Index: trunk/src/data.c
===================================================================
--- trunk/src/data.c	(revision 680)
+++ trunk/src/data.c	(revision 681)
@@ -44,9 +44,12 @@
 
 void camv_layer_init(camv_layer_t *layer)
 {
+	static rnd_xform_mx_t ident = RND_XFORM_MX_IDENT;
+
 	memset(layer, 0, sizeof(camv_layer_t));
 	camv_rtree_init(&layer->objs);
 	layer->vis = 1;
+	memcpy(layer->mx, ident, sizeof(ident));
 }
 
 camv_layer_t *camv_layer_new(void)
Index: trunk/src/data.h
===================================================================
--- trunk/src/data.h	(revision 680)
+++ trunk/src/data.h	(revision 681)
@@ -56,10 +56,10 @@
 	unsigned sub:1;       /* if 1, layer is a sub-layer in compositing; a main layer is the first of a series of composite layers; sub layers are not visible in the layer sel */
 	unsigned vis:1;       /* for main layers: UI visibility */
 	unsigned clearing:1;  /* if 1, the layer is negative, clearing layer */
+	unsigned enable_mx:1; /* if 1, apply mx (as a matrix transformation) when drawing */
 
-
 	/* cache */
-	rnd_xform_mx_t mx;
+	rnd_xform_mx_t mx;    /* drawin/rendering mx transformation; does not affect bbox */
 };
 
 extern camv_design_t camv;
Index: trunk/src/draw.c
===================================================================
--- trunk/src/draw.c	(revision 680)
+++ trunk/src/draw.c	(revision 681)
@@ -33,6 +33,9 @@
 	void *o;
 	rnd_xform_mx_t *mx = NULL;
 
+	if (ly->enable_mx)
+		mx = &ly->mx;
+
 	for(o = camv_rtree_first(&it, &ly->objs, (camv_rtree_box_t *)&region->view); o != NULL; o = camv_rtree_next(&it)) {
 		camv_any_obj_t *obj = o;
 		obj->proto.calls->draw(obj, gc, mx);