OTOY Forums

Hi,

I'm getting some issues with the shading being sort of blocky. Here's an example

It's easy to see on the pelicans chest area and beak

See this post. I think it's the same issue

Thanks for the reply. Setting the ray epsilon to 0.0 makes it look worse though. Also there isn't any bump maps on this model

have you tried recalculating your normals?

How do you do that in Max?

Those jagged edges seems to appear on any organic model I've made given the right lighting

im no max user but maybe this link can help you find it.

http://www.recipester.org/Recipe:Flip_n ... x_35682020

also, maybe you have a copy of the model right on top of another copy

also, maybe you have a copy of the model right on top of another copy

Seeing the last image, it is also my opinion.

This is the terminator problem

If rayepsilon doesn't work, then your next best option is probably to subdivide the model further. This will just make the artifacts smaller, though.

There is only one model.

I tried rendering the model with different levels of turbosmooth. Here are the results

1 smooth iteration

2 smooth iteration

3 smooth iteration

4 smooth iteration


One iteration looks very jaggy, 2 iterations less so and 3 you can barely notice and four is completely gone it seems.
So it does seem to be the "terminator problem". Thanks for clearing that up matej

I haven't experienced this problem using mental ray, so I don't know if it is a bug or not in Octane.