shader: Implement fine derivates constant propagation

1 files changed, 3 insertions, 0 deletions

diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.cpp b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
index 9ec970706..c4d5874ca 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
@@ -341,6 +341,9 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct
     if (!ctx.profile.xfb_varyings.empty()) {
         ctx.AddCapability(spv::Capability::TransformFeedback);
     }
+    if (info.uses_derivates) {
+        ctx.AddCapability(spv::Capability::DerivativeControl);
+    }
     // TODO: Track this usage
     ctx.AddCapability(spv::Capability::ImageGatherExtended);
     ctx.AddCapability(spv::Capability::ImageQuery);