Looking at that Image I would simply delete the selection and make faces between what appears to be a radial array of beams.

Are you using GPU acceleration and do you have an AMD graphics card? If so it's not going to work as stated in here: @unknownuser said: Interactive GPU OpenCL rendering mode is currently not supported. If you have NVIDIA, try updating your graphics card driver and see if it helps. (Or disable GPU acceleration) If you take this scene directly from Vray 2, it might be problematic sometimes. Check this article: Migrating from Previous Versions.

Are you using GPU acceleration? If so try disabling it, if not try using that. (Also make sure graphics card drivers up to date) Can you also share your render settings?

You can ignore this post, I just found a solution. I copy pasted the whole model in a new Sketchup file. I guess this removes unused materials.

Thx guys I'll try it out.

@pbacot It was indeed a black hole. The whole building was a group and I accidentally painted the whole group with a dark material. So all the standard (white) material was replaced. I also replaced the glass material with another one. I'm pretty happy with the result now. [image: MB61_straatkant.jpg]

Thx for the advise. I'll keep it in mind. I finally got it the way I want. I added an extra omni light. I read somewhere that it can occur when there's not enough light. The result [image: 9tnD_bathroom.png]

@tuna1957 said: Dave, I'm going to sneak in here and try to help you out. First off Twilight won't render proper with the camera outside a wall that has a solid material on the front face and a transparent material on the back face. if memory serves Twilight only reads materials on front faces. Actually did a quick test, you only get a screen full of weirdness.If you have to render "looking through a wall" to get the scene set up you want. hide the wall or make it transparent both sides. Render with the sun disabled or light will pour in the open side. Use your interior lighting ( invisible emitter in ceiling or point lights ). position a plane outside your window and make that an emitter to give you light coming in the window. You can apply an appropriate image to the plane outside the window and then assign your light emitter properties to it. P.S. I think your getting the hard light and shadows in the image you posted because you have shadows enabled . Tuna, this is exactly the answer I was looking for. I have looked at the Twilight tutorials a bunch of times and never see anything like this. I will go work on it some more. I do not want to distract from this thread anymore so I will discuss it, if needed, on the Twilight forum. See you there......again, thanks very much.

Skatter works great. You can choose whether you see the grass in SU (not preferable) or only show it when you render. So the viewport stays responsive. And rendering is quite quick as it uses proxies. I noticed that the pursing time for V-Ray takes some more time when using a lot of skatters. You can limit the skatter to only calculate what you see through the camera. You should really try it out and take some time to explore it. It is worth it IMHO. Regards,

thx guy's So triangulation was the magic word Both plugins worked. I personally think that toposhaper worked better. It had more options and I'm a big fan of Libfredo plugins.

Vray is more effective when rendering if the base model with its textures and settings are on the SSD.

you can avoid this yellow light by going in Indirect illumination, and put Saturation to 0