mirror of
https://github.com/italicsjenga/slang-shaders.git
synced 2024-11-23 08:11:29 +11:00
259ff81f4b
* Move initial batch of shaders and presets to smoothing subdirectory * Rename smoothing to edge enhancement * Move cubic and windowed into interpolation * Fix some presets * Fix rest of presets * Rename edge-enhancement to edge-smoothing * Move pixel art scalers into separate directory separate from 'interpolation' * Flatten interpolation/cubic into interpolation/
75 lines
2 KiB
Plaintext
75 lines
2 KiB
Plaintext
#version 450
|
|
|
|
/*
|
|
Pixel AA v1.2 by fishku
|
|
Copyright (C) 2023
|
|
Public domain license (CC0)
|
|
|
|
Features:
|
|
- Sharp upscaling with anti-aliasing
|
|
- Subpixel upscaling
|
|
- Sharpness can be controlled
|
|
- Gamma correct blending
|
|
- Integer scales result in pixel-perfect scaling
|
|
- Can use bilinear filtering for max. performance
|
|
|
|
Inspired by:
|
|
https://www.shadertoy.com/view/MlB3D3
|
|
by d7samurai
|
|
and:
|
|
https://www.youtube.com/watch?v=d6tp43wZqps
|
|
by t3ssel8r
|
|
|
|
With sharpness = 1.0, using the same gamma-correct blending, and disabling
|
|
subpixel anti-aliasing, results are identical to the "pixellate" shader.
|
|
|
|
Changelog:
|
|
v1.2: Optimize and simplify algorithm. Enable sharpness < 1.0. Fix subpixel
|
|
sampling bug.
|
|
v1.1: Better subpixel sampling.
|
|
v1.0: Initial release.
|
|
*/
|
|
|
|
layout(push_constant) uniform Push {
|
|
vec4 SourceSize;
|
|
vec4 OutputSize;
|
|
float PIX_AA_SHARP;
|
|
float PIX_AA_GAMMA;
|
|
float PIX_AA_SUBPX;
|
|
float PIX_AA_SUBPX_BGR;
|
|
}
|
|
param;
|
|
|
|
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 tx_coord;
|
|
layout(location = 1) out vec2 tx_per_px;
|
|
layout(location = 2) out vec2 tx_to_uv;
|
|
|
|
void main() {
|
|
gl_Position = global.MVP * Position;
|
|
tx_coord = TexCoord * param.SourceSize.xy;
|
|
tx_per_px = param.SourceSize.xy * param.OutputSize.zw;
|
|
tx_to_uv = param.SourceSize.zw;
|
|
}
|
|
|
|
#pragma stage fragment
|
|
layout(location = 0) in vec2 tx_coord;
|
|
layout(location = 1) in vec2 tx_per_px;
|
|
layout(location = 2) in vec2 tx_to_uv;
|
|
layout(location = 0) out vec4 FragColor;
|
|
layout(set = 0, binding = 2) uniform sampler2D Source;
|
|
|
|
#include "shared.slang"
|
|
|
|
void main() {
|
|
FragColor =
|
|
pixel_aa(Source, tx_per_px, tx_to_uv, tx_coord, param.PIX_AA_SHARP,
|
|
param.PIX_AA_GAMMA > 0.5, param.PIX_AA_SUBPX > 0.5,
|
|
param.PIX_AA_SUBPX_BGR > 0.5);
|
|
}
|