Initial commit

Shader/LitParticles.shader

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+Shader "DeMuenu/World/Hoppou/Particles/LitParticles"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+        _Color ("Color", Color) = (1,1,1,1)
+
+        
+        //MoonsLight
+        _InverseSqareMultiplier ("Inverse Square Multiplier", Float) = 1
+        _LightCutoffDistance ("Light Cutoff Distance", Float) = 100
+        //MoonsLight END
+
+
+
+    }
+    SubShader
+    {
+        Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
+        Blend SrcAlpha One
+        Cull Off
+        Lighting Off
+        ZWrite Off
+        LOD 100
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+
+            #define MAX_LIGHTS 80 // >= maxPlayers in script
+
+            #include "UnityCG.cginc"
+
+
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+
+                float4 color  : COLOR;
+
+                float3 normal : NORMAL;
+
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+                //MoonsLight
+                float3 worldPos : TEXCOORD2;
+
+                float4 color : COLOR;
+
+                float3 worldNormal: TEXCOORD3;
+                //MoonsLight END
+            };
+
+            sampler2D _MainTex;
+            float4 _MainTex_ST;
+            sampler2D _MultTex;
+            float4 _MultTex_ST;
+            float4 _Color;
+
+
+            sampler2D _EmmisiveText;
+            float4 _EmmisiveText_ST;
+            float4 _EmmissiveColor;
+            float _EmmissiveStrength;
+
+
+            //MoonsLight
+            float _InverseSqareMultiplier;
+            float _LightCutoffDistance;            
+            
+            float4 _LightPositions[MAX_LIGHTS]; // xyz = position
+            float4 _LightColors[MAX_LIGHTS]; // xyz = position
+            float4 _LightDirections[MAX_LIGHTS]; // xyz = direction, w = cos(halfAngle)
+            float _LightType[MAX_LIGHTS]; // 0 = sphere, 1 = cone
+            float  _PlayerCount;                  // set via SetFloat
+            //MoonsLight END
+
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+
+
+                //MoonsLight
+                float4 wp = mul(unity_ObjectToWorld, v.vertex);
+                o.worldPos = wp.xyz;
+                o.color = v.color;
+                o.worldNormal = UnityObjectToWorldNormal(v.normal);
+                //MoonsLight END
+                
+
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                // sample the texture
+                fixed4 col = tex2D(_MainTex, i.uv);
+
+
+                //MoonsLight
+                int count = (int)_PlayerCount;
+
+                float3 N = normalize(i.worldNormal); //for lambertian diffuse
+                // Example: compute distance to nearest player
+                float4 dmax = float4(0,0,0,1);
+                float dIntensity = 0;
+                [loop]
+                for (int idx = 0; idx < MAX_LIGHTS; idx++)
+                {
+                    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;
+                    
+
+                    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;
+
+
+
+                    dmax = dmax + contrib * float4(LightColor, 1) * NdotL; // accumulate light contributions
+
+                    
+
+
+                }
+                
+                //dmax.xyz = min(dmax * dIntensity, 1.0);
+                dmax.w = 1.0;
+                dmax = dmax;
+
+
+                //MoonsLight END
+
+
+
+                return col * _Color * min(dmax, 1.0) * i.color;
+
+            }
+            ENDCG
+        }
+    }
+
+    FallBack "Diffuse"
+}