58 lines
3.3 KiB
Plaintext
58 lines
3.3 KiB
Plaintext
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m_Name: Bicubic Precompute
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m_functionInfo: "// Made with Amplify Shader Editor\n// Available at the Unity Asset
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= UV * TexelSize.zw - 0.5@$float2 f = frac( UV )@$UV -= f@$$float4 xn = float4(
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1.0, 2.0, 3.0, 4.0 ) - f.xxxx@$float4 yn = float4( 1.0, 2.0, 3.0, 4.0 ) - f.yyyy@$$float4
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xs = xn * xn * xn@$float4 ys = yn * yn * yn@$$float3 xv = float3( xs.x, xs.y -
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4.0 * xs.x, xs.z - 4.0 * xs.y + 6.0 * xs.x )@$float3 yv = float3( ys.x, ys.y -
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4.0 * ys.x, ys.z - 4.0 * ys.y + 6.0 * ys.x )@$float4 xc = float4( xv.xyz, 6.0
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xc.x + xc.y, xc.z + xc.w, yc.x + yc.y, yc.z + yc.w )@$$float w0 = s.x / ( s.x
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m_description: 'Precomputation step (1 of 2) for bicubic sampling.
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IMPORTANT
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This node only precomputes data that is fed into the "Bicubic Sample" nodes using
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Fetch sampling mode. All textures sharing the same precomputation step must also
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share the same size and UV coordinates. '
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