static int MakeMeshTriangles(int width, int height, srfVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE],
srfTriangle_t triangles[SHADER_MAX_TRIANGLES])
{
int i, j;
int numTriangles;
int w, h;
srfVert_t *dv;
static srfVert_t ctrl2[MAX_GRID_SIZE * MAX_GRID_SIZE];
h = height - 1;
w = width - 1;
numTriangles = 0;
for(i = 0; i < h; i++)
{
for(j = 0; j < w; j++)
{
int v1, v2, v3, v4;
// vertex order to be reckognized as tristrips
v1 = i * width + j + 1;
v2 = v1 - 1;
v3 = v2 + width;
v4 = v3 + 1;
triangles[numTriangles].indexes[0] = v2;
triangles[numTriangles].indexes[1] = v3;
triangles[numTriangles].indexes[2] = v1;
numTriangles++;
triangles[numTriangles].indexes[0] = v1;
triangles[numTriangles].indexes[1] = v3;
triangles[numTriangles].indexes[2] = v4;
numTriangles++;
}
}
R_CalcSurfaceTriangleNeighbors(numTriangles, triangles);
// FIXME: use more elegant way
for(i = 0; i < width; i++)
{
for(j = 0; j < height; j++)
{
dv = &ctrl2[j * width + i];
*dv = ctrl[j][i];
}
}
R_CalcSurfaceTrianglePlanes(numTriangles, triangles, ctrl2);
return numTriangles;
}
/*
=================
R_LoadMD3
=================
*/
qboolean R_LoadMD3(model_t * mod, int lod, void *buffer, int bufferSize, const char *modName)
{
int i, j, k;//, l;
md3Header_t *md3Model;
md3Frame_t *md3Frame;
md3Surface_t *md3Surf;
md3Shader_t *md3Shader;
md3Triangle_t *md3Tri;
md3St_t *md3st;
md3XyzNormal_t *md3xyz;
md3Tag_t *md3Tag;
mdvModel_t *mdvModel;
mdvFrame_t *frame;
mdvSurface_t *surf;//, *surface;
srfTriangle_t *tri;
mdvXyz_t *v;
mdvSt_t *st;
mdvTag_t *tag;
mdvTagName_t *tagName;
int version;
int size;
md3Model = (md3Header_t *) buffer;
version = LittleLong(md3Model->version);
if(version != MD3_VERSION)
{
ri.Printf(PRINT_WARNING, "R_LoadMD3: %s has wrong version (%i should be %i)\n", modName, version, MD3_VERSION);
return qfalse;
}
mod->type = MOD_MESH;
size = LittleLong(md3Model->ofsEnd);
mod->dataSize += size;
mdvModel = mod->mdv[lod] = (mdvModel_t*)ri.Hunk_Alloc(sizeof(mdvModel_t), h_low);
// Com_Memcpy(mod->md3[lod], buffer, LittleLong(md3Model->ofsEnd));
LL(md3Model->ident);
LL(md3Model->version);
LL(md3Model->numFrames);
LL(md3Model->numTags);
LL(md3Model->numSurfaces);
LL(md3Model->ofsFrames);
LL(md3Model->ofsTags);
LL(md3Model->ofsSurfaces);
LL(md3Model->ofsEnd);
if(md3Model->numFrames < 1)
{
ri.Printf(PRINT_WARNING, "R_LoadMD3: %s has no frames\n", modName);
return qfalse;
}
// swap all the frames
mdvModel->numFrames = md3Model->numFrames;
mdvModel->frames = frame = (mdvFrame_t*)ri.Hunk_Alloc(sizeof(*frame) * md3Model->numFrames, h_low);
md3Frame = (md3Frame_t *) ((byte *) md3Model + md3Model->ofsFrames);
for(i = 0; i < md3Model->numFrames; i++, frame++, md3Frame++)
{
frame->radius = LittleFloat(md3Frame->radius);
for(j = 0; j < 3; j++)
{
frame->bounds[0][j] = LittleFloat(md3Frame->bounds[0][j]);
frame->bounds[1][j] = LittleFloat(md3Frame->bounds[1][j]);
frame->localOrigin[j] = LittleFloat(md3Frame->localOrigin[j]);
}
}
// swap all the tags
mdvModel->numTags = md3Model->numTags;
mdvModel->tags = tag = (mdvTag_t*)ri.Hunk_Alloc(sizeof(*tag) * (md3Model->numTags * md3Model->numFrames), h_low);
md3Tag = (md3Tag_t *) ((byte *) md3Model + md3Model->ofsTags);
for(i = 0; i < md3Model->numTags * md3Model->numFrames; i++, tag++, md3Tag++)
{
for(j = 0; j < 3; j++)
{
tag->origin[j] = LittleFloat(md3Tag->origin[j]);
tag->axis[0][j] = LittleFloat(md3Tag->axis[0][j]);
tag->axis[1][j] = LittleFloat(md3Tag->axis[1][j]);
tag->axis[2][j] = LittleFloat(md3Tag->axis[2][j]);
}
}
mdvModel->tagNames = tagName = (mdvTagName_t*)ri.Hunk_Alloc(sizeof(*tagName) * (md3Model->numTags), h_low);
md3Tag = (md3Tag_t *) ((byte *) md3Model + md3Model->ofsTags);
for(i = 0; i < md3Model->numTags; i++, tagName++, md3Tag++)
{
Q_strncpyz(tagName->name, md3Tag->name, sizeof(tagName->name));
}
// swap all the surfaces
mdvModel->numSurfaces = md3Model->numSurfaces;
mdvModel->surfaces = surf = (mdvSurface_t*)ri.Hunk_Alloc(sizeof(*surf) * md3Model->numSurfaces, h_low);
md3Surf = (md3Surface_t *) ((byte *) md3Model + md3Model->ofsSurfaces);
for(i = 0; i < md3Model->numSurfaces; i++)
{
LL(md3Surf->ident);
LL(md3Surf->flags);
LL(md3Surf->numFrames);
LL(md3Surf->numShaders);
LL(md3Surf->numTriangles);
LL(md3Surf->ofsTriangles);
LL(md3Surf->numVerts);
LL(md3Surf->ofsShaders);
LL(md3Surf->ofsSt);
LL(md3Surf->ofsXyzNormals);
LL(md3Surf->ofsEnd);
if(md3Surf->numVerts > SHADER_MAX_VERTEXES)
{
ri.Error(ERR_DROP, "R_LoadMD3: %s has more than %i verts on a surface (%i)",
modName, SHADER_MAX_VERTEXES, md3Surf->numVerts);
}
if(md3Surf->numTriangles * 3 > SHADER_MAX_INDEXES)
{
ri.Error(ERR_DROP, "R_LoadMD3: %s has more than %i triangles on a surface (%i)",
modName, SHADER_MAX_INDEXES / 3, md3Surf->numTriangles);
}
// change to surface identifier
surf->surfaceType = SF_MDV;
// give pointer to model for Tess_SurfaceMDX
surf->model = mdvModel;
// copy surface name
Q_strncpyz(surf->name, md3Surf->name, sizeof(surf->name));
// lowercase the surface name so skin compares are faster
Q_strlwr(surf->name);
// strip off a trailing _1 or _2
// this is a crutch for q3data being a mess
j = strlen(surf->name);
if(j > 2 && surf->name[j - 2] == '_')
{
surf->name[j - 2] = 0;
}
// register the shaders
/*
surf->numShaders = md3Surf->numShaders;
surf->shaders = shader = ri.Hunk_Alloc(sizeof(*shader) * md3Surf->numShaders, h_low);
md3Shader = (md3Shader_t *) ((byte *) md3Surf + md3Surf->ofsShaders);
for(j = 0; j < md3Surf->numShaders; j++, shader++, md3Shader++)
{
shader_t *sh;
sh = R_FindShader(md3Shader->name, SHADER_3D_DYNAMIC, qtrue);
if(sh->defaultShader)
{
shader->shaderIndex = 0;
}
else
{
shader->shaderIndex = sh->index;
}
}
*/
// only consider the first shader
md3Shader = (md3Shader_t *) ((byte *) md3Surf + md3Surf->ofsShaders);
surf->shader = R_FindShader(md3Shader->name, SHADER_3D_DYNAMIC, qtrue);
// swap all the triangles
surf->numTriangles = md3Surf->numTriangles;
surf->triangles = tri = (srfTriangle_t*)ri.Hunk_Alloc(sizeof(*tri) * md3Surf->numTriangles, h_low);
md3Tri = (md3Triangle_t *) ((byte *) md3Surf + md3Surf->ofsTriangles);
for(j = 0; j < md3Surf->numTriangles; j++, tri++, md3Tri++)
{
tri->indexes[0] = LittleLong(md3Tri->indexes[0]);
tri->indexes[1] = LittleLong(md3Tri->indexes[1]);
tri->indexes[2] = LittleLong(md3Tri->indexes[2]);
}
R_CalcSurfaceTriangleNeighbors(surf->numTriangles, surf->triangles);
// swap all the XyzNormals
surf->numVerts = md3Surf->numVerts;
surf->verts = v = (mdvXyz_t*)ri.Hunk_Alloc( sizeof( *v ) * ( md3Surf->numVerts * md3Surf->numFrames ), h_low );
md3xyz = (md3XyzNormal_t *) ((byte *) md3Surf + md3Surf->ofsXyzNormals);
for(j = 0; j < md3Surf->numVerts * md3Surf->numFrames; j++, md3xyz++, v++)
{
v->xyz[0] = LittleShort(md3xyz->xyz[0]) * MD3_XYZ_SCALE;
v->xyz[1] = LittleShort(md3xyz->xyz[1]) * MD3_XYZ_SCALE;
v->xyz[2] = LittleShort(md3xyz->xyz[2]) * MD3_XYZ_SCALE;
}
// swap all the ST
surf->st = st = (mdvSt_t*)ri.Hunk_Alloc(sizeof(*st) * md3Surf->numVerts, h_low);
md3st = (md3St_t *) ((byte *) md3Surf + md3Surf->ofsSt);
for(j = 0; j < md3Surf->numVerts; j++, md3st++, st++)
{
st->st[0] = LittleFloat(md3st->st[0]);
st->st[1] = LittleFloat(md3st->st[1]);
}
// find the next surface
md3Surf = (md3Surface_t *) ((byte *) md3Surf + md3Surf->ofsEnd);
surf++;
}
#if defined(USE_D3D10)
// TODO
#else
#if 1
// create VBO surfaces from md3 surfaces
{
mdvNormTanBi_t *vertexes;
mdvNormTanBi_t *vert;
growList_t vboSurfaces;
srfVBOMDVMesh_t *vboSurf;
byte *data;
int dataSize;
int dataOfs;
vec4_t tmp;
GLuint ofsTexCoords;
GLuint ofsTangents;
GLuint ofsBinormals;
GLuint ofsNormals;
GLuint sizeXYZ;
GLuint sizeTangents = 0;
GLuint sizeBinormals = 0;
GLuint sizeNormals = 0;
int vertexesNum;
int f;
Com_InitGrowList(&vboSurfaces, 10);
for(i = 0, surf = mdvModel->surfaces; i < mdvModel->numSurfaces; i++, surf++)
{
//allocate temp memory for vertex data
vertexes = (mdvNormTanBi_t*)ri.Hunk_AllocateTempMemory( sizeof( *vertexes ) * surf->numVerts * mdvModel->numFrames );
// calc tangent spaces
{
const float *v0, *v1, *v2;
const float *t0, *t1, *t2;
vec3_t tangent;
vec3_t binormal;
vec3_t normal;
for ( j = 0, vert = vertexes; j < ( surf->numVerts * mdvModel->numFrames ); j++, vert++ )
{
VectorClear(vert->tangent);
VectorClear(vert->binormal);
VectorClear(vert->normal);
}
for(f = 0; f < mdvModel->numFrames; f++)
{
for(j = 0, tri = surf->triangles; j < surf->numTriangles; j++, tri++)
{
v0 = surf->verts[surf->numVerts * f + tri->indexes[0]].xyz;
v1 = surf->verts[surf->numVerts * f + tri->indexes[1]].xyz;
v2 = surf->verts[surf->numVerts * f + tri->indexes[2]].xyz;
t0 = surf->st[tri->indexes[0]].st;
t1 = surf->st[tri->indexes[1]].st;
t2 = surf->st[tri->indexes[2]].st;
#if 1
R_CalcTangentSpace(tangent, binormal, normal, v0, v1, v2, t0, t1, t2);
#else
R_CalcNormalForTriangle(normal, v0, v1, v2);
R_CalcTangentsForTriangle(tangent, binormal, v0, v1, v2, t0, t1, t2);
#endif
for(k = 0; k < 3; k++)
{
float *v;
v = vertexes[surf->numVerts * f + tri->indexes[k]].tangent;
VectorAdd(v, tangent, v);
v = vertexes[surf->numVerts * f + tri->indexes[k]].binormal;
VectorAdd(v, binormal, v);
v = vertexes[surf->numVerts * f + tri->indexes[k]].normal;
VectorAdd(v, normal, v);
}
}
}
for ( j = 0, vert = vertexes; j < ( surf->numVerts * mdvModel->numFrames ); j++, vert++ )
{
VectorNormalize(vert->tangent);
VectorNormalize(vert->binormal);
VectorNormalize(vert->normal);
}
}
//ri.Printf(PRINT_ALL, "...calculating MD3 mesh VBOs ( '%s', %i verts %i tris )\n", surf->name, surf->numVerts, surf->numTriangles);
// create surface
vboSurf = (srfVBOMDVMesh_t*)ri.Hunk_Alloc(sizeof(*vboSurf), h_low);
Com_AddToGrowList(&vboSurfaces, vboSurf);
vboSurf->surfaceType = SF_VBO_MDVMESH;
vboSurf->mdvModel = mdvModel;
vboSurf->mdvSurface = surf;
vboSurf->numIndexes = surf->numTriangles * 3;
vboSurf->numVerts = surf->numVerts;
/*
vboSurf->vbo = R_CreateVBO2(va("staticWorldMesh_vertices %i", vboSurfaces.currentElements), numVerts, optimizedVerts,
ATTR_POSITION | ATTR_TEXCOORD | ATTR_LIGHTCOORD | ATTR_TANGENT | ATTR_BINORMAL | ATTR_NORMAL
| ATTR_COLOR);
*/
vboSurf->ibo = R_CreateIBO2(va("staticMD3Mesh_IBO %s", surf->name), surf->numTriangles, surf->triangles, VBO_USAGE_STATIC);
// create VBO
vertexesNum = surf->numVerts;
// allocate vbo data
dataSize = (surf->numVerts * mdvModel->numFrames * sizeof(vec4_t) * 4) + // xyz, tangent, binormal, normal
(surf->numVerts * sizeof(vec4_t)); // texcoords
data = (byte*)ri.Hunk_AllocateTempMemory(dataSize);
dataOfs = 0;
// feed vertex XYZ
for(f = 0; f < mdvModel->numFrames; f++)
{
for(j = 0; j < vertexesNum; j++)
{
for(k = 0; k < 3; k++)
{
tmp[k] = vertexes[f * vertexesNum + j].xyz[k];
}
tmp[3] = 1;
Com_Memcpy(data + dataOfs, (vec_t *) tmp, sizeof(vec4_t));
dataOfs += sizeof(vec4_t);
}
if(f == 0)
{
sizeXYZ = dataOfs;
}
}
// feed vertex texcoords
ofsTexCoords = dataOfs;
for(j = 0; j < vertexesNum; j++)
{
for(k = 0; k < 2; k++)
{
tmp[k] = surf->st[j].st[k];
}
tmp[2] = 0;
tmp[3] = 1;
Com_Memcpy(data + dataOfs, (vec_t *) tmp, sizeof(vec4_t));
dataOfs += sizeof(vec4_t);
}
// feed vertex tangents
ofsTangents = dataOfs;
for(f = 0; f < mdvModel->numFrames; f++)
{
for(j = 0; j < vertexesNum; j++)
{
for(k = 0; k < 3; k++)
{
tmp[k] = vertexes[f * vertexesNum + j].tangent[k];
}
tmp[3] = 1;
Com_Memcpy(data + dataOfs, (vec_t *) tmp, sizeof(vec4_t));
dataOfs += sizeof(vec4_t);
}
if(f == 0)
{
sizeTangents = dataOfs - ofsTangents;
}
}
// feed vertex binormals
ofsBinormals = dataOfs;
for(f = 0; f < mdvModel->numFrames; f++)
{
for(j = 0; j < vertexesNum; j++)
{
for(k = 0; k < 3; k++)
{
tmp[k] = vertexes[f * vertexesNum + j].binormal[k];
}
tmp[3] = 1;
Com_Memcpy(data + dataOfs, (vec_t *) tmp, sizeof(vec4_t));
dataOfs += sizeof(vec4_t);
}
if(f == 0)
{
sizeBinormals = dataOfs - ofsBinormals;
}
}
// feed vertex normals
ofsNormals = dataOfs;
for(f = 0; f < mdvModel->numFrames; f++)
{
for(j = 0; j < vertexesNum; j++)
{
for(k = 0; k < 3; k++)
{
tmp[k] = vertexes[f * vertexesNum + j].normal[k];
}
tmp[3] = 1;
Com_Memcpy(data + dataOfs, (vec_t *) tmp, sizeof(vec4_t));
dataOfs += sizeof(vec4_t);
}
if(f == 0)
{
sizeNormals = dataOfs - ofsNormals;
}
}
vboSurf->vbo = R_CreateVBO(va("staticMD3Mesh_VBO '%s'", surf->name), data, dataSize, VBO_USAGE_STATIC);
vboSurf->vbo->ofsXYZ = 0;
vboSurf->vbo->ofsTexCoords = ofsTexCoords;
vboSurf->vbo->ofsLightCoords = ofsTexCoords;
vboSurf->vbo->ofsTangents = ofsTangents;
vboSurf->vbo->ofsBinormals = ofsBinormals;
vboSurf->vbo->ofsNormals = ofsNormals;
vboSurf->vbo->sizeXYZ = sizeXYZ;
vboSurf->vbo->sizeTangents = sizeTangents;
vboSurf->vbo->sizeBinormals = sizeBinormals;
vboSurf->vbo->sizeNormals = sizeNormals;
ri.Hunk_FreeTempMemory(data);
}
// move VBO surfaces list to hunk
mdvModel->numVBOSurfaces = vboSurfaces.currentElements;
mdvModel->vboSurfaces = (srfVBOMDVMesh_t**)ri.Hunk_Alloc(mdvModel->numVBOSurfaces * sizeof(*mdvModel->vboSurfaces), h_low);
for(i = 0; i < mdvModel->numVBOSurfaces; i++)
{
mdvModel->vboSurfaces[i] = (srfVBOMDVMesh_t *) Com_GrowListElement(&vboSurfaces, i);
}
Com_DestroyGrowList(&vboSurfaces);
}
#endif
#endif // USE_D3D10
return qtrue;
}
/*
=================
R_LoadMD5
=================
*/
qboolean R_LoadMD5(model_t * mod, void *buffer, int bufferSize, const char *modName)
{
int i, j, k;
md5Model_t *md5;
md5Bone_t *bone;
md5Surface_t *surf;
srfTriangle_t *tri;
md5Vertex_t *v;
md5Weight_t *weight;
int version;
shader_t *sh;
char *buf_p;
char *token;
vec3_t boneOrigin;
quat_t boneQuat;
matrix_t boneMat;
int numRemaining;
growList_t sortedTriangles;
growList_t vboTriangles;
growList_t vboSurfaces;
int numBoneReferences;
int boneReferences[MAX_BONES];
buf_p = (char *)buffer;
// skip MD5Version indent string
COM_ParseExt(&buf_p, qfalse);
// check version
token = COM_ParseExt(&buf_p, qfalse);
version = atoi(token);
if(version != MD5_VERSION)
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: %s has wrong version (%i should be %i)\n", modName, version, MD5_VERSION);
return qfalse;
}
mod->type = MOD_MD5;
mod->dataSize += sizeof(md5Model_t);
md5 = mod->md5 = ri.Hunk_Alloc(sizeof(md5Model_t), h_low);
// skip commandline <arguments string>
token = COM_ParseExt(&buf_p, qtrue);
token = COM_ParseExt(&buf_p, qtrue);
// ri.Printf(PRINT_ALL, "%s\n", token);
// parse numJoints <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "numJoints"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'numJoints' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
md5->numBones = atoi(token);
// parse numMeshes <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "numMeshes"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'numMeshes' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
md5->numSurfaces = atoi(token);
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' has %i surfaces\n", modName, md5->numSurfaces);
if(md5->numBones < 1)
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: '%s' has no bones\n", modName);
return qfalse;
}
if(md5->numBones > MAX_BONES)
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: '%s' has more than %i bones (%i)\n", modName, MAX_BONES, md5->numBones);
return qfalse;
}
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' has %i bones\n", modName, md5->numBones);
// parse all the bones
md5->bones = ri.Hunk_Alloc(sizeof(*bone) * md5->numBones, h_low);
// parse joints {
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "joints"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'joints' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, "{"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '{' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for(i = 0, bone = md5->bones; i < md5->numBones; i++, bone++)
{
token = COM_ParseExt(&buf_p, qtrue);
Q_strncpyz(bone->name, token, sizeof(bone->name));
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' has bone '%s'\n", modName, bone->name);
token = COM_ParseExt(&buf_p, qfalse);
bone->parentIndex = atoi(token);
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' has bone '%s' with parent index %i\n", modName, bone->name, bone->parentIndex);
if(bone->parentIndex >= md5->numBones)
{
ri.Error(ERR_DROP, "R_LoadMD5: '%s' has bone '%s' with bad parent index %i while numBones is %i\n", modName,
bone->name, bone->parentIndex, md5->numBones);
}
// skip (
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, "("))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for(j = 0; j < 3; j++)
{
token = COM_ParseExt(&buf_p, qfalse);
boneOrigin[j] = atof(token);
}
// skip )
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, ")"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected ')' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
// skip (
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, "("))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for(j = 0; j < 3; j++)
{
token = COM_ParseExt(&buf_p, qfalse);
boneQuat[j] = atof(token);
}
QuatCalcW(boneQuat);
MatrixFromQuat(boneMat, boneQuat);
VectorCopy(boneOrigin, bone->origin);
QuatCopy(boneQuat, bone->rotation);
MatrixSetupTransformFromQuat(bone->inverseTransform, boneQuat, boneOrigin);
MatrixInverse(bone->inverseTransform);
// skip )
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, ")"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
}
// parse }
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "}"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '}' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
// parse all the surfaces
if(md5->numSurfaces < 1)
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: '%s' has no surfaces\n", modName);
return qfalse;
}
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' has %i surfaces\n", modName, md5->numSurfaces);
md5->surfaces = ri.Hunk_Alloc(sizeof(*surf) * md5->numSurfaces, h_low);
for(i = 0, surf = md5->surfaces; i < md5->numSurfaces; i++, surf++)
{
// parse mesh {
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "mesh"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'mesh' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, "{"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '{' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
// change to surface identifier
surf->surfaceType = SF_MD5;
// give pointer to model for Tess_SurfaceMD5
surf->model = md5;
// parse shader <name>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "shader"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'shader' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
Q_strncpyz(surf->shader, token, sizeof(surf->shader));
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' uses shader '%s'\n", modName, surf->shader);
// FIXME .md5mesh meshes don't have surface names
// lowercase the surface name so skin compares are faster
//Q_strlwr(surf->name);
//ri.Printf(PRINT_ALL, "R_LoadMD5: '%s' has surface '%s'\n", modName, surf->name);
// register the shaders
sh = R_FindShader(surf->shader, SHADER_3D_DYNAMIC, qtrue);
if(sh->defaultShader)
{
surf->shaderIndex = 0;
}
else
{
surf->shaderIndex = sh->index;
}
// parse numVerts <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "numVerts"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'numVerts' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
surf->numVerts = atoi(token);
if(surf->numVerts > SHADER_MAX_VERTEXES)
{
ri.Error(ERR_DROP, "R_LoadMD5: '%s' has more than %i verts on a surface (%i)",
modName, SHADER_MAX_VERTEXES, surf->numVerts);
}
surf->verts = ri.Hunk_Alloc(sizeof(*v) * surf->numVerts, h_low);
for(j = 0, v = surf->verts; j < surf->numVerts; j++, v++)
{
// skip vert <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "vert"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'vert' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
COM_ParseExt(&buf_p, qfalse);
// skip (
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, "("))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for(k = 0; k < 2; k++)
{
token = COM_ParseExt(&buf_p, qfalse);
v->texCoords[k] = atof(token);
}
// skip )
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, ")"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected ')' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
v->firstWeight = atoi(token);
token = COM_ParseExt(&buf_p, qfalse);
v->numWeights = atoi(token);
if(v->numWeights > MAX_WEIGHTS)
{
ri.Error(ERR_DROP, "R_LoadMD5: vertex %i requires more than %i weights on surface (%i) in model '%s'",
j, MAX_WEIGHTS, i, modName);
}
}
// parse numTris <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "numTris"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'numTris' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
surf->numTriangles = atoi(token);
if(surf->numTriangles > SHADER_MAX_TRIANGLES)
{
ri.Error(ERR_DROP, "R_LoadMD5: '%s' has more than %i triangles on a surface (%i)",
modName, SHADER_MAX_TRIANGLES, surf->numTriangles);
}
surf->triangles = ri.Hunk_Alloc(sizeof(*tri) * surf->numTriangles, h_low);
for(j = 0, tri = surf->triangles; j < surf->numTriangles; j++, tri++)
{
// skip tri <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "tri"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'tri' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
COM_ParseExt(&buf_p, qfalse);
for(k = 0; k < 3; k++)
{
token = COM_ParseExt(&buf_p, qfalse);
tri->indexes[k] = atoi(token);
}
}
R_CalcSurfaceTriangleNeighbors(surf->numTriangles, surf->triangles);
// parse numWeights <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "numWeights"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'numWeights' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt(&buf_p, qfalse);
surf->numWeights = atoi(token);
surf->weights = ri.Hunk_Alloc(sizeof(*weight) * surf->numWeights, h_low);
for(j = 0, weight = surf->weights; j < surf->numWeights; j++, weight++)
{
// skip weight <number>
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "weight"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected 'weight' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
COM_ParseExt(&buf_p, qfalse);
token = COM_ParseExt(&buf_p, qfalse);
weight->boneIndex = atoi(token);
token = COM_ParseExt(&buf_p, qfalse);
weight->boneWeight = atof(token);
// skip (
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, "("))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for(k = 0; k < 3; k++)
{
token = COM_ParseExt(&buf_p, qfalse);
weight->offset[k] = atof(token);
}
// skip )
token = COM_ParseExt(&buf_p, qfalse);
if(Q_stricmp(token, ")"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected ')' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
}
// parse }
token = COM_ParseExt(&buf_p, qtrue);
if(Q_stricmp(token, "}"))
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: expected '}' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
// loop trough all vertices and set up the vertex weights
for(j = 0, v = surf->verts; j < surf->numVerts; j++, v++)
{
v->weights = ri.Hunk_Alloc(sizeof(*v->weights) * v->numWeights, h_low);
for(k = 0; k < v->numWeights; k++)
{
v->weights[k] = surf->weights + (v->firstWeight + k);
}
}
}
// loading is done now calculate the bounding box and tangent spaces
ClearBounds(md5->bounds[0], md5->bounds[1]);
for(i = 0, surf = md5->surfaces; i < md5->numSurfaces; i++, surf++)
{
for(j = 0, v = surf->verts; j < surf->numVerts; j++, v++)
{
vec3_t tmpVert;
md5Weight_t *w;
VectorClear(tmpVert);
for(k = 0, w = v->weights[0]; k < v->numWeights; k++, w++)
{
vec3_t offsetVec;
bone = &md5->bones[w->boneIndex];
QuatTransformVector(bone->rotation, w->offset, offsetVec);
VectorAdd(bone->origin, offsetVec, offsetVec);
VectorMA(tmpVert, w->boneWeight, offsetVec, tmpVert);
}
VectorCopy(tmpVert, v->position);
AddPointToBounds(tmpVert, md5->bounds[0], md5->bounds[1]);
}
// calc tangent spaces
#if 1
{
const float *v0, *v1, *v2;
const float *t0, *t1, *t2;
vec3_t tangent;
vec3_t binormal;
vec3_t normal;
for(j = 0, v = surf->verts; j < surf->numVerts; j++, v++)
{
VectorClear(v->tangent);
VectorClear(v->binormal);
VectorClear(v->normal);
}
for(j = 0, tri = surf->triangles; j < surf->numTriangles; j++, tri++)
{
v0 = surf->verts[tri->indexes[0]].position;
v1 = surf->verts[tri->indexes[1]].position;
v2 = surf->verts[tri->indexes[2]].position;
t0 = surf->verts[tri->indexes[0]].texCoords;
t1 = surf->verts[tri->indexes[1]].texCoords;
t2 = surf->verts[tri->indexes[2]].texCoords;
#if 1
R_CalcTangentSpace(tangent, binormal, normal, v0, v1, v2, t0, t1, t2);
#else
R_CalcNormalForTriangle(normal, v0, v1, v2);
R_CalcTangentsForTriangle(tangent, binormal, v0, v1, v2, t0, t1, t2);
#endif
for(k = 0; k < 3; k++)
{
float *v;
v = surf->verts[tri->indexes[k]].tangent;
VectorAdd(v, tangent, v);
v = surf->verts[tri->indexes[k]].binormal;
VectorAdd(v, binormal, v);
v = surf->verts[tri->indexes[k]].normal;
VectorAdd(v, normal, v);
}
}
for(j = 0, v = surf->verts; j < surf->numVerts; j++, v++)
{
VectorNormalize(v->tangent);
VectorNormalize(v->binormal);
VectorNormalize(v->normal);
}
}
#else
{
int k;
float bb, s, t;
vec3_t bary;
vec3_t faceNormal;
md5Vertex_t *dv[3];
for(j = 0, tri = surf->triangles; j < surf->numTriangles; j++, tri++)
{
dv[0] = &surf->verts[tri->indexes[0]];
dv[1] = &surf->verts[tri->indexes[1]];
dv[2] = &surf->verts[tri->indexes[2]];
R_CalcNormalForTriangle(faceNormal, dv[0]->position, dv[1]->position, dv[2]->position);
// calculate barycentric basis for the triangle
bb = (dv[1]->texCoords[0] - dv[0]->texCoords[0]) * (dv[2]->texCoords[1] - dv[0]->texCoords[1]) - (dv[2]->texCoords[0] - dv[0]->texCoords[0]) * (dv[1]->texCoords[1] -
dv[0]->texCoords[1]);
if(fabs(bb) < 0.00000001f)
continue;
// do each vertex
for(k = 0; k < 3; k++)
{
// calculate s tangent vector
s = dv[k]->texCoords[0] + 10.0f;
t = dv[k]->texCoords[1];
bary[0] = ((dv[1]->texCoords[0] - s) * (dv[2]->texCoords[1] - t) - (dv[2]->texCoords[0] - s) * (dv[1]->texCoords[1] - t)) / bb;
bary[1] = ((dv[2]->texCoords[0] - s) * (dv[0]->texCoords[1] - t) - (dv[0]->texCoords[0] - s) * (dv[2]->texCoords[1] - t)) / bb;
bary[2] = ((dv[0]->texCoords[0] - s) * (dv[1]->texCoords[1] - t) - (dv[1]->texCoords[0] - s) * (dv[0]->texCoords[1] - t)) / bb;
dv[k]->tangent[0] = bary[0] * dv[0]->position[0] + bary[1] * dv[1]->position[0] + bary[2] * dv[2]->position[0];
dv[k]->tangent[1] = bary[0] * dv[0]->position[1] + bary[1] * dv[1]->position[1] + bary[2] * dv[2]->position[1];
dv[k]->tangent[2] = bary[0] * dv[0]->position[2] + bary[1] * dv[1]->position[2] + bary[2] * dv[2]->position[2];
VectorSubtract(dv[k]->tangent, dv[k]->position, dv[k]->tangent);
VectorNormalize(dv[k]->tangent);
// calculate t tangent vector (binormal)
s = dv[k]->texCoords[0];
t = dv[k]->texCoords[1] + 10.0f;
bary[0] = ((dv[1]->texCoords[0] - s) * (dv[2]->texCoords[1] - t) - (dv[2]->texCoords[0] - s) * (dv[1]->texCoords[1] - t)) / bb;
bary[1] = ((dv[2]->texCoords[0] - s) * (dv[0]->texCoords[1] - t) - (dv[0]->texCoords[0] - s) * (dv[2]->texCoords[1] - t)) / bb;
bary[2] = ((dv[0]->texCoords[0] - s) * (dv[1]->texCoords[1] - t) - (dv[1]->texCoords[0] - s) * (dv[0]->texCoords[1] - t)) / bb;
dv[k]->binormal[0] = bary[0] * dv[0]->position[0] + bary[1] * dv[1]->position[0] + bary[2] * dv[2]->position[0];
dv[k]->binormal[1] = bary[0] * dv[0]->position[1] + bary[1] * dv[1]->position[1] + bary[2] * dv[2]->position[1];
dv[k]->binormal[2] = bary[0] * dv[0]->position[2] + bary[1] * dv[1]->position[2] + bary[2] * dv[2]->position[2];
VectorSubtract(dv[k]->binormal, dv[k]->position, dv[k]->binormal);
VectorNormalize(dv[k]->binormal);
// calculate the normal as cross product N=TxB
#if 0
CrossProduct(dv[k]->tangent, dv[k]->binormal, dv[k]->normal);
VectorNormalize(dv[k]->normal);
// Gram-Schmidt orthogonalization process for B
// compute the cross product B=NxT to obtain
// an orthogonal basis
CrossProduct(dv[k]->normal, dv[k]->tangent, dv[k]->binormal);
if(DotProduct(dv[k]->normal, faceNormal) < 0)
{
VectorInverse(dv[k]->normal);
//VectorInverse(dv[k]->tangent);
//VectorInverse(dv[k]->binormal);
}
#else
VectorAdd(dv[k]->normal, faceNormal, dv[k]->normal);
#endif
}
}
#if 1
for(j = 0, v = surf->verts; j < surf->numVerts; j++, v++)
{
//VectorNormalize(v->tangent);
//VectorNormalize(v->binormal);
VectorNormalize(v->normal);
}
#endif
}
#endif
#if 0
// do another extra smoothing for normals to avoid flat shading
for(j = 0; j < surf->numVerts; j++)
{
for(k = 0; k < surf->numVerts; k++)
{
if(j == k)
continue;
if(VectorCompare(surf->verts[j].position, surf->verts[k].position))
{
VectorAdd(surf->verts[j].normal, surf->verts[k].normal, surf->verts[j].normal);
}
}
VectorNormalize(surf->verts[j].normal);
}
#endif
}
// split the surfaces into VBO surfaces by the maximum number of GPU vertex skinning bones
Com_InitGrowList(&vboSurfaces, 10);
for(i = 0, surf = md5->surfaces; i < md5->numSurfaces; i++, surf++)
{
// sort triangles
Com_InitGrowList(&sortedTriangles, 1000);
for(j = 0, tri = surf->triangles; j < surf->numTriangles; j++, tri++)
{
skelTriangle_t *sortTri = Com_Allocate(sizeof(*sortTri));
for(k = 0; k < 3; k++)
{
sortTri->indexes[k] = tri->indexes[k];
sortTri->vertexes[k] = &surf->verts[tri->indexes[k]];
}
sortTri->referenced = qfalse;
Com_AddToGrowList(&sortedTriangles, sortTri);
}
//qsort(sortedTriangles.elements, sortedTriangles.currentElements, sizeof(void *), CompareTrianglesByBoneReferences);
#if 0
for(j = 0; j < sortedTriangles.currentElements; j++)
{
int b[MAX_WEIGHTS * 3];
skelTriangle_t *sortTri = Com_GrowListElement(&sortedTriangles, j);
for(k = 0; k < 3; k++)
{
v = sortTri->vertexes[k];
for(l = 0; l < MAX_WEIGHTS; l++)
{
b[k * 3 + l] = (l < v->numWeights) ? v->weights[l]->boneIndex : 9999;
}
qsort(b, MAX_WEIGHTS * 3, sizeof(int), CompareBoneIndices);
//ri.Printf(PRINT_ALL, "bone indices: %i %i %i %i\n", b[k * 3 + 0], b[k * 3 + 1], b[k * 3 + 2], b[k * 3 + 3]);
}
}
#endif
numRemaining = sortedTriangles.currentElements;
while(numRemaining)
{
numBoneReferences = 0;
Com_Memset(boneReferences, 0, sizeof(boneReferences));
Com_InitGrowList(&vboTriangles, 1000);
for(j = 0; j < sortedTriangles.currentElements; j++)
{
skelTriangle_t *sortTri = Com_GrowListElement(&sortedTriangles, j);
if(sortTri->referenced)
continue;
if(AddTriangleToVBOTriangleList(&vboTriangles, sortTri, &numBoneReferences, boneReferences))
{
sortTri->referenced = qtrue;
}
}
if(!vboTriangles.currentElements)
{
ri.Printf(PRINT_WARNING, "R_LoadMD5: could not add triangles to a remaining VBO surfaces for model '%s'\n", modName);
break;
}
AddSurfaceToVBOSurfacesList(&vboSurfaces, &vboTriangles, md5, surf, i, numBoneReferences, boneReferences);
numRemaining -= vboTriangles.currentElements;
Com_DestroyGrowList(&vboTriangles);
}
for(j = 0; j < sortedTriangles.currentElements; j++)
{
skelTriangle_t *sortTri = Com_GrowListElement(&sortedTriangles, j);
Com_Dealloc(sortTri);
}
Com_DestroyGrowList(&sortedTriangles);
}
// move VBO surfaces list to hunk
md5->numVBOSurfaces = vboSurfaces.currentElements;
md5->vboSurfaces = ri.Hunk_Alloc(md5->numVBOSurfaces * sizeof(*md5->vboSurfaces), h_low);
for(i = 0; i < md5->numVBOSurfaces; i++)
{
md5->vboSurfaces[i] = (srfVBOMD5Mesh_t *) Com_GrowListElement(&vboSurfaces, i);
}
Com_DestroyGrowList(&vboSurfaces);
return qtrue;
}