I have a model which uses a bump map to create some height detail. In Blender the bump map works as expected but when I apply it in iClone it does not seem to have any effect. I have tried using both a PNG and a BMP for the height map (since some channel, such as Opacity, use the Alpha channel when provided a PNG) but in neither case did the bump map seem to do anything.

Here is a render from Blender. Note the front grill, hub caps, door outline and door handle...

67% of original size (was 748x443) - Click to enlarge

Now look at the same model in iClone. As can be seen the (same) Bump map is applied but it does not seem to have any effect. The grill, hub cap, door and handle details are all missing.

67% of original size (was 748x443) - Click to enlarge
 
I noticed this happening on some of my other content but I have not yet been able to determine what is causing it. Does anyone have some suggestions that I could try to get my bump map working?

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