Opacity map isn't working?

christopheduron

I'm using the 'pbr-metal-roud-with-alpha-blending' shader in substance painter 1 and i want to use an opacity map to make gemstones slightly see-through and also to give the border of my fur clothing a more natural feel to it. I quickly made this just to test and i'm having some issues with it:



For some reason when i rotate my camera the opacity map doesn't work anymore and turns into an alpha based one. As for my gemstones i can't even get them to use opacity, it's either completely visible or completely invisible. Any reason for this?

I tested it on 'Hans' aswel and it works there.

Jerc

The transparency shader in Painter doesn't work very well, I would recommend trying this one: https://share.allegorithmic.com/libraries/1740
I'm not sure it will work great for the gemstones, but it will definitely work much better for the fur.

christopheduron

I installed it (for SP1) and it turns my model completely pink.

I read the comments on the substance share page and some guy had the exact same problem and solved it by doing this:

"@Froyok, had to rewrite the matrix as one dimensional array and it worked, thanks for the shader! Maybe for compability you shouldn't use multidimensional arrays?"

I have no clue how to do this however, perhaps you do?

Froyok

I already fixed the shader (but didn't tested it with Substance Painter 1). An error should appear in the log window, what do you get ?

christopheduron

[GenericMaterial] FS Shader parameters/states log:

[GenericMaterial] ------------------

[GenericMaterial] File index:

[GenericMaterial] 0: shader-skeleton.frag.glsl

[GenericMaterial] 1: shader-common.frag.glsl

[GenericMaterial] 2: lib-utils.glsl

[GenericMaterial] 3: pbr-alpha-test-dithering.glsl

[GenericMaterial] 4: lib-sampler.glsl

[GenericMaterial] 5: lib-defines.glsl

[GenericMaterial] 6: lib-pbr.glsl

[GenericMaterial] 7: lib-env.glsl

[GenericMaterial] 8: lib-normal.glsl

[GenericMaterial] 9: lib-random.glsl

[GenericMaterial] 10: lib-alpha.glsl

[GenericMaterial]

[GenericMaterial] pbr-alpha-test-dithering.glsl:13 | Special comment that is not a 'state', a 'param', or a 'stacks' definition

[GenericMaterial] pbr-alpha-test-dithering.glsl:14 | Special comment that is not a 'state', a 'param', or a 'stacks' definition

[GenericMaterial] pbr-alpha-test-dithering.glsl:15 | Special comment that is not a 'state', a 'param', or a 'stacks' definition

[GenericMaterial] Auto params infos:

[GenericMaterial] ------------------

[GenericMaterial] The uniform 'dither[0][0]' will never be set.

[GenericMaterial] The uniform 'dither[1][0]' will never be set.

[GenericMaterial] The uniform 'dither[2][0]' will never be set.

[GenericMaterial] The uniform 'dither[3][0]' will never be set.

[GenericMaterial] The uniform 'dither[4][0]' will never be set.

[GenericMaterial] The uniform 'dither[5][0]' will never be set.

[GenericMaterial] The uniform 'dither[6][0]' will never be set.

[GenericMaterial] The uniform 'dither[7][0]' will never be set.

[GenericMaterial] Creation of the shader pbr-alpha-test-dithering failed

This

Froyok

Okay, I see the problem. I published an updated version, you can download it again from the Substance Share page.

christopheduron

Yup, it's working now! I really appreciate the instantaneous trouble shooting!