Displacement trouble : render with white points !

[azo]

Hello,
(sorry for my bad english)

I'm working on a project, but i've got some problems with this texture. I already search in the forum and found any solutions :-\

This is a stone texture with displacement. First i've already try to subdivide my texture to render, but it doesnt work.
Please could you help me to disappear this white points who appear when rendering .







here texture general settings

[fpedrogo]

Re: Displacement trouble : render with white points !

Do you have clamp output and subpixel enable? (Color maqpping rollout)

[azo]

Re: Displacement trouble : render with white points !

Do you have clamp output and subpixel enable? (Color maqpping rollout)

OH TANKS A LOT FPEDROGO ! It works now !

I love this forum ! Very fast and preciously informations are given !



by the way, if you could shortly explain to me why this parameter should be enabled, it could be great to learn.

[fpedrogo]

Re: Displacement trouble : render with white points !

Basically "clamp output" allow you to clamp the color to certain value. In term of color don't let you go further than the value that you have in clamp level.
Subpixel determine if the color mapping will be applied to the pixels or to the individual sub-pixel samples.
If you want to create a 32 bit image you have to disable the clamp output in order to get more range on the color pixel.

[thomthom]

Re: Displacement trouble : render with white points !

If you want to create a 32 bit image you have to disable the clamp output in order to get more range on the color pixel.

How do you then deal with burned spots like that?

[fpedrogo]

Re: Displacement trouble : render with white points !

That is a good question. Usually when you have a big image you have more pixel to define those area and with a good anti-aliasing solution. Let enable subpixel.