Glass reflection

snave7 · March 1st, 2007

Hello cgfriends,
This is a commercial image that I'm changing color and some modifications. The client ask me to put bronze glass .. and I want to knw if someone can suggest some tips for making a gud reflective glass.... here an attachment of a test render.

alfienoakes · March 2nd, 2007

Give us some more details..

What are you using as your render package..? Do you use Vray..?

STRAT · March 2nd, 2007

also, it'd look better in an environment rather than on it's own. make the glass transparent too, so it's nicely reflective and see through. at the moment it looks more like a mirror than a window.

snave7 · March 2nd, 2007

alfienoakes - I'm using Lightwave 8.0, rendering with Monte Carlo radiosity using Fprime. some post work will be done in Photoshop.

Strat - I think u r right I must reduce the opacity of it.. shud I put a plane behind.. bcoz I've not modeled the interior ?? Check on Finished work I've posted a previous version of Peninsula building .

Thanks for Help ! vbmenu_register("postmenu_154029", true);

Timothy Saunders · March 2nd, 2007

What I do when I don't have the time to model a detailed interior for an exterior view (I rarely do have the time) I mak a solid wall like 10 feet or like 2 meters back from the window. stretch that wall all the way up the building. have 1 or 2 walls perpendicuar so there are just like 3-4 total walls going up the entire building, then add the floor/ceilings at each level. Then make some flat rectangles with a self-illuminated material on them so from far away they look like flourescent light panels. Space them with a few on each level. Now when you look up the building, you will see at least something through the glass. And as Stephen said, use an environment for the reflection. Getting your glass to look right is always a combined effort to get the opacity/refraction right and the reflection right.

snave7 · March 3rd, 2007

Thanks a lot Timothy for the tips.. It really make sense.. and very quick solution .. I'll do it and come back to you .. thanks mate .. appreciated .. !!

snave7 · March 14th, 2007

Hi everyone on this thread.. here I come again with the final render of the image..and according to ur advices I got this.. a special thanks to all specially to Timothy Saunders for the tips.

IC · March 15th, 2007

Good glass in LightWave is generally achieved with a combination of a gradient to give some fresnel effect to the reflection (or use the fresnel shaders if not using FPrime) and a good reflection environment map.
Take specularity down to 0% and diffuse to below 10%.

The interior isn't too important if the reflection works well and you're not too close up.

snave7 · March 15th, 2007

Thanks IC .. u opened my eyes and save my life.. I'm going to stick to it and come back with the result.

March 2nd, 2007	#2 (permalink)
alfienoakes Veteran Member Join Date: Sep 2005 Location: England, West Sussex Age: 40 Posts: 912 Name: andy wiggins	Re: Glass reflection Give us some more details.. What are you using as your render package..? Do you use Vray..? __________________ Andy Wiggins MAKING COFFEE. Making a cup of coffee is like making love to a beautiful woman. It's got to be hot. You've got to take your time. You've got to stir... gently and firmly. You've got to grind your beans until they squeak. And then you put in the milk. Swiss Tony.

March 2nd, 2007	#3 (permalink)
STRAT Super Moderator Join Date: Dec 2001 Location: Cardiff, Wales, UK. Age: 37 Posts: 6,881 Name: Stephen Leworthy	Re: Glass reflection also, it'd look better in an environment rather than on it's own. make the glass transparent too, so it's nicely reflective and see through. at the moment it looks more like a mirror than a window. __________________ http://www.buzzbox.eu/

March 2nd, 2007	#4 (permalink)
snave7 Junior Member Join Date: Aug 2006 Location: Mauritius Posts: 21 Name: Evans Anthony	Re: Glass reflection alfienoakes - I'm using Lightwave 8.0, rendering with Monte Carlo radiosity using Fprime. some post work will be done in Photoshop. Strat - I think u r right I must reduce the opacity of it.. shud I put a plane behind.. bcoz I've not modeled the interior ?? Check on Finished work I've posted a previous version of Peninsula building . Thanks for Help ! vbmenu_register("postmenu_154029", true); __________________ no this is not a fake image, it's a 3D !;) evans_107@yahoo.co.uk

March 2nd, 2007	#5 (permalink)
Timothy Saunders Moderator Join Date: Dec 2004 Location: Salt Lake City, Utah Age: 32 Posts: 1,226 Name: Tim Saunders	Re: Glass reflection What I do when I don't have the time to model a detailed interior for an exterior view (I rarely do have the time) I mak a solid wall like 10 feet or like 2 meters back from the window. stretch that wall all the way up the building. have 1 or 2 walls perpendicuar so there are just like 3-4 total walls going up the entire building, then add the floor/ceilings at each level. Then make some flat rectangles with a self-illuminated material on them so from far away they look like flourescent light panels. Space them with a few on each level. Now when you look up the building, you will see at least something through the glass. And as Stephen said, use an environment for the reflection. Getting your glass to look right is always a combined effort to get the opacity/refraction right and the reflection right. __________________ www.3dtim.com

March 3rd, 2007	#6 (permalink)
snave7 Junior Member Join Date: Aug 2006 Location: Mauritius Posts: 21 Name: Evans Anthony	Re: Glass reflection Thanks a lot Timothy for the tips.. It really make sense.. and very quick solution .. I'll do it and come back to you .. thanks mate .. appreciated .. !! __________________ no this is not a fake image, it's a 3D !;) evans_107@yahoo.co.uk

March 15th, 2007	#8 (permalink)
IC Veteran Member Join Date: Apr 2003 Location: Edinburgh, Scotland Age: 37 Posts: 2,265 Name: Iain Collins	Re: Glass reflection Good glass in LightWave is generally achieved with a combination of a gradient to give some fresnel effect to the reflection (or use the fresnel shaders if not using FPrime) and a good reflection environment map. Take specularity down to 0% and diffuse to below 10%. The interior isn't too important if the reflection works well and you're not too close up. __________________ http://iainc.carbonmade.com/

March 15th, 2007	#9 (permalink)
snave7 Junior Member Join Date: Aug 2006 Location: Mauritius Posts: 21 Name: Evans Anthony	Re: Glass reflection Thanks IC .. u opened my eyes and save my life.. I'm going to stick to it and come back with the result. __________________ no this is not a fake image, it's a 3D !;) evans_107@yahoo.co.uk

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