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Moved the settings around a bit to highlight the peak luminance and paper white luminance a bit more Add the differing phosphor sets - these override the standards primaries set by the colour system

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MajorPainTheCactus 2023-09-10 21:57:32 +01:00
parent 94a7736c65
commit d2e2d77a6d
3 changed files with 54 additions and 13 deletions
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2
hdr/shaders/crt-sony-megatron-source-pass.slang
View file

@ -34,6 +34,7 @@ layout(push_constant) uniform Push
float hcrt_lcd_resolution;
float hcrt_lcd_subpixel;
float hcrt_colour_system;
float hcrt_phosphor_set;
float hcrt_expand_gamut;
float hcrt_white_temperature_D65;
float hcrt_white_temperature_D93;
@ -59,6 +60,7 @@ layout(std140, set = 0, binding = 0) uniform UBO
#define HCRT_HDR params.hcrt_hdr
#define HCRT_OUTPUT_COLOUR_SPACE params.hcrt_colour_space
#define HCRT_CRT_COLOUR_SYSTEM params.hcrt_colour_system
#define HCRT_CRT_PHOSPHOR_SET params.hcrt_phosphor_set
#define HCRT_WHITE_TEMPERATURE_D65 params.hcrt_white_temperature_D65
#define HCRT_WHITE_TEMPERATURE_D93 params.hcrt_white_temperature_D93
#define HCRT_BRIGHTNESS params.hcrt_brightness

43
hdr/shaders/include/colour_grade.h
View file

@ -1,5 +1,6 @@
#define kColourSystems 4
#define kPhosphorSets 5
#define kD50 5003.0f
#define kD55 5503.0f
@ -7,6 +8,8 @@
#define kD75 7504.0f
#define kD93 9305.0f
// Input Colour Standards
const mat3 k709_to_XYZ = mat3(
0.412391f, 0.357584f, 0.180481f,
0.212639f, 0.715169f, 0.072192f,
@ -22,6 +25,40 @@ const mat3 kNTSC_to_XYZ = mat3(
0.212376f, 0.701060f, 0.086564f,
0.018739f, 0.111934f, 0.958385f);
// Phosphor Sets - These override the colour standards above when used
// NTSC-J P22
const mat3 kNTSCJ_P22_to_XYZ = mat3(
0.458432f, 0.309549f, 0.182474f,
0.256722f, 0.668848f, 0.074430f,
0.018337f, 0.127136f, 0.943584f);
//P22 (80’s)
const mat3 kP2280_to_XYZ = mat3(
0.460844f, 0.307613f, 0.181910f,
0.244311f, 0.676311f, 0.079378f,
0.007123f, 0.106901f, 0.975034f);
//P22 (90’s/tinted phosphors)
const mat3 kP2290_to_XYZ = mat3(
0.404151f, 0.354887f, 0.191418f,
0.201984f, 0.714530f, 0.083485f,
0.000607f, 0.062960f, 1.025491f);
//RPTV (late 90’s/early 00’s)
const mat3 kRPTV00_to_XYZ = mat3(
0.331718f, 0.429476f, 0.189261f,
0.173634f, 0.738044f, 0.088322f,
0.012958f, 0.091941f, 0.984159f);
// NTSC-FCC 1953 Standard Phosphor
const mat3 k1953_to_XYZ = mat3(
0.588010f, 0.179133f, 0.183224f,
0.289661f, 0.605640f, 0.104699f,
0.000000f, 0.068241f, 1.020817f);
// Output Colour Standards
const mat3 kXYZ_to_709 = mat3(
3.240970f, -1.537383f, -0.498611f,
-0.969244f, 1.875968f, 0.041555f,
@ -32,7 +69,8 @@ const mat3 kXYZ_to_DCIP3 = mat3 (
-0.8294889696f, 1.7626640603f, 0.0236246858f,
0.0358458302f, -0.0761723893f, 0.9568845240f);
const mat3 kColourGamut[kColourSystems] = { k709_to_XYZ, kPAL_to_XYZ, kNTSC_to_XYZ, kNTSC_to_XYZ };
const mat3 kStandardsColourGamut[kColourSystems] = { k709_to_XYZ, kPAL_to_XYZ, kNTSC_to_XYZ, kNTSC_to_XYZ };
const mat3 kPhosphorColourGamut[kPhosphorSets] = { kNTSCJ_P22_to_XYZ, kP2280_to_XYZ, kP2290_to_XYZ, kRPTV00_to_XYZ, k1953_to_XYZ };
//const float kTemperatures[kColourSystems] = { kD65, kD65, kD65, kD93 };
@ -160,6 +198,7 @@ vec3 BrightnessContrastSaturation(const vec3 xyz)
vec3 ColourGrade(const vec3 colour)
{
const uint colour_system = uint(HCRT_CRT_COLOUR_SYSTEM);
const uint phosphor_set = uint(HCRT_CRT_PHOSPHOR_SET);
const float temperature[kColourSystems] = { HCRT_WHITE_TEMPERATURE_D65, HCRT_WHITE_TEMPERATURE_D65, HCRT_WHITE_TEMPERATURE_D65, HCRT_WHITE_TEMPERATURE_D93 };
@ -167,7 +206,7 @@ vec3 ColourGrade(const vec3 colour)
const vec3 linear = r601r709ToLinear(white_point); //pow(white_point, vec3(HCRT_GAMMA_IN));
const vec3 xyz = linear * kColourGamut[colour_system];
const vec3 xyz = phosphor_set == 0 ? linear * kStandardsColourGamut[colour_system] : linear * kPhosphorColourGamut[phosphor_set - 1];
const vec3 graded = BrightnessContrastSaturation(xyz);

22
hdr/shaders/include/parameters.h
View file

@ -1,7 +1,3 @@
#pragma parameter hcrt_title "SONY MEGATRON COLOUR VIDEO MONITOR" 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_space0 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_support0 "SDR mode: Turn up your TV's brightness as high as possible" 0.0 0.0 0.0001 0.0001
@ -17,23 +13,27 @@
#pragma parameter hcrt_space3 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_user_settings "YOUR DISPLAY'S SETTINGS:" 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_hdr " SDR | HDR" 1.0 0.0 1.0 1.0
#pragma parameter hcrt_colour_accurate " Mask Accurate/Colour Accurate" 1.0 0.0 1.0 1.0
#pragma parameter hcrt_space4 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_max_nits " HDR: Display's Peak Luminance" 1000.0 0.0 10000.0 10.0
#pragma parameter hcrt_paper_white_nits " HDR: Display's Paper White Luminance" 200.0 0.0 10000.0 10.0
#pragma parameter hcrt_expand_gamut " HDR: Original/Vivid" 0.0 0.0 1.0 1.0
#pragma parameter hcrt_space5 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_colour_space " SDR: Display's Colour Space: r709 | sRGB | DCI-P3" 1.0 0.0 2.0 1.0
#pragma parameter hcrt_r709_gamma_out " SDR: r709 Gamma" 2.22 1.0 5.0 0.01
#pragma parameter hcrt_srgb_gamma_out " SDR: sRGB Gamma" 2.4 1.0 5.0 0.01
#pragma parameter hcrt_p3_gamma_out " SDR: DCI-P3 Gamma" 2.6 1.0 5.0 0.01
#pragma parameter hcrt_r709_gamma_cutoff " SDR: r709 Gamma Cutoff (x1000)" 1.0 0.0 100.0 1.00
#pragma parameter hcrt_srgb_gamma_cutoff " SDR: sRGB Gamma Cutoff (x1000)" 1.0 0.0 100.0 1.00
#pragma parameter hcrt_max_nits " HDR: Display's Peak Luminance" 1000.0 0.0 10000.0 10.0
#pragma parameter hcrt_paper_white_nits " HDR: Display's Paper White Luminance" 200.0 0.0 10000.0 10.0
#pragma parameter hcrt_expand_gamut " HDR: Original/Vivid" 0.0 0.0 1.0 1.0
#pragma parameter hcrt_space6 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_lcd_resolution " Display's Resolution: 1080p | 4K | 8K" 1.0 0.0 2.0 1.0
#pragma parameter hcrt_lcd_subpixel " Display's Subpixel Layout: RGB | RWBG (OLED) | BGR" 0.0 0.0 2.0 1.0
#pragma parameter hcrt_space4 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_colour_accurate " Mask Accurate/Colour Accurate" 1.0 0.0 1.0 1.0
#pragma parameter hcrt_space7 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_developer_settings "CRT SETTINGS:" 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_crt_screen_type " Screen Type: APERTURE GRILLE | SHADOW MASK | SLOT MASK" 0.0 0.0 2.0 1.0
#pragma parameter hcrt_crt_resolution " Resolution: 300TVL | 600TVL | 800TVL | 1000TVL" 1.0 0.0 3.0 1.0
#pragma parameter hcrt_colour_system " Colour System: r709 | PAL | NTSC-U | NTSC-J" 2.0 0.0 3.0 1.0
#pragma parameter hcrt_phosphor_set " Phosphors: NONE | P22-J | P22-80 | P22-90 | RPTV | 1953" 0.0 0.0 5.0 1.0
#pragma parameter hcrt_white_temperature_D65 " D65 White Temperature (Kelvin)" 6504.0 0.0 18500.0 100.0
#pragma parameter hcrt_white_temperature_D93 " D93 White Temperature (Kelvin)" 9305.0 0.0 18500.0 100.0
#pragma parameter hcrt_brightness " Brightness" 0.0 -1.0 1.0 0.01
@ -43,7 +43,7 @@
#pragma parameter hcrt_gamma_cutoff " Inverse Gamma Cutoff (x1000)" 1.0 0.0 100.0 1.0
#pragma parameter hcrt_pin_phase " Pin Phase" 0.00 -0.2 0.2 0.01
#pragma parameter hcrt_pin_amp " Pin Amp" 0.00 -0.2 0.2 0.01
#pragma parameter hcrt_space5 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_space8 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_developer_settings0 " VERTICAL SETTINGS:" 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_v_size " Vertical Size" 1.00 0.8 1.2 0.01
#pragma parameter hcrt_v_cent " Vertical Center" 0.00 -200.0 200.0 1.0
@ -59,7 +59,7 @@
#pragma parameter hcrt_blue_scanline_min " Blue Scanline Min" 0.50 0.0 2.0 0.01
#pragma parameter hcrt_blue_scanline_max " Blue Scanline Max" 1.00 0.0 2.0 0.01
#pragma parameter hcrt_blue_scanline_attack " Blue Scanline Attack" 0.20 0.0 1.0 0.01
#pragma parameter hcrt_space6 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_space9 " " 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_developer_settings1 " HORIZONTAL SETTINGS:" 0.0 0.0 0.0001 0.0001
#pragma parameter hcrt_h_size " Horizontal Size" 1.00 0.8 1.2 0.01
#pragma parameter hcrt_h_cent " Horizontal Center" 0.00 -200.0 200.0 1.0