POV-Ray : Newsgroups : povray.binaries.animations : Citroen GS on the Bullet Physics Playground : Re: Citroen GS on the Bullet Physics Playground Server Time
15 May 2024 14:52:33 EDT (-0400)
  Re: Citroen GS on the Bullet Physics Playground  
From: Jaime Vives Piqueres
Date: 3 Feb 2013 14:47:01
Message: <510ebeb5$1@news.povray.org>
El 03/02/13 18:33, Le_Forgeron escribió:
> To be even better IMOH, could you somehow pattern the wall and may be
> a bit the black ground. A large checker on the wall, and maybe some
> lines on the ground ? Aim: to ease my view of inertia / non-drifting
> rear wheels on sequence where only the car, the ground and the wall
> are. So far on such sequence, I cannot assert that the car is not
> gliding.

   Ah, yes... there were some ground markings on the sim, but I misplaced
them on the render and are below the ground. You're right that it
assists greatly on perceiving the realism on the motion... but I didn't
think on patterning the wall too: thanks for the idea.

   Oh, and of course it's sliding like mad in turns, mainly because the
angular speed of the wheels is not controllable at the moment, but just
fixed and continuous once you press the accelerator key (until you hit
the brake key). But I like drifting very much... ;)

> The first step of stair has an unrealistic front wheel move (jumping
> from one rotation to another).

   As I said to Christian, it was me pressing left/right as mad trying to
get a better attack angle...

> before the ramp, there seems to be some stick/shadow under the front
> right wheel, as if something was broken.

   It's the lower control arm of the wheel, which flexes under the
chassis weight. And no, it isn't broke (not in that run, tough it breaks
sometimes). It's the GS model which is missing some geometry there... my
fault, as I'm the one that modeled it. :)

   I'm just polishing some details and will commit the LUA script later,
then will post on my site the customized POV export to render it using
the already available GS model.

--
Jaime


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