Texturing: texture and 3d view draw type changes, these should only have any

effect for a render engine using new shading nodes. In short:

* No longer uses images assigned to faces in the uv layer, rather the active
  image texture node is what is edited/painted/drawn.
* Textured draw type now shows the active image texture node, with solid
  lighting.
* Material draw mode shows GLSL shader of a simplified material node tree,
  using solid lighting.
* Textures for modifiers, brushes, etc, are now available from a dropdown in
  the texture tab in the properties editor. These do not use new shading nodes
  yet.

http://wiki.blender.org/index.php/Dev:2.6/Source/Render/TextureWorkflow

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/editors/space_node/node_edit.c b/source/blender/editors/space_node/node_edit.c
index a1b705610f4..23855ff24e1 100644
--- a/source/blender/editors/space_node/node_edit.c
+++ b/source/blender/editors/space_node/node_edit.c
@@ -90,6 +90,8 @@
 
 #include "RNA_enum_types.h"
 
+#include "GPU_material.h"
+
 #include "node_intern.h"
 
 static EnumPropertyItem socket_in_out_items[] = {
@@ -598,6 +600,8 @@ static int has_nodetree(bNodeTree *ntree, bNodeTree *lookup)
 
 void ED_node_set_active(Main *bmain, bNodeTree *ntree, bNode *node)
 {
+	int was_active_texture = (node->flag & NODE_ACTIVE_TEXTURE);
+
 	nodeSetActive(ntree, node);
 	
 	if(node->type!=NODE_GROUP) {
@@ -621,6 +625,15 @@ void ED_node_set_active(Main *bmain, bNodeTree *ntree, bNode *node)
 					ED_node_generic_update(bmain, ntree, node);
 			}
 
+			/* if active texture changed, free glsl materials */
+			if((node->flag & NODE_ACTIVE_TEXTURE) && !was_active_texture) {
+				Material *ma;
+
+				for(ma=bmain->mat.first; ma; ma=ma->id.next)
+					if(ma->nodetree && ma->use_nodes && has_nodetree(ma->nodetree, ntree))
+						GPU_material_free(ma);
+			}
+
 			WM_main_add_notifier(NC_MATERIAL|ND_NODES, node->id);
 		}
 		else if(ntree->type==NTREE_COMPOSIT) {