That Black Light demo - anyone know how it works?
Blitz3D Forums/Blitz3D Programming/That Black Light demo - anyone know how it works?
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| As the title really, all the forum links to the demo zip are gone, and I can't seem to figure out how these negative lights and fog give that visual effect. |
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| Does it not use a negative near value for the fog as well? I'm not quite sure myself tbh. But i think it's all to do with the fogging. |
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| I've tried negative fog but I just can't get it right. |
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| I think I remember. Was that the one by big10p or big&? Any idea what the file is called as I have loads of saved demo's on my drives. Were the entities themselves not set with difuse negative color too? |
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This produces a black light. I'm not quite sure what the orginal effect looked like now...Graphics3D 800,600 SetBuffer BackBuffer() light = CreateLight() LightColor light,-255,-255,-255 TurnEntity light,0,40,0 camera = CreateCamera() PositionEntity camera,0,0,-2 s = CreateSphere() EntityColor s,128,128,128 ;CameraFogMode camera,1 ;CameraFogRange camera,-100,100 ;CameraFogColor camera,-255,0,0 While Not KeyHit(1) UpdateWorld RenderWorld Flip Wend |
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| It could be an interesting idea for a shadow engine :o) Don't know how that would work though. |
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| You can get the exe here: http://www.blitzmax.com/logs/userlog.php?user=8652&log=1737 I think the source was released at some point, you could try contacting Big&. |
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