diff options
Diffstat (limited to 'intern/cycles/render/shader.cpp')
| -rw-r--r-- | intern/cycles/render/shader.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/intern/cycles/render/shader.cpp b/intern/cycles/render/shader.cpp index 86378dfb495..864875361c0 100644 --- a/intern/cycles/render/shader.cpp +++ b/intern/cycles/render/shader.cpp @@ -33,7 +33,9 @@ CCL_NAMESPACE_BEGIN +thread_mutex ShaderManager::lookup_table_mutex; vector<float> ShaderManager::beckmann_table; +bool ShaderManager::beckmann_table_ready = false; /* Beckmann sampling precomputed table, see bsdf_microfacet.h */ @@ -482,10 +484,11 @@ void ShaderManager::device_update_common(Device *device, /* beckmann lookup table */ if(beckmann_table_offset == TABLE_OFFSET_INVALID) { - if(beckmann_table.size() == 0) { + if(!beckmann_table_ready) { thread_scoped_lock lock(lookup_table_mutex); - if(beckmann_table.size() == 0) { + if(!beckmann_table_ready) { beckmann_table_build(beckmann_table); + beckmann_table_ready = true; } } beckmann_table_offset = scene->lookup_tables->add_table(dscene, beckmann_table); |