depth buffer cleared but color buffer exist

[ianyyin]

Hi,

 

We are reading depth buffer and color buffer for every single frame in our application, the color buffer is ok, but the depth buffer got cleared, it showed FF, which is most far away...

is it manually cleared in the engine code? If so, could you tell me how to enable the depth buffer to avoid cleared after rendering?

 

Thanks,

Ian

[silent]

Hi Ian,

 

There are at least two depth buffers available (native and internal) and it is not completely clear how you are reading and from which exactly buffer.

 

Could you please provide us a small test scene with that behavior so we can debug it?

 

Thanks!

[ianyyin]

The way we are doing it, is directly read the DX11 depth buffer texture in Swap(), and after we copy it to our own buffer, we found it is FF.

[silent]

Hi Ian,

 

Native depth in d24/d32 format or our intrernal linear depth (RGBA8)? Can you please provide a small sample that can be used for debugging?

Thanks!

[ianyyin]

native depth buffer, accessed from dx11 api. Unfortunately, we cannot provide a small sample.

[silent]

Hi Ian,

 

Maybe some parts of code you can show us how exactly you are reading this texture? It is really hard to suggest anything without seeing the actual use case or sample, sorry.

 

Thanks!