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MD2 woes Iv'e been working on an MD2 loader, based on an implementation from a book I have. It seems to load fine, however its not rendering. I'm not getting any compiler errors or warnings, so I don't really know where the problem may reside. I'll post the loader code, and the rendering code, for those who may want to take a look at it. Thanx in advance.
Md2.cpp
Object.h (most of it, not sure if its even necessary)Code:int loadmd2(obj objectP, char *file) { FILE *fileP; int filelen; char *filebuffer; //datamain *model; header *modelheader; texcoordindex *stP; framedata *frame; vector3d *pointlistP; mesh *triindex, *bufindexP; int i, j; fileP = fopen(file, "rb"); if(fileP == NULL) MessageBox(hWnd, "File Panic!: Failed to load specified MD2.", "Error", MB_OK); fseek(fileP, 0, SEEK_END); filelen = ftell(fileP); fseek(fileP, 0, SEEK_SET); filebuffer = (char*)malloc(filelen+1); fread(filebuffer, sizeof(char), filelen, fileP); modelheader = (header*)filebuffer; objectP = (datamain*)malloc(sizeof(datamain)); if(objectP == NULL) MessageBox(hWnd, "File Panic!: Memory allocation FAILED.", "Error", MB_OK); objectP->points = (vector3d*)malloc(sizeof(vector3d)*modelheader->numxyz*modelheader->numframes); objectP->numpoints = modelheader->numxyz; objectP->numframes = modelheader->numframes; objectP->framesize = modelheader->framesize; for(j=0; j<objectP->numframes; j++) { frame = (framedata*)&filebuffer[modelheader->offsetframes+modelheader->framesize*j]; pointlistP = (vector3d*)&objectP->points[objectP->numpoints*j]; for(i=0; i<objectP->numpoints; i++) { pointlistP[i].v[0] = frame->scale[0]*frame->fp[i].v[0]+frame->translate[0]; pointlistP[i].v[1] = frame->scale[1]*frame->fp[i].v[1]+frame->translate[1]; pointlistP[i].v[2] = frame->scale[2]*frame->fp[i].v[2]+frame->translate[2]; objectP->points[i].v[0] = pointlistP[i].v[0]; objectP->points[i].v[1] = pointlistP[i].v[1]; objectP->points[i].v[2] = pointlistP[i].v[2]; } } objectP->st = (texcoord*)malloc(sizeof(texcoord)*modelheader->numst); objectP->numtexcoords = modelheader->numst; stP = (texcoordindex*)&filebuffer[modelheader->offsetst]; for(i=0; i<objectP->numtexcoords; i++) { objectP->st[i].s = (float)stP[i].s / 256; //temporarly using hardcoded texture size objectP->st[i].t = (float)stP[i].t / 256; } objectP->numtris = modelheader->numtris; triindex = new mesh [objectP->numtris]; objectP->triindex = triindex; bufindexP = (mesh*)&filebuffer[modelheader->offsettris]; for(j=0; j<objectP->numframes; j++) { for(i=0; i<objectP->numtris; i++) { objectP->triindex[i].vertindices[0] = bufindexP[i].vertindices[0]; objectP->triindex[i].vertindices[1] = bufindexP[i].vertindices[1]; objectP->triindex[i].vertindices[2] = bufindexP[i].vertindices[2]; objectP->triindex[i].texcoordindices[0] = bufindexP[i].texcoordindices[0]; objectP->triindex[i].texcoordindices[1] = bufindexP[i].texcoordindices[1]; objectP->triindex[i].texcoordindices[2] = bufindexP[i].texcoordindices[2]; } } fclose(fileP); free(filebuffer); objectP->currentframe = 0; objectP->nextframe = 1; objectP->interpolate = 0.0; return true; }
rendering codeCode:struct header { int ident; int version; int skinwidth; int skinheight; int framesize; int numskins; int numxyz; int numst; int numtris; int numglcmds; int numframes; int offsetskins; int offsetst; int offsettris; int offsetframes; int offsetglcmds; int offsetend; }; struct texcoord { float s, t; }; struct texcoordindex { short s, t; }; struct framepoint { unsigned char v[3]; char normalindex; //unused }; struct framedata { char name[16]; float scale[3]; float translate[3]; framepoint fp[1]; }; struct mesh { unsigned short vertindices[3]; unsigned short texcoordindices[3]; }; typedef struct { int numframes; int numpoints; int numtris; int numtexcoords; int framesize; int texwidth, texheight; int currentframe; int nextframe; float interpolate; mesh *triindex; texcoord *st; vector3d *points; int id_texture1; // Number of the texture int type; vector3d min, max; float fsize; float m; vector3d pos; vector3d dir; vector3d v; matrix_4x4_type matrix; // Object matrix }datamain, *obj; ........ extern datamain objectP[MAX_OBJECTS];
Ive incorporated it into an object class, so I can load multiple files, with different array id's.Code:glActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wglGetProcAddress("glActiveTextureARB"); glMultiTexCoord2fARB = (PFNGLMULTITEXCOORD2FARBPROC) wglGetProcAddress("glMultiTexCoord2fARB"); for(i = 0; i<num_objects; i++) { vector3d *pointlist; pointlist = &objectP[i].points[objectP[i].numpoints*0]; if(!_peFrustum.CubeInFrustum(objectP[i].pos.x, objectP[i].pos.y, objectP[i].pos.z, objectP[i].fsize)) { i++; } glPushMatrix(); glMultMatrixf(&objectP[i].matrix[0][0]); if (objectP[i].id_texture1!=-1) { glActiveTextureARB(GL_TEXTURE0_ARB); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, objectP[i].id_texture1); // We set the active texture } else { glDisable(GL_TEXTURE_2D); } // Texture mapping OFF glBegin(GL_TRIANGLES); for(j=0; j<objectP[i].numtris; j++) { glVertex3fv(pointlist[objectP[i].triindex[j].vertindices[0]].v); glVertex3fv(pointlist[objectP[i].triindex[j].vertindices[2]].v); glVertex3fv(pointlist[objectP[i].triindex[j].vertindices[1]].v); } glEnd(); glPopMatrix(); }
-psychopath
