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Old 23-09-2008, 08:14 PM   #1
BennyK
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Default Reflection questions

How can I make reflections of objects that aren't actually modeled? For example make a reflection of a window or other objects? Do I need to use HDRI for that? Are HDRI visible in reflections?
Also, how can I make a bright shiny specular or reflection such as from the sun?
Thanks in advance,
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Old 23-09-2008, 09:18 PM   #2
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yes hdri
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Old 23-09-2008, 10:57 PM   #3
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You can use any image for reflections, not just HDR's.

As for the sunlight question, I would think thats more down to material properties.
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Old 23-09-2008, 11:32 PM   #4
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Thanks
Quote:
Originally posted by gster123

As for the sunlight question, I would think thats more down to material properties.
Isn't it all about material properties? What do you mean by that?
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Old 23-09-2008, 11:50 PM   #5
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Well if you think of a material like say plain wood, it doesnt have much spec so using a blin you would alter the settings to suit, if its say galss, again using a blin you would alther the spec roll off etc etc to suit the material.

Theres a great texturing articl by leigh van der byl, heres the link

http://www.leighvanderbyl.com/tutorials.html

have a look in the articles section, should give a better description of the material properties and how they realye to real worls materials.
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Old 24-09-2008, 12:14 AM   #6
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So if I take it right, you want to see the reflections of other objects without modeling them? It can idd be done via HDRI or a plain with a texture. Or postediting. But I don't think it can be done in any other way than this.

Good luck!
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Old 24-09-2008, 02:15 AM   #7
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hehe, I already read that.
Problem with regular specular is that you don't get the drastic effect you get when you look at (for example) a car in the afternoon...
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Old 24-09-2008, 11:00 AM   #8
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fresnel effect
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Old 24-09-2008, 03:48 PM   #9
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Thanks, I was wondering how to do that :bow:
But it's not what I was looking for. Here's an example of what I mean:

Can I do that with material properties? I know I can get similar effect with light glow but that won't be consistent...
Thanks in advance,
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Old 24-09-2008, 11:20 PM   #10
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You should be able to.
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Old 25-09-2008, 04:09 AM   #11
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I did some more testing... apparently Mental Ray doesn't work with glow at all...
Quote:
You should be able to.
Does anyone know how then?

I found something to read in my free time
http://en.wikipedia.org/wiki/Lens_flare?
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Old 26-09-2008, 02:13 AM   #12
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I stumbled across something which I think may help:
http://www.thegnomonworkshop.com/news/?p=130
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