funny-animated-gif-from-profile-picture-bot/shaders/vertex.glsl

/*
    Copyright (C) 2021  hiimgoodpack

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/
#version 330 core

layout (location = 0) in vec2 aPosition;

out vec2 vFragCoord;

// Set to 1 or -1 to flip Y
uniform float aTexCoordYScale;

void main() {
	gl_Position = vec4(aPosition, 0, 1);
	vFragCoord = aPosition * vec2(1, aTexCoordYScale);
}