Sampling Character Shadow¶

Using Screen Space Shadow¶

The per-object shadow of characters and Unity's built-in shadow will be combined into a single screen space shadow map.

According to the previous rendering flowchart, if your material is rendered in the URP Opaque pass, you only need to add the _MAIN_LIGHT_SHADOWS_SCREEN keyword to it. Then, you can sample the main light shadow using URP's default method.

Manual Sampling¶

For materials rendered in other passes and transparent materials that do not support screen space shadow, you can manually sample character shadow.

Enable soft shadow.

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#pragma multi_compile_fragment _ _SHADOWS_SOFT

Include the file.

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#include "Packages/com.stalomeow.star-rail-npr-shader/Shaders/Shadow/PerObjectShadow.hlsl"

Sample all character shadow using world space position.

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float shadow = MainLightPerObjectSceneShadow(positionWS);