Merge pull request #9167 from vonchenplus/tess

video_core: Fix few issues in Tess stage

2 files changed, 3 insertions, 1 deletions

diff --git a/src/video_core/renderer_opengl/gl_shader_cache.cpp b/src/video_core/renderer_opengl/gl_shader_cache.cpp
index 4221c2774..3fe04a115 100644
--- a/src/video_core/renderer_opengl/gl_shader_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_cache.cpp
@@ -76,7 +76,8 @@ Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsPipelineKey& key,
         }
         break;
     case Shader::Stage::TessellationEval:
-        info.tess_clockwise = key.tessellation_clockwise != 0;
+        // Flip the face, as OpenGL's drawing is flipped.
+        info.tess_clockwise = key.tessellation_clockwise == 0;
         info.tess_primitive = [&key] {
             switch (key.tessellation_primitive) {
             case Maxwell::Tessellation::DomainType::Isolines:
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index e216b90d9..d4b0a542a 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -166,6 +166,7 @@ Shader::RuntimeInfo MakeRuntimeInfo(std::span<const Shader::IR::Program> program
         }
         break;
     case Shader::Stage::TessellationEval:
+        info.tess_clockwise = key.state.tessellation_clockwise != 0;
         info.tess_primitive = [&key] {
             const u32 raw{key.state.tessellation_primitive.Value()};
             switch (static_cast<Maxwell::Tessellation::DomainType>(raw)) {