int R_IQMLerpTag( orientation_t *tag, iqmData_t *data,
int startTagIndex,
qhandle_t frameModel, int startFrame,
qhandle_t endFrameModel, int endFrame,
float frac, const char *tagName ) {
iqmData_t *startSkeleton, *endSkeleton;
float jointMats[IQM_MAX_JOINTS * 12];
int joint;
char *names = data->names;
// get joint number by reading the joint names
for( joint = 0; joint < data->num_joints; joint++ ) {
if( joint >= startTagIndex && !strcmp( tagName, names ) )
break;
names += strlen( names ) + 1;
}
if( joint >= data->num_joints ) {
return -1;
}
// just checking if tag exists
if( !tag ) {
return joint;
}
startSkeleton = R_GetIQMModelDataByHandle( frameModel, data );
endSkeleton = R_GetIQMModelDataByHandle( endFrameModel, data );
ComputeJointMats( data, startSkeleton, endSkeleton, startFrame, endFrame, frac, jointMats );
tag->axis[0][0] = jointMats[12 * joint + 0];
tag->axis[1][0] = jointMats[12 * joint + 1];
tag->axis[2][0] = jointMats[12 * joint + 2];
tag->origin[0] = jointMats[12 * joint + 3];
tag->axis[0][1] = jointMats[12 * joint + 4];
tag->axis[1][1] = jointMats[12 * joint + 5];
tag->axis[2][1] = jointMats[12 * joint + 6];
tag->origin[1] = jointMats[12 * joint + 7];
tag->axis[0][2] = jointMats[12 * joint + 8];
tag->axis[1][2] = jointMats[12 * joint + 9];
tag->axis[2][2] = jointMats[12 * joint + 10];
tag->origin[2] = jointMats[12 * joint + 11];
return joint;
}
/*
=================
R_AddIQMSurfaces
Add all surfaces of this model
=================
*/
void R_AddIQMSurfaces( trRefEntity_t *ent ) {
iqmData_t *data;
iqmData_t *skeleton;
iqmData_t *oldSkeleton;
srfIQModel_t *surface;
int i, j;
qboolean personalModel;
int cull;
int fogNum;
int cubemapIndex;
shader_t *shader;
skin_t *skin;
skinSurface_t *skinSurf;
data = tr.currentModel->modelData;
surface = data->surfaces;
if ( !data->num_surfaces || !data->num_triangles || !data->num_vertexes ) {
ri.Printf( PRINT_WARNING, "WARNING: Tried to render IQM '%s' with no surfaces\n", tr.currentModel->name );
return;
}
skeleton = R_GetIQMModelDataByHandle( ent->e.frameModel, data );
oldSkeleton = R_GetIQMModelDataByHandle( ent->e.oldframeModel, data );
// don't add mirror only objects if not in a mirror/portal
personalModel = (ent->e.renderfx & RF_ONLY_MIRROR) && !tr.viewParms.isPortal;
if ( ent->e.renderfx & RF_WRAP_FRAMES ) {
ent->e.frame %= skeleton->num_frames;
ent->e.oldframe %= oldSkeleton->num_frames;
}
//
// Validate the frames so there is no chance of a crash.
// This will write directly into the entity structure, so
// when the surfaces are rendered, they don't need to be
// range checked again.
//
if ( (ent->e.frame >= skeleton->num_frames)
|| (ent->e.frame < 0)
|| (ent->e.oldframe >= oldSkeleton->num_frames)
|| (ent->e.oldframe < 0) ) {
ri.Printf( PRINT_DEVELOPER, "R_AddIQMSurfaces: no such frame %d to %d for '%s'\n",
ent->e.oldframe, ent->e.frame,
tr.currentModel->name );
ent->e.frame = 0;
ent->e.oldframe = 0;
}
//
// cull the entire model if merged bounding box of both frames
// is outside the view frustum.
//
cull = R_CullIQM ( skeleton, oldSkeleton, ent );
if ( cull == CULL_OUT ) {
return;
}
//
// set up lighting now that we know we aren't culled
//
if ( !personalModel || r_shadows->integer > 1 ) {
R_SetupEntityLighting( &tr.refdef, ent );
}
//
// see if we are in a fog volume
//
fogNum = R_ComputeIQMFogNum( skeleton, ent );
cubemapIndex = R_CubemapForPoint(ent->e.origin);
for ( i = 0 ; i < data->num_surfaces ; i++ ) {
if(ent->e.customShader)
shader = R_GetShaderByHandle( ent->e.customShader );
else if(ent->e.customSkin > 0 && ent->e.customSkin <= tr.refdef.numSkins)
{
skin = &tr.refdef.skins[ent->e.customSkin - 1];
shader = tr.defaultShader;
for(j = 0 ; j < skin->numSurfaces ; j++)
{
skinSurf = &tr.skinSurfaces[ skin->surfaces[ j ] ];
if (!strcmp(skinSurf->name, surface->name))
{
shader = skinSurf->shader;
break;
}
}
if (shader == tr.nodrawShader) {
surface++;
continue;
}
} else {
shader = surface->shader;
}
// we will add shadows even if the main object isn't visible in the view
// stencil shadows can't do personal models unless I polyhedron clip
if ( !personalModel
&& r_shadows->integer == 2
&& fogNum == 0
&& !(ent->e.renderfx & ( RF_NOSHADOW | RF_DEPTHHACK ) )
&& shader->sort == SS_OPAQUE ) {
R_AddDrawSurf( (void *)surface, tr.shadowShader, 0, 0, 0, 0 );
}
// projection shadows work fine with personal models
if ( r_shadows->integer == 3
&& fogNum == 0
&& (ent->e.renderfx & RF_SHADOW_PLANE )
&& shader->sort == SS_OPAQUE ) {
R_AddDrawSurf( (void *)surface, tr.projectionShadowShader, 0, 0, 0, 0 );
}
if( !personalModel ) {
R_AddEntDrawSurf( ent, (void *)surface, shader, fogNum, 0, 0, cubemapIndex );
}
surface++;
}
}
/*
=================
RB_AddIQMSurfaces
Compute vertices for this model surface
=================
*/
void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
srfIQModel_t *surf = (srfIQModel_t *)surface;
iqmData_t *data = surf->data;
float jointMats[IQM_MAX_JOINTS * 12];
int i;
vec4_t *outXYZ;
uint32_t *outNormal;
#ifdef USE_VERT_TANGENT_SPACE
uint32_t *outTangent;
#endif
vec2_t (*outTexCoord)[2];
vec4_t *outColor;
iqmData_t *skeleton = R_GetIQMModelDataByHandle( backEnd.currentEntity->e.frameModel, data );
iqmData_t *oldSkeleton = R_GetIQMModelDataByHandle( backEnd.currentEntity->e.oldframeModel, data );
int frame = skeleton->num_frames ? backEnd.currentEntity->e.frame % skeleton->num_frames : 0;
int oldframe = oldSkeleton->num_frames ? backEnd.currentEntity->e.oldframe % oldSkeleton->num_frames : 0;
float backlerp = backEnd.currentEntity->e.backlerp;
int *tri;
glIndex_t *ptr;
glIndex_t base;
if ( data != skeleton && data->num_joints != skeleton->num_poses ) {
ri.Printf( PRINT_WARNING, "WARNING: frameModel '%s' for model '%s' has different number of joints\n",
R_GetModelByHandle( backEnd.currentEntity->e.frameModel )->name, R_GetModelByHandle( backEnd.currentEntity->e.hModel )->name );
skeleton = data;
}
if ( data != oldSkeleton && data->num_joints != oldSkeleton->num_poses ) {
ri.Printf( PRINT_WARNING, "WARNING: oldframeModel '%s' for model '%s' has different number of joints\n",
R_GetModelByHandle( backEnd.currentEntity->e.oldframeModel )->name, R_GetModelByHandle( backEnd.currentEntity->e.hModel )->name );
oldSkeleton = data;
}
RB_CHECKOVERFLOW( surf->num_vertexes, surf->num_triangles * 3 );
outXYZ = &tess.xyz[tess.numVertexes];
outNormal = &tess.normal[tess.numVertexes];
#ifdef USE_VERT_TANGENT_SPACE
outTangent = &tess.tangent[tess.numVertexes];
#endif
outTexCoord = &tess.texCoords[tess.numVertexes];
outColor = &tess.vertexColors[tess.numVertexes];
// compute interpolated joint matrices
if ( skeleton->num_poses > 0 ) {
ComputePoseMats( data, skeleton, oldSkeleton, frame, oldframe, backlerp, jointMats );
}
// transform vertexes and fill other data
for( i = 0; i < surf->num_vertexes;
i++, outXYZ++, outNormal++, outTexCoord++, outColor++ ) {
int j, k;
float vtxMat[12];
float nrmMat[9];
int vtx = i + surf->first_vertex;
float blendWeights[4];
int numWeights;
for ( numWeights = 0; numWeights < 4; numWeights++ ) {
if ( data->blendWeightsType == IQM_FLOAT )
blendWeights[numWeights] = data->blendWeights.f[4*vtx + numWeights];
else
blendWeights[numWeights] = (float)data->blendWeights.b[4*vtx + numWeights] / 255.0f;
if ( blendWeights[numWeights] <= 0 )
break;
}
if ( skeleton->num_poses == 0 || numWeights == 0 ) {
// no blend joint, use identity matrix.
Com_Memcpy( vtxMat, identityMatrix, 12 * sizeof (float) );
} else {
// compute the vertex matrix by blending the up to
// four blend weights
Com_Memset( vtxMat, 0, 12 * sizeof (float) );
for( j = 0; j < numWeights; j++ ) {
for( k = 0; k < 12; k++ ) {
vtxMat[k] += blendWeights[j] * jointMats[12*data->blendIndexes[4*vtx + j] + k];
}
}
}
// compute the normal matrix as transpose of the adjoint
// of the vertex matrix
nrmMat[ 0] = vtxMat[ 5]*vtxMat[10] - vtxMat[ 6]*vtxMat[ 9];
nrmMat[ 1] = vtxMat[ 6]*vtxMat[ 8] - vtxMat[ 4]*vtxMat[10];
nrmMat[ 2] = vtxMat[ 4]*vtxMat[ 9] - vtxMat[ 5]*vtxMat[ 8];
nrmMat[ 3] = vtxMat[ 2]*vtxMat[ 9] - vtxMat[ 1]*vtxMat[10];
nrmMat[ 4] = vtxMat[ 0]*vtxMat[10] - vtxMat[ 2]*vtxMat[ 8];
nrmMat[ 5] = vtxMat[ 1]*vtxMat[ 8] - vtxMat[ 0]*vtxMat[ 9];
nrmMat[ 6] = vtxMat[ 1]*vtxMat[ 6] - vtxMat[ 2]*vtxMat[ 5];
nrmMat[ 7] = vtxMat[ 2]*vtxMat[ 4] - vtxMat[ 0]*vtxMat[ 6];
nrmMat[ 8] = vtxMat[ 0]*vtxMat[ 5] - vtxMat[ 1]*vtxMat[ 4];
(*outTexCoord)[0][0] = data->texcoords[2*vtx + 0];
(*outTexCoord)[0][1] = data->texcoords[2*vtx + 1];
(*outTexCoord)[1][0] = (*outTexCoord)[0][0];
(*outTexCoord)[1][1] = (*outTexCoord)[0][1];
(*outXYZ)[0] =
vtxMat[ 0] * data->positions[3*vtx+0] +
vtxMat[ 1] * data->positions[3*vtx+1] +
vtxMat[ 2] * data->positions[3*vtx+2] +
vtxMat[ 3];
(*outXYZ)[1] =
vtxMat[ 4] * data->positions[3*vtx+0] +
vtxMat[ 5] * data->positions[3*vtx+1] +
vtxMat[ 6] * data->positions[3*vtx+2] +
vtxMat[ 7];
(*outXYZ)[2] =
vtxMat[ 8] * data->positions[3*vtx+0] +
vtxMat[ 9] * data->positions[3*vtx+1] +
vtxMat[10] * data->positions[3*vtx+2] +
vtxMat[11];
(*outXYZ)[3] = 1.0f;
{
vec3_t normal;
vec4_t tangent;
normal[0] = DotProduct(&nrmMat[0], &data->normals[3*vtx]);
normal[1] = DotProduct(&nrmMat[3], &data->normals[3*vtx]);
normal[2] = DotProduct(&nrmMat[6], &data->normals[3*vtx]);
*outNormal = R_VboPackNormal(normal);
#ifdef USE_VERT_TANGENT_SPACE
tangent[0] = DotProduct(&nrmMat[0], &data->tangents[4*vtx]);
tangent[1] = DotProduct(&nrmMat[3], &data->tangents[4*vtx]);
tangent[2] = DotProduct(&nrmMat[6], &data->tangents[4*vtx]);
tangent[3] = data->tangents[4*vtx+3];
*outTangent++ = R_VboPackTangent(tangent);
#endif
}
(*outColor)[0] = data->colors[4*vtx+0] / 255.0f;
(*outColor)[1] = data->colors[4*vtx+1] / 255.0f;
(*outColor)[2] = data->colors[4*vtx+2] / 255.0f;
(*outColor)[3] = data->colors[4*vtx+3] / 255.0f;
}
tri = data->triangles + 3 * surf->first_triangle;
ptr = &tess.indexes[tess.numIndexes];
base = tess.numVertexes;
for( i = 0; i < surf->num_triangles; i++ ) {
*ptr++ = base + (*tri++ - surf->first_vertex);
*ptr++ = base + (*tri++ - surf->first_vertex);
*ptr++ = base + (*tri++ - surf->first_vertex);
}
tess.numIndexes += 3 * surf->num_triangles;
tess.numVertexes += surf->num_vertexes;
}
