slang-shaders/handheld/shaders/gbc_pokemon_modernizer.slang

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#version 450
// GBC Pokemon Modernizer
// by torridgristle
// license: Public Domain
layout(push_constant) uniform Push
{
vec4 SourceSize;
vec4 OriginalSize;
vec4 OutputSize;
uint FrameCount;
} params;
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;
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;
precision lowp float;
const mat3 GBCMatrix = mat3( 0.924, 0.021, 0.013, 0.048, 0.787, 0.249, 0.104, 0.09, 0.733 )
void main()
{
vec3 Picture = texture(Source, vTexCoord).xyz;
Picture *= Picture;
Picture *= GBCMatrix;
Picture = sqrt(Picture);
FragColor = vec4(Picture,1.0);
}