Tommy L Posted November 23, 2005 Share Posted November 23, 2005 Using vray. What material will reflect less if it has less light shining on it? The front of a silver clad reflective building, half of it in shadow from another building, its difficult to make out where it stops being in direct sun. Lit with a blue environment and one vray light. Cheers for any help, Tom. Link to comment Share on other sites More sharing options...
Tommy L Posted November 24, 2005 Author Share Posted November 24, 2005 C'mon guys, this ones kickin my ass. I got a deadline tommorrow and my image looks awful! Link to comment Share on other sites More sharing options...
Iain Denby Posted November 24, 2005 Share Posted November 24, 2005 Tommy I don't quite understand what you mean. Link to comment Share on other sites More sharing options...
Tommy L Posted November 24, 2005 Author Share Posted November 24, 2005 Im trying to make a material for a rainscreen cladding that is reflective but shows shadows cast onto it quite clearly. (in vray) Ive posted an early render, but the client said he wanted more of a 'mirror finish' to the cladding. When i crank the reflection parameter, i lose the shadow cast by the building opposite. I could also do a shadow pass and mess about in comp, but theres already three passes for each image and the deadline is tomorro. Any help muchos appreciated. Cheers, Tom. Link to comment Share on other sites More sharing options...
donix Posted November 24, 2005 Share Posted November 24, 2005 hope u can post image(s) so that we can see what u mean. Link to comment Share on other sites More sharing options...
donix Posted November 24, 2005 Share Posted November 24, 2005 oops... now ur talking.. Link to comment Share on other sites More sharing options...
Iain Denby Posted November 24, 2005 Share Posted November 24, 2005 I don't thing the light levels effect reflection. Does a mirror reflect less at night when it's darker? If that building was made of mirror, for example (with no transparency), the shadow would dissapear. So the more reflective it gets, the less the shadow appears. That's my theory, anyway! Link to comment Share on other sites More sharing options...
*Pete* Posted November 24, 2005 Share Posted November 24, 2005 I don't thing the light levels effect reflection. Does a mirror reflect less at night when it's darker? If that building was made of mirror, for example (with no transparency), the shadow would dissapear. So the more reflective it gets, the less the shadow appears. true, would that house be a big mirror, it would simply reflect its surroundings ignoring the shadows casted onto it...for example, the building casting the shadow would be reflected in the mirror as a ..eh.."shadowed building" (if it at all would appear in the reflection) but the sun, sky what ever, behind the building casting the shadow would be reflected as bright as they are regardless of where the shadow would be on that mirror... i think the problem here is, that the client doesnt understand that shadow comes of an object blocking a light...and reflection comes from the view angle as related to the angle of the mirror...they are two separate things. Link to comment Share on other sites More sharing options...
Tommy L Posted November 24, 2005 Author Share Posted November 24, 2005 Thanks guys, it was a light problem in the end. I had upped the GI by acciddent and it was nulling the shadows cast by the sunlight. Doh! cheers. Link to comment Share on other sites More sharing options...
Tim Saunders Posted November 26, 2005 Share Posted November 26, 2005 i wouldn't mind seeing the finished render. you "wip" looks great. aside from the reflection issue you were working on. great job on the comping. i see a few around that are comped so well. just hoping to get some pointers on that. i assume you take you photo first. then what, position the rendering on top of the photo then erase what is in front of it? what about trees? do you bring in new trees and erase the origionals so they can apear in front of the render? Link to comment Share on other sites More sharing options...
Ismael Posted November 27, 2005 Share Posted November 27, 2005 I think that "Blur" posted a material called Shadow/Light where two materials get blended based on being in a shadow or not. Just a thing to remember, even if problem solved already. Ismael Link to comment Share on other sites More sharing options...
Tommy L Posted November 28, 2005 Author Share Posted November 28, 2005 Images as requested. Theyre for planning and didnt get the thumbs up at a meeting on friday so they will have to change again... Any advice much apprecieted. Its a while since ive done a night shot and any advice on comping would be great. Cheers, Tom. Link to comment Share on other sites More sharing options...
Tommy L Posted November 28, 2005 Author Share Posted November 28, 2005 I think that "Blur" posted a material called Shadow/Light where two materials get blended based on being in a shadow or not. Just a thing to remember, even if problem solved already. Ismael Could you elaborate? I would love to get my hands on that material or a tutorial to the same effect.. Tom Link to comment Share on other sites More sharing options...
Ismael Posted November 28, 2005 Share Posted November 28, 2005 First look at creating a new material and see if you may have those materials or shaders. Well here are some links for the mats and ideas how to use them: http://www.maxplugins.de/max4.php?search= http://www.neilblevins.com/cg_education/metal_and_refs/metal_and_refs.htm http://www.neilblevins.com/cg_education/translucency/translucency.htm Ismael Link to comment Share on other sites More sharing options...
tommyjj Posted November 28, 2005 Share Posted November 28, 2005 I recognise the building opposite... It's in Vauxhall isn't it? I think Jeffery Archer used to live there!! very nice all the same! Link to comment Share on other sites More sharing options...
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