Logarithmic Z-Buffer for large worlds

Jjunky · Jul 8, 2018

Hi,

I'm doing a planetary game (specifically using a quadtree planet) and I need to achieve better far distance rendering (without z fighting problems) while not loosing too much near clip distance. One common solution is to store the depth in logarithmic scale. It's "kind of easy" to do this in godot? There is any place where I can change how depth is encoded and decoded for all shaders? Or this would require little changes everywhere?

I'm in master branch and working with custom modules, so I can change c++ code if needed, no problem for that. I'm also used to glsl so not problem for that either.

Any advice/direction/place to look for, would be appreciated.

Megalomaniak · Jul 8, 2018

This is the sort of thing you would be best starting a 'discussion' for on the issue tracker https://github.com/godotengine/godot/issues/new

Hopefully with some help & direction from the other developers you can develop a patch and submit a pull request there.

Jjunky · Jul 8, 2018

Thank you very much for the advise. I submitted the issue, if anyone is interested: https://github.com/godotengine/godot/issues/20050

Megalomaniak · Jul 9, 2018

Also worth noting that there is a developers irc channel on freenode if you wish to chat with other engine developers real-time. http://docs.godotengine.org/en/3.0/community/channels.html#irc-on-freenode

Jjunky · Jul 15, 2018

Thanks, I think I will try the irc channel because the issue didn't get much attention. I will wait a few more days cause I'm moving home and if nothing happened on the issue tracker then I will try irc channel.