📅  最后修改于: 2022-03-11 15:00:15.844000             🧑  作者: Mango
#version 330
in vec3 vertPos;
out vec4 fragColor;
void main() {
vec3 posAbs = abs(vertPos);
vec3 color = step(posAbs.yzx, posAbs) * step(posAbs.zxy, posAbs);
color += (1.0 - step(color.zxy * vertPos.zxy, vec3(0.0)));
fragColor = vec4(color, 1.0);
}