Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: celmar on 2020-03-11, 10:49:04

Title: displacement problems
Post by: celmar on 2020-03-11, 10:49:04

hello!!   with a shader of displace, the letters are dirty, on the side, even with a long time render... Any hints to solve, or do better??? thank you!!!!!

Title: Re: displacement problems
Post by: davetwo on 2020-03-11, 12:49:23

in the Performance tap of your Renders settings, there is a Displacement screen size box. Try setting the number lower (ie. 1)

Title: Re: displacement problems
Post by: Mac_Mac on 2020-03-11, 20:15:49

Try to slightly blur your b&w image in PS. Also I've noticed displacement maps with gradients work better if they are 16 bit.

Title: Re: displacement problems
Post by: johnnyswedish on 2020-03-11, 23:29:48

Defo! I used to have this problem as well but using hi-res 16 or 32 bit b/w bitmaps helps and lowering the displacement setting as davetwo said. 👍😎

Title: Re: displacement problems
Post by: celmar on 2020-03-12, 16:27:52

thank you for your answers!
I've increased the map to 32 bit, but without much improvement... The displace in 2.5 is slightly better, but both have problems... the displacement is on a curved plane, so the displace is better in the center than towards the edges... I solved the problem by making the letters a separate object, but I would have preferred to use the speed of a displacement map!!!

Title: Re: displacement problems
Post by: Mac_Mac on 2020-03-14, 14:16:42

I believe the problem is with your bitmap. I've used 16 bit image with a white shape 3px gaussian blurred. Corona's displace screen 1px, 2.5D