diff options
Diffstat (limited to 'source/blender/blenkernel/intern/subsurf_ccg.c')
| -rw-r--r-- | source/blender/blenkernel/intern/subsurf_ccg.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/subsurf_ccg.c b/source/blender/blenkernel/intern/subsurf_ccg.c index d8fabcbea7a..46c52b76c9e 100644 --- a/source/blender/blenkernel/intern/subsurf_ccg.c +++ b/source/blender/blenkernel/intern/subsurf_ccg.c @@ -951,6 +951,44 @@ static void ccgDM_getFinalFace(DerivedMesh *dm, int faceNum, MFace *mf) else mf->flag = ME_SMOOTH; } +/* Translate GridHidden into the ME_HIDE flag for MVerts. Assumes + vertices are in the order output by ccgDM_copyFinalVertArray. */ +void subsurf_copy_grid_hidden(DerivedMesh *dm, const MPoly *mpoly, + MVert *mvert, const MDisps *mdisps) +{ + CCGDerivedMesh *ccgdm = (CCGDerivedMesh*)dm; + CCGSubSurf *ss = ccgdm->ss; + int level = ccgSubSurf_getSubdivisionLevels(ss); + int gridSize = ccgSubSurf_getGridSize(ss); + int edgeSize = ccgSubSurf_getEdgeSize(ss); + int totface = ccgSubSurf_getNumFaces(ss); + int i, j, x, y; + + for(i = 0; i < totface; i++) { + CCGFace *f = ccgdm->faceMap[i].face; + + for(j = 0; j < mpoly[i].totloop; j++) { + const MDisps *md = &mdisps[mpoly[i].loopstart + j]; + int hidden_gridsize = ccg_gridsize(md->level); + int factor = ccg_factor(level, md->level); + + if(!md->hidden) + continue; + + for(y = 0; y < gridSize; y++) { + for(x = 0; x < gridSize; x++) { + int vndx, offset; + + vndx = getFaceIndex(ss, f, j, x, y, edgeSize, gridSize); + offset = (y*factor) * hidden_gridsize + (x*factor); + if(BLI_BITMAP_GET(md->hidden, offset)) + mvert[vndx].flag |= ME_HIDE; + } + } + } + } +} + static void ccgDM_copyFinalVertArray(DerivedMesh *dm, MVert *mvert) { CCGDerivedMesh *ccgdm = (CCGDerivedMesh*) dm; |