[SOLVED] Depth buffer when using renderImage2D

[joseph.howell]

Hi, I want to render to a texture using Render::get()->renderImage2D() and get the depth buffer from that render.  Is that possible to do, or would I just need to write a shader that outputs the depth?

[silent]

Hi Joseph,

 

I'm afraid the only way currently is to write custom post process shader (from shaders you can get access to the raw GBuffers, including depth buffer) and save depth buffer content to some texture.

[joseph.howell]

Ok, that's what I figured.  Thanks

[Greg.Mildenhall]

Is this still true, or is the 2.6.1 pipeline more flexible?

[Greg.Mildenhall]

Is this still true, or is the 2.6.1 pipeline more flexible?

[silent]

Hi Greg,

Since the 2.5 you can get access to the Gbuffer textures and depth via callbacks via C++ API (not only via shader's code) - that's the main changes.

For displaying depth texture (we also use inverse-Z to increase depth accuracy) you will probably need some additional processing (or shader) to do so.

Thanks!