Photorealistic reflections

[himanshuchoudhary]

Hi there super-talented people!

I have a question. From past few days, i have been looking at a lot of glass structures for references on a project.

Whenever i see the refelctions on a cladded wall, there seems to be a certain noise/bump effect on it. here is a very good example.

 

http://img222.imageshack.us/img222/212/glassupfronteh5.jpg

 

If you notice, the wires are not reflecting throughout in a straight line over the surface, but they tend to distort a wee bit on the edges and the middle of the individual surface.

 

Can anyone throw some light on how do i go about to achieve something similar on huge surfaces, where the opposite side of the street appears in a similar fashion on the cladding wall?

 

I use Vray 2.4 and 3dsmax 2013

 

Cheers

[Ismael]

Bump

[Ismael]

http://forums.cgarchitect.com/39247-big-glass-building-tips.html

[himanshuchoudhary]

OK,

Thanks Ismael, i understand the bump effect and randomising the materialbyelement part. Could you throw some more light on the bercon map part? the "bulge" effect..?

[scostumatu]

Hi there - check the below links, its exactly what you need.

 

http://www.ramyhanna.com/2009/01/glass-reflections-its-all-about-bump.html

 

http://www.ramyhanna.com/2013/04/break-up-those-panel-reflections.html

 

 

OK,

Thanks Ismael, i understand the bump effect and randomising the materialbyelement part. Could you throw some more light on the bercon map part? the "bulge" effect..?

[himanshuchoudhary]

Hi there - check the below links, its exactly what you need.

 

http://www.ramyhanna.com/2009/01/glass-reflections-its-all-about-bump.html

 

http://www.ramyhanna.com/2013/04/break-up-those-panel-reflections.html

 

Hi John,

Thanks a ton man! This definitely solved my problem.

[Ismael]

Good reference:

 

http://areaglasswi.com/wp-content/uploads/paint-store-madison-storefront-glass.jpg

[himanshuchoudhary]

Good reference:

 

http://areaglasswi.com/wp-content/uploads/paint-store-madison-storefront-glass.jpg

 

Yes! Exactly Ismael, i think i will post my results once i have something concrete prepared.

[Ismael]

Looking forward to your rendition of the effect.

[Francisco Penaloza]

You can also select the vertex of the glass panel and apply noise modifier, with small values the glass panel will shift randomly and produce non uniform reflection.

as in real life not glass is perfect and none glass panel is placed with the same alignment.

[DanGrover]

You can also select the vertex of the glass panel and apply noise modifier, with small values the glass panel will shift randomly and produce non uniform reflection.

as in real life not glass is perfect and none glass panel is placed with the same alignment.

 

Yup, this is my favourite thing - this works especially well in animations where the camera is moving past or over or panning around the glass - it almost ends up looking like playing cards flipping over when the reflections change from reflecting something bright to reflecting somewhere in the shade.