Refactor lighting code and add wave support to shaders

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

7
README.md.meta Normal file
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@@ -33,6 +33,8 @@ Shader "DeMuenu/World/Hoppou/RevealStandart"
#include "UnityCG.cginc"
#include "Includes/LightStrength.hlsl"
#include "Includes/Lambert.hlsl"
#include "Includes/DefaultSetup.hlsl"
//MoonsLight Defines
#define MAX_LIGHTS 80 // >= maxPlayers in script
@@ -125,23 +127,11 @@ Shader "DeMuenu/World/Hoppou/RevealStandart"
[loop]
for (int LightCounter = 0; LightCounter < MAX_LIGHTS; LightCounter++)
{
if (LightCounter >= count) break;
float3 Lightposition = _LightPositions[LightCounter].xyz;
float distanceFromLight = length(i.worldPos - Lightposition);
if (distanceFromLight > _LightCutoffDistance) continue;
float sd = 0.0;
float contrib = 0.0;
float invSqMul = max(1e-4, _InverseSqareMultiplier);
InLoopSetup(_LightPositions, LightCounter, count, i); //defines distanceFromLight, contrib
//Lambertian diffuse
float3 L = normalize(Lightposition - i.worldPos); // Lightposition = light position
float NdotL = saturate(dot(N, L) * 0.5 + 0.5); // one-sided Lambert
if (NdotL <= 0) continue;
Lambert(_LightPositions[LightCounter].xyz ,i, N); //defines NdotL
LightTypeCalculations(_LightColors, LightCounter, i, NdotL, dIntensity, _LightPositions[LightCounter].a, _LightPositions[LightCounter].xyz);

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@@ -0,0 +1,11 @@
#ifndef InLoopSetup
#define InLoopSetup(_LightPositions, LightCounter, count, i) \
if (LightCounter >= count) break; \
\
float distanceFromLight = length(i.worldPos - _LightPositions[LightCounter].xyz); \
if (distanceFromLight > _LightCutoffDistance) continue; \
\
float contrib = 0.0; \
#endif

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@@ -0,0 +1,7 @@
#ifndef Lambert
#define Lambert(q ,i, N) \
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; \
#endif

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@@ -1,5 +1,7 @@
#ifndef LightTypeCalculations
#define LightTypeCalculations(_LightColors ,LightCounter, i, NdotL, dIntensity, radius, Lightposition) \
float invSqMul = max(1e-4, _InverseSqareMultiplier); \
\
if(_LightType[LightCounter] == 0) \
{ \
contrib = _LightColors[LightCounter].a / max(1e-4, max(0, max(1, distanceFromLight - radius) * invSqMul) * max(0, max(1, distanceFromLight - radius) * invSqMul)); \

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@@ -32,6 +32,9 @@ Shader "DeMuenu/World/Hoppou/Particles/LitParticles"
#define MAX_LIGHTS 80 // >= maxPlayers in script
#include "UnityCG.cginc"
#include "Includes/LightStrength.hlsl"
#include "Includes/Lambert.hlsl"
#include "Includes/DefaultSetup.hlsl"
@@ -116,46 +119,15 @@ Shader "DeMuenu/World/Hoppou/Particles/LitParticles"
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;
InLoopSetup(_LightPositions, LightCounter, count, i); //defines distanceFromLight, contrib
float sd = 0.0;
float contrib = 0.0;
Lambert(_LightPositions[LightCounter].xyz ,i, N); //defines NdotL
LightTypeCalculations(_LightColors, LightCounter, i, NdotL, dIntensity, _LightPositions[LightCounter].a, _LightPositions[LightCounter].xyz);
float invSqMul = max(1e-4, _InverseSqareMultiplier);
//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;

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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;
InLoopSetup(_LightPositions, LightCounter, count, i); //defines distanceFromLight, contrib
float distanceFromLight = length(i.worldPos - q);
if (distanceFromLight > _LightCutoffDistance) continue;
Lambert(_LightPositions[LightCounter].xyz ,i, N);
float sd = 0.0;
float contrib = 0.0;
LightTypeCalculations(_LightColors, LightCounter, i, NdotL, dIntensity, _LightPositions[LightCounter].a, _LightPositions[LightCounter].xyz);
float invSqMul = max(1e-4, _InverseSqareMultiplier);
//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