Select portions from a multi-textured image?

[geoyeo]

Hi all,

I have a multi image-texture that consists of different elements.

is there any way to apply a specific part of that texture on an object?

For eg I would like to use only the 59 lets say of the attached image..

is there any way to crop it and apply this only to surface?

Thank you!

[aoktar]

you can use transform node by adjusting the scale/translate parameters.

[geoyeo]

Hi thnks, in this case I use a composite material.

Material 1 is my base.

For the 2nd material, I use a mask that I have set the wrap mode to black color then with the transition the only think I get is to move the mask but I wish to kind of crop the mask in order to use only a portion of the mask texture..

[aoktar]

You may need to use OSL script as in picture. Also parameters needs to be adjusted if you use transform in images. It affects the transformed uv coordinates. Don't know if we can modify also uv-coordinate from a texture OSL to do it automatically.

[geoyeo]

wow that's exactly what I was looking for!!!

Do you believe that this can be implemented in transformation node like "crop" function?

is there any way to save this script to use it as a node anytime I want?

really appreciate this help many many thanks!

[aoktar]

wow that's exactly what I was looking for!!!

Do you believe that this can be implemented in transformation node like "crop" function?

is there any way to save this script to use it as a node anytime I want?

really appreciate this help many many thanks!

I don't know to do it by one osl but I'll talk to team for asking it.

[geoyeo]

any chance you asked the team about it?

Have a nice day!