Car Paint and Render discussion

#1

[left]HELLO every one[/left]

  [left]I wanted to start this discussion about car paint and car render setup because I noticed a lot of skilled modelers can do great cars models but they cant – for some reasons – they cant do the render and the textures right so we will going to need the experts help on this one and I think even the novice can help each other by sharing there experience 
all your hard work is driven away by bad texture and render see what am talking about [[color=silver]Link](http://showthread.php?p=3217696#post3217696)[/color] and my car here [[color=silver]Link[/color]](http://forums.cgsociety.org/showthread.php?t=315142)and to show you the dark side bad model and great render [[color=silver]Link](http://www.3dtotal.com/home2/gallery/images/big/2174.jpg)[/color] [/left]

  [left]Please peer in mind before u post [/left]

  [left]Try to show us photos of your render setup as much as u can [/left]

  [left]Tell us what render u use [/left]

  [left]Please when you add photos to your post try to make sure that you host them at reliable hosting [/left]

  [left]Don’t post any thing like wow this is great topic or thank u lot of this info we are trying to keep the decision as clean as possible [/left]
#2

[left]About me am using Brazil 1.2 and max 8 [/left]

[left]For the car paint and the glass material u will fined them in the attachment file [/left]

[left]Here is my lighting setup I used (Brazil light) 3 Omnis the one in the middle only ambient mult (0.5) and the other 2 lights were Omnis lights with mult (0.8) I used shadow map with size (1024) for shadows it gives me the look I want for the shadows and it made my render very quick[/left]


[left]For the render setup image sampling P3 Min sample 1 and the max sampling value is 2 in some renders u have to higher these values a little[/left]

[left]Using HDR map as environment map [/left]

[left]The final render looked like that  [/left]


[left]We can say its good for 4 min render but in terms of realism it’s fair to say it is a very very bad render it doesn’t look like the real thing as we can see it right here [color=silver]LINK[/color] [/left]

[left]One more thing for the Bloom effect I tried to use the Blur effect built in with max and I have to report its very un realistic the best bloom effect I have ever seen was with [color=silver]simon reeves[/color] old E-type Jaguar just download his demo reel in fact when it come to cars [color=silver]simon reeves[/color] is the man any how any thoughts??[/left]

#3

hi there,
i checked up your mercedes slr and it’s pretty good…nicely modeled…i think you too are having “rendering” problems as i had most of the time…nice modeling but not satisfactory renderings…

as i see you use brazil as a renderer, so i don’t recommend using omnies or skylights as light sources, brazil does not work nice with them…you can use direct lighting or an artifical lighting as a light mapped plane above the car.

AND always use brazil materials for materials, use brazil glass for glass material and don’t forget to make a closed box for glasses, if you don’t do that the light does not reflect real enough.

for the brazil render settings, i use 15 for primary sample and 5 for secondary sample rate… and 3.rd degree resolution settings…

there are some good tutorials about lighting and rendering setups :
'Seat Leon II’ by David Melchor Díaz
"The making of Bruttus 4Z" by Joao Milando
"Texturing and lighting the Nissan R390 GT in 3ds max 5" by Enrico Nencini

and also for more check www.3dtotal.com

#4

[left]TheAnarchitect thank u for u comment and sorry for not replying so soon I was so busy last few days [/left]

[left]About your comment all this lighting setup especially “artificial lighting as a light mapped plane above the car.” is no good for animation purposes or in terms of realism am trying new thing this days called 3 point lighting and it’s a famous lighting setup am trying to do it properly I don’t remember the link for its tutorial but I think google will do [/left]

 [left]and for the second point of ur comment I don’t use brazil materials I hate especially the way glass map look !! Or I can't use it right but any how I don’t care cuz I think my glass work just fine [/left]

   [left]For the "closed box for glasses" what u mean by that can u explain more??

for the third point of ur comment I think u use much sampling values " I use 15 for primary sample and 5 for secondary sample rate " u don’t need to use this high values unless ur doing animations I think 3/6 will do just fine for still images ur wasting ur time with this high values u can tweak ur render time better than that [/left]

 [left] For tutorials[/left]

[left]‘Seat Leon II’ by David Melchor Díaz [/left]

[left]very good tut but the guy uses Vray I don’t use it plus he uses Photoshop after the render witch I hate so much I cant do animations with that [/left]

 [left][[b]"The making of Bruttus 4Z" by Joao Milando[/b]](http://67.15.36.49/team/Tutorials/bruttus/bruttus_p1.asp)[/left]

[left]here he uses GI I don’t like to use GI thu it gives amazing results but very costly render time he render his car in – for 1 frame 800x600 – in 1 hour 20 min this is CATASTROPHIC THAT’S MEAN I WILL RENDER 1 SEC ANIMATION IN STAGGERING 34 HOURS see my point u cant just use GI[/left]

 [left][b][color=orange]["Texturing and lighting the Nissan R390 GT in 3ds max 5](http://67.15.36.49/team/tutorials/nissantex/nissantex1.asp)[/b][[b]" by Enrico Nencini[/b]](http://67.15.36.49/team/tutorials/nissantex/nissantex1.asp)[/color][/left]

[left]Same lighting setup as the first tut and uses GI no need to talk more I think[/left]

 [left]At last TheAnarchitect can u share Ur lighting setup with US? [/left]

[left]Why no one joined the discussion I think it’s an important subject??[/left]

#5

It means that you have to have faces on both the inside and outside the window glass, so it doesn’t look like a plane (with only one side), but rather like a box.
Simple explanation: use shell modifier. :wink:
Only it’s not because of the reflections, it’s because of the refractions, because it modifies the angle at which the ray of light refracts when it passes throught the glass. Like in real life, it has to pass twice between air and glass, that is when it refracts. Some renderers and materials don’t work this way, though.

#6

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