mix material through alpha channel

[visitor]

Hi, your renderer looks promising. May I ask how someone can create a mix material through a simple grayscale channel image? I guess that could be the stack material but I can’t find that in the list..

[Jeremy Hill]

Yes, you can do this with the Blend material, which allows blending together several materials either by opacity value, or by opacity map.

[visitor]

Hi again and thank you for the note. As I’m getting used to the UI, I think I’ve discovered a bug.

While opacity mask works with parametrical features (grid, checkboard etc) does not recognize the UV of the model when using a texture map.

 

[Jeremy Hill]

I think I would need a file to confirm that; if you are playing with the GUI it can be confusing how to connect textures to desired UV channels on the mesh. It is done by linking the texture in a mesh’s parent transform, and this is normally handled for you by a plugin.

[visitor]

Hi, I think it’s a bug

here are some files, UVs assigned in c4d

https://we.tl/t-jemIaPsUc9

hope that helps

[Jeremy Hill]

Thanks, I’ll check it out.

[Jeremy Hill]

As far as I can tell it is working correctly; the object has only one set of UVs, and they appear the same in bella, as when I import the .obj into cinema:

bella (geo scaled -1 in X):

cinema:

[visitor]

it works as a simple diffuse texture. Does not work as an opacity mask between two materials

 

[Jeremy Hill]

Ah sorry, I thought you meant there was an issue with handling of UVs. I think what you want to do is unassign the map from your lambert0 material (or not), and assign fileTexture0:outAverage to opacity for the lambert material in the blendMaterial:

If you click the little “arrow” icon at the right side of the opacity attribute, you will get a drop-down that lets you select various compatible output attributes from other nodes, so you would select fileTexture0 -> outAverage.

[visitor]

thank you, that was it!

I appreciate your prompt reply and overall approach, gives me a good signal for professional use

I’ve also sent you an email, no matter the specific proposal I will look closely the progress of Bella and sooner or later acquire the license in order to incorporate it into our workflow

 

 

[Jeremy Hill]

Great, glad that helped, and thanks for giving Bella a try. 🙂

I did get a message from you through our contact form, and have sent 2 replies, but I do not yet see a reply to those yet in my inbox, so please check your junk mail folder.

[Author]

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