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The first redeclarations of gl_FragCoord must appear before any

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use of gl_FragCoord.
This commit is contained in:
ZhiqianXia 2022-03-02 19:54:33 +08:00
parent 538231d8b4
commit 07f677028c
6 changed files with 311 additions and 4 deletions
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31
Test/gl_FragCoord.frag Normal file
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#version 150 core
#extension GL_ARB_explicit_attrib_location : enable
#ifdef GL_ES
precision mediump float;
#endif
layout (origin_upper_left,pixel_center_integer) in vec4 gl_FragCoord;
float myGlobalVar = gl_FragCoord.x;
layout (origin_upper_left,pixel_center_integer) in vec4 gl_FragCoord;
in vec4 i;
layout (location = 0) out vec4 myColor;
const float eps=0.001;
void main() {
myColor = vec4(0.2);
if (gl_FragCoord.y >= 10) {
myColor.b = 0.8;
}
if (gl_FragCoord.y == trunc(gl_FragCoord.y)) {
myColor.g = 0.8;
}
if (gl_FragCoord.x == trunc(gl_FragCoord.x)) {
myColor.r = 0.8;
}
vec4 diff = gl_FragCoord - i;
if (abs(diff.z)>eps) myColor.b = 0.5;
if (abs(diff.w)>eps) myColor.a = 0.5;
}