#1527 Improve performance on Apple silicon (#1632)

1 files changed, 1 insertions, 1 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl b/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl
index 5f598f84a7..5c79fd7315 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl
@@ -57,7 +57,7 @@ void main()
    
     outColor.a = 0.0; // yes, downstream atmospherics 
     
-    frag_data[0] = outColor;
+    frag_data[0] = max(outColor, vec4(0));
     frag_data[1] = vec4(0.0,0.0,0.0,-1.0);
     vec3 nvn = normalize(vary_normal);
     frag_data[2] = vec4(nvn.xyz, GBUFFER_FLAG_HAS_ATMOS);