diff --git a/src/alternativa/engine3d/core/Renderer.as b/src/alternativa/engine3d/core/Renderer.as
index 27bb6af..fdffdf7 100644
--- a/src/alternativa/engine3d/core/Renderer.as
+++ b/src/alternativa/engine3d/core/Renderer.as
@@ -90,6 +90,10 @@ package alternativa.engine3d.core {
 					}
 				}
 			}
+			_contextProperties.culling = null;
+			_contextProperties.blendSource = null;
+			_contextProperties.blendDestination = null;
+			_contextProperties.program = null;
 			// Clear
 			drawUnits.length = 0;
 		}
diff --git a/src/alternativa/engine3d/core/View.as b/src/alternativa/engine3d/core/View.as
index faaf930..ef6778d 100644
--- a/src/alternativa/engine3d/core/View.as
+++ b/src/alternativa/engine3d/core/View.as
@@ -652,6 +652,7 @@ package alternativa.engine3d.core {
 				cachedContext3D = context;
 				context3DViewProperties = properties[cachedContext3D];
 				if (context3DViewProperties == null) {
+					// TODO: create programs on first render
 					context3DViewProperties = new Context3DViewProperties();
 					var rectGeometry:Geometry = new Geometry(4);
 					rectGeometry.addVertexStream([VertexAttributes.POSITION, VertexAttributes.POSITION, VertexAttributes.POSITION, VertexAttributes.TEXCOORDS[0], VertexAttributes.TEXCOORDS[0]]);