diff options
Diffstat (limited to 'spirv_glsl.cpp')
| -rw-r--r-- | spirv_glsl.cpp | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/spirv_glsl.cpp b/spirv_glsl.cpp index 50cc79ab..21525f5a 100644 --- a/spirv_glsl.cpp +++ b/spirv_glsl.cpp @@ -6792,8 +6792,21 @@ string CompilerGLSL::builtin_to_glsl(BuiltIn builtin, StorageClass storage) return "gl_VertexID"; case BuiltInInstanceId: if (options.vulkan_semantics) - SPIRV_CROSS_THROW( - "Cannot implement gl_InstanceID in Vulkan GLSL. This shader was created with GL semantics."); + { + auto model = get_entry_point().model; + switch (model) + { + case spv::ExecutionModelIntersectionKHR: + case spv::ExecutionModelAnyHitKHR: + case spv::ExecutionModelClosestHitKHR: + // gl_InstanceID is allowed in these shaders. + break; + + default: + SPIRV_CROSS_THROW( + "Cannot implement gl_InstanceID in Vulkan GLSL. This shader was created with GL semantics."); + } + } return "gl_InstanceID"; case BuiltInVertexIndex: if (options.vulkan_semantics) |