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Old 12-03-2007, 03:26 AM   #1
Fire1902006
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Lightning Help

I seem to be having a problem with my lightning of glass.

Maybe one of you all can help. It never seems to be as pure as some of the other glass models I see.

3D Studio Max Version


Specularity Level 275
Glossiness Level 55

Reflective Map: Fall Off
Refractive Map: Raytrace
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Old 12-03-2007, 03:35 AM   #2
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Try changing your reflection setting to Reflect/Reflact or Raytrace and see what that does.
Your scene doesn't really have anything to reflect, but it may make a difference.

Also, if your glass is completely 'thin', try adding a Shell Modifier to it. It'll give it some thickness and make it look better.

Lastly, get some spotlights or something of the sort to get to shadows and whatnot. This will help create the illusion.

Hope this helps.
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Old 12-03-2007, 08:12 AM   #3
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It didn't work, I guess I'll have to give up on trying to make glass. I mean I followed tutorials exaclty but that black space just won't go away
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Old 12-03-2007, 08:19 AM   #4
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it's there a light in that scene?
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Old 12-03-2007, 08:22 AM   #5
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Two Omni lights are in the scene however, no matter how many lights there is still bits of black in the glass that is not shadow. I really don't have an answer for it
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Old 12-03-2007, 10:32 AM   #6
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Quote:
Originally Posted by Fire1902006
Two Omni lights are in the scene however, no matter how many lights there is still bits of black in the glass that is not shadow. I really don't have an answer for it
Your getting black bits of glass because you have a black environment. Glass is reflective, so if you don't give it anything to reflect you will get your background color (black). Lighter also mentioned giving your glass thickness which is also very important to getting believable looking glass.

Try putting a map to reflect in your environment background. Also make sure you have fresnell type falloff for you reflections. The most important part to making good glass (or any reflective material) is to have a good environment to reflect.

Tim J
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Old 12-03-2007, 01:20 PM   #7
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Could this have anything to do with my 3d Studio Max Program being a trial because I never did enter the key I recieved into the program? The same for my VRAY 1.5 Adv.
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Old 12-03-2007, 09:17 PM   #8
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Quote:
Originally Posted by Fire1902006
Could this have anything to do with my 3d Studio Max Program being a trial because I never did enter the key I recieved into the program? The same for my VRAY 1.5 Adv.
No. Even if your using "Trial" software the same issues I mentioned above would still apply. Your software being "Trial" has nothing to do with it.
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Old 13-03-2007, 12:00 AM   #9
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So I tried using the VRAY type and placed a Omni light above the cylinder of glass. And I got the following picture. So can someone give me specifications on how lightining of glass should be so that I don't get these errors because I am doing something wrong obviously
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Old 13-03-2007, 06:23 PM   #10
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I think the verry best tutorial about lightning glass is on Aversis.be

http://www.aversis.be/extra_tutorial...ass_liquid.htm
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Old 13-03-2007, 06:39 PM   #11
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It's LIGHT-ING Dammit....

Your scene is simply refracting the environment.
Adjust your IOR or change the camera angle.
Also, adding some 'environment' (objects & maps. Basically variations in the surroundings) will make the image look better.

To acheive a realistic look, you need to simulate real life environments. Shadows, environmentals and LIGHTING are all important aspects.
Just adding a couple of omnis wont give you a nice render, especially something as perplexing as glass materials.
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Honki's helpful thread of uselessness.

something wrongI think
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