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https://github.com/italicsjenga/slang-shaders.git
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Merge pull request #112 from jdgleaver/simpletex-lcd-720p
(simpletex_lcd) Add simpletex_lcd_720p shaders + colour correction fixes
This commit is contained in:
commit
6e6db3e9d1
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@ -146,7 +146,7 @@ void main()
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vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
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// Darken colours (if required...) and apply colour correction
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + registers.DARKEN_COLOUR));
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + 0.5 + registers.DARKEN_COLOUR));
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colour.rgb = mat3(CC_R, CC_RG, CC_RB,
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CC_GR, CC_G, CC_GB,
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CC_BR, CC_BG, CC_B) * colour.rgb;
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@ -146,7 +146,7 @@ void main()
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vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
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// Darken colours (if required...) and apply colour correction
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + registers.DARKEN_COLOUR));
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + 0.5 + registers.DARKEN_COLOUR));
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colour.rgb = mat3(CC_R, CC_RG, CC_RB,
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CC_GR, CC_G, CC_GB,
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CC_BR, CC_BG, CC_B) * colour.rgb;
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@ -146,7 +146,7 @@ void main()
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vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
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// Darken colours (if required...) and apply colour correction
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + registers.DARKEN_COLOUR));
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA - 0.5 + registers.DARKEN_COLOUR));
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colour.rgb = mat3(CC_R, CC_RG, CC_RB,
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CC_GR, CC_G, CC_GB,
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CC_BR, CC_BG, CC_B) * colour.rgb;
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@ -146,7 +146,7 @@ void main()
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vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
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// Darken colours (if required...) and apply colour correction
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + registers.DARKEN_COLOUR));
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA - 0.5 + registers.DARKEN_COLOUR));
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colour.rgb = mat3(CC_R, CC_RG, CC_RB,
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CC_GR, CC_G, CC_GB,
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CC_BR, CC_BG, CC_B) * colour.rgb;
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@ -0,0 +1,200 @@
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#version 450
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/*
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simpletex_lcd_720p+gba-color - a simple, textured LCD shader intended for non-backlit systems.
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Designed for use at 720p, without integer scaling. Includes GBA colour correction.
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- Makes use of grid effect from lcd3x
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[original lcd3x code written by Gigaherz and released into the public domain]
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- Colour correction code taken from 'gba-color', written by hunterk, modified by Pokefan531
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and realeased into the public domain
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Other code by jdgleaver
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Usage notes:
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- Background texture size is hard-coded (I can't find a way to get this
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automatically...). User must ensure that 'BG_TEXTURE_SIZE' define is
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set appropriately.
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- Adjustable parameters:
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> GRID_INTENSITY: Sets overall visibility of grid effect
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- 1.0: Grid is shown
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- 0.0: Grid is invisible (same colour as pixels)
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> GRID_WIDTH: Sets effective with of grid lines
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- 1.0: Maximum width
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- 0.0: Minimum width
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(Note - this is kind of a hack: changing the width
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also changes the grid intensity, but we have to do
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it like this otherwise the grid is uneven without
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integer scaling enabled...)
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> GRID_BIAS: Dynamically adjusts the grid intensity based on pixel luminosity
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- 0.0: Grid intensity is uniform
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- 1.0: Grid intensity scales linearly with pixel luminosity
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> i.e. the darker the pixel, the less the grid effect
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is apparent - black pixels exhibit no grid effect at all
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> DARKEN_GRID: Darkens grid (duh...)
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- 0.0: Grid is white
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- 1.0: Grid is black
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> DARKEN_COLOUR: Simply darkens pixel colours (effectively lowers gamma level of pixels)
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- 0.0: Colours are normal
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- 2.0: Colours are too dark...
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your option)
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any later version.
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*/
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// Background texture size
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// > 2048 x 2048 textures are suitable for screen resolutions up to
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// 1200p (or 1440p if running 'square' aspect ratio systems)
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#define BG_TEXTURE_SIZE 2048.0
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// > 4096 x 4096 textures are suitable for screen resolutions up to 4k
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//#define BG_TEXTURE_SIZE 4096.0
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#pragma parameter GRID_INTENSITY "Grid Intensity" 0.9 0.0 1.0 0.01
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#pragma parameter GRID_WIDTH "Grid Width" 0.9 0.0 1.0 0.01
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#pragma parameter GRID_BIAS "Grid Bias" 0.5 0.0 1.0 0.01
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#pragma parameter DARKEN_GRID "Darken Grid" 0.0 0.0 1.0 0.01
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#pragma parameter DARKEN_COLOUR "Darken Colours" 0.0 0.0 2.0 0.01
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layout(push_constant) uniform Push
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{
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float GRID_INTENSITY;
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float GRID_WIDTH;
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float GRID_BIAS;
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float DARKEN_GRID;
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float DARKEN_COLOUR;
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vec4 OutputSize;
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vec4 OriginalSize;
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vec4 SourceSize;
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} registers;
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layout(std140, set = 0, binding = 0) uniform UBO
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{
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mat4 MVP;
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} global;
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#pragma stage vertex
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layout(location = 0) in vec4 Position;
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layout(location = 1) in vec2 TexCoord;
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layout(location = 0) out vec2 vTexCoord;
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/*
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VERTEX_SHADER
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*/
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void main()
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{
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gl_Position = global.MVP * Position;
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vTexCoord = TexCoord;
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}
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#pragma stage fragment
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layout(location = 0) in vec2 vTexCoord;
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layout(location = 0) out vec4 FragColor;
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layout(set = 0, binding = 2) uniform sampler2D Source;
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layout(set = 0, binding = 3) uniform sampler2D BACKGROUND;
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// ### Magic Numbers...
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// Grid parameters
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#define PI 3.141592654
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#define WIDTH_FACTOR_MAX 31.0
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// RGB -> Luminosity conversion
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// > Photometric/digital ITU BT.709
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#define LUMA_R 0.2126
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#define LUMA_G 0.7152
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#define LUMA_B 0.0722
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// > Digital ITU BT.601
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//#define LUMA_R 0.299
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//#define LUMA_G 0.587
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//#define LUMA_B 0.114
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// Background texture size
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const float INV_BG_TEXTURE_SIZE = 1.0 / BG_TEXTURE_SIZE;
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// Colour correction
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#define TARGET_GAMMA 2.2
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const float INV_DISPLAY_GAMMA = 1.0 / 2.2;
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#define CC_R 0.86
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#define CC_G 0.66
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#define CC_B 0.81
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#define CC_RG 0.11
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#define CC_RB 0.1325
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#define CC_GR 0.19
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#define CC_GB 0.0575
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#define CC_BR -0.05
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#define CC_BG 0.23
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/*
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FRAGMENT SHADER
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*/
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void main()
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{
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// Get current texture coordinate
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vec2 imgPixelCoord = vTexCoord.xy * registers.SourceSize.xy;
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vec2 imgCenterCoord = floor(imgPixelCoord.xy) + vec2(0.5, 0.5);
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// Get colour of current pixel
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vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
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// Darken colours (if required...) and apply colour correction
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colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA + 0.5 + registers.DARKEN_COLOUR));
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colour.rgb = mat3(CC_R, CC_RG, CC_RB,
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CC_GR, CC_G, CC_GB,
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CC_BR, CC_BG, CC_B) * colour.rgb;
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colour.rgb = clamp(pow(colour.rgb, vec3(INV_DISPLAY_GAMMA)), 0.0, 1.0);
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// Generate grid pattern...
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// > Note the 0.25 pixel offset -> required to ensure that
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// grid lines occur *between* pixels
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vec2 angle = 2.0 * PI * (imgPixelCoord - 0.25);
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float wfactor = 1.0 + (WIDTH_FACTOR_MAX - (registers.GRID_WIDTH * WIDTH_FACTOR_MAX));
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float yfactor = (wfactor + sin(angle.y)) / (wfactor + 1.0);
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float xfactor = (wfactor + sin(angle.x)) / (wfactor + 1.0);
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float lineWeight = 1.0 - (yfactor * xfactor);
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// > Apply grid adjustments (phase 1)
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// - GRID_INTENSITY:
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// 1.0: Grid lines are white
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// 0.0: Grid lines are invisible
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lineWeight = lineWeight * registers.GRID_INTENSITY;
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// > Apply grid adjustments (phase 2)
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// - GRID_BIAS:
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// 0.0: Use 'unbiased' lineWeight value calculated above
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// 1.0: Scale lineWeight by current pixel luminosity
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// > i.e. the darker the pixel, the lower the intensity of the grid
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float luma = (LUMA_R * colour.r) + (LUMA_G * colour.g) + (LUMA_B * colour.b);
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lineWeight = lineWeight * (luma + ((1.0 - luma) * (1.0 - registers.GRID_BIAS)));
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// Apply grid pattern
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// (lineWeight == 1 -> set colour to value specified by DARKEN_GRID)
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colour.rgb = mix(colour.rgb, vec3(1.0 - registers.DARKEN_GRID), lineWeight);
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// Get background sample point
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// > NB: external texture coordinates are referenced in a completely different fashion
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// here than they are in GLSL shaders...
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vec2 bgPixelCoord = floor(vTexCoord.xy * registers.OutputSize.xy) + vec2(0.5, 0.5);
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// Sample background texture and 'colourise' according to current pixel colour
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// (NB: the 'colourisation' here is lame, but the proper method is slow...)
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vec3 bgTexture = texture(BACKGROUND, bgPixelCoord.xy * INV_BG_TEXTURE_SIZE).rgb * colour.rgb;
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// Blend current pixel with background according to luminosity
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// (lighter colour == more transparent, more visible background)
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// Note: Have to calculate luminosity a second time... tiresome, but
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// it's not a particulary expensive operation...
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luma = (LUMA_R * colour.r) + (LUMA_G * colour.g) + (LUMA_B * colour.b);
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colour.rgb = mix(colour.rgb, bgTexture.rgb, luma);
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FragColor = vec4(colour.rgb, 1.0);
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}
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@ -0,0 +1,200 @@
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#version 450
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/*
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simpletex_lcd_720p+gbc-color - a simple, textured LCD shader intended for non-backlit systems.
|
||||
Designed for use at 720p, without integer scaling. Includes GBC colour correction.
|
||||
|
||||
- Makes use of grid effect from lcd3x
|
||||
[original lcd3x code written by Gigaherz and released into the public domain]
|
||||
|
||||
- Colour correction code taken from 'gbc-color', written by hunterk and realeased
|
||||
into the public domain, with further tweaks by Pokefan531
|
||||
|
||||
Other code by jdgleaver
|
||||
|
||||
Usage notes:
|
||||
|
||||
- Background texture size is hard-coded (I can't find a way to get this
|
||||
automatically...). User must ensure that 'BG_TEXTURE_SIZE' define is
|
||||
set appropriately.
|
||||
|
||||
- Adjustable parameters:
|
||||
|
||||
> GRID_INTENSITY: Sets overall visibility of grid effect
|
||||
- 1.0: Grid is shown
|
||||
- 0.0: Grid is invisible (same colour as pixels)
|
||||
> GRID_WIDTH: Sets effective with of grid lines
|
||||
- 1.0: Maximum width
|
||||
- 0.0: Minimum width
|
||||
(Note - this is kind of a hack: changing the width
|
||||
also changes the grid intensity, but we have to do
|
||||
it like this otherwise the grid is uneven without
|
||||
integer scaling enabled...)
|
||||
> GRID_BIAS: Dynamically adjusts the grid intensity based on pixel luminosity
|
||||
- 0.0: Grid intensity is uniform
|
||||
- 1.0: Grid intensity scales linearly with pixel luminosity
|
||||
> i.e. the darker the pixel, the less the grid effect
|
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is apparent - black pixels exhibit no grid effect at all
|
||||
> DARKEN_GRID: Darkens grid (duh...)
|
||||
- 0.0: Grid is white
|
||||
- 1.0: Grid is black
|
||||
> DARKEN_COLOUR: Simply darkens pixel colours (effectively lowers gamma level of pixels)
|
||||
- 0.0: Colours are normal
|
||||
- 2.0: Colours are too dark...
|
||||
|
||||
This program is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by the Free
|
||||
Software Foundation; either version 2 of the License, or (at your option)
|
||||
any later version.
|
||||
*/
|
||||
|
||||
// Background texture size
|
||||
// > 2048 x 2048 textures are suitable for screen resolutions up to
|
||||
// 1200p (or 1440p if running 'square' aspect ratio systems)
|
||||
#define BG_TEXTURE_SIZE 2048.0
|
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// > 4096 x 4096 textures are suitable for screen resolutions up to 4k
|
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//#define BG_TEXTURE_SIZE 4096.0
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#pragma parameter GRID_INTENSITY "Grid Intensity" 0.9 0.0 1.0 0.01
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#pragma parameter GRID_WIDTH "Grid Width" 0.9 0.0 1.0 0.01
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#pragma parameter GRID_BIAS "Grid Bias" 0.5 0.0 1.0 0.01
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#pragma parameter DARKEN_GRID "Darken Grid" 0.0 0.0 1.0 0.01
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#pragma parameter DARKEN_COLOUR "Darken Colours" 0.0 0.0 2.0 0.01
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layout(push_constant) uniform Push
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{
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float GRID_INTENSITY;
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float GRID_WIDTH;
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float GRID_BIAS;
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float DARKEN_GRID;
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float DARKEN_COLOUR;
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vec4 OutputSize;
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vec4 OriginalSize;
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vec4 SourceSize;
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} registers;
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layout(std140, set = 0, binding = 0) uniform UBO
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{
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mat4 MVP;
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} global;
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||||
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#pragma stage vertex
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layout(location = 0) in vec4 Position;
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layout(location = 1) in vec2 TexCoord;
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layout(location = 0) out vec2 vTexCoord;
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|
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/*
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VERTEX_SHADER
|
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*/
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void main()
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{
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gl_Position = global.MVP * Position;
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vTexCoord = TexCoord;
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}
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#pragma stage fragment
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||||
|
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layout(location = 0) in vec2 vTexCoord;
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layout(location = 0) out vec4 FragColor;
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layout(set = 0, binding = 2) uniform sampler2D Source;
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layout(set = 0, binding = 3) uniform sampler2D BACKGROUND;
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// ### Magic Numbers...
|
||||
|
||||
// Grid parameters
|
||||
#define PI 3.141592654
|
||||
#define WIDTH_FACTOR_MAX 31.0
|
||||
|
||||
// RGB -> Luminosity conversion
|
||||
// > Photometric/digital ITU BT.709
|
||||
#define LUMA_R 0.2126
|
||||
#define LUMA_G 0.7152
|
||||
#define LUMA_B 0.0722
|
||||
// > Digital ITU BT.601
|
||||
//#define LUMA_R 0.299
|
||||
//#define LUMA_G 0.587
|
||||
//#define LUMA_B 0.114
|
||||
|
||||
// Background texture size
|
||||
const float INV_BG_TEXTURE_SIZE = 1.0 / BG_TEXTURE_SIZE;
|
||||
|
||||
// Colour correction
|
||||
#define TARGET_GAMMA 2.2
|
||||
const float INV_DISPLAY_GAMMA = 1.0 / 2.2;
|
||||
#define CC_R 0.87
|
||||
#define CC_G 0.66
|
||||
#define CC_B 0.79
|
||||
#define CC_RG 0.115
|
||||
#define CC_RB 0.14
|
||||
#define CC_GR 0.18
|
||||
#define CC_GB 0.07
|
||||
#define CC_BR -0.05
|
||||
#define CC_BG 0.225
|
||||
|
||||
/*
|
||||
FRAGMENT SHADER
|
||||
*/
|
||||
void main()
|
||||
{
|
||||
// Get current texture coordinate
|
||||
vec2 imgPixelCoord = vTexCoord.xy * registers.SourceSize.xy;
|
||||
vec2 imgCenterCoord = floor(imgPixelCoord.xy) + vec2(0.5, 0.5);
|
||||
|
||||
// Get colour of current pixel
|
||||
vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
|
||||
|
||||
// Darken colours (if required...) and apply colour correction
|
||||
colour.rgb = pow(colour.rgb, vec3(TARGET_GAMMA - 0.5 + registers.DARKEN_COLOUR));
|
||||
colour.rgb = mat3(CC_R, CC_RG, CC_RB,
|
||||
CC_GR, CC_G, CC_GB,
|
||||
CC_BR, CC_BG, CC_B) * colour.rgb;
|
||||
colour.rgb = clamp(pow(colour.rgb, vec3(INV_DISPLAY_GAMMA)), 0.0, 1.0);
|
||||
|
||||
// Generate grid pattern...
|
||||
// > Note the 0.25 pixel offset -> required to ensure that
|
||||
// grid lines occur *between* pixels
|
||||
vec2 angle = 2.0 * PI * (imgPixelCoord - 0.25);
|
||||
|
||||
float wfactor = 1.0 + (WIDTH_FACTOR_MAX - (registers.GRID_WIDTH * WIDTH_FACTOR_MAX));
|
||||
float yfactor = (wfactor + sin(angle.y)) / (wfactor + 1.0);
|
||||
float xfactor = (wfactor + sin(angle.x)) / (wfactor + 1.0);
|
||||
|
||||
float lineWeight = 1.0 - (yfactor * xfactor);
|
||||
|
||||
// > Apply grid adjustments (phase 1)
|
||||
// - GRID_INTENSITY:
|
||||
// 1.0: Grid lines are white
|
||||
// 0.0: Grid lines are invisible
|
||||
lineWeight = lineWeight * registers.GRID_INTENSITY;
|
||||
|
||||
// > Apply grid adjustments (phase 2)
|
||||
// - GRID_BIAS:
|
||||
// 0.0: Use 'unbiased' lineWeight value calculated above
|
||||
// 1.0: Scale lineWeight by current pixel luminosity
|
||||
// > i.e. the darker the pixel, the lower the intensity of the grid
|
||||
float luma = (LUMA_R * colour.r) + (LUMA_G * colour.g) + (LUMA_B * colour.b);
|
||||
lineWeight = lineWeight * (luma + ((1.0 - luma) * (1.0 - registers.GRID_BIAS)));
|
||||
|
||||
// Apply grid pattern
|
||||
// (lineWeight == 1 -> set colour to value specified by DARKEN_GRID)
|
||||
colour.rgb = mix(colour.rgb, vec3(1.0 - registers.DARKEN_GRID), lineWeight);
|
||||
|
||||
// Get background sample point
|
||||
// > NB: external texture coordinates are referenced in a completely different fashion
|
||||
// here than they are in GLSL shaders...
|
||||
vec2 bgPixelCoord = floor(vTexCoord.xy * registers.OutputSize.xy) + vec2(0.5, 0.5);
|
||||
|
||||
// Sample background texture and 'colourise' according to current pixel colour
|
||||
// (NB: the 'colourisation' here is lame, but the proper method is slow...)
|
||||
vec3 bgTexture = texture(BACKGROUND, bgPixelCoord.xy * INV_BG_TEXTURE_SIZE).rgb * colour.rgb;
|
||||
|
||||
// Blend current pixel with background according to luminosity
|
||||
// (lighter colour == more transparent, more visible background)
|
||||
// Note: Have to calculate luminosity a second time... tiresome, but
|
||||
// it's not a particulary expensive operation...
|
||||
luma = (LUMA_R * colour.r) + (LUMA_G * colour.g) + (LUMA_B * colour.b);
|
||||
colour.rgb = mix(colour.rgb, bgTexture.rgb, luma);
|
||||
|
||||
FragColor = vec4(colour.rgb, 1.0);
|
||||
}
|
180
handheld/shaders/simpletex_lcd/simpletex_lcd_720p.slang
Normal file
180
handheld/shaders/simpletex_lcd/simpletex_lcd_720p.slang
Normal file
|
@ -0,0 +1,180 @@
|
|||
#version 450
|
||||
|
||||
/*
|
||||
simpletex_lcd_720p - a simple, textured LCD shader intended for non-backlit systems.
|
||||
Designed for use at 720p, without integer scaling.
|
||||
|
||||
- Makes use of grid effect from lcd3x
|
||||
[original lcd3x code written by Gigaherz and released into the public domain]
|
||||
|
||||
Other code by jdgleaver
|
||||
|
||||
Usage notes:
|
||||
|
||||
- Background texture size is hard-coded (I can't find a way to get this
|
||||
automatically...). User must ensure that 'BG_TEXTURE_SIZE' define is
|
||||
set appropriately.
|
||||
|
||||
- Adjustable parameters:
|
||||
|
||||
> GRID_INTENSITY: Sets overall visibility of grid effect
|
||||
- 1.0: Grid is shown
|
||||
- 0.0: Grid is invisible (same colour as pixels)
|
||||
> GRID_WIDTH: Sets effective with of grid lines
|
||||
- 1.0: Maximum width
|
||||
- 0.0: Minimum width
|
||||
(Note - this is kind of a hack: changing the width
|
||||
also changes the grid intensity, but we have to do
|
||||
it like this otherwise the grid is uneven without
|
||||
integer scaling enabled...)
|
||||
> GRID_BIAS: Dynamically adjusts the grid intensity based on pixel luminosity
|
||||
- 0.0: Grid intensity is uniform
|
||||
- 1.0: Grid intensity scales linearly with pixel luminosity
|
||||
> i.e. the darker the pixel, the less the grid effect
|
||||
is apparent - black pixels exhibit no grid effect at all
|
||||
> DARKEN_GRID: Darkens grid (duh...)
|
||||
- 0.0: Grid is white
|
||||
- 1.0: Grid is black
|
||||
> DARKEN_COLOUR: Simply darkens pixel colours (effectively lowers gamma level of pixels)
|
||||
- 0.0: Colours are normal
|
||||
- 2.0: Colours are too dark...
|
||||
|
||||
This program is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by the Free
|
||||
Software Foundation; either version 2 of the License, or (at your option)
|
||||
any later version.
|
||||
*/
|
||||
|
||||
// Background texture size
|
||||
// > 2048 x 2048 textures are suitable for screen resolutions up to
|
||||
// 1200p (or 1440p if running 'square' aspect ratio systems)
|
||||
#define BG_TEXTURE_SIZE 2048.0
|
||||
// > 4096 x 4096 textures are suitable for screen resolutions up to 4k
|
||||
//#define BG_TEXTURE_SIZE 4096.0
|
||||
|
||||
#pragma parameter GRID_INTENSITY "Grid Intensity" 0.9 0.0 1.0 0.01
|
||||
#pragma parameter GRID_WIDTH "Grid Width" 0.9 0.0 1.0 0.01
|
||||
#pragma parameter GRID_BIAS "Grid Bias" 0.5 0.0 1.0 0.01
|
||||
#pragma parameter DARKEN_GRID "Darken Grid" 0.0 0.0 1.0 0.01
|
||||
#pragma parameter DARKEN_COLOUR "Darken Colours" 0.0 0.0 2.0 0.01
|
||||
|
||||
layout(push_constant) uniform Push
|
||||
{
|
||||
float GRID_INTENSITY;
|
||||
float GRID_WIDTH;
|
||||
float GRID_BIAS;
|
||||
float DARKEN_GRID;
|
||||
float DARKEN_COLOUR;
|
||||
vec4 OutputSize;
|
||||
vec4 OriginalSize;
|
||||
vec4 SourceSize;
|
||||
} registers;
|
||||
|
||||
layout(std140, set = 0, binding = 0) uniform UBO
|
||||
{
|
||||
mat4 MVP;
|
||||
} global;
|
||||
|
||||
#pragma stage vertex
|
||||
|
||||
layout(location = 0) in vec4 Position;
|
||||
layout(location = 1) in vec2 TexCoord;
|
||||
layout(location = 0) out vec2 vTexCoord;
|
||||
|
||||
/*
|
||||
VERTEX_SHADER
|
||||
*/
|
||||
void main()
|
||||
{
|
||||
gl_Position = global.MVP * Position;
|
||||
vTexCoord = TexCoord;
|
||||
}
|
||||
|
||||
#pragma stage fragment
|
||||
|
||||
layout(location = 0) in vec2 vTexCoord;
|
||||
layout(location = 0) out vec4 FragColor;
|
||||
layout(set = 0, binding = 2) uniform sampler2D Source;
|
||||
layout(set = 0, binding = 3) uniform sampler2D BACKGROUND;
|
||||
|
||||
// ### Magic Numbers...
|
||||
|
||||
// Grid parameters
|
||||
#define PI 3.141592654
|
||||
#define WIDTH_FACTOR_MAX 31.0
|
||||
|
||||
// RGB -> Luminosity conversion
|
||||
// > Photometric/digital ITU BT.709
|
||||
#define LUMA_R 0.2126
|
||||
#define LUMA_G 0.7152
|
||||
#define LUMA_B 0.0722
|
||||
// > Digital ITU BT.601
|
||||
//#define LUMA_R 0.299
|
||||
//#define LUMA_G 0.587
|
||||
//#define LUMA_B 0.114
|
||||
|
||||
// Background texture size
|
||||
const float INV_BG_TEXTURE_SIZE = 1.0 / BG_TEXTURE_SIZE;
|
||||
|
||||
/*
|
||||
FRAGMENT SHADER
|
||||
*/
|
||||
void main()
|
||||
{
|
||||
// Get current texture coordinate
|
||||
vec2 imgPixelCoord = vTexCoord.xy * registers.SourceSize.xy;
|
||||
vec2 imgCenterCoord = floor(imgPixelCoord.xy) + vec2(0.5, 0.5);
|
||||
|
||||
// Get colour of current pixel
|
||||
vec3 colour = texture(Source, registers.SourceSize.zw * imgCenterCoord.xy).rgb;
|
||||
|
||||
// Darken colours (if required...)
|
||||
colour.rgb = pow(colour.rgb, vec3(1.0 + registers.DARKEN_COLOUR));
|
||||
|
||||
// Generate grid pattern...
|
||||
// > Note the 0.25 pixel offset -> required to ensure that
|
||||
// grid lines occur *between* pixels
|
||||
vec2 angle = 2.0 * PI * (imgPixelCoord - 0.25);
|
||||
|
||||
float wfactor = 1.0 + (WIDTH_FACTOR_MAX - (registers.GRID_WIDTH * WIDTH_FACTOR_MAX));
|
||||
float yfactor = (wfactor + sin(angle.y)) / (wfactor + 1.0);
|
||||
float xfactor = (wfactor + sin(angle.x)) / (wfactor + 1.0);
|
||||
|
||||
float lineWeight = 1.0 - (yfactor * xfactor);
|
||||
|
||||
// > Apply grid adjustments (phase 1)
|
||||
// - GRID_INTENSITY:
|
||||
// 1.0: Grid lines are white
|
||||
// 0.0: Grid lines are invisible
|
||||
lineWeight = lineWeight * registers.GRID_INTENSITY;
|
||||
|
||||
// > Apply grid adjustments (phase 2)
|
||||
// - GRID_BIAS:
|
||||
// 0.0: Use 'unbiased' lineWeight value calculated above
|
||||
// 1.0: Scale lineWeight by current pixel luminosity
|
||||
// > i.e. the darker the pixel, the lower the intensity of the grid
|
||||
float luma = (LUMA_R * colour.r) + (LUMA_G * colour.g) + (LUMA_B * colour.b);
|
||||
lineWeight = lineWeight * (luma + ((1.0 - luma) * (1.0 - registers.GRID_BIAS)));
|
||||
|
||||
// Apply grid pattern
|
||||
// (lineWeight == 1 -> set colour to value specified by DARKEN_GRID)
|
||||
colour.rgb = mix(colour.rgb, vec3(1.0 - registers.DARKEN_GRID), lineWeight);
|
||||
|
||||
// Get background sample point
|
||||
// > NB: external texture coordinates are referenced in a completely different fashion
|
||||
// here than they are in GLSL shaders...
|
||||
vec2 bgPixelCoord = floor(vTexCoord.xy * registers.OutputSize.xy) + vec2(0.5, 0.5);
|
||||
|
||||
// Sample background texture and 'colourise' according to current pixel colour
|
||||
// (NB: the 'colourisation' here is lame, but the proper method is slow...)
|
||||
vec3 bgTexture = texture(BACKGROUND, bgPixelCoord.xy * INV_BG_TEXTURE_SIZE).rgb * colour.rgb;
|
||||
|
||||
// Blend current pixel with background according to luminosity
|
||||
// (lighter colour == more transparent, more visible background)
|
||||
// Note: Have to calculate luminosity a second time... tiresome, but
|
||||
// it's not a particulary expensive operation...
|
||||
luma = (LUMA_R * colour.r) + (LUMA_G * colour.g) + (LUMA_B * colour.b);
|
||||
colour.rgb = mix(colour.rgb, bgTexture.rgb, luma);
|
||||
|
||||
FragColor = vec4(colour.rgb, 1.0);
|
||||
}
|
|
@ -15,7 +15,7 @@ BACKGROUND_linear = false
|
|||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.65"
|
||||
GRID_WIDTH = "0.6"
|
||||
GRID_WIDTH = "0.65"
|
||||
GRID_BIAS = "0.6"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.35"
|
||||
DARKEN_COLOUR = "0.05"
|
||||
|
|
|
@ -15,7 +15,7 @@ BACKGROUND_linear = false
|
|||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.65"
|
||||
GRID_WIDTH = "0.6"
|
||||
GRID_WIDTH = "0.65"
|
||||
GRID_BIAS = "0.6"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.35"
|
||||
DARKEN_COLOUR = "0.05"
|
||||
|
|
|
@ -14,8 +14,8 @@ BACKGROUND = "shaders/simpletex_lcd/png/4k/textured_paper.png"
|
|||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.8"
|
||||
GRID_INTENSITY = "0.65"
|
||||
GRID_WIDTH = "0.65"
|
||||
GRID_BIAS = "0.5"
|
||||
GRID_BIAS = "0.6"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.05"
|
||||
|
|
|
@ -14,8 +14,8 @@ BACKGROUND = "shaders/simpletex_lcd/png/2k/textured_paper.png"
|
|||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.8"
|
||||
GRID_INTENSITY = "0.65"
|
||||
GRID_WIDTH = "0.65"
|
||||
GRID_BIAS = "0.5"
|
||||
GRID_BIAS = "0.6"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.05"
|
||||
|
|
|
@ -14,8 +14,8 @@ BACKGROUND = "shaders/simpletex_lcd/png/4k/textured_paper.png"
|
|||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.8"
|
||||
GRID_INTENSITY = "0.65"
|
||||
GRID_WIDTH = "0.65"
|
||||
GRID_BIAS = "0.5"
|
||||
GRID_BIAS = "0.6"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.05"
|
||||
|
|
|
@ -14,8 +14,8 @@ BACKGROUND = "shaders/simpletex_lcd/png/2k/textured_paper.png"
|
|||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.8"
|
||||
GRID_INTENSITY = "0.65"
|
||||
GRID_WIDTH = "0.65"
|
||||
GRID_BIAS = "0.5"
|
||||
GRID_BIAS = "0.6"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.05"
|
||||
|
|
21
handheld/simpletex_lcd_720p+gba-color.slangp
Normal file
21
handheld/simpletex_lcd_720p+gba-color.slangp
Normal file
|
@ -0,0 +1,21 @@
|
|||
shaders = "1"
|
||||
|
||||
shader0 = "shaders/simpletex_lcd/simpletex_lcd_720p+gba-color.slang"
|
||||
|
||||
filter_linear0 = "true"
|
||||
wrap_mode0 = "clamp_to_border"
|
||||
mipmap_input0 = "false"
|
||||
alias0 = ""
|
||||
float_framebuffer0 = "false"
|
||||
srgb_framebuffer0 = "false"
|
||||
|
||||
textures = "BACKGROUND"
|
||||
BACKGROUND = "shaders/simpletex_lcd/png/2k/textured_paper.png"
|
||||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.72"
|
||||
GRID_WIDTH = "0.94"
|
||||
GRID_BIAS = "0.80"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.10"
|
21
handheld/simpletex_lcd_720p+gbc-color.slangp
Normal file
21
handheld/simpletex_lcd_720p+gbc-color.slangp
Normal file
|
@ -0,0 +1,21 @@
|
|||
shaders = "1"
|
||||
|
||||
shader0 = "shaders/simpletex_lcd/simpletex_lcd_720p+gbc-color.slang"
|
||||
|
||||
filter_linear0 = "true"
|
||||
wrap_mode0 = "clamp_to_border"
|
||||
mipmap_input0 = "false"
|
||||
alias0 = ""
|
||||
float_framebuffer0 = "false"
|
||||
srgb_framebuffer0 = "false"
|
||||
|
||||
textures = "BACKGROUND"
|
||||
BACKGROUND = "shaders/simpletex_lcd/png/2k/textured_paper.png"
|
||||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.72"
|
||||
GRID_WIDTH = "0.94"
|
||||
GRID_BIAS = "0.80"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.10"
|
21
handheld/simpletex_lcd_720p.slangp
Normal file
21
handheld/simpletex_lcd_720p.slangp
Normal file
|
@ -0,0 +1,21 @@
|
|||
shaders = "1"
|
||||
|
||||
shader0 = "shaders/simpletex_lcd/simpletex_lcd_720p.slang"
|
||||
|
||||
filter_linear0 = "true"
|
||||
wrap_mode0 = "clamp_to_border"
|
||||
mipmap_input0 = "false"
|
||||
alias0 = ""
|
||||
float_framebuffer0 = "false"
|
||||
srgb_framebuffer0 = "false"
|
||||
|
||||
textures = "BACKGROUND"
|
||||
BACKGROUND = "shaders/simpletex_lcd/png/2k/textured_paper.png"
|
||||
BACKGROUND_linear = false
|
||||
|
||||
parameters = "GRID_INTENSITY;GRID_WIDTH;GRID_BIAS;DARKEN_GRID;DARKEN_COLOUR"
|
||||
GRID_INTENSITY = "0.72"
|
||||
GRID_WIDTH = "0.94"
|
||||
GRID_BIAS = "0.80"
|
||||
DARKEN_GRID = "0.0"
|
||||
DARKEN_COLOUR = "0.10"
|
Loading…
Reference in a new issue