lights

Calculating how visible an object is in a 3D-scene for use in game logic/AI

I am starting a game project which will allow characters to hide in dark areas. Hiding in a dark corner should make it harder for other characters to see you. What I need is a way to calculate how the lighting conditions are where the character is located. The ideal would be to have a double getLightFactor(GameCharacter observer, Gam...

OpenGL: Rendering more than 8 lights, how?

How should I implement more than 8 lights in OpenGL? I would like to render unlimited amounts of lights efficiently. So, whats the preferred method for doing this? ...

Lightmap with multitexturing, disabling lighting for one of the textures?

How i can disable lighting for only one of the textures in this multitexturing scheme? I tried to use glDisable(GL_LIGHTING) and glEnable(GL_LIGHTING) but it doesnt remember the settings when i render the quad. Here is the code snippet: glDisable(GL_LIGHTING); glEnable(GL_BLEND); glDisable(GL_TEXTURE_RECTANGLE_ARB); glDisable(GL_TEXTU...

Does textures drawn with glDrawTexfOES are affected by lights ?

Hi all, currently, I use glDrawArrays to render texture in simple quads. I hope increase framerate by using glDrawTexfOES instead (all my sprites have the same z position). Before doing this work I would like to know if these textures will still be affected by my 3d lights. ...

Div Lights Fade Script - Not working on Mac?

Hello, I have a little javascript/css script that fades my website to black, except for the video in the middle, to give a sort of theatre effect Example : http://www.animefushigi.com/bleach-episode-293 Click LIGHTS OUT The script adds a black overlay on the entire page except for the "vidboxx" div. Some people say that it is worki...