82 lines
2.7 KiB
Plaintext
82 lines
2.7 KiB
Plaintext
Shader "Custom/AtmosphereLayer"
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{
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Properties
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{
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_RimColor("Rim Color", Color) = (0.4, 0.75, 1.0, 1.0)
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_CoreColor("Core Color", Color) = (0.0, 0.1, 0.4, 0.3)
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_RimPower("Rim Power", Range(0.5, 8.0)) = 1.5
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_RimIntensity("Rim Intensity", Range(0.0, 5.0)) = 2.5
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_CoreIntensity("Core Intensity", Range(0.0, 2.0)) = 0.4
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_PulseSpeed("Pulse Speed", Range(0.0, 3.0)) = 0.8
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_PulseStrength("Pulse Strength", Range(0.0, 1.0)) = 0.15
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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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};
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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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};
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CBUFFER_START(UnityPerMaterial)
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half4 _RimColor;
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half4 _CoreColor;
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float _RimPower;
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float _RimIntensity;
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float _CoreIntensity;
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float _PulseSpeed;
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float _PulseStrength;
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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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return OUT;
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}
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half4 frag(Varyings IN) : SV_Target
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{
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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 col = lerp(_CoreColor.rgb * core, _RimColor.rgb * rim, fresnel);
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float alpha = saturate(rim * 0.8 + core * _CoreColor.a);
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return half4(col, alpha);
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}
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ENDHLSL
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}
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}
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} |