DeMuenu/MoonlightVRC
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Add shadowcaster support to lighting and shaders

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Introduces shadowcaster support by adding shadow map index fields to light data, updating PlayerPositionsToShader and LightdataStorage to handle shadow map indices, and extending the shader and its includes to sample shadowcaster planes. Adds ShadowcasterUpdater script and editor preview for updating world-to-local matrices, and updates relevant arrays and property handling throughout the codebase. Also adds a sample plane mesh for shadowcasting.
This commit is contained in:
DeMuenu
2025-09-29 23:14:38 +02:00
parent bce6fbdc3d
commit 868e713336
15 changed files with 521 additions and 61 deletions
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23
Shader/BlendinShader.shader
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@@ -17,6 +17,12 @@ Shader "DeMuenu/World/Hoppou/RevealStandart"
_LightCutoffDistance ("Light Cutoff Distance", Float) = 100
//Moonlight END
_shadowCasterTex ("Shadow Caster Texture", 2D) = "white" {}
_shadowCasterColor ("Shadow Caster Color", Color) = (1,1,1,1)
_OutSideColor ("Outside Color", Color) = (1,1,1,1)
_MinBrightnessShadow ("Min Brightness for Shadows", Range(0,1)) = 0
}
@@ -36,6 +42,7 @@ Shader "DeMuenu/World/Hoppou/RevealStandart"
#include "Includes/Lambert.hlsl"
#include "Includes/DefaultSetup.hlsl"
#include "Includes/Variables.hlsl"
#include "Includes/Shadowcaster.cginc"
//Moonlight Defines
#define MAX_LIGHTS 80 // >= maxPlayers in script
@@ -84,6 +91,12 @@ Shader "DeMuenu/World/Hoppou/RevealStandart"
MoonlightGlobalVariables
float4x4 _Udon_WorldToLocal;
sampler2D _shadowCasterTex;
float4 _shadowCasterColor;
float4 _OutSideColor;
float _MinBrightnessShadow;
v2f vert (appdata v)
{
@@ -140,7 +153,15 @@ Shader "DeMuenu/World/Hoppou/RevealStandart"
LightTypeCalculations(_Udon_LightColors, LightCounter, i, NdotL, dIntensity, _Udon_LightPositions[LightCounter].a, _Udon_LightPositions[LightCounter].xyz);
dmax = dmax + contrib * float4(LightColor, 1) * NdotL; // accumulate light contributions
float4 ShadowCasterMult = float4(1,1,1,1);
if (_Udon_ShadowMapIndex[LightCounter] > 0.5) {
ShadowCasterMult = SampleShadowcasterPlane(_Udon_WorldToLocal, _shadowCasterTex, _Udon_LightPositions[LightCounter].xyz, i.worldPos, _OutSideColor);
ShadowCasterMult *= _shadowCasterColor;
ShadowCasterMult = float4(ShadowCasterMult.rgb * (1-ShadowCasterMult.a), 1);
}
dmax = dmax + contrib * float4(LightColor, 1) * NdotL * max(ShadowCasterMult, _MinBrightnessShadow);
}