Options for the compressed texture formats that are available on the target build platform.
| Unknown | Use an undefined texture compression format. |
| ETC | Use ETC1 texture compression (or ETC2 for textures with alpha). |
| ETC2 | Use ETC2 texture compression. |
| ASTC | Use ASTC texture compression. |
| PVRTC | Use PowerVR texture compression. |
| DXTC | Use S3 texture compression. |
| BPTC | Use BPTC texture compression. |
| DXTC_RGTC | Use DXT + RGTC(BC4, BC5) texture compression. |