- else
- {
- rsurface.vertex3f = rsurface.modelvertex3f;
- rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
- rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
- rsurface.svector3f = rsurface.modelsvector3f;
- rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
- rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
- rsurface.tvector3f = rsurface.modeltvector3f;
- rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
- rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
- rsurface.normal3f = rsurface.modelnormal3f;
- rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
- rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
+ // generate texcoords based on the chosen texcoord source
+ switch(rsurface.texture->tcgen.tcgen)
+ {
+ default:
+ case Q3TCGEN_TEXTURE:
+ rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
+ rsurface.texcoordtexture2f_bufferobject = rsurface.modeltexcoordtexture2f_bufferobject;
+ rsurface.texcoordtexture2f_bufferoffset = rsurface.modeltexcoordtexture2f_bufferoffset;
+ break;
+ case Q3TCGEN_LIGHTMAP:
+ rsurface.texcoordtexture2f = rsurface.modeltexcoordlightmap2f;
+ rsurface.texcoordtexture2f_bufferobject = rsurface.modeltexcoordlightmap2f_bufferobject;
+ rsurface.texcoordtexture2f_bufferoffset = rsurface.modeltexcoordlightmap2f_bufferoffset;
+ break;
+ case Q3TCGEN_VECTOR:
+ for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+ {
+ const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
+ for (j = 0, v1 = rsurface.modelvertex3f + 3 * surface->num_firstvertex, out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;j < surface->num_vertices;j++, v1 += 3, out_tc += 2)
+ {
+ out_tc[0] = DotProduct(v1, rsurface.texture->tcgen.parms);
+ out_tc[1] = DotProduct(v1, rsurface.texture->tcgen.parms + 3);
+ }
+ }
+ rsurface.texcoordtexture2f = rsurface.array_generatedtexcoordtexture2f;
+ rsurface.texcoordtexture2f_bufferobject = 0;
+ rsurface.texcoordtexture2f_bufferoffset = 0;
+ break;
+ case Q3TCGEN_ENVIRONMENT:
+ // make environment reflections using a spheremap
+ for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+ {
+ const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
+ const float *vertex = rsurface.modelvertex3f + 3 * surface->num_firstvertex;
+ const float *normal = rsurface.modelnormal3f + 3 * surface->num_firstvertex;
+ float *out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;
+ for (j = 0;j < surface->num_vertices;j++, vertex += 3, normal += 3, out_tc += 2)
+ {
+ float l, d, eyedir[3];
+ VectorSubtract(rsurface.modelorg, vertex, eyedir);
+ l = 0.5f / VectorLength(eyedir);
+ d = DotProduct(normal, eyedir)*2;
+ out_tc[0] = 0.5f + (normal[1]*d - eyedir[1])*l;
+ out_tc[1] = 0.5f - (normal[2]*d - eyedir[2])*l;
+ }
+ }
+ rsurface.texcoordtexture2f = rsurface.array_generatedtexcoordtexture2f;
+ rsurface.texcoordtexture2f_bufferobject = 0;
+ rsurface.texcoordtexture2f_bufferoffset = 0;
+ break;
+ }
+ // the only tcmod that needs software vertex processing is turbulent, so
+ // check for it here and apply the changes if needed
+ // and we only support that as the first one
+ // (handling a mixture of turbulent and other tcmods would be problematic
+ // without punting it entirely to a software path)
+ if (rsurface.texture->tcmods[0].tcmod == Q3TCMOD_TURBULENT)
+ {
+ amplitude = rsurface.texture->tcmods[0].parms[1];
+ animpos = rsurface.texture->tcmods[0].parms[2] + r_refdef.time * rsurface.texture->tcmods[0].parms[3];
+ for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+ {
+ const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
+ for (j = 0, v1 = rsurface.modelvertex3f + 3 * surface->num_firstvertex, in_tc = rsurface.texcoordtexture2f + 2 * surface->num_firstvertex, out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;j < surface->num_vertices;j++, v1 += 3, in_tc += 2, out_tc += 2)
+ {
+ out_tc[0] = in_tc[0] + amplitude * sin(((v1[0] + v1[2]) * 1.0 / 1024.0f + animpos) * M_PI * 2);
+ out_tc[1] = in_tc[1] + amplitude * sin(((v1[1] ) * 1.0 / 1024.0f + animpos) * M_PI * 2);
+ }
+ }
+ rsurface.texcoordtexture2f = rsurface.array_generatedtexcoordtexture2f;
+ rsurface.texcoordtexture2f_bufferobject = 0;
+ rsurface.texcoordtexture2f_bufferoffset = 0;