| # Packed depth stencil support in Metal |
| |
| Metal has different runtime behaviors when it comes to packed depth stencil format usage. |
| |
| On macOS, packed depth24stencil8 format is supported (albeit optionally) and if application |
| wants to use both depth and stencil attachments in the same render pass, these attachments must |
| point to the same packed depth stencil texture. In other words, it is not permitted to use separate |
| depth & stencil textures in a same render pass. |
| |
| iOS simulators and mac Catalyst platforms have the same restrictions as macOS. |
| |
| On iOS devices, depth24stencil8 format is not available. The only packed format supported is depth32stencil8 which is a 64 bits format (24 bits unused). However, metal runtime allows separate |
| depth & stencil textures to be attached to one render pass. So technically, one depth32 texture |
| and one stencil8 texture can be used together. |
