ssdfasd
b414bc5326
Fixed broken references: - texture-import-settings: Fix 16 files referencing wrong overview filename - math/rectint: Fix 9 method links (rectint-* → get*, contains, intersects) - rhi/opengl/device: Fix 8 cross-references (opengl-* → */**) - resources/mesh: Fix meshsection and vertexattribute links - rhi/d3d12/sampler: Fix RHISampler reference path - math/vector3: Fix projectonplane → project-on-plane - rhi/opengl/command-list: Remove broken ClearFlag enum ref - rhi/opengl/device: Create 2 new method docs (MakeContextCurrent, GetNativeContext) - rhi/device: Fix device-info types reference All 0 broken references remaining.
24 lines
646 B
Markdown
24 lines
646 B
Markdown
# Math::EPSILON
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```cpp
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constexpr float EPSILON = 1e-6f;
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```
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`EPSILON` 是一个非常小的浮点数常量，值为 0.000001。该常量主要用于浮点数比较，由于浮点数精度问题，直接使用 `==` 比较浮点数可能产生错误结果，此时应使用 `EPSILON` 进行容差比较。例如判断两个浮点数是否相等，可以检查它们的差的绝对值是否小于 `EPSILON`。
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**示例：**
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```cpp
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#include <XCEngine/Core/Math/Math.h>
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float a = 0.1f + 0.2f;
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float b = 0.3f;
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if (fabsf(a - b) < Math::EPSILON) {
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// a 和 b 可以视为相等
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}
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```
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## 相关文档
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- [Math 总览](h.md) - 返回 Math 概览
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