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-rw-r--r--src/video_core/vertex_shader.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/video_core/vertex_shader.cpp b/src/video_core/vertex_shader.cpp
index e31bc3bc7..bed5081a0 100644
--- a/src/video_core/vertex_shader.cpp
+++ b/src/video_core/vertex_shader.cpp
@@ -469,6 +469,10 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
// Setup output register table
OutputVertex ret;
+ // Zero output so that attributes which aren't output won't have denormals in them, which will
+ // slow us down later.
+ memset(&ret, 0, sizeof(ret));
+
for (int i = 0; i < 7; ++i) {
const auto& output_register_map = registers.vs_output_attributes[i];