Eevee: Fix sequencer rendering.

Sequencer rendering can use multisample render targets. Be sure to sync
thoses after rendering.

Also disable the sample loop when not needed.

Do note that currently the color correction is broken with the sequencer.

1 files changed, 7 insertions, 2 deletions

diff --git a/source/blender/draw/engines/eevee/eevee_engine.c b/source/blender/draw/engines/eevee/eevee_engine.c
index 059fbf5ba05..b1bfc45037d 100644
--- a/source/blender/draw/engines/eevee/eevee_engine.c
+++ b/source/blender/draw/engines/eevee/eevee_engine.c
@@ -179,9 +179,10 @@ static void eevee_draw_background(void *vedata)
 	/* Sort transparents before the loop. */
 	DRW_pass_sort_shgroup_z(psl->transparent_pass);
 
-	/* Number of iteration: needed for all temporal effect (SSR, TAA)
+	/* Number of iteration: needed for all temporal effect (SSR, volumetrics)
 	 * when using opengl render. */
-	int loop_ct = DRW_state_is_image_render() ? 4 : 1;
+	int loop_ct = (DRW_state_is_image_render() &&
+	               (stl->effects->enabled_effects & (EFFECT_VOLUMETRIC | EFFECT_SSR)) != 0) ? 4 : 1;
 
 	while (loop_ct--) {
 		unsigned int primes[3] = {2, 3, 7};
@@ -333,6 +334,10 @@ static void eevee_draw_background(void *vedata)
 
 	EEVEE_volumes_free_smoke_textures();
 
+	if (DRW_state_is_image_render()) {
+		MULTISAMPLE_SYNC_ENABLE(dfbl);
+	}
+
 	stl->g_data->view_updated = false;
 }