27 lines
757 B
Plaintext
27 lines
757 B
Plaintext
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#version {{version}}
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// pathfinder/resources/shaders/reproject.fs.glsl
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//
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// Copyright © 2019 The Pathfinder Project Developers.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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precision highp float;
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uniform mat4 uOldTransform;
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uniform sampler2D uTexture;
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in vec2 vTexCoord;
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out vec4 oFragColor;
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void main() {
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vec4 normTexCoord = uOldTransform * vec4(vTexCoord, 0.0, 1.0);
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vec2 texCoord = ((normTexCoord.xy / normTexCoord.w) + 1.0) * 0.5;
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oFragColor = texture(uTexture, texCoord);
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}
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