[Bf-blender-cvs] [8c4a7593f21] blender2.8: EEVEE: Fix unpremultiplied alpha in render result
Clément Foucault
noreply at git.blender.org
Mon Oct 8 17:20:22 CEST 2018
Commit: 8c4a7593f2189a57d348f4c3caf9fc1e3d552059
Author: Clément Foucault
Date: Mon Oct 8 17:07:09 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB8c4a7593f2189a57d348f4c3caf9fc1e3d552059
EEVEE: Fix unpremultiplied alpha in render result
Fix T57102
===================================================================
M source/blender/draw/engines/eevee/eevee_render.c
===================================================================
diff --git a/source/blender/draw/engines/eevee/eevee_render.c b/source/blender/draw/engines/eevee/eevee_render.c
index 117d48e2dc5..000649f42ac 100644
--- a/source/blender/draw/engines/eevee/eevee_render.c
+++ b/source/blender/draw/engines/eevee/eevee_render.c
@@ -191,6 +191,12 @@ static void eevee_render_result_combined(
rect->xmin, rect->ymin,
BLI_rcti_size_x(rect), BLI_rcti_size_y(rect),
4, 0, rp->rect);
+
+ /* Premult alpha */
+ int pixels_len = BLI_rcti_size_x(rect) * BLI_rcti_size_y(rect);
+ for (int i = 0; i < pixels_len * 4; i += 4) {
+ mul_v3_fl(rp->rect + i, rp->rect[i + 3]);
+ }
}
static void eevee_render_result_subsurface(
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