Anton's OpenGL 4 Tutorials by Anton Gerdelan

Author:Anton Gerdelan [Gerdelan, Anton]
Language: eng
Format: epub
Published: 2014-06-25T03:00:00+00:00

The mesh here is about half-way into the fog range. The fog colour is grey, which looks a bit strange with a black background.

If your fog is used to hide the far clip plane and cull distant scenery then we can do an old trick and set the background colour the same as the fog colour to make it look like things are disappearing into the fog.

Non-Linear Fog

Our brains are hopeless at perceiving rates of change that are non-linear, so most of the time using an exponential or a log function isn't even going to be noticed, so we won't bother. However, for very large scenes, it can be really interesting to use fog to visualise distance (think mountains fading into a blue colour). We are terrible at judging distance in 3d graphics, but adding subtle queues like colour fade can greatly improve this. If you have a really big space then a linear fog fade is going to be very obvious - you might like to manipulate this spatial awareness one way or the other by using an exponential or a logarithmic function instead.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.