mirror of
https://github.com/misskey-dev/misskey.git
synced 2026-05-16 16:45:30 +02:00
28f5b2f173
* fix(frontend): ぼかし・塗りつぶし・モザイクの画像エフェクトを修正 * Update Changelog * fix changelog [ci skip] * fix changelog [ci skip] * tweak --------- Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>
75 lines
2.3 KiB
GLSL
75 lines
2.3 KiB
GLSL
#version 300 es
|
|
precision mediump float;
|
|
|
|
/*
|
|
* SPDX-FileCopyrightText: syuilo and misskey-project
|
|
* SPDX-License-Identifier: AGPL-3.0-only
|
|
*/
|
|
|
|
const float PI = 3.141592653589793;
|
|
const float TWO_PI = 6.283185307179586;
|
|
const float HALF_PI = 1.5707963267948966;
|
|
|
|
in vec2 in_uv;
|
|
uniform sampler2D in_texture;
|
|
uniform vec2 in_resolution;
|
|
uniform vec2 u_offset;
|
|
uniform vec2 u_scale;
|
|
uniform bool u_ellipse;
|
|
uniform float u_angle;
|
|
uniform int u_samples;
|
|
uniform float u_strength;
|
|
out vec4 out_color;
|
|
|
|
|
|
void main() {
|
|
if (u_strength <= 0.0) {
|
|
out_color = texture(in_texture, in_uv);
|
|
return;
|
|
}
|
|
|
|
float angle = -(u_angle * PI);
|
|
float aspect = in_resolution.x / max(in_resolution.y, 1.0);
|
|
vec2 centeredUv = in_uv - vec2(0.5, 0.5) - u_offset;
|
|
vec2 scaledUv = vec2(centeredUv.x * aspect, centeredUv.y);
|
|
vec2 rotatedScaledUv = vec2(
|
|
scaledUv.x * cos(angle) - scaledUv.y * sin(angle),
|
|
scaledUv.x * sin(angle) + scaledUv.y * cos(angle)
|
|
);
|
|
vec2 rotatedUV = vec2(rotatedScaledUv.x / aspect, rotatedScaledUv.y) + u_offset;
|
|
|
|
bool isInside = false;
|
|
if (u_ellipse) {
|
|
vec2 norm = (rotatedUV - u_offset) / u_scale;
|
|
isInside = dot(norm, norm) <= 1.0;
|
|
} else {
|
|
isInside = rotatedUV.x > u_offset.x - u_scale.x && rotatedUV.x < u_offset.x + u_scale.x && rotatedUV.y > u_offset.y - u_scale.y && rotatedUV.y < u_offset.y + u_scale.y;
|
|
}
|
|
|
|
if (!isInside) {
|
|
out_color = texture(in_texture, in_uv);
|
|
return;
|
|
}
|
|
|
|
float baseResolution = (in_resolution.x + in_resolution.y) * 0.5;
|
|
float dx = (u_strength * baseResolution) / max(in_resolution.x, 1.0);
|
|
float dy = (u_strength * baseResolution) / max(in_resolution.y, 1.0);
|
|
vec2 centerUv = vec2(0.5, 0.5) + u_offset;
|
|
vec2 new_uv = vec2(
|
|
(dx * (floor((in_uv.x - centerUv.x - (dx / 2.0)) / dx) + 0.5)),
|
|
(dy * (floor((in_uv.y - centerUv.y - (dy / 2.0)) / dy) + 0.5))
|
|
) + vec2(centerUv.x + (dx / 2.0), centerUv.y + (dy / 2.0));
|
|
|
|
vec4 result = vec4(0.0);
|
|
float totalSamples = 0.0;
|
|
|
|
vec2 halfStep = vec2(dx, dy) * 0.25;
|
|
result += texture(in_texture, new_uv + vec2(-halfStep.x, -halfStep.y));
|
|
result += texture(in_texture, new_uv + vec2(halfStep.x, -halfStep.y));
|
|
result += texture(in_texture, new_uv + vec2(-halfStep.x, halfStep.y));
|
|
result += texture(in_texture, new_uv + vec2(halfStep.x, halfStep.y));
|
|
totalSamples += 4.0;
|
|
|
|
out_color = totalSamples > 0.0 ? result / totalSamples : texture(in_texture, in_uv);
|
|
}
|