Pastel

https://scrapbox.io/files/69135745a745e9f8171b5948.png

爽やかな感じになるね

.cube形式のLUTにしました

AviUtl2以外でも使用できるのでお好きにお使いください

code:lua

--[[

Pastel cc0

]]

--information:Pastel v0.1.0 by Korarei

--label:色調整

--track0:Intensity,0,100,100,0.01

--[[pixelshader@pastel:

Texture2D src : register(t0);

cbuffer params : register(b0) {

float intensity;

};

static const float eps = 1.0e-5;

static const float3x3 rgb2yuv = float3x3(0.2126, 0.7152, 0.0722, -0.1146, -0.3854, 0.5, 0.5, -0.4542, -0.0458);

static const float3x3 yuv2rgb = float3x3(1.0, 0.0, 1.5748, 1.0, -0.1873, -0.4681, 1.0, 1.8556, 0.0);

float4 pastel(float4 pos : SV_Position) : SV_Target {

float4 base = src.Load(int3(pos.xy, 0));

base = saturate(float4(base.rgb * rcp(max(base.a, eps)), base.a));

float3 blend = mul(rgb2yuv, base.rgb);

blend.x = 0.7278;

blend = mul(yuv2rgb, blend.rgb);

blend = lerp(1.0 - 2.0 * (1.0 - base.rgb) * (1.0 - blend), 2.0 * base.rgb * blend, step(blend, 0.5));

return float4(lerp(base.rgb, saturate(blend), intensity) * base.a, base.a);

}

]]

obj.pixelshader("pastel", "object", "object", {

obj.track0 * 0.01

})