[Bf-blender-cvs] [84fc0862543] master: Fix T98919: Eevee unlinked aov output nodes don't render.

[Jeroen Bakker]

Commit: 84fc08625431e2cbd1c495eebed11e42cf9b6901
Author: Jeroen Bakker
Date:   Tue Jun 21 09:45:40 2022 +0200
Branches: master
https://developer.blender.org/rB84fc08625431e2cbd1c495eebed11e42cf9b6901

Fix T98919: Eevee unlinked aov output nodes don't render.

Eevee rendered an empty image for aov nodes that weren't linked to
any other nodes. When connected the result was OK. The root cause was
that the AOV nodes were not marked as output node and pruned when not
connected to any other nodes. The pruning process is there to reduce
the complexity of the GLSL and improve compilation time and
execution time.

===================================================================

M	source/blender/nodes/shader/node_shader_tree.cc

===================================================================

diff --git a/source/blender/nodes/shader/node_shader_tree.cc b/source/blender/nodes/shader/node_shader_tree.cc
index f107ec73c60..24558e4b32b 100644
--- a/source/blender/nodes/shader/node_shader_tree.cc
+++ b/source/blender/nodes/shader/node_shader_tree.cc
@@ -1007,6 +1007,7 @@ static void ntree_shader_pruned_unused(bNodeTree *ntree, bNode *output_node)
 
   LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_OUTPUT_AOV) {
+      node->tmp_flag = 1;
       nodeChainIterBackwards(ntree, node, ntree_branch_node_tag, nullptr, 0);
     }
   }