Transparent vis

components/operators/src/segmentation.cu

@@ -95,7 +95,8 @@ __global__ void vis_support_region_kernel(TextureObject<uchar4> colour, TextureO
 
 		for (int u=-baseY.x; u<=baseY.y; ++u) {
 			if (x+u < 0 || y+v < 0 || x+u >= colour.width() || y+v >= colour.height()) continue;
-			colour(x+u, y+v) = make_uchar4(255,0,0,0);
+			uchar4 col = colour.tex2D(x+u, y+v);
+			colour(x+u, y+v) = make_uchar4(255,col.y,col.z,0);
 		}
 	}
 }