OTOY Forums

Hi! I am having a scanned 3D model with a wall thickness of 0,6mm ... once i put a specular shader on it (ior, 1,5 like silverwing suggested, PT, 64specdepth) it looks and behaves like glass .. with black borders inside creases. it also has massive glass like refractions. what can I do to make it look like plastic?? thanks guys

Add some Absorption and turn on 'fake shadows'

thanks! i did that in the beginning. other ideas? might be the thickness of the object?

Any print screen? Not much one can do without seeing the unsatisfactory rendered image.
Edit: needless to mention the matching references as frankmci pointed out.

A new, well molded acrylic object can look almost exactly like glass.
https://www.amazon.com/KOXIN-KARLU-Unbr ... B0BVYPLQV6
What are the qualities you are looking for? A real world example photo is a good place to start.

If you have OctaneRender 2022.x or newer version, we don't recommend "Fake Shadows" and you try:
- to change the render kernel to "Photon Tracing" (PHT),
- to check "Allow Caustics" for specular/universal material(s) (eg: glass, water...),
- to reduce "Photon Gathering Radius" for find the ideal focus of caustics at PHT kernel settings.

Happy rendering!

One property of acrylic is that it tends to scratch more easily than glass, so maybe it looks too “clean” in the render.