEW_OK) { + std::cerr << "Failed to initialize GLEW." << std::endl; + return -1; + } + + reshapeFunc(window, width, height); + + float bmin[3], bmax[3]; + std::vector<tinyobj::material_t> materials; + std::map<std::string, GLuint> textures; + if (false == LoadObjAndConvert(bmin, bmax, &gDrawObjects, materials, textures, argv[1])) { + return -1; + } + + float maxExtent = 0.5f * (bmax[0] - bmin[0]); + if (maxExtent < 0.5f * (bmax[1] - bmin[1])) { + maxExtent = 0.5f * (bmax[1] - bmin[1]); + } + if (maxExtent < 0.5f * (bmax[2] - bmin[2])) { + maxExtent = 0.5f * (bmax[2] - bmin[2]); + } + + while (glfwWindowShouldClose(window) == GL_FALSE) { + glfwPollEvents(); + glClearColor(0.1f, 0.2f, 0.3f, 1.0f); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glEnable(GL_DEPTH_TEST); + glEnable(GL_TEXTURE_2D); + + // camera & rotate + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + GLfloat mat[4][4]; + gluLookAt(eye[0], eye[1], eye[2], lookat[0], lookat[1], lookat[2], up[0], + up[1], up[2]); + build_rotmatrix(mat, curr_quat); + glMultMatrixf(&mat[0][0]); + + // Fit to -1, 1 + glScalef(1.0f / maxExtent, 1.0f / maxExtent, 1.0f / maxExtent); + + // Centerize object. + glTranslatef(-0.5 * (bmax[0] + bmin[0]), -0.5 * (bmax[1] + bmin[1]), + -0.5 * (bmax[2] + bmin[2])); + + Draw(gDrawObjects, materials, textures); + + glfwSwapBuffers(window); + } + + glfwTerminate(); +} |