gl renderer: Fix color matrix shader

We *just* computed a un-premultiplied color, maybe we should also use
it.

diff --git a/gsk/resources/glsl/color_matrix.fs.glsl b/gsk/resources/glsl/color_matrix.fs.glsl
index 07875fe0b48d980acbb8eb7398f66876f956f73a..284e0a9e654a5db5a85c07c681a3cbcced627da6 100644 (file)
--- a/gsk/resources/glsl/color_matrix.fs.glsl
+++ b/gsk/resources/glsl/color_matrix.fs.glsl
@@ -11,7 +11,7 @@ void main() {
   if (color.a != 0.0)
     color.rgb /= color.a;
 
-  color = u_color_matrix * diffuse + u_color_offset;
+  color = u_color_matrix * color + u_color_offset;
   color = clamp(color, 0.0f, 1.0f);
 
   color.rgb *= color.a;