Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: mitchino on 2025-09-18, 12:30:56

Title: Bump, Displacement and UVs
Post by: mitchino on 2025-09-18, 12:30:56

I am rendering a bottle that has been UV'd and has a displacement map to define various details on the glass.

I also want an overall micro bump to make the glass imperfect. I'm using a texture map for this.

I want the bump texture to use cubic mapping while the displacement uses the UV map.

Is this possible?

In Octane I can add projection and transform nodes to control the bump map separately from the displacement map.

Is this possible in Corona?

Title: Re: Bump, Displacement and UVs
Post by: John_Do on 2025-09-18, 15:04:07

Erf, it's kind of the worst aspect of Cinema 4D before the introduction of the new node editor, and unfortunately Corona doesn't use the latter.

However there are two ways to do this :

- use a Projection shader
- or a Triplanar shader

Both in the bump channel, and the Texture Tag configured in UVW Map mode.

Be sure to double check the result, bump channel had several issues with custom mapping in the past.

Title: Re: Bump, Displacement and UVs
Post by: mitchino on 2025-09-18, 17:38:41

Thanks will experiment.