?原文链接：https://blog.csdn.net/candycat1992/article/details/44039077
? ? #define vec2 float2
? ? #define vec3 float3
? ? #define vec4 float4
? ? #define mat2 float2x2
? ? #define mat3 float3x3
? ? #define mat4 float4x4
? ? #define iGlobalTime _Time.y
? ? #define mod fmod
? ? #define mix lerp
? ? #define fract frac
? ? #define texture2D tex2D
? ? #define iResolution _ScreenParams
? ? #define gl_FragCoord ((_iParam.scrPos.xy/_iParam.scrPos.w) * _ScreenParams.xy)
? ? #define PI2 6.28318530718
? ? #define pi 3.14159265358979
? ? #define halfpi (pi * 0.5)
? ? #define oneoverpi (1.0 / pi)?把以上代码直接粘贴到Unity shader中即可
?
