Model Renderer: Added "uAlphaLimit" variable to the generic model shader

skyjake · Sep 6, 2015 · 3fae774 · 3fae774
1 parent 3666c37
commit 3fae774
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/doomsday/apps/client/net.dengine.client.pack/renderer.pack/shaders/model.dei b/doomsday/apps/client/net.dengine.client.pack/renderer.pack/shaders/model.dei
@@ -71,6 +71,7 @@ model {
             uniform highp vec4 uAmbientLight;
             uniform highp vec4 uLightIntensities[4];
             uniform highp float uEmission;
+            uniform highp float uAlphaLimit; // alpha test to discard fragments
 
             varying highp vec2 vUV;
             varying highp vec4 vUVBounds[4];
@@ -148,8 +149,10 @@ model {
 
                 highp vec4 emission = uEmission * texture2D(uTex, emissiveUV);
 
-                gl_FragColor.rgb += specular.rgb + (emission.rgb * emission.a);
-                gl_FragColor.a = min(1.0, diffuse.a + specular.a + emission.a);
+                gl_FragColor.rgb += specular.rgb + emission.rgb;
+                gl_FragColor.a = min(1.0, diffuse.a + specular.a);
+
+                if(gl_FragColor.a < uAlphaLimit) discard;
             }"
     }
 }