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Old 24-11-2004, 01:46 AM   #1
BillyZ
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Default Normal Mapping?

In class today, my teacher showed me how to do normal mapping in maya, by taking a high rez object and converting its mapping on to a low rez object. Its kinda cool that maya had the tool built in all along, although.. he showed once the conversion was made. Only in real-time high rendering you could see the difference, when you rendered it.. it would show the low poly object without any change? Does anyone know a way around that without having to take a screen capture or using a game engine?
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Old 24-11-2004, 06:31 AM   #2
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Nvidia has some plug-ins for special materials that would react to lights and let you see the normal map results. i don't have the link offhand, but you should be able to find it at their site.
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Old 24-11-2004, 01:04 PM   #3
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... conect the out color of the normal map to the normal camera of the shader... render normally...

TIP: one thing ive noticed when normalmapping is that if it finds 2 heights at the same spot it doesnt takes the greatest one but crashes... so to make complex patterns like the chainmail or scales youll have to make a displacement map frist, then apply it to the mesh then convert displacement to polys and THEN those polys to normal map

(I still hate uvmapping and making tiles...)

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Old 24-11-2004, 01:16 PM   #4
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the image on the right is just a plane with a blinn and the normalmap connected to the "camera normal" of the blinn
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Old 24-11-2004, 01:30 PM   #5
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Old 26-11-2004, 04:58 AM   #6
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Yeah that works for renders. The Nvidia plugins let you see the results in real-time.
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Old 26-11-2004, 08:24 AM   #7
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Thanx for the info, I'll have to pass that on to my teachers and give it ago.
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