DeMuenu/MoonlightVRC
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Refactor lighting code and add wave support to shaders

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Modularized lighting calculations by introducing DefaultSetup.hlsl and Lambert.hlsl includes, and updated BlendinShader, LitParticles, and Water shaders to use these macros. Added new wave-related properties and logic to Water.shader for enhanced wave effects. Improved maintainability and consistency across shaders by centralizing light and Lambertian diffuse calculations.
This commit is contained in:
DeMuenu
2025-09-25 02:21:26 +02:00
parent b9bfd0b559
commit 07730827f4
11 changed files with 103 additions and 86 deletions
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73
Shader/Water.shader
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@@ -23,6 +23,14 @@ Shader "DeMuenu/World/Hoppou/Water"
_FresnelPower ("Fresnel Power", Range(1,8)) = 5
_ReflectionStrength ("Reflection Strength", Range(0,1)) = 0.7
//MoonsLight END
_WaveInput ("Wave Input", 2D) = "black" {}
_WaveTex ("Wave Texture", 2D) = "black" {}
_CameraScale ("Camera Scale", Float) = 15
_CameraPositionZ ("Camera Position Z", Float) = 0
_CameraPositionX ("Camera Position X", Float) = 0
_WaveScale ("Wave Scale", Range(0.001, 100)) = 1
}
SubShader
{
@@ -38,6 +46,9 @@ Shader "DeMuenu/World/Hoppou/Water"
#pragma fragment frag
#include "UnityCG.cginc"
#include "Includes/LightStrength.hlsl"
#include "Includes/Lambert.hlsl"
#include "Includes/DefaultSetup.hlsl"
//MoonsLight Defines
#define MAX_LIGHTS 80 // >= maxPlayers in script
@@ -88,6 +99,15 @@ Shader "DeMuenu/World/Hoppou/Water"
float _SpecPower, _SpecIntensity;
float3 _AmbientFloor;
sampler2D _WaveInput;
sampler2D _WaveTex;
float2 _WaveTex_ST;
float _CameraScale;
float _CameraPositionZ;
float _CameraPositionX;
float _WaveScale;
//Watershader specific END
float _F0, _FresnelPower, _ReflectionStrength;
@@ -121,10 +141,20 @@ Shader "DeMuenu/World/Hoppou/Water"
float3 NormalOffset1 = UnpackNormal(norm).xyz;
float3 NormalOffset2 = UnpackNormal(norm2).xyz;
float2 waveUV = float2(_CameraPositionX - i.worldPos.x, _CameraPositionZ - i.worldPos.z) / _CameraScale / 2 + 0.5;
fixed4 Wave = tex2D(_WaveInput, waveUV);
if ((waveUV.x < 0.1) || (waveUV.x > 0.9) || (waveUV.y < 0.1) || (waveUV.y > 0.9)){
Wave = float4(0,0,0,0);
}
//i.vertex += float4(0, Wave.g * _WaveScale, 0, 0);
//i.worldPos += float3(0, Wave.g * _WaveScale, 0);
//MoonsLight
int count = (int)_PlayerCount;
float3 N = normalize(i.worldNormal + NormalOffset1 * _NormalMapStrength1 + NormalOffset2 * _NormalMapStrength2); //for lambertian diffuse
float3 N = normalize(i.worldNormal + NormalOffset1 * _NormalMapStrength1 + NormalOffset2 * _NormalMapStrength2 + Wave * _WaveScale); //for lambertian diffuse
//Waterspecific
@@ -140,53 +170,22 @@ Shader "DeMuenu/World/Hoppou/Water"
float4 dmax = float4(0,0,0,1);
float dIntensity = 0;
[loop]
for (int idx = 0; idx < MAX_LIGHTS; idx++)
for (int LightCounter = 0; LightCounter < MAX_LIGHTS; LightCounter++)
{
if (idx >= count) break;
float radius = _LightPositions[idx].a;
float3 q = _LightPositions[idx].xyz;
float distanceFromLight = length(i.worldPos - q);
if (distanceFromLight > _LightCutoffDistance) continue;
float sd = 0.0;
float contrib = 0.0;
InLoopSetup(_LightPositions, LightCounter, count, i); //defines distanceFromLight, contrib
Lambert(_LightPositions[LightCounter].xyz ,i, N);
float invSqMul = max(1e-4, _InverseSqareMultiplier);
LightTypeCalculations(_LightColors, LightCounter, i, NdotL, dIntensity, _LightPositions[LightCounter].a, _LightPositions[LightCounter].xyz);
//Lambertian diffuse
float3 L = normalize(q - i.worldPos); // q = light position
float NdotL = saturate(dot(N, L) * 0.5 + 0.5); // one-sided Lambert
if (NdotL <= 0) continue;
if(_LightType[idx] == 0)
{
float invSq = _LightColors[idx].a / max(1e-4, max(0, max(1, distanceFromLight - radius) * invSqMul) * max(0, max(1, distanceFromLight - radius) * invSqMul));
contrib = invSq;
//contrib = contrib * step(-distance(i.worldPos, q), -1 + radius * 1); // 0 if outside sphere
dIntensity += contrib * NdotL;
}
else if (_LightType[idx] == 1)
{
float invSq = _LightColors[idx].a / max(1e-4, (distanceFromLight * invSqMul) * (distanceFromLight * invSqMul));
float threshold = (-1 + _LightDirections[idx].w / 180);
contrib = min(dot(normalize(i.worldPos - q), -normalize(_LightDirections[idx].xyz)), 0);
contrib= 1 - step(threshold, contrib);
contrib = contrib * invSq;
dIntensity += contrib * NdotL;
}
float3 LightColor = _LightColors[idx].xyz; // * NormalDirMult;
//Watershader specific
//float fres = Schlick(saturate(dot(N, V)), _F0, _FresnelPower);
float3 R = reflect(-V, N);
float spec = pow(saturate(dot(R, L)), _SpecPower);
//return float4(spec, spec, spec,1);
dmax.rgb += _LightColors[idx].rgb * contrib + _LightColors[idx].rgb * _SpecIntensity * spec * contrib;
dmax.rgb += _LightColors[LightCounter].rgb * contrib + _LightColors[LightCounter].rgb * _SpecIntensity * spec * contrib;
dmax.a -= _SpecIntensity * spec;
//dmax = dmax + contrib * float4(LightColor, 1); // accumulate light contributions