| width | Width of the RenderTexture in pixels. |
| height | Height of the RenderTexture in pixels. |
| colorFormat | The color format for the RenderTexture. |
| depthStencilFormat | The depth stencil format for the RenderTexture. |
| depthBufferBits | The number of bits to use for the depth buffer. |
| mipCount | Amount of mips to allocate for the RenderTexture. |
| readWrite | How color space conversions are applied on texture read/write. |
Create a RenderTextureDescriptor with default values, or a certain width, height, and format.