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Thread: help on glossy scene / light panels

Started 1 month, 3 weeks ago by jablinko
hi there am doing a little thing with a shiny object (cell phone) spinning, and have tried to follow some of the wisdom on this board to make the scene work for this, to have a mixture of soft and crisp glossy reflections i have put gradients into the alpha of the luminant material on the light panels and have put the light panels close to the object to avoid strobing I read about...
Site: CGSociety - Society of Digital Artists  CGSociety - Society of Digital Artists - site profile
Forum: Maxon Cinema 4D  Maxon Cinema 4D - forum profile
Total authors: 8 authors
Total thread posts: 22 posts
Thread activity: no new posts during last week
Domain info for: cgsociety.org

Other posts in this thread:

danielHinton replied 1 month, 3 weeks ago
was this more like what you wanted?

jablinko replied 1 month, 3 weeks ago
i guess i was just looking for feedback on what i was doing strangely or could do better in terms of my light panel set up, and luminant material setup the file i posted is basically what im working with minus my main model and with a simplified shape as the main object

danielHinton replied 1 month, 3 weeks ago
fair enough. Couldn't be arsed to render a preview of the animation but I'll take your word for it that you've got the cards close enough to the model to get rid of flickering. Those gradients are nice but have you tried using similar setup as photographers? That image I posted (you can right click to view it, i messed up the link) i just boosted the reflectivity, got rid of the colour, ...

jablinko replied 1 month, 3 weeks ago
i'm sorry, i'm not seeing your link and really, i'm unsure as to my approach - hoping to improve my strategy. would love to figure out what im doing that makes it all milky and not more contrasty do i need to tweak something with the reflection properties in the black reflective material? thanks again

Little_Devil replied 1 month, 3 weeks ago
i don't know if it is my english again, but at least for me it is not perfectly clear what you want to achieve. nevertheless you should be aware of the fact that *glossy materials* depend on more than the reflection channel. the most important point to achieve convincing results (especially when aiming for a studio setup) is that your reflections should match the actual lighting ...

deepshade replied 1 month, 3 weeks ago
very quick setup any help?

jablinko replied 1 month, 3 weeks ago
thanks deepshade the main objective is for my object (shiny cell phone) to be able to spin and get nice reflective areas moving across the shiny sirfaces of the phone. my problem earlier with my setup was kind of 'milky' reflections deepshade, i like the contrast values yours creates but its not really a setup that works well with the phone spinning and moving around the scene ...

deepshade replied 1 month, 3 weeks ago
I think you are going to need to post an example of what you are after.

keithrondinelli replied 1 month, 3 weeks ago
Something like this? Glossy Spin

jablinko replied 1 month, 3 weeks ago
yes exactly its a dark, but reflective phone, but in a grey world like that. thats the idea. i would do multi pass to seperate out the reflections, but generally its a workflow that i only sort of get, and mainly from my readings (misunderstandings) of what ive read on here so far my strategies have included square objects with bright luminance values with a box gradient in the ...

 

Top contributing authors

Name
Posts
jablinko
9
user's latest post:
CGTalk - help on glossy scene /...
Published (2009-11-09 01:46:00)
thanks chris, you're the man btw so the environment channel is spherically mapped, so if you paint a square in bodypaint, and use that texture, will you have weird pinched squares in the env. channel? this is all super instructive. chris, was the envornment channel trick how you and the monkey created that nice collaborative piece with all the sponsors etc. i remember reading a really nice write up the monkey did about that
deepshade
3
user's latest post:
help on glossy scene / light panels
Published (2009-11-07 20:36:00)
Have to agree with KR Studio with 3 boxes - maybe a mask over one or two of the lights? Its really up to you how big, bright and what masks you use over those lights. Where you position, angle them, do you illuminate the background or just have a grey. Will be interesting to see your final render.
danielHinton
2
user's latest post:
help on glossy scene / light panels
Published (2009-11-04 01:15:00)
fair enough. Couldn't be arsed to render a preview of the animation but I'll take your word for it that you've got the cards close enough to the model to get rid of flickering. Those gradients are nice but have you tried using similar setup as photographers? That image I posted (you can right click to view it, i messed up the link) i just boosted the reflectivity, got rid of the colour, added a fresnel to the reflection channel...
keithrondinelli
2
user's latest post:
help on glossy scene / light panels
Published (2009-11-07 19:05:00)
I think perhaps you might be over thinking it a bit. Set up a very simple material in your phone. In my example, it's a dark gray color in the color channel, and a reflection channel, with a slight fresnel (not too much fresnel, or you'll lose that gloss you're looking for, but just enough to add some variation in the reflection). Then, set your object up in a gray space (in this case, just a floor that gently rolls into a back...
MRAY
2
user's latest post:
CGTalk - help on glossy scene /...
Published (2009-11-08 09:50:00)
Hey jablinko! The gradient will be differant depending in the geometry its applied to -- you just gotta mess with it until it looks right. That one was done with a couple stripes of gradient in the 2d-v position and no their are no lights in the seen at all. Also if you want to have something reflecting in it I think you could just thow on a compositing tag and include or exclude whatever you want to be reflected -- not sure though I've...
C.Smith
2
user's latest post:
CGTalk - help on glossy scene /...
Published (2009-11-09 02:12:00)
Quote: Originally Posted by jablinko thanks chris, you're the man btw so the environment channel is spherically mapped, so if you paint a square in bodypaint, and use that texture, will you have weird pinched squares in the env. channel? this is all super instructive. chris, was the envornment channel trick how you and the monkey created that nice collaborative piece with all the sponsors etc. i remember reading a really nice write up...
Little_Devil
1
user's latest post:
help on glossy scene / light panels
Published (2009-11-04 14:05:00)
i don't know if it is my english again, but at least for me it is not perfectly clear what you want to achieve. nevertheless you should be aware of the fact that *glossy materials* depend on more than the reflection channel. the most important point to achieve convincing results (especially when aiming for a studio setup) is that your reflections should match the actual lighting setup of the scene. this is because you actually want...
SilverCity
1
user's latest post:
CGTalk - help on glossy scene /...
Published (2009-11-09 02:04:00)
Here are some free HDR studio environment maps posted by zbyg: http://forums.cgsociety.org/showthread.php?t=671334 Here are the same HDR's in a higher resolution. Non-torrent links are further down the page: http://forums.3dtotal.com/showthread.php?t=62769

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