Hi! I made an example of a "light cone" effect. It is a post processing effect, that makes an object illuminate everything inside of it. It would be usefull for landing lights or similar objects.
This version uses blending, but the final version should use stencil buffer, once/if we get effects to support them. Because of the blending, the lighting value is 1.5 * the value of the underlying pixel. This means that during night, the light will not be very visible... I found no way to overcome this without the whole cone/model becoming visible. One way to cheat this is to add the object multiple times, since the lighting cumulates. Also fog does not work correctly. Attached is the effect file. I also had to make simple vertex and fragment shaders to get the effect working. Also, I attached an example of the cone model and its xml. Two screenshots from during the development is here: http://users.tkk.fi/~lapelto2/fgfs/fgfs-light.png and http://users.tkk.fi/~lapelto2/fgfs/fgfs-light2.png I hope someone finds this dev version usefull, maybe after the release we can get a "real" one :) Lauri ("Zan" on IRC) -- Lauri Peltonen lauri.pelto...@gmail.com
light-cone.eff
Description: Binary data
light-cone.vert
Description: Binary data
light-cone.frag
Description: Binary data
light-cone.ac
Description: Binary data
<?xml version="1.0"?> <PropertyList> <path>light-cone.ac</path> <effect> <inherits-from>Effects/light-cone</inherits-from> <object-name>Cone</object-name> </effect> </PropertyList>
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