🔧 Fix straight alpha

2022-05-08 13:56:21 +02:00
parent a28e406da4
commit 6555a8f02c
1 changed files with 3 additions and 4 deletions
@@ -206,10 +206,9 @@ if (utils.isInShellProcess()) {
        // Assemble the final alpha value.
        float mask = tbMask * lrMask * ffMask;

-        vec4 windowColor = texture2D(uTexture, cogl_tex_coord_in[0].st);
-        windowColor.rgb = mix(windowColor.rgb, uColor * windowColor.a, smoothstep(0, 1, progress));
-
-        cogl_color_out = windowColor * mask;
+        cogl_color_out = texture2D(uTexture, cogl_tex_coord_in[0].st);
+        cogl_color_out.rgb = mix(cogl_color_out.rgb, uColor * cogl_color_out.a, smoothstep(0, 1, progress));
+        cogl_color_out.a *= mask;

        // These are pretty useful for understanding how this works.
        // cogl_color_out = vec4(vec3(tbMask), 1);