90 lines
2.2 KiB
TypeScript
90 lines
2.2 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { defineImageEffectorFx } from '../ImageEffector.js';
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import { i18n } from '@/i18n.js';
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const shader = `#version 300 es
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precision mediump float;
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const float PI = 3.141592653589793;
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const float TWO_PI = 6.283185307179586;
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const float HALF_PI = 1.5707963267948966;
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in vec2 in_uv;
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uniform sampler2D in_texture;
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uniform vec2 in_resolution;
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uniform float u_angle;
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uniform float u_scale;
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uniform vec3 u_color;
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uniform float u_opacity;
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out vec4 out_color;
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void main() {
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vec4 in_color = texture(in_texture, in_uv);
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float x_ratio = max(in_resolution.x / in_resolution.y, 1.0);
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float y_ratio = max(in_resolution.y / in_resolution.x, 1.0);
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float angle = -(u_angle * PI);
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vec2 centeredUv = (in_uv - vec2(0.5, 0.5)) * vec2(x_ratio, y_ratio);
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vec2 rotatedUV = vec2(
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centeredUv.x * cos(angle) - centeredUv.y * sin(angle),
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centeredUv.x * sin(angle) + centeredUv.y * cos(angle)
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);
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float fmodResult = mod(floor(u_scale * rotatedUV.x) + floor(u_scale * rotatedUV.y), 2.0);
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float fin = max(sign(fmodResult), 0.0);
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out_color = vec4(
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mix(in_color.r, u_color.r, fin * u_opacity),
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mix(in_color.g, u_color.g, fin * u_opacity),
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mix(in_color.b, u_color.b, fin * u_opacity),
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in_color.a
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);
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}
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`;
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export const FX_checker = defineImageEffectorFx({
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id: 'checker' as const,
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name: i18n.ts._imageEffector._fxs.checker,
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shader,
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uniforms: ['angle', 'scale', 'color', 'opacity'] as const,
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params: {
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angle: {
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type: 'number' as const,
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default: 0,
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min: -1.0,
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max: 1.0,
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step: 0.01,
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toViewValue: v => Math.round(v * 90) + '°',
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},
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scale: {
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type: 'number' as const,
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default: 3.0,
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min: 1.0,
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max: 10.0,
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step: 0.1,
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},
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color: {
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type: 'color' as const,
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default: [1, 1, 1],
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},
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opacity: {
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type: 'number' as const,
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default: 0.5,
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min: 0.0,
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max: 1.0,
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step: 0.01,
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toViewValue: v => Math.round(v * 100) + '%',
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},
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},
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main: ({ gl, u, params }) => {
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gl.uniform1f(u.angle, params.angle / 2);
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gl.uniform1f(u.scale, params.scale * params.scale);
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gl.uniform3f(u.color, params.color[0], params.color[1], params.color[2]);
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gl.uniform1f(u.opacity, params.opacity);
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},
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});
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