| src | 源纹理。 |
| dst | 目标纹理。 |
| srcElement | 源元素（例如，立方体贴图面）。对于 2D 源纹理，请将此值设置为 0。 |
| dstElement | 目标元素（例如，立方体贴图面或纹理数组元素）。 |
转换源纹理并将其复制到具有不同格式或尺寸的目标纹理。
此函数提供了在不同格式和尺寸的纹理之间进行转换的有效方式。目标纹理格式必须处于未压缩状态，并且与当前设备上支持的 RenderTextureFormat 相对应。可将 2D 和立方体贴图纹理用作源，将 2D、立方体贴图、2D 数组和立方体贴图阵列纹理用作目标。
请注意，由于 API 限制，DX9 或 Mac+OpenGL 中不支持此函数。
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