public
/
pos
11
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fixed backface culling/blender mesh.

This commit is contained in:
Jacob Parker 2011-08-12 09:16:03 -04:00
parent df1b0216bc
commit a82f817071
2 changed files with 993 additions and 974 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1875
can.obj
View File

File diff suppressed because it is too large Load Diff

24
main.cpp
View File

@ -1,3 +1,4 @@
#ifdef __APPLE__ #ifdef __APPLE__
#define glGenVertexArrays glGenVertexArraysAPPLE #define glGenVertexArrays glGenVertexArraysAPPLE
#define glBindVertexArray glBindVertexArrayAPPLE #define glBindVertexArray glBindVertexArrayAPPLE
@ -105,6 +106,7 @@ void print_shader_error (uint32_t id, uint32_t type) {
Mesh load_mesh (std::string filename) { Mesh load_mesh (std::string filename) {
Mesh m; Mesh m;
uint32_t object_count = 0;
std::ifstream fin (filename.c_str ()); std::ifstream fin (filename.c_str ());
if (!fin.good ()) { std::cerr << "Couldn't open " << filename << "\n"; exit(1); } if (!fin.good ()) { std::cerr << "Couldn't open " << filename << "\n"; exit(1); }
@ -113,7 +115,10 @@ Mesh load_mesh (std::string filename) {
while (!fin.eof ()) { while (!fin.eof ()) {
char line[128]; char line[128];
fin.getline(line, 128); fin.getline(line, 128);
if (line[0] == 'v') { if (line[0] == 'o') {
object_count++;
if (object_count != 1) { std::cerr << "More than one object in mesh.\n"; exit(1); }
} else if (line[0] == 'v') {
Vertex v; Vertex v;
char *fstr = strtok(&(line[1]), " "); char *fstr = strtok(&(line[1]), " ");
v.pos[0] = atof(fstr); v.pos[0] = atof(fstr);
@ -174,7 +179,7 @@ uint32_t load_texture (std::string filename) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image_w, image_h, 0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid*)&(image_data.at(0))); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLint)image_w, (GLint)image_h, 0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid*)&(image_data.at(0)));
glGenerateMipmap(GL_TEXTURE_2D); glGenerateMipmap(GL_TEXTURE_2D);
glError(); glError();
std::cerr << "Loaded " << filename << " (" << image_w << "x" << image_h << ")\n"; std::cerr << "Loaded " << filename << " (" << image_w << "x" << image_h << ")\n";
@ -220,11 +225,10 @@ void GL_init (float w, float h) {
glShadeModel (GL_SMOOTH); glShadeModel (GL_SMOOTH);
glEnable (GL_DEPTH_TEST); glEnable (GL_DEPTH_TEST);
glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
// TODO: blender is apparently a dick and doesn't export to .obj with a consistent poly orientation.
// Fix it manually during a load or something to get this culling. glFrontFace (GL_CCW);
// glFrontFace (GL_CCW); glCullFace (GL_BACK);
// glCullFace (GL_BACK); glEnable (GL_CULL_FACE);
// glEnable (GL_CULL_FACE);
glClearColor (0,0,0,0); glClearColor (0,0,0,0);
glEnable (GL_TEXTURE_2D); glEnable (GL_TEXTURE_2D);
@ -249,8 +253,9 @@ void GL_init (float w, float h) {
} }
int main () { int main () {
float w = 480; float scale = 3;
float h = 272; float w = 480*scale;
float h = 272*scale;
if (!glfwInit () || !glfwOpenWindow (w, h, 8,8,8,0,32,0,GLFW_WINDOW)) { if (!glfwInit () || !glfwOpenWindow (w, h, 8,8,8,0,32,0,GLFW_WINDOW)) {
std::cerr << "Something GLFW failed.\n"; std::cerr << "Something GLFW failed.\n";
return 1; return 1;
@ -277,4 +282,3 @@ int main () {
glfwTerminate (); glfwTerminate ();
} }