131 lines
3.6 KiB
Plaintext
131 lines
3.6 KiB
Plaintext
Shader "Enviro/Clouds Particles Advanced" {
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Properties {
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_CloudsColor("Color", Color) = (0.5,0.5,0.5,0.5)
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_MainTex ("Particle Texture", 2D) = "white" {}
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_InvFade ("Soft Particles Factor", Range(0.01,3.0)) = 1.0
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}
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Category {
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Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
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Blend SrcAlpha OneMinusSrcAlpha
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ColorMask RGB
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Cull Off Lighting Off ZWrite Off
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SubShader {
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Pass {
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#if ENVIRO_SIMPLE_FOG
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#pragma target 2.0
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#else
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#pragma target 3.0
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#endif
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#pragma multi_compile_particles
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#pragma multi_compile_fog
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#pragma multi_compile __ ENVIRO_SIMPLE_FOG
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#pragma multi_compile __ ENVIROVOLUMELIGHT
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#include "UnityCG.cginc"
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#if ENVIRO_SIMPLE_FOG
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uniform float3 _SunDir;
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uniform half4 _EnviroSkyFog;
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#else
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#include "Core/EnviroFogCore.cginc"
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#endif
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uniform sampler2D _MainTex;
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uniform fixed4 _CloudsColor;
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struct appdata_t {
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float4 vertex : POSITION;
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fixed4 color : COLOR;
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float2 texcoord : TEXCOORD0;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct v2f {
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float4 vertex : SV_POSITION;
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fixed4 color : COLOR;
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float2 texcoord : TEXCOORD0;
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UNITY_FOG_COORDS(1)
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float3 posWorld : TEXCOORD2;
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float4 uv : TEXCOORD3;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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float4 _MainTex_ST;
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v2f vert (appdata_t v)
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{
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v2f o;
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UNITY_SETUP_INSTANCE_ID(v); //Insert
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UNITY_INITIALIZE_OUTPUT(v2f, o); //Insert
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o); //Ins
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.posWorld = mul(unity_ObjectToWorld, v.vertex);
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o.color = v.color;
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o.texcoord = TRANSFORM_TEX(v.texcoord,_MainTex);
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o.uv = ComputeScreenPos(o.vertex);
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UNITY_TRANSFER_FOG(o,o.vertex);
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return o;
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}
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fixed4 TransparentParticleCloudsFog(fixed4 clr, float3 wPos, float2 uv)
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{
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float3 wsDir = wPos - _WorldSpaceCameraPos;
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float f = saturate((_EnviroSkyFog.x * (dot(normalize(wPos - _WorldSpaceCameraPos.xyz), float3(0, 1, 0)))) +_EnviroSkyFog.z);
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f = pow(f, _EnviroSkyFog.y);
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half fogFacSky = (clamp(f, 0, 1));
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fixed4 fogClr = fixed4(0, 0, 0, 0);
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fixed4 final = fixed4(0, 0, 0, 0);
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#if ENVIRO_SIMPLE_FOG
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fogClr = unity_FogColor * 2;
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final = lerp(fogClr, clr, fogFacSky);
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#else
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float2 sunDir;
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sunDir.x = saturate(_SunDir.y + 0.25);
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sunDir.y = saturate(clamp(1.0 - _SunDir.y, 0.0, 0.5));
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fogClr = ComputeScattering(normalize(wsDir), sunDir);
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#if ENVIROVOLUMELIGHT
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#if UNITY_SINGLE_PASS_STEREO
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float4 scaleOffset = unity_StereoScaleOffset[unity_StereoEyeIndex];
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uv = (uv - scaleOffset.zw) / scaleOffset.xy;
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#endif
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float4 volumeLighting = tex2D(_EnviroVolumeLightingTex, UnityStereoTransformScreenSpaceTex(uv));
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volumeLighting *= _EnviroParams.x;
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final = lerp(lerp(fogClr, fogClr + volumeLighting, _EnviroVolumeDensity), lerp(clr, clr + volumeLighting, _EnviroVolumeDensity), fogFacSky);
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#else
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final = lerp(fogClr, clr, fogFacSky);
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#endif
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#endif
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return final;
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}
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fixed4 frag (v2f i) : SV_Target
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{
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fixed4 col = 2.0f * i.color * tex2D(_MainTex, i.texcoord) * _CloudsColor;
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UNITY_APPLY_FOG(i.fogCoord, col);
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float3 wsDir = normalize(i.posWorld.xyz -_WorldSpaceCameraPos);
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float4 fog = TransparentParticleCloudsFog(col, i.posWorld,i.uv.xy / i.uv.w);
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//float alpha = clamp(col.a * clamp(wsDir.y*1.5, 0, 1),0,1);
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//if(wsDir.y + _WorldSpaceCameraPos.y < _WorldSpaceCameraPos.y)
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//alpha = col.a;
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return float4(fog.rgb, clamp(col.a * clamp(wsDir.y*1.5, 0, 1),0,1));
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}
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ENDCG
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}
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}
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}
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}
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