#Unity 2019 shadow cascades code#

Int cas_idx_1 = anhei_ComputeCascadeIndex(i.world_pos) Weights.yzw = saturate(weights.yzw - weights.xyz) Half4 weights = half4(distances2 < _CascadeShadowSplitSphereRadii) Half anhei_ComputeCascadeIndex(float3 positionWS)Р”Р‡loat3 fromCenter0 = positionWS - _CascadeShadowSplitSpheres0.xyz Р”Р‡loat3 fromCenter1 = positionWS - _CascadeShadowSplitSpheres1.xyz Р”Р‡loat3 fromCenter2 = positionWS - _CascadeShadowSplitSpheres2.xyz Р”Р‡loat3 fromCenter3 = positionWS - _CascadeShadowSplitSpheres3.xyz Р”Р‡loat4 distances2 = float4(dot(fromCenter0, fromCenter0), dot(fromCenter1, fromCenter1), dot(fromCenter2, fromCenter2), dot(fromCenter3, fromCenter3)) General calculation of which cutout ball the current pixel (world coordinate) is in User defined direct assignment to take a cascading shadow of an intervalР”Р‡loat4 anhei_TransformWorldToShadowCoord2(int idx, float3 positionWS) Return float4(shadowCoord.xyz, cascadeIndex) Half cascadeIndex = ComputeCascadeIndex(positionWS) Р”Р‡loat4 shadowCoord = mul(_MainLightWorldToShadow, float4(positionWS, 1.0)) Each resolution interval is cut by cutting the ballР”Р‡loat4 anhei_TransformWorldToShadowCoord(float3 positionWS) The light source depth texture with different resolution is obtained by switching shadow coord Unity brushes all cascading shadows in a depth texture

Conventional CSM texture mapping function

VertexPositionInputs vertexInput = GetVertexPositionInputs(v.vertex.xyz) #include 'Packages//ShaderLibrary/Lighting.hlsl' #include 'Packages//ShaderLibrary/Core.hlsl' #pragma multi_compile_fragment _ _SHADOWS_SOFT #pragma multi_compile_fragment _ _ADDITIONAL_LIGHT_SHADOWS #pragma multi_compile _ _MAIN_LIGHT_SHADOWS_CASCADE #pragma multi_compile _ _MAIN_LIGHT_SHADOWS #pragma exclude_renderers gles gles3 glcore

#Unity 2019 shadow cascades code#

The complete URP shader code is posted below Just copy it so that the object itself can generate shadows The pass depthonly shadowcaster required by other URP pipelines is not described. The shadow code for mixing the two resolutions is as follows If they are to be processed, the method is the same Other cutting balls are far away from the camera, so it has little impact if they are not processed. This case only deals with the transition effect between the first cut ball and the second cut ball, The code is as follows:Р”Р‡orce the cascade shadow mapping of a cut ball, and the code is as follows: Extract several from the unit internal functions for transformationР”В¬alculate which cutout ball the current pixel (world coordinate) is located in. On the left is the cascading shadow effect of unity, and on the right is the smoothed cascading shadow The operation comparison diagram is as follows, I found some solutions online, which are very huge,Р”В«asically, you have to deal with cascading shadows yourselfР”Р„fter reading the build in of URP, I thought of a dark way to deal with it simply. I tried the shadow of unity and found that there was a seam problem,