Fog of War

coder543 · Post by **coder543** » Tue Jun 16, 2009 11:27 pm

Is there a simple way to do selective fog of war? Say that I have user controlled ships, planets, and stars. Is it possible for me to make only the ships vanish when outside of the given sensor range?

Kalango · Post by **Kalango** » Wed Jun 17, 2009 1:50 am

You can make like this:
Each unit you have has an light scene node attached to it (you can also make only one light, depending on the camera position). If enemy units are inside the range of that light, the they're visible, if not, fog of war wont let you see your enemy nodes....
You may have some bugs regarding this technique if you use something like setVisible, try to update the position of your enemy nodes independently of the node(mesh) itself (sorry, realy dont know how to put this in a better phrase).
Anyways....try it!

coder543 · Post by **coder543** » Wed Jun 17, 2009 11:36 am

How would I attach a LightSceneNode to a unit?

Sylence · Post by **Sylence** » Wed Jun 17, 2009 12:24 pm

Set the parent of the light ndoe to the node of the unit.

coder543 · Post by **coder543** » Wed Jun 17, 2009 1:22 pm

Darktib · Post by **Darktib** » Fri Jun 19, 2009 6:55 pm

You can use a texture which contains the fow poxer for each tile on the map, pass it to a shader, which will multiply each vertex colour by the coulor of the correponding pixel.
Your fow texture will be in black and white.