[ Substance 3D Painter ] How to set the shader for Opacity material ( alpha-blending )

If you want to set the opacity of something like glass, you need to add an Opacity channel and create an opacity shader ( alpha-blending ).

In this article, I would like to confirm how to set up translucency as follows.
・How to add Opacity channels
・How to change shader to opaque material

How to add Opacity channels

First of all, we need to create a shader from [ Texture Set Settings ] and then add an Opacity channel.

1. Select the texture set to which you want to add the Opacity channel.
2. Select [ New shader instance ] from [ Shader Instance ] in [ Texture Set Settings ].
   
3. Click the [ + ] button from Channels in [ Texture Set Settings ],
   Add [ Opacity ] from [ Unsupported by shader ].
   
   
   Then proceed with the steps below.

How to change shader to opaque material ( alpha-blending )

1. Click the [ Shader Settings ] icon on the right side of the screen,
   Change the shader type to [ pbr-metal-rough-with-alpha-blending ].
   
2. Change the shader name to something easier to understand, such as "Main shader(alpha)".
   
3. Click the [ Add Fill layer ] icon to add a fill layer.
   
   Set the base color, texture, etc. of the opaque area (glass).
   For more information on fill layers, please see this page.
4. Enable [ op ] and adjust the [Opacity ] value.
   

Summary

We have confirmed how to set up the shader for opaque materials.

On the next page, we will learn how to create decals (stickers) using materials from Assets!
Next page Let’s go!