Fix for bug #8555: geometry node front/bake was broken.

Fix for bug #7418: texture ipo's didn't show for textures in node materials.
Fix for part of bug #6758: node materials in other node materials could
miss texture coordinates.

source/blender/blenkernel/intern/material.c

@@ -633,9 +633,7 @@ static void do_init_render_material(Material *ma, int r_mode, float *amb)
 	
 	if(ma->flarec==0) ma->flarec= 1;
 
-	/* add all texcoflags from mtex */
-	ma->texco= 0;
-	ma->mapto= 0;
+	/* add all texcoflags from mtex, texco and mapto were cleared in advance */
 	for(a=0; a<MAX_MTEX; a++) {
 		
 		/* separate tex switching */
@@ -730,6 +728,16 @@ void init_render_materials(int r_mode, float *amb)
 {
 	Material *ma;
 	
+	/* clear these flags before going over materials, to make sure they
+	 * are cleared only once, otherwise node materials contained in other
+	 * node materials can go wrong */
+	for(ma= G.main->mat.first; ma; ma= ma->id.next) {
+		if(ma->id.us) {
+			ma->texco= 0;
+			ma->mapto= 0;
+		}
+	}
+
 	/* two steps, first initialize, then or the flags for layers */
 	for(ma= G.main->mat.first; ma; ma= ma->id.next) {
 		/* is_used flag comes back in convertblender.c */

source/blender/blenkernel/intern/node.c

@@ -1356,11 +1356,21 @@ bNode *nodeGetActiveID(bNodeTree *ntree, short idtype)
 	bNode *node;
 	
 	if(ntree==NULL) return NULL;
+
+	/* check for group edit */
+    for(node= ntree->nodes.first; node; node= node->next)
+		if(node->flag & NODE_GROUP_EDIT)
+			break;
+
+	if(node)
+		ntree= (bNodeTree*)node->id;
 	
+	/* now find active node with this id */
 	for(node= ntree->nodes.first; node; node= node->next)
 		if(node->id && GS(node->id->name)==idtype)
 			if(node->flag & NODE_ACTIVE_ID)
 				break;
+
 	return node;
 }
 

source/blender/blenkernel/intern/texture.c

@@ -55,6 +55,7 @@
 #include "DNA_image_types.h"
 #include "DNA_world_types.h"
 #include "DNA_brush_types.h"
+#include "DNA_node_types.h"
 
 #include "IMB_imbuf_types.h"
 #include "IMB_imbuf.h"
@@ -75,6 +76,7 @@
 #include "BKE_icons.h"
 #include "BKE_ipo.h"
 #include "BKE_brush.h"
+#include "BKE_node.h"
 
 
 /* ------------------------------------------------------------------------- */
@@ -729,6 +731,7 @@ Tex *give_current_texture(Object *ob, int act)
 	Lamp *la = 0;
 	MTex *mtex = 0;
 	Tex *tex = 0;
+	bNode *node;
 	
 	if(ob==0) return 0;
 	if(ob->totcol==0) return 0;
@@ -739,7 +742,6 @@ Tex *give_current_texture(Object *ob, int act)
 			mtex= la->mtex[(int)(la->texact)];
 			if(mtex) tex= mtex->tex;
 		}
-		else tex= 0;
 	} else {
 		if(act>ob->totcol) act= ob->totcol;
 		else if(act==0) act= 1;
@@ -752,13 +754,25 @@ Tex *give_current_texture(Object *ob, int act)
 			
 			if(matarar && *matarar) ma= (*matarar)[act-1];
 			else ma= 0;
-			
+		}
+
+		if(ma && ma->use_nodes && ma->nodetree) {
+			node= nodeGetActiveID(ma->nodetree, ID_TE);
+
+			if(node) {
+				tex= (Tex *)node->id;
+				ma= NULL;
+			}
+			else {
+				node= nodeGetActiveID(ma->nodetree, ID_MA);
+				if(node)
+					ma= (Material*)node->id;
+			}
 		}
 		if(ma) {
 			mtex= ma->mtex[(int)(ma->texact)];
 			if(mtex) tex= mtex->tex;
 		}
-		else tex= 0;
 	}
 	
 	return tex;

source/blender/render/intern/include/rendercore.h

@@ -40,8 +40,8 @@
 
 /* vector defines */
 
-#define CROSS(dest, a, b)		dest[0]= a[1] * b[2] - a[2] * b[1]; dest[1]= a[2] * b[0] - a[0] * b[2]; dest[2]= a[0] * b[1] - a[1] * b[0]
-#define VECMUL(dest, f)			dest[0]*= f; dest[1]*= f; dest[2]*= f
+#define CROSS(dest, a, b)		{ dest[0]= a[1] * b[2] - a[2] * b[1]; dest[1]= a[2] * b[0] - a[0] * b[2]; dest[2]= a[0] * b[1] - a[1] * b[0]; }
+#define VECMUL(dest, f)			{ dest[0]*= f; dest[1]*= f; dest[2]*= f; }
 
 struct HaloRen;
 struct ShadeInput;

source/blender/src/editnode.c

@@ -1138,16 +1138,7 @@ void node_rename(SpaceNode *snode)
 /* used in buttons to check context, also checks for edited groups */
 bNode *editnode_get_active_idnode(bNodeTree *ntree, short id_code)
 {
-	bNode *node;
-	
-	/* check for edited group */
-	for(node= ntree->nodes.first; node; node= node->next)
-		if(node->flag & NODE_GROUP_EDIT)
-			break;
-	if(node)
-		return nodeGetActiveID((bNodeTree *)node->id, id_code);
-	else
-		return nodeGetActiveID(ntree, id_code);
+	return nodeGetActiveID(ntree, id_code);
 }
 
 /* used in buttons to check context, also checks for edited groups */