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aec29f869b
First pass at a Next Generation UI demo app. The UI needs work, feedback gratefully accepted. ## Pre-launch Checklist - [x] I read the [Flutter Style Guide] _recently_, and have followed its advice. - [x] I signed the [CLA]. - [x] I read the [Contributors Guide]. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-devrel channel on [Discord]. <!-- Links --> [Flutter Style Guide]: https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo [CLA]: https://cla.developers.google.com/ [Discord]: https://github.com/flutter/flutter/wiki/Chat [Contributors Guide]: https://github.com/flutter/samples/blob/main/CONTRIBUTING.md
17 lines
448 B
GLSL
17 lines
448 B
GLSL
// Copyright 2023 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#define M_PI 3.14159265
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#define M_INVPI 0.31830989
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float hash_1d(float v) {
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float u = 50.0 * sin(v * 3000.0);
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return 2.0 * fract(2.0 * u * u) - 1.0;
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}
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float hash_2d(vec2 pos) {
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vec2 uv = 50.0 * fract(pos * M_INVPI);
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return 2.0 * fract(uv.x * uv.y * (uv.x + uv.y)) - 1.0;
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}
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