118 lines
5.1 KiB
Plaintext
118 lines
5.1 KiB
Plaintext
Shader "Custom/SaturnAtmosphereLayer"
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{
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Properties
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{
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_MainTex("Main Texture", 2D) = "white" {}
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_SecondTex("Second Texture", 2D) = "white" {}
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_FogTex("Fog Texture", 2D) = "white" {}
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_RimColor("Rim Color", Color) = (0.9, 0.8, 0.5, 1.0)
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_CoreColor("Core Color", Color) = (0.7, 0.6, 0.3, 0.3)
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_FogColor("Fog Color", Color) = (0.95, 0.9, 0.75, 0.2)
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_RimPower("Rim Power", Range(0.5, 8.0)) = 2.0
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_RimIntensity("Rim Intensity", Range(0.0, 5.0)) = 1.5
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_CoreIntensity("Core Intensity", Range(0.0, 2.0)) = 0.3
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_ScrollSpeed1("Scroll Speed 1", Range(-1.0, 1.0)) = 0.01
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_ScrollSpeed2("Scroll Speed 2", Range(-1.0, 1.0)) = -0.007
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_FogScrollSpeed("Fog Scroll Speed", Range(-1.0, 1.0)) = 0.003
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_PulseSpeed("Pulse Speed", Range(0.0, 3.0)) = 0.4
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_PulseStrength("Pulse Strength", Range(0.0, 1.0)) = 0.08
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_TextureBlend("Texture Blend", Range(0.0, 1.0)) = 0.5
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_TextureInfluence("Texture Influence", Range(0.0, 1.0)) = 0.5
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_FogInfluence("Fog Influence", Range(0.0, 1.0)) = 0.3
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}
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SubShader
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{
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Tags { "Queue" = "Transparent" "RenderType" = "Transparent" "RenderPipeline" = "UniversalPipeline" }
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Blend SrcAlpha OneMinusSrcAlpha
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ZWrite Off
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Cull Back
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Pass
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{
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HLSLPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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struct Attributes
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{
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float4 positionOS : POSITION;
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float3 normalOS : NORMAL;
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float2 uv : TEXCOORD0;
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};
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struct Varyings
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{
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float4 positionHCS : SV_POSITION;
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float3 normalWS : TEXCOORD0;
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float3 viewDirWS : TEXCOORD1;
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float3 positionWS : TEXCOORD2;
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float2 uv : TEXCOORD3;
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};
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TEXTURE2D(_MainTex);
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SAMPLER(sampler_MainTex);
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TEXTURE2D(_SecondTex);
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SAMPLER(sampler_SecondTex);
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TEXTURE2D(_FogTex);
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SAMPLER(sampler_FogTex);
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CBUFFER_START(UnityPerMaterial)
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float4 _MainTex_ST;
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float4 _SecondTex_ST;
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float4 _FogTex_ST;
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half4 _RimColor;
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half4 _CoreColor;
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half4 _FogColor;
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float _RimPower;
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float _RimIntensity;
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float _CoreIntensity;
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float _ScrollSpeed1;
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float _ScrollSpeed2;
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float _FogScrollSpeed;
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float _PulseSpeed;
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float _PulseStrength;
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float _TextureBlend;
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float _TextureInfluence;
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float _FogInfluence;
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CBUFFER_END
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Varyings vert(Attributes IN)
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{
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Varyings OUT;
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OUT.positionHCS = TransformObjectToHClip(IN.positionOS.xyz);
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OUT.normalWS = TransformObjectToWorldNormal(IN.normalOS);
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OUT.positionWS = TransformObjectToWorld(IN.positionOS.xyz);
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OUT.viewDirWS = normalize(_WorldSpaceCameraPos - OUT.positionWS);
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OUT.uv = TRANSFORM_TEX(IN.uv, _MainTex);
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return OUT;
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}
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half4 frag(Varyings IN) : SV_Target
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{
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float2 uv1 = IN.uv + float2(_ScrollSpeed1 * _Time.y, 0);
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float2 uv2 = IN.uv + float2(_ScrollSpeed2 * _Time.y, 0);
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float2 uvFog = IN.uv + float2(0, _FogScrollSpeed * _Time.y);
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half4 tex1 = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, uv1);
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half4 tex2 = SAMPLE_TEXTURE2D(_SecondTex, sampler_SecondTex, uv2);
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half4 texFog = SAMPLE_TEXTURE2D(_FogTex, sampler_FogTex, uvFog);
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half4 texBlended = lerp(tex1, tex2, _TextureBlend);
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float3 normal = normalize(IN.normalWS);
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float3 viewDir = normalize(IN.viewDirWS);
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float fresnel = 1.0 - saturate(dot(normal, viewDir));
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float pulse = 1.0 + sin(_Time.y * _PulseSpeed) * _PulseStrength;
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float rim = pow(fresnel, _RimPower) * _RimIntensity * pulse;
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float core = (1.0 - fresnel) * _CoreIntensity;
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half3 baseCol = lerp(_CoreColor.rgb * core, _RimColor.rgb * rim, fresnel);
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half3 texCol = lerp(baseCol, texBlended.rgb * rim, _TextureInfluence);
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half3 finalCol = lerp(texCol, texFog.rgb * _FogColor.rgb, _FogInfluence * (1.0 - fresnel));
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float alpha = saturate(rim * 0.8 + core * _CoreColor.a);
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return half4(finalCol, alpha);
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}
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ENDHLSL
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}
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}
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} |