54 lines
2.2 KiB
HLSL
54 lines
2.2 KiB
HLSL
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#ifndef POI_SPAWN_IN_FRAG
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#define POI_SPAWN_FRAG
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#ifndef SPAWN_IN_VARIABLES
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#define SPAWN_IN_VARIABLES
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float3 _SpawnInGradientStart;
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float3 _SpawnInGradientFinish;
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fixed _SpawnInAlpha;
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fixed _SpawnInNoiseIntensity;
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float3 _SpawnInEmissionColor;
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float _SpawnInEmissionOffset;
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float _SpawnInVertOffset;
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float _SpawnInVertOffsetOffset;
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float _EnableScifiSpawnIn;
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#endif
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UNITY_DECLARE_TEX2D_NOSAMPLER(_SpawnInNoise); float4 _SpawnInNoise_ST;
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float calculateGradientValueFrag(float3 start, float3 finish, float3 localPos)
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{
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return inverseLerp3(start, finish, localPos);
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}
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void applySpawnIn(inout float4 finalColor, inout float3 spawnInEmission, float2 uv, float3 localPos)
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{
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UNITY_BRANCH
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if (_EnableScifiSpawnIn)
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{
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float noise = UNITY_SAMPLE_TEX2D_SAMPLER(_SpawnInNoise, _MainTex, TRANSFORM_TEX(uv, _SpawnInNoise)).r * _SpawnInAlpha * _SpawnInNoiseIntensity;
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float gradient = calculateGradientValueFrag(_SpawnInGradientStart, _SpawnInGradientFinish, localPos);
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float inverseGradient = 1 - gradient;
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float alpha = gradient - _SpawnInAlpha - noise;
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spawnInEmission = saturate(inverseGradient + _SpawnInAlpha + _SpawnInEmissionOffset +noise - 1) * _SpawnInEmissionColor;
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#if defined(TRANSPARENT) || defined(CUTOUT)
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clip(ceil(alpha) - 0.001);
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#endif
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}
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}
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void applySpawnInShadow(float2 uv, float3 localPos)
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{
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UNITY_BRANCH
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if(_EnableScifiSpawnIn)
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{
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float noise = UNITY_SAMPLE_TEX2D_SAMPLER(_SpawnInNoise, _MainTex, TRANSFORM_TEX(uv, _SpawnInNoise)).r * _SpawnInAlpha * _SpawnInNoiseIntensity;
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float gradient = calculateGradientValueFrag(_SpawnInGradientStart, _SpawnInGradientFinish, localPos);
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float alpha = gradient - _SpawnInAlpha - noise + length(_SpawnInVertOffset);
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#if defined(TRANSPARENT) || defined(CUTOUT)
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clip(ceil(alpha) - 0.001);
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#endif
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}
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}
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#endif
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