enhance(frontend/image-effector): tweak distort fx
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@ -9,6 +9,10 @@ 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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@ -20,8 +24,8 @@ out vec4 out_color;
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void main() {
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float v = u_direction == 0 ?
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sin(u_phase + in_uv.y * u_frequency) * u_strength :
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sin(u_phase + in_uv.x * u_frequency) * u_strength;
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sin((HALF_PI + (u_phase * PI) - (u_frequency / 2.0)) + in_uv.y * u_frequency) * u_strength :
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sin((HALF_PI + (u_phase * PI) - (u_frequency / 2.0)) + in_uv.x * u_frequency) * u_strength;
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vec4 in_color = u_direction == 0 ?
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texture(in_texture, vec2(in_uv.x + v, in_uv.y)) :
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texture(in_texture, vec2(in_uv.x, in_uv.y + v));
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@ -38,32 +42,32 @@ export const FX_distort = defineImageEffectorFx({
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direction: {
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type: 'number:enum' as const,
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enum: [{ value: 0, label: 'v' }, { value: 1, label: 'h' }],
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default: 0,
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default: 1,
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},
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phase: {
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type: 'number' as const,
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default: 50.0,
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min: 0.0,
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max: 100,
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default: 0.0,
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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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},
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frequency: {
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type: 'number' as const,
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default: 50,
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default: 30,
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min: 0,
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max: 100,
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step: 0.1,
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},
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strength: {
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type: 'number' as const,
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default: 0.1,
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default: 0.05,
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min: 0,
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max: 1,
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step: 0.01,
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},
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},
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main: ({ gl, u, params }) => {
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gl.uniform1f(u.phase, params.phase / 10);
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gl.uniform1f(u.phase, params.phase);
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gl.uniform1f(u.frequency, params.frequency);
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gl.uniform1f(u.strength, params.strength);
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gl.uniform1i(u.direction, params.direction);
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