Created
February 13, 2020 07:53
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球にCubemapを貼るだけのシェーダー
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| // Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt) | |
| //Based on Unity built-in shader source. | |
| Shader "Custom/CubemapOnSphere" { | |
| Properties { | |
| _Tint ("Tint Color", Color) = (.5, .5, .5, .5) | |
| [Gamma] _Exposure ("Exposure", Range(0, 8)) = 1.0 | |
| _Rotation ("Rotation", Range(0, 360)) = 0 | |
| [NoScaleOffset] _Tex ("Cubemap (HDR)", Cube) = "grey" {} | |
| } | |
| SubShader { | |
| Tags { "Queue"="Geometry" "RenderType"="Opaque" } | |
| Cull Front | |
| Pass { | |
| CGPROGRAM | |
| #pragma vertex vert | |
| #pragma fragment frag | |
| #pragma target 2.0 | |
| #include "UnityCG.cginc" | |
| samplerCUBE _Tex; | |
| half4 _Tex_HDR; | |
| half4 _Tint; | |
| half _Exposure; | |
| float _Rotation; | |
| float3 RotateAroundYInDegrees (float3 vertex, float degrees) | |
| { | |
| float alpha = degrees * UNITY_PI / 180.0; | |
| float sina, cosa; | |
| sincos(alpha, sina, cosa); | |
| float2x2 m = float2x2(cosa, -sina, sina, cosa); | |
| return float3(mul(m, vertex.xz), vertex.y).xzy; | |
| } | |
| struct appdata { | |
| float4 vertex : POSITION; | |
| UNITY_VERTEX_INPUT_INSTANCE_ID | |
| }; | |
| struct v2f { | |
| float4 vertex : SV_POSITION; | |
| float3 texcoord : TEXCOORD0; | |
| UNITY_VERTEX_OUTPUT_STEREO | |
| }; | |
| v2f vert (appdata v) | |
| { | |
| v2f o; | |
| UNITY_SETUP_INSTANCE_ID(v); | |
| UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o); | |
| float3 rotated = RotateAroundYInDegrees(v.vertex, _Rotation); | |
| o.vertex = UnityObjectToClipPos(rotated); | |
| o.texcoord = v.vertex.xyz; | |
| return o; | |
| } | |
| fixed4 frag (v2f i) : SV_Target | |
| { | |
| half4 tex = texCUBE (_Tex, i.texcoord); | |
| half3 c = DecodeHDR (tex, _Tex_HDR); | |
| c = c * _Tint.rgb * unity_ColorSpaceDouble.rgb; | |
| c *= _Exposure; | |
| return half4(c, 1); | |
| } | |
| ENDCG | |
| } | |
| } | |
| Fallback Off | |
| } |
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