- quick fix for bug #2412, render normal was not initialized for mesh

   edges. fix by average two edge endpoint vertex normals.

1 files changed, 14 insertions, 1 deletions

diff --git a/source/blender/renderconverter/intern/convertBlenderScene.c b/source/blender/renderconverter/intern/convertBlenderScene.c
index eb69ab601c3..cbb3239dd67 100644
--- a/source/blender/renderconverter/intern/convertBlenderScene.c
+++ b/source/blender/renderconverter/intern/convertBlenderScene.c
@@ -1555,11 +1555,15 @@ static void init_render_mesh(Object *ob)
 		
 		/* exception... we do edges for wire mode. potential conflict when faces exist... */
 		end= dlm?dlm->totedge:me->totedge;
+		mvert= dlm?dlm->mvert:me->mvert;
 		ma= give_render_material(ob, 1);
 		if(end && (ma->mode & MA_WIRE)) {
 			MEdge *medge;
 			medge= dlm?dlm->medge:me->medge;
 			for(a1=0; a1<end; a1++, medge++) {
+				MVert *v0 = &mvert[vertofs+medge->v1];
+				MVert *v1 = &mvert[vertofs+medge->v2];
+
 				vlr= RE_findOrAddVlak(R.totvlak++);
 				vlr->ob= vlr_set_ob(ob);
 				vlr->v1= RE_findOrAddVert(vertofs+medge->v1);
@@ -1567,7 +1571,16 @@ static void init_render_mesh(Object *ob)
 				vlr->v3= vlr->v2;
 				vlr->v4= NULL;
 				
-				vlr->n[0]=vlr->n[1]=vlr->n[2]= 0.0;
+				xn= (v0->no[0]+v1->no[0]);
+				yn= (v0->no[1]+v1->no[1]);
+				zn= (v0->no[2]+v1->no[2]);
+				if(do_puno==0) {
+					/* transpose ! */
+					vlr->n[0]= imat[0][0]*xn+imat[0][1]*yn+imat[0][2]*zn;
+					vlr->n[1]= imat[1][0]*xn+imat[1][1]*yn+imat[1][2]*zn;
+					vlr->n[2]= imat[2][0]*xn+imat[2][1]*yn+imat[2][2]*zn;
+					Normalise(vlr->n);
+				}
 				
 				vlr->mat= ma;
 				vlr->flag= 0;