Created
August 11, 2017 15:21
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| #define HARDNESS_EXPONENT_BASE 0.125 | |
| half calcSunSpot(half3 sunDirPos, half3 skyDirPos) | |
| { | |
| half3 delta = sunDirPos - skyDirPos; | |
| half dist = length(delta); | |
| half spot = 1.0 - smoothstep(0.0, _SunSize, dist); | |
| return 1.0 - pow(HARDNESS_EXPONENT_BASE, spot * _SunHardness); | |
| } |
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