Specular texture issue

[ed_mciver]

Hi everyone,

I've run into an issue that I need some advise on.

I am creating an animation that shows the different layers that go into the making of a bank card. In the animation each layer will build in finishing with a protective laminate layer.
This is where I run into my problem...

The laminate needs to sit on top of an object with a glossy material applied to but unfortunately the specular material comes out black. The object with the spec is not touching the glossy material shape, but if I move it further away then it begins to behave as expected. I really need these objects to fit as tight to each other for the animation to work.

My render settings are set to PT with a specular depth of 16. Fake shadows is also ticked in the texture. I have tried this with a flat object and an object with some depth.

I have attached some screen shots showing the positioning of the objects along with my render settings and the scene file. I am working to real world scale but have experienced the same issue scaling up the scene.

Any help would be greatly appreciated.

Cheers

Ed

[aoktar]

Your scales are very small so you need smaller ray_epsilon(0.000001) to avoid errors. Also caustic_blur should be bigger, maybe 1.0 or near if you don't need caustics.