eaglercraft-1.8/sources/resources/assets/eagler/glsl/texture_blit.vsh

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/*
* Copyright (c) 2023 LAX1DUDE. All Rights Reserved.
*
* WITH THE EXCEPTION OF PATCH FILES, MINIFIED JAVASCRIPT, AND ALL FILES
* NORMALLY FOUND IN AN UNMODIFIED MINECRAFT RESOURCE PACK, YOU ARE NOT ALLOWED
* TO SHARE, DISTRIBUTE, OR REPURPOSE ANY FILE USED BY OR PRODUCED BY THE
* SOFTWARE IN THIS REPOSITORY WITHOUT PRIOR PERMISSION FROM THE PROJECT AUTHOR.
*
* NOT FOR COMMERCIAL OR MALICIOUS USE
*
* (please read the 'LICENSE' file this repo's root directory for more info)
*
*/
precision lowp int;
precision lowp float;
precision lowp sampler2D;
layout(location = 0) in vec2 a_position2f;
out vec2 v_texCoords2f;
uniform vec4 u_srcCoords4f;
uniform vec4 u_dstCoords4f;
void main() {
vec2 uv = a_position2f * 0.5 + 0.5;
v_texCoords2f = u_srcCoords4f.xy + u_srcCoords4f.zw * uv;
gl_Position = vec4(u_dstCoords4f.xy + u_dstCoords4f.zw * uv, 0.0, 1.0);
}