Transparency Issues

[Joe K]

I notice that when draping or floating a graphic (tiff) over my 3d model that I have to choose a color. Since the idea behind transparency is to see what is behind, or below as this case may be, how can I set the transparency color to equal null.

The problem is that when you set your transparency to the lower values it leaves a white square over my model. Is there a way to get around this so I can reference my aerial photo my underlying model?

Any ideas would be great, thanks-

-joe

[Joe K]

Thank you Tom for the speedy response. As it turns out, the problem is not in the draped (or floating) image it is actually a property of the solid model. Specifically, I had the filter enabled which for what ever reason places a layer (color of the background) right below the floating/draped image. by disabling that filter, I was able to get a good transparency for my model. Since it is a lithology model, this will only become an issue if I am looking to show only types of lithology.

Thanks again Tom

-joe