Compositor: Fix Alpha Over node ignoring emissive colors

It was an issue on Full Frame mode only.
2021-09-14 17:25:47 +02:00 · 2021-09-14 17:25:47 +02:00 · 942c471ce9
parent 257c7753e9
commit 942c471ce9
1 changed files with 2 additions and 1 deletions
--- a/source/blender/compositor/operations/COM_AlphaOverPremultiplyOperation.cc
+++ b/source/blender/compositor/operations/COM_AlphaOverPremultiplyOperation.cc
@ -62,7 +62,8 @@ void AlphaOverPremultiplyOperation::update_memory_buffer_row(PixelCursor &p)
    const float *over_color = p.color2;
    const float value = *p.value;

-    if (over_color[3] <= 0.0f) {
+    /* Zero alpha values should still permit an add of RGB data. */
+    if (over_color[3] < 0.0f) {
      copy_v4_v4(p.out, color1);
    }
    else if (value == 1.0f && over_color[3] >= 1.0f) {