Fix T57689: world nodes / texture not updating for Eevee.

Only do GPU material updates through depsgraph evaluation now. This was
already happening for material, just missing for the world.

source/blender/blenkernel/BKE_world.h

@@ -33,6 +33,7 @@
  *  \author nzc
  */
 
+struct Depsgraph;
 struct Main;
 struct World;
 
@@ -43,5 +44,6 @@ void BKE_world_copy_data(struct Main *bmain, struct World *wrld_dst, const struc
 struct World *BKE_world_copy(struct Main *bmain, const struct World *wrld);
 struct World *BKE_world_localize(struct World *wrld);
 void BKE_world_make_local(struct Main *bmain, struct World *wrld, const bool lib_local);
+void BKE_world_eval(struct Depsgraph *depsgraph, struct World *world);
 
 #endif

source/blender/blenkernel/intern/world.c

@@ -168,3 +168,9 @@ void BKE_world_make_local(Main *bmain, World *wrld, const bool lib_local)
 {
 	BKE_id_make_local_generic(bmain, &wrld->id, true, lib_local);
 }
+
+void BKE_world_eval(struct Depsgraph *depsgraph, World *world)
+{
+	DEG_debug_print_eval(depsgraph, __func__, world->id.name, world);
+	GPU_material_free(&world->gpumaterial);
+}

source/blender/depsgraph/intern/builder/deg_builder_nodes.cc

@@ -975,17 +975,20 @@ void DepsgraphNodeBuilder::build_world(World *world)
 	if (built_map_.checkIsBuiltAndTag(world)) {
 		return;
 	}
-	/* Animation. */
-	build_animdata(&world->id);
-	/* world itself */
+	/* World itself. */
+	add_id_node(&world->id);
+	World *world_cow = get_cow_datablock(world);
+	/* Shading update. */
 	add_operation_node(&world->id,
 	                   DEG_NODE_TYPE_SHADING,
-	                   NULL,
+	                   function_bind(BKE_world_eval,
+	                                 _1,
+	                                 world_cow),
 	                   DEG_OPCODE_WORLD_UPDATE);
-	/* world's nodetree */
-	if (world->nodetree != NULL) {
-		build_nodetree(world->nodetree);
-	}
+	/* Animation. */
+	build_animdata(&world->id);
+	/* World's nodetree. */
+	build_nodetree(world->nodetree);
 }
 
 /* Rigidbody Simulation - Scene Level */

source/blender/depsgraph/intern/builder/deg_builder_relations.cc

@@ -1510,14 +1510,18 @@ void DepsgraphRelationBuilder::build_world(World *world)
 	if (built_map_.checkIsBuiltAndTag(world)) {
 		return;
 	}
+	/* animation */
 	build_animdata(&world->id);
-	/* TODO: other settings? */
 	/* world's nodetree */
 	if (world->nodetree != NULL) {
 		build_nodetree(world->nodetree);
-		ComponentKey ntree_key(&world->nodetree->id, DEG_NODE_TYPE_SHADING);
-		ComponentKey world_key(&world->id, DEG_NODE_TYPE_SHADING);
-		add_relation(ntree_key, world_key, "NTree->World Shading Update");
+		OperationKey ntree_key(&world->nodetree->id,
+		                       DEG_NODE_TYPE_SHADING,
+		                       DEG_OPCODE_MATERIAL_UPDATE);
+		OperationKey world_key(&world->id,
+		                          DEG_NODE_TYPE_SHADING,
+		                          DEG_OPCODE_MATERIAL_UPDATE);
+		add_relation(ntree_key, world_key, "World's NTree");
 		build_nested_nodetree(&world->id, world->nodetree);
 	}
 }

source/blender/depsgraph/intern/eval/deg_eval_flush.cc

@@ -270,7 +270,9 @@ void flush_editors_id_update(Main *bmain,
 		 * TODO: image datablocks do not use COW, so might not be detected
 		 * correctly. */
 		if (deg_copy_on_write_is_expanded(id_cow)) {
-			deg_editors_id_update(update_ctx, id_orig);
+			if (graph->is_active) {
+				deg_editors_id_update(update_ctx, id_orig);
+			}
 			/* ID may need to get its auto-override operations refreshed. */
 			if (ID_IS_STATIC_OVERRIDE_AUTO(id_orig)) {
 				id_orig->tag |= LIB_TAG_OVERRIDESTATIC_AUTOREFRESH;

source/blender/editors/render/render_update.c

@@ -58,8 +58,6 @@
 #include "BKE_scene.h"
 #include "BKE_workspace.h"
 
-#include "GPU_material.h"
-
 #include "RE_engine.h"
 #include "RE_pipeline.h"
 
@@ -73,8 +71,6 @@
 
 #include "render_intern.h"  // own include
 
-extern Material defmaterial;
-
 /***************************** Render Engines ********************************/
 
 void ED_render_scene_update(const DEGEditorUpdateContext *update_ctx, int updated)
@@ -244,22 +240,12 @@ static void material_changed(Main *UNUSED(bmain), Material *ma)
 {
 	/* icons */
 	BKE_icon_changed(BKE_icon_id_ensure(&ma->id));
-
-	/* glsl */
-	if (ma->id.recalc & ID_RECALC) {
-		if (!BLI_listbase_is_empty(&ma->gpumaterial)) {
-			GPU_material_free(&ma->gpumaterial);
-		}
-	}
 }
 
 static void lamp_changed(Main *UNUSED(bmain), Lamp *la)
 {
 	/* icons */
 	BKE_icon_changed(BKE_icon_id_ensure(&la->id));
-
-	if (defmaterial.gpumaterial.first)
-		GPU_material_free(&defmaterial.gpumaterial);
 }
 
 static void texture_changed(Main *bmain, Tex *tex)
@@ -271,15 +257,12 @@ static void texture_changed(Main *bmain, Tex *tex)
 	/* icons */
 	BKE_icon_changed(BKE_icon_id_ensure(&tex->id));
 
-	/* paint overlays */
 	for (scene = bmain->scene.first; scene; scene = scene->id.next) {
+		/* paint overlays */
 		for (view_layer = scene->view_layers.first; view_layer; view_layer = view_layer->next) {
 			BKE_paint_invalidate_overlay_tex(scene, view_layer, tex);
 		}
-	}
-
-	/* find compositing nodes */
-	for (scene = bmain->scene.first; scene; scene = scene->id.next) {
+		/* find compositing nodes */
 		if (scene->use_nodes && scene->nodetree) {
 			for (node = scene->nodetree->nodes.first; node; node = node->next) {
 				if (node->id == &tex->id)
@@ -293,16 +276,6 @@ static void world_changed(Main *UNUSED(bmain), World *wo)
 {
 	/* icons */
 	BKE_icon_changed(BKE_icon_id_ensure(&wo->id));
-
-	/* glsl */
-	if (wo->id.recalc & ID_RECALC) {
-		if (!BLI_listbase_is_empty(&defmaterial.gpumaterial)) {
-			GPU_material_free(&defmaterial.gpumaterial);
-		}
-		if (!BLI_listbase_is_empty(&wo->gpumaterial)) {
-			GPU_material_free(&wo->gpumaterial);
-		}
-	}
 }
 
 static void image_changed(Main *bmain, Image *ima)

source/blender/gpu/intern/gpu_draw.c

@@ -84,8 +84,6 @@
 #  include "smoke_API.h"
 #endif
 
-extern Material defmaterial; /* from material.c */
-
 //* Checking powers of two for images since OpenGL ES requires it */
 #ifdef WITH_DDS
 static bool is_power_of_2_resolution(int w, int h)