33 lines
1.0 KiB (Stored with Git LFS)
HLSL
33 lines
1.0 KiB (Stored with Git LFS)
HLSL
half4 SampleTextureWithScroll(sampler2D tex, float2 uv, half scrollXSpeed, half scrollYSpeed, float time)
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{
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uv.x += (time * scrollXSpeed) % 1;
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uv.y += (time * scrollYSpeed) % 1;
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return tex2D(tex, uv);
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}
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float2 RotateUvs(float2 uv, half rotation, half4 scaleAndTranslate)
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{
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half2 center = half2(0.5 * scaleAndTranslate.x + scaleAndTranslate.z, 0.5 * scaleAndTranslate.y + scaleAndTranslate.w);
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half cosAngle = cos(rotation);
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half sinAngle = sin(rotation);
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uv -= center;
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uv = mul(half2x2(cosAngle, -sinAngle, sinAngle, cosAngle), uv);
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uv += center;
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return uv;
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}
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half Rand(half2 seed, half offset) {
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return (frac(sin(dot(seed, half2(12.9898, 78.233))) * 43758.5453) + offset) % 1.0;
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}
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half Rand2(half2 seed, half offset) {
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return (frac(sin(dot(seed * floor(50 + (_Time.x % 1.0) * 12.), half2(127.1, 311.7))) * 43758.5453123) + offset) % 1.0;
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}
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half RemapFloat(half inValue, half inMin, half inMax, half outMin, half outMax){
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return outMin + (inValue - inMin) * (outMax - outMin) / (inMax - inMin);
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}
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half EaseOutQuint(half x) {
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return 1 - pow(1 - x, 5);
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} |