32 lines
933 B
GLSL
32 lines
933 B
GLSL
// pathfinder/shaders/gles2/blit.vs.glsl
|
|
//
|
|
// Copyright (c) 2017 The Pathfinder Project Developers.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
/// A trivial shader that does nothing more than blit a texture.
|
|
|
|
precision mediump float;
|
|
|
|
/// A 3D transform to apply to the scene.
|
|
uniform mat4 uTransform;
|
|
/// A fixed scaling to be applied to the texture coordinates.
|
|
uniform vec2 uTexScale;
|
|
|
|
/// The 2D vertex position.
|
|
attribute vec2 aPosition;
|
|
/// The texture coordinate.
|
|
attribute vec2 aTexCoord;
|
|
|
|
/// The scaled texture coordinate.
|
|
varying vec2 vTexCoord;
|
|
|
|
void main() {
|
|
gl_Position = uTransform * vec4(aPosition, 0.0, 1.0);
|
|
vTexCoord = aTexCoord * uTexScale;
|
|
}
|