1.4 KiB
1.4 KiB
Viewport
命名空间: XCEngine::Math
类型: struct
头文件: XCEngine/Math/Viewport.h
描述: 视口，用于渲染目标区域和坐标映射
概述
Viewport 结构体表示一个渲染视口，除了位置和尺寸外，还包含深度范围 (minDepth, maxDepth)。主要用于屏幕到归一化设备坐标（NDC）的映射，以及渲染目标区域的定义。
公共方法
| 方法 | 描述 |
|---|---|
GetAspectRatio |
获取视口宽高比 |
GetRect |
转换为 Rect |
使用示例
#include "XCEngine/Math/Rect.h"
#include <iostream>
using namespace XCEngine::Math;
int main() {
Viewport viewport(0.0f, 0.0f, 1920.0f, 1080.0f, 0.0f, 1.0f);
std::cout << "Position: (" << viewport.x << ", " << viewport.y << ")\n";
std::cout << "Size: " << viewport.width << " x " << viewport.height << "\n";
std::cout << "Depth: " << viewport.minDepth << " to " << viewport.maxDepth << "\n";
std::cout << "Aspect Ratio: " << viewport.GetAspectRatio() << "\n";
Rect rect = viewport.GetRect();
std::cout << "As Rect: (" << rect.x << ", " << rect.y << ", " << rect.width << ", " << rect.height << ")\n";
return 0;
}