diff options
| author | Sergey Sharybin <sergey.vfx@gmail.com> | 2016-02-25 17:12:11 +0300 |
|---|---|---|
| committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2016-03-25 15:42:13 +0300 |
| commit | 0e47e0cc9e9b19a30717042d97cb3b8fb50132ff (patch) | |
| tree | e735d1d52faf96df09e292e5338f4a4af1499de3 /intern/cycles/bvh/bvh.cpp | |
| parent | 712a2579944fb9ee00fe3c6c34f07f2800361396 (diff) | |
Cycles: Use dedicated BVH for subsurface ray casting
This commit makes it so casting subsurface rays will totally ignore all
the BVH nodes and primitives which do not belong to a current object,
making it much simpler traversal code and reduces number of intersection
tests.
Reviewers: brecht, juicyfruit, dingto, lukasstockner97
Differential Revision: https://developer.blender.org/D1823
Diffstat (limited to 'intern/cycles/bvh/bvh.cpp')
| -rw-r--r-- | intern/cycles/bvh/bvh.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/intern/cycles/bvh/bvh.cpp b/intern/cycles/bvh/bvh.cpp index 4a5f8b1bda6..f78ad3e9ce2 100644 --- a/intern/cycles/bvh/bvh.cpp +++ b/intern/cycles/bvh/bvh.cpp @@ -233,7 +233,7 @@ void BVH::pack_instances(size_t nodes_size, size_t leaf_nodes_size) Mesh *mesh = ob->mesh; BVH *bvh = mesh->bvh; - if(!mesh->transform_applied) { + if(mesh->need_build_bvh()) { if(mesh_map.find(mesh) == mesh_map.end()) { prim_index_size += bvh->pack.prim_index.size(); tri_woop_size += bvh->pack.tri_woop.size(); @@ -268,9 +268,10 @@ void BVH::pack_instances(size_t nodes_size, size_t leaf_nodes_size) foreach(Object *ob, objects) { Mesh *mesh = ob->mesh; - /* if mesh transform is applied, that means it's already in the top - * level BVH, and we don't need to merge it in */ - if(mesh->transform_applied) { + /* We assume that if mesh doesn't need own BVH it was already included + * into a top-level BVH and no packing here is needed. + */ + if(!mesh->need_build_bvh()) { pack.object_node[object_offset++] = 0; continue; } |