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 * ) buffer;
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];
// skip MD5Version indent string
COM_ParseExt2(&buf_p, qfalse);
// check version
token = COM_ParseExt2(&buf_p, qfalse);
version = atoi(token);
if (version != MD5_VERSION)
{
Ren_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_ParseExt2(&buf_p, qtrue);
token = COM_ParseExt2(&buf_p, qtrue);
// Ren_Print("%s\n", token);
// parse numJoints <number>
token = COM_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "numJoints"))
{
Ren_Warning("R_LoadMD5: expected 'numJoints' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
md5->numBones = atoi(token);
// parse numMeshes <number>
token = COM_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "numMeshes"))
{
Ren_Warning("R_LoadMD5: expected 'numMeshes' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
md5->numSurfaces = atoi(token);
//Ren_Print("R_LoadMD5: '%s' has %i surfaces\n", modName, md5->numSurfaces);
if (md5->numBones < 1)
{
Ren_Warning("R_LoadMD5: '%s' has no bones\n", modName);
return qfalse;
}
if (md5->numBones > MAX_BONES)
{
Ren_Warning("R_LoadMD5: '%s' has more than %i bones (%i)\n", modName, MAX_BONES, md5->numBones);
return qfalse;
}
//Ren_Print("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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "joints"))
{
Ren_Warning("R_LoadMD5: expected 'joints' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, "{"))
{
Ren_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_ParseExt2(&buf_p, qtrue);
Q_strncpyz(bone->name, token, sizeof(bone->name));
//Ren_Print("R_LoadMD5: '%s' has bone '%s'\n", modName, bone->name);
token = COM_ParseExt2(&buf_p, qfalse);
bone->parentIndex = atoi(token);
//Ren_Print("R_LoadMD5: '%s' has bone '%s' with parent index %i\n", modName, bone->name, bone->parentIndex);
if (bone->parentIndex >= md5->numBones)
{
Ren_Drop("R_LoadMD5: '%s' has bone '%s' with bad parent index %i while numBones is %i", modName,
bone->name, bone->parentIndex, md5->numBones);
}
// skip (
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, "("))
{
Ren_Warning("R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for (j = 0; j < 3; j++)
{
token = COM_ParseExt2(&buf_p, qfalse);
boneOrigin[j] = atof(token);
}
// skip )
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, ")"))
{
Ren_Warning("R_LoadMD5: expected ')' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
// skip (
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, "("))
{
Ren_Warning("R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for (j = 0; j < 3; j++)
{
token = COM_ParseExt2(&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_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, ")"))
{
Ren_Warning("R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
}
// parse }
token = COM_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "}"))
{
Ren_Warning("R_LoadMD5: expected '}' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
// parse all the surfaces
if (md5->numSurfaces < 1)
{
Ren_Warning("R_LoadMD5: '%s' has no surfaces\n", modName);
return qfalse;
}
//Ren_Print("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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "mesh"))
{
Ren_Warning("R_LoadMD5: expected 'mesh' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, "{"))
{
Ren_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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "shader"))
{
Ren_Warning("R_LoadMD5: expected 'shader' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
Q_strncpyz(surf->shader, token, sizeof(surf->shader));
//Ren_Print("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);
//Ren_Print("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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "numVerts"))
{
Ren_Warning("R_LoadMD5: expected 'numVerts' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
surf->numVerts = atoi(token);
if (surf->numVerts > SHADER_MAX_VERTEXES)
{
Ren_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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "vert"))
{
Ren_Warning("R_LoadMD5: expected 'vert' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
COM_ParseExt2(&buf_p, qfalse);
// skip (
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, "("))
{
Ren_Warning("R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for (k = 0; k < 2; k++)
{
token = COM_ParseExt2(&buf_p, qfalse);
v->texCoords[k] = atof(token);
}
// skip )
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, ")"))
{
Ren_Warning("R_LoadMD5: expected ')' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
v->firstWeight = atoi(token);
token = COM_ParseExt2(&buf_p, qfalse);
v->numWeights = atoi(token);
if (v->numWeights > MAX_WEIGHTS)
{
Ren_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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "numTris"))
{
Ren_Warning("R_LoadMD5: expected 'numTris' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&buf_p, qfalse);
surf->numTriangles = atoi(token);
if (surf->numTriangles > SHADER_MAX_TRIANGLES)
{
Ren_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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "tri"))
{
Ren_Warning("R_LoadMD5: expected 'tri' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
COM_ParseExt2(&buf_p, qfalse);
for (k = 0; k < 3; k++)
{
token = COM_ParseExt2(&buf_p, qfalse);
tri->indexes[k] = atoi(token);
}
}
// parse numWeights <number>
token = COM_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "numWeights"))
{
Ren_Warning("R_LoadMD5: expected 'numWeights' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
token = COM_ParseExt2(&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_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "weight"))
{
Ren_Warning("R_LoadMD5: expected 'weight' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
COM_ParseExt2(&buf_p, qfalse);
token = COM_ParseExt2(&buf_p, qfalse);
weight->boneIndex = atoi(token);
token = COM_ParseExt2(&buf_p, qfalse);
weight->boneWeight = atof(token);
// skip (
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, "("))
{
Ren_Warning("R_LoadMD5: expected '(' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
for (k = 0; k < 3; k++)
{
token = COM_ParseExt2(&buf_p, qfalse);
weight->offset[k] = atof(token);
}
// skip )
token = COM_ParseExt2(&buf_p, qfalse);
if (Q_stricmp(token, ")"))
{
Ren_Warning("R_LoadMD5: expected ')' found '%s' in model '%s'\n", token, modName);
return qfalse;
}
}
// parse }
token = COM_ParseExt2(&buf_p, qtrue);
if (Q_stricmp(token, "}"))
{
Ren_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);
//Ren_Print("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)
{
Ren_Warning("R_LoadMD5: could not add triangles to a remaining VBO surfaces for model '%s'\n", modName);
Com_DestroyGrowList(&vboTriangles);
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;
}
/*
=================
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;
md5Triangle_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;
buf_p = ( char * ) buffer;
// skip MD5Version indent string
COM_ParseExt2( &buf_p, qfalse );
// check version
token = COM_ParseExt2( &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->model.md5 = ri.Hunk_Alloc( sizeof( md5Model_t ), h_low );
// skip commandline <arguments string>
token = COM_ParseExt2( &buf_p, qtrue );
token = COM_ParseExt2( &buf_p, qtrue );
// ri.Printf(PRINT_ALL, "%s\n", token);
// parse numJoints <number>
token = COM_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
md5->numBones = atoi( token );
// parse numMeshes <number>
token = COM_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
boneOrigin[ j ] = atof( token );
}
// skip )
token = COM_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &buf_p, qtrue );
if ( Q_stricmp( token, "shader" ) )
{
Q_strncpyz( surf->shader, "<default>", sizeof( surf->shader ) );
surf->shaderIndex = 0;
}
else
{
token = COM_ParseExt2( &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, LIGHTMAP_NONE, qtrue );
if ( sh->defaultShader )
{
surf->shaderIndex = 0;
}
else
{
surf->shaderIndex = sh->index;
}
token = COM_ParseExt2( &buf_p, qtrue );
}
// parse numVerts <number>
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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
// skip (
token = COM_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
v->texCoords[ k ] = atof( token );
}
// skip )
token = COM_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
v->firstWeight = atoi( token );
token = COM_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
for ( k = 0; k < 3; k++ )
{
token = COM_ParseExt2( &buf_p, qfalse );
tri->indexes[ k ] = atoi( token );
}
}
// parse numWeights <number>
token = COM_ParseExt2( &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_ParseExt2( &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_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
token = COM_ParseExt2( &buf_p, qfalse );
weight->boneIndex = atoi( token );
token = COM_ParseExt2( &buf_p, qfalse );
weight->boneWeight = atof( token );
// skip (
token = COM_ParseExt2( &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_ParseExt2( &buf_p, qfalse );
weight->offset[ k ] = atof( token );
}
// skip )
token = COM_ParseExt2( &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_ParseExt2( &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 normals
{
const float *v0, *v1, *v2;
const float *t0, *t1, *t2;
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;
R_CalcNormalForTriangle( normal, v0, v1, v2 );
for ( k = 0; k < 3; k++ )
{
float *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->normal );
}
}
#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
}
return qtrue;
}
