render materials?

[swats]

I am slowly trying to learn how to do photo realistic renderings in Autocad 2010. I am working with a model of a Chevrolet small block engine I found online. I assigned my materials to the different parts of the engine. When I render the file some the materials have been switched (for example the fan belt looks like aluminum). I have my materials assigned by my layers (I used the materialattach command). The valve covers, timing cover, and water neck should be chrome. The block should more of a hugger orange. The water pump, pulleys, intake manifold, and air filter base and lid should be aluminum. The belt, distributor, exhaust manifold should be flat black. And the air filter element and oil filter should be white. Any ideas?

[fahim108]

Just a wild guess, use the Remove materials from selected solids option (under the materials flag) to clear any overrides (that may be preventing the MATERIALATTACH thingy to work).

 

I hope it works.

[swats]

I removed all materials and purged the drawing. Then I went and recreated all of my materials and reassigned them. Here is a screen shot from Autocad. I have another file that I was originally working with for a project for work that does the same thing as far as materials not rendering correctly or being switched. In case someone ask I cannot post pictures of the file for confidentiality reasons.