diff options
Diffstat (limited to 'source/blender/draw/intern/draw_cache_impl_volume.c')
| -rw-r--r-- | source/blender/draw/intern/draw_cache_impl_volume.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_cache_impl_volume.c b/source/blender/draw/intern/draw_cache_impl_volume.c index e39c4976e38..7b03070e32b 100644 --- a/source/blender/draw/intern/draw_cache_impl_volume.c +++ b/source/blender/draw/intern/draw_cache_impl_volume.c @@ -62,6 +62,9 @@ typedef struct VolumeBatchCache { GPUBatch *batch; } face_wire; + /* Surface for selection */ + GPUBatch *selection_surface; + /* settings to determine if cache is invalid */ bool is_dirty; } VolumeBatchCache; @@ -132,6 +135,7 @@ static void volume_batch_cache_clear(Volume *volume) GPU_VERTBUF_DISCARD_SAFE(cache->face_wire.pos_nor_in_order); GPU_BATCH_DISCARD_SAFE(cache->face_wire.batch); + GPU_BATCH_DISCARD_SAFE(cache->selection_surface); } void DRW_volume_batch_cache_free(Volume *volume) @@ -209,6 +213,49 @@ GPUBatch *DRW_volume_batch_cache_get_wireframes_face(Volume *volume) return cache->face_wire.batch; } +static void drw_volume_selection_surface_cb( + void *userdata, float (*verts)[3], int (*tris)[3], int totvert, int tottris) +{ + Volume *volume = userdata; + VolumeBatchCache *cache = volume->batch_cache; + + static GPUVertFormat format = {0}; + static uint pos_id; + if (format.attr_len == 0) { + pos_id = GPU_vertformat_attr_add(&format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT); + } + + /* Create vertex buffer. */ + GPUVertBuf *vbo_surface = GPU_vertbuf_create_with_format(&format); + GPU_vertbuf_data_alloc(vbo_surface, totvert); + GPU_vertbuf_attr_fill(vbo_surface, pos_id, verts); + + /* Create index buffer. */ + GPUIndexBufBuilder elb; + GPU_indexbuf_init(&elb, GPU_PRIM_TRIS, tottris, totvert); + for (int i = 0; i < tottris; i++) { + GPU_indexbuf_add_tri_verts(&elb, UNPACK3(tris[i])); + } + GPUIndexBuf *ibo_surface = GPU_indexbuf_build(&elb); + + cache->selection_surface = GPU_batch_create_ex( + GPU_PRIM_TRIS, vbo_surface, ibo_surface, GPU_BATCH_OWNS_VBO | GPU_BATCH_OWNS_INDEX); +} + +GPUBatch *DRW_volume_batch_cache_get_selection_surface(Volume *volume) +{ + VolumeBatchCache *cache = volume_batch_cache_get(volume); + if (cache->selection_surface == NULL) { + VolumeGrid *volume_grid = BKE_volume_grid_active_get(volume); + if (volume_grid == NULL) { + return NULL; + } + BKE_volume_grid_selection_surface( + volume, volume_grid, drw_volume_selection_surface_cb, volume); + } + return cache->selection_surface; +} + static DRWVolumeGrid *volume_grid_cache_get(Volume *volume, VolumeGrid *grid, VolumeBatchCache *cache) |