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赣州市洪水风险预警系统三维版本
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水文水环境分析-洪水淹没页面--实现判断当前点是否在所绘多边形内部(当点在线上时存在误判)
guoshilong
2023-02-02
c03856d80d71e92499bf0b084c4e862eb4d48a3d
[hsyjv2.git]
/
libs
/
Source
/
Shaders
/
CheckFloatTexturePrecisionFS.glsl
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uniform sampler2D u_floatTexture;
void main()
{
float actual = texture2D(u_floatTexture, vec2(0.5, 0.5)).r;
float expected = 123456.0;
gl_FragColor = vec4(abs(actual - expected), 0.0, 0.0, 1.0);
}