View Full Version : "that's a chevy!?"

07 July 2004, 06:11 PM
i recently finished this piece.

larger versions of the individual shots are here:

and here is a small animation of the convertible mechanism:

please tell me what can be improved about the piece.

Rabid pitbull
07 July 2004, 06:32 PM
Excellent work, no cc from me! Cool animation, maybe too fast though.:shrug:

07 July 2004, 07:41 PM
Well, first time I have seen 1 of these modeled, well done!
Here are some thoughts as there isn't much to critique.
First, the studio enviro is soo overdone by car modelers, myself included. How about some sort of more dramatic lighting, not necessarily adding an environment, but having the studio lights create a mood by using some color or light faloff?
In the animation, I notice the greenish blue sky color in the reflections, I think the color detracts from the blue paint, it almost looks muddy when reflected. Not sure how to fix that, but might be worth playing around with.
Excellent work, really nothing to crit.:)

07 July 2004, 12:22 PM
there is no sky at all. actually its just a white skylight. i do see the problem you are pointing out though, but i think it may be a combination of low GI sampling and the fact that my DivX encoding is producing really bad reslts. Notice the white background came out as grey in the divX. No matter how high i push the divX compression bit rate, the color is coming out muddied and faded. I looked for color/contrast controls and can't find any. I don't know what's wrong yet and noone has been able to tell me. Fortunately, this problem doesn't show up in the uncompressed animation.

also, thank you for the lighting comment! i just learned how to use HDRI maps effectively yesterday and am considering putting the truck in a radiance-mapped environment. I will also experiment with doing some dramatic lighting, as you suggested! thanks :)

oh one more thing. the paint isn't one color. Its actually three colors as i'm using Brazil r/s paint material. That may also be why you got the impressoin that there was a greenish skylight. The main diffuse color on the paint is blue and the falloff color is kind of a vibrant greenish color. That's what gives it that blue to green changing look ;)


07 July 2004, 01:55 PM

08 August 2004, 03:54 AM
It's fantastic! Don't change a thing :)

Nice raytracing.

08 August 2004, 07:57 PM
a fellow CGTalker wanted to see some pictures of how I modeled my truck. so Here are some very early mesh images.

Note: I don't think most car modelers use the technique i used here. A lot of them build the pieces exactly as you see them as they move along but that technique can be tricky if you have trouble managing workflow. The method i used here sticks to a solid workflow of low-detail to high detail:

08 August 2004, 03:22 AM
pha3z (member.php?u=87044), I'm really interested in how you modeled, can you write a short tutorial on how you do it? or direct us to one, thanks.

if you write a tutorial in th forums, I can put it on my site so people can view it easier to.

08 August 2004, 05:35 AM
i searched around on google and found this for ya:

its a little out of date. don't take what the guy says in the text too literally. for example, in one part he says "use an extrude modifier". we don't use extrude modifiers anymore, we just click the Extrude button :P But it lets you see the general principle of how I went about doing my truck.

Also, I think when that guy creates the cracks in the metal of his car, he just makes them dents. You should make them cracks that break the metal into pieces. Then you should fold the metal under like on a real car so it appears to have thickness.

08 August 2004, 01:26 PM
Hiya pha3z,

Had to come have a i pick my jaw of the ground. Cool Chevy, where can i get on hehe.

Great work :thumbsup:

08 August 2004, 03:54 PM
hehe, thanks element! :)

This baby packs 300HP with an S-10 base. I hear that they handle like a heavy roadster with rear-wheel drive. i've never driven one myself :(
it starts at $44,000 in the U.S. Think you can afford one? ;-D

08 August 2004, 04:32 PM
one of the directors over at the amazing Dark Vortex project asked me to render a desktop version of the rear shot of my SSR. I rendered at 1600x1200. I had to pump the GI sampling uber high to get the paint to look clean at that resolution. Anyone who uses this better be thankful for the 4 hours and 50 minutes my 3200+ chugged on it!

download for your desktop here!

08 August 2004, 10:14 PM
Excellent model youve got there. Nice and clean. And a good choice of car to boot.

I agree the animation is a bit on the fast side. One thing though. Youve forgotten the thing almost all car modellers forget. The windshield wipers! You might wanna add those to complete the car :)

And I noticed you omitted the blinkers in the grille and the mist lights on the front bumper. Was this on purpose?

Great work anyhow!

08 August 2004, 11:36 PM
Nice truck, IT looks real i'm not able to makes Vehicule ireally don't know why :(

mabe you should try to put it on a real pic to see difference and being really perfect

Nice work so

08 August 2004, 07:28 AM
thanks for the comments guys :)

but i ommitted all of those things deliberately. The point was to make it beautiful, not perfect! I've got other projects i need to be working on, now! ;)

08 August 2004, 11:32 AM
YEah i got something for you

Perfection is the ennemy of Excelent ;)

08 August 2004, 03:15 AM
do you use hdri rendering? if so, how? i love your renders

08 August 2004, 04:16 AM
i have used hdri rendering but not in those particular renders. there's only two white cards in that image and a black background (from the perspective of the truck). Only the camera sees the white background.

one of the white cards is a disc floating above the truck.
the other white card is a tube cylinder wall that goes around the entire scene. both of them you can see in the reflection of the paint if you look closely :)

08 August 2004, 07:16 AM
Only problem I see is an MSRP waaaaaaaaaaaaaaaaay too high for a chevy with that lackluster of performance. You can find a proper corvette for less then that, and new 2002 z28 camaro would've blown the doors off that car for about $15k less.

Sorry... Im as much car guy as I am animator :)

I agree with the guy who said the roof anim is a bit too fast. Other then that, I think your render looks great!

08 August 2004, 09:04 AM
LOL switchblade! yeah i know they'r really expensive. you're not really buying performance, you're buying something that looks like nothing else on the road. I guess if you want to have something different, you've got to spend a lot of money. i'll just stick to my models before i spend $44k. :D

08 August 2004, 11:23 AM
Awesome modelling skills :) And nice lighting. I really got no crits...
You really do good! and that you got...its unique...

( PS : Hey pha3z can you give me your model to feed it onto my Metal 3D sculpting machine to make one of these? :P )

08 August 2004, 11:56 AM
you have a sculpting machine?? you're joking right?


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