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feat(color): matrix stuff #107

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Jan 6, 2025
Merged

feat(color): matrix stuff #107

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49 changes: 41 additions & 8 deletions src/shaders/color.hlsl
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Original file line number Diff line number Diff line change
Expand Up @@ -76,17 +76,50 @@ static const float3x3 XYZ_TO_DISPLAYP3_MAT = float3x3(
-0.8294889696f, 1.7626640603f, 0.0236246858f,
0.0358458302f, -0.0761723893f, 0.9568845240);

// With Bradford
static const float3x3 BT470_PAL_TO_BT709_MAT = float3x3(
1.04404318f, -0.0440432094f, 0.f,
0.f, 1.f, 0.f,
0.f, 0.0117933787f, 0.988206624f);

static const float3x3 BT601_NTSC_U_TO_BT709_MAT = float3x3(
0.939542055f, 0.0501813553f, 0.0102765792f,
0.0177722238f, 0.965792834f, 0.0164349135f,
-0.00162159989f, -0.00436974968f, 1.00599133f);

// chromatic adaptation method: vK20
// chromatic adaptation transform: CAT02
static const float3x3 ARIB_TR_B09_D93_TO_BT709_D65_MAT = float3x3(
0.897676467f, -0.129552796f, 0.00210331683f,
0.0400346256f, 0.970825016f, 0.00575808621f,
0.00136304146f, 0.0323694758f, 1.48031127f);

// chromatic adaptation method: vK20
// chromatic adaptation transform: CAT02
static const float3x3 ARIB_TR_B09_9300K_27_MPCD_TO_BT709_D65_MAT = float3x3(
0.783664464f, -0.178418442f, 0.00223907502f,
0.0380520112f, 1.03919935f, 0.00543892197f,
0.000365949701f, 0.0269012674f, 1.31387364f);

// chromatic adaptation method: vK20
// chromatic adaptation transform: CAT02
static const float3x3 BT709_D93_TO_BT709_D65_MAT = float3x3(
0.968665063f, -0.0445920750f, -0.00335013796f,
0.00231231073f, 1.00339293f, 0.0000867190974f,
0.00326244067f, 0.0161521788f, 1.11353743f);

// chromatic adaptation method: von Kries
// chromatic adaptation transform: Bradford
static const float3x3 D65_TO_D60_CAT = float3x3(
1.01303, 0.00610531, -0.014971,
0.00769823, 0.998165, -0.00503203,
-0.00284131, 0.00468516, 0.924507);
1.01303493f, 0.00610525766f, -0.0149709433f,
0.00769822997f, 0.998163342f, -0.00503203831f,
-0.00284131732f, 0.00468515651f, 0.924506127f);

// With Bradford
// chromatic adaptation method: von Kries
// chromatic adaptation transform: Bradford
static const float3x3 D60_TO_D65_MAT = float3x3(
0.98722400, -0.00611327, 0.0159533,
-0.00759836, 1.00186000, 0.0053302,
0.00307257, -0.00509595, 1.0816800);
0.987223982f, -0.00611322838f, 0.0159532874f,
-0.00759837171f, 1.00186145f, 0.00533003592f,
0.00307257706f, -0.00509596150f, 1.08168065f);

static const float3x3 IDENTITY_MAT = float3x3(
1.0f, 0.0f, 0.0f,
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