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#ifndef TEXTURE_BLENDING
#define TEXTURE_BLENDING
int _Blend;
float4 _BlendTextureColor;
sampler2D _BlendTexture; float4 _BlendTexture_ST;
sampler2D _BlendNoiseTexture; float4 _BlendNoiseTexture_ST;
float _BlendAlpha;
float _BlendTiling;
float _AutoBlend;
float _AutoBlendSpeed;
float _AutoBlendDelay;
float blendAlpha = 0;
void calculateTextureBlending(float blendAlpha, inout float4 mainTexture, inout float4 diffuse, float2 uv)
{
UNITY_BRANCH
if (_Blend != 0)
{
float blendNoise = tex2D(_BlendNoiseTexture, TRANSFORM_TEX(uv, _BlendNoiseTexture));
if(_AutoBlend > 0)
{
blendAlpha = (clamp(sin(_Time.y * _AutoBlendSpeed / _AutoBlendDelay) * (_AutoBlendDelay + 1), -1, 1) + 1) / 2;
}
blendAlpha = lerp(saturate((blendNoise - 1) + blendAlpha * 2), step(blendAlpha * 1.001, blendNoise), _Blend - 1);
float4 blendCol = tex2D(_BlendTexture, TRANSFORM_TEX(uv, _BlendTexture)) * _BlendTextureColor;
diffuse = lerp(diffuse, blendCol, blendAlpha);
mainTexture.a = lerp(mainTexture.a, blendCol.a, blendAlpha);
}
}
#endif
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