Toolbag - Possible to get or render depth buffer for custom post effect?

ryant3d · Feb 2019

Hey all!

I am working on a cel shader and wanted to add Sobel edge detection. For this, I need access to depth information. Is it possible to access the depth texture used by something like the DoF post effect? If not, is it possible to use a fragment shader to render all objects in the scene to a depth buffer? I'm having difficulty trying to understand how some of this information is passed around between shaders.

Thanks for any assistance!

EarthQuake · Feb 2019

ryant3d said:

Hey all!

I am working on a cel shader and wanted to add Sobel edge detection. For this, I need access to depth information. Is it possible to access the depth texture used by something like the DoF post effect? If not, is it possible to use a fragment shader to render all objects in the scene to a depth buffer? I'm having difficulty trying to understand how some of this information is passed around between shaders.

Thanks for any assistance!

Hi Ryan, I just asked our engineers and it looks like the depth pass is not available in the custom shader system. Depth / post effects happen outside of the material systems.

ryant3d · Feb 2019

Hey!

Thanks for asking the team, I appreciate it. Looks like it's back to the old flipped-normals trick

Michalo · Feb 2019

Here's the trick you could find usefull:
https://80.lv/articles/tutorial-rendering-passes-in-marmoset-toolbag/

ryant3d · Mar 2019

Thanks for posting the article! Unfortunately, what I wanted to do requires being able to stay inside Toolbag as well as the shader system. I am able to generate a depth pass, but have no way to store/access it within another shader inside Toolbag itself.

Toolbag - Possible to get or render depth buffer for custom post effect?

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