Fix T67033 EEVEE: Random Flickering Materials

This was a read after free error. This only fix the undefined behavior.
The result is still not correct in certain cases (see T67226).

We want to include this for 2.80

1 files changed, 6 insertions, 3 deletions

diff --git a/source/blender/draw/engines/eevee/eevee_materials.c b/source/blender/draw/engines/eevee/eevee_materials.c
index f5f3a7a70e3..61da9e21cc8 100644
--- a/source/blender/draw/engines/eevee/eevee_materials.c
+++ b/source/blender/draw/engines/eevee/eevee_materials.c
@@ -1659,14 +1659,17 @@ void EEVEE_materials_cache_populate(EEVEE_Data *vedata,
           char *name = auto_layer_names;
           for (int j = 0; j < auto_layer_count; ++j) {
             /* TODO don't add these uniform when not needed (default pass shaders). */
+            /* FIXME: This is broken, as it overrides any autolayers srgb bool of the previous mesh
+             * that shares the same material.  */
             if (shgrp_array[i]) {
-              DRW_shgroup_uniform_bool(shgrp_array[i], name, &auto_layer_is_srgb[j], 1);
+              DRW_shgroup_uniform_bool_copy(shgrp_array[i], name, auto_layer_is_srgb[j]);
             }
             if (shgrp_depth_array[i]) {
-              DRW_shgroup_uniform_bool(shgrp_depth_array[i], name, &auto_layer_is_srgb[j], 1);
+              DRW_shgroup_uniform_bool_copy(shgrp_depth_array[i], name, auto_layer_is_srgb[j]);
             }
             if (shgrp_depth_clip_array[i]) {
-              DRW_shgroup_uniform_bool(shgrp_depth_clip_array[i], name, &auto_layer_is_srgb[j], 1);
+              DRW_shgroup_uniform_bool_copy(
+                  shgrp_depth_clip_array[i], name, auto_layer_is_srgb[j]);
             }
             /* Go to next layer name. */
             while (*name != '\0') {