Re: [HLSL CODE] 3D LUT
Posted: 01 Nov 2016, 17:25
Sweet, thank you.
But before going on, thank you kingeric1992 for reading my original blurb, and then updating your original post with new code. Also, thank you TKTK for your original code, which I lightly modified for use in my own ENBs.
Now, here's a simple LUT code for day/night/interior that is light on modifications, and doesn't require helper functions. I'll see about adding a dense-packed, neutral LUT at a later date. Meanwhile, if you're interested in seeing what you can do with a DNI set of 256x256 palettes, check out my tutorial.
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When customizing a LUT I noticed it would probably be better with a LUT for Day, Night, and Interior. Here's a simple way to do it (thanks, TKTK!):
In your textures section, add the following lines above texture2D texs7; -
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texture2D texs5 < string ResourceName="enbpalette__.tga"; >; // ENB interior palette (Added.)
texture2D texs6 < string ResourceName="enbpalette_.tga"; >; // ENB night palette (Added.)
Next, add the following lines to the sampler section -
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sampler2D _s5 = sampler_state
{
Texture = <texs5>;
MinFilter = LINEAR;
MagFilter = LINEAR;
MipFilter = NONE;
AddressU = Clamp;
AddressV = Clamp;
SRGBTexture = FALSE;
MaxMipLevel = 0;
MipMapLodBias = 0;
};
sampler2D _s6 = sampler_state
{
Texture = <texs6>;
MinFilter = LINEAR;
MagFilter = LINEAR;
MipFilter = NONE;
AddressU = Clamp;
AddressV = Clamp;
SRGBTexture = FALSE;
MaxMipLevel = 0;
MipMapLodBias = 0;
};
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#ifdef E_CC_PALETTE
float3 CLuTD1; // CLuT for Days
float3 CLuTD2;
float3 CLuTN1; // CLuT for Nights
float3 CLuTN2;
float3 CLuTI1; // CLuT for Interiors
float3 CLuTI2;
float3 CLuTA1; // CLuT Averages
float3 CLuTA2;
float2 CLut_pSize = float2(0.00390625, 0.0625); // 1 / float2(256, 16);
color.rgb = saturate(color.rgb);
color.b *= 15;
float4 CLut_UV = 0;
CLut_UV.w = floor(color.b);
CLut_UV.xy = color.rg * 15 * CLut_pSize + 0.5 * CLut_pSize ;
CLut_UV.x += CLut_UV.w * CLut_pSize.y;
CLuTD1.rgb = tex2Dlod(_s7, CLut_UV.xyzz).rgb;
CLuTD2.rgb = tex2Dlod(_s7, CLut_UV.xyzz + float4(CLut_pSize.y, 0, 0, 0)).rgb;
CLuTN1.rgb = tex2Dlod(_s6, CLut_UV.xyzz).rgb;
CLuTN2.rgb = tex2Dlod(_s6, CLut_UV.xyzz + float4(CLut_pSize.y, 0, 0, 0)).rgb;
CLuTI1.rgb = tex2Dlod(_s5, CLut_UV.xyzz).rgb;
CLuTI2.rgb = tex2Dlod(_s5, CLut_UV.xyzz + float4(CLut_pSize.y, 0, 0, 0)).rgb;
CLuTA1.rgb = lerp( lerp(CLuTN1.rgb, CLuTD1.rgb, ENightDayFactor), CLuTI1.rgb, EInteriorFactor);
CLuTA2.rgb = lerp( lerp(CLuTN2.rgb, CLuTD2.rgb, ENightDayFactor), CLuTI2.rgb, EInteriorFactor);
color.rgb = lerp(CLuTA1.rgb, CLuTA2.rgb, color.b - CLut_UV.w);
#endif //E_CC_PALETTE