Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: kraphik3d on 2017-09-13, 11:47:34

Title: rendering c4d native hair and grass
Post by: kraphik3d on 2017-09-13, 11:47:34

Hi

How can I render c4d native hair with Corona?
It does not seem to understand it at all.

Title: Re: rendering c4d native hair and grass
Post by: Eddoron on 2017-09-13, 12:09:35

At this moment, only polygonal geometry is supported.
In the hair object's "generate" tab you need to generate the geometry first.(flat, tri, quad, circle etc.).
There's no hair shader yet but you can create a corona material with translucency, anisotropy etc.(a layered one would be best) and apply it to the hair object.
The thickness and other parameters like bend, twist, curl can be controlled by the native c4d material which should be under the corona-material on the hair.

Title: Re: rendering c4d native hair and grass
Post by: kraphik3d on 2017-09-15, 16:12:21

thanks for reply. I will try that. For now I have used displacement channel in corona shader with noise blended to tileable grass bitmap to create short grass .
Otherwise its good but you cannot have any curling or other effects on the grass

Title: Re: rendering c4d native hair and grass
Post by: Eddoron on 2017-09-15, 17:39:46

In case something's unclear, this is how a simple setup looks like:
Just a plane with a hair object and generated flat geometry.
The native hair material always stays on the hair object and its attributes, except for color etc. define the geometry. (aside from the things in the hair object)

edit: I misread what you wrote and thought that there were some problems with the curling. I get that you use a displacement map that has some grass.