Jump to content
Hash, Inc. Forums

Improved car driving rig


Recommended Posts

I found that I get a slightly more believable driver response if I constrain the chest (at -50%) and skull (at +50%) to the bone that automatically aims the chassis and turns the steering wheel (see image).

And about that null; for the whole rig to work it has to follow the same path as the car's model bone but stay centered between the front wheels. At present the only way I can figure out how do that is to set correctly chosen key frames for the ease of both the car and null. This is trivial if the ease timeline is a straight line from 0 to 100%. But it became trickier if the car changes speed during the chor. Can anyone suggest a way to constrain the null to the path as well as the car and keep a constant path distance between the two?

aim_steering.jpg

Link to post
Share on other sites

I'm afraid i can't get the movie to play. Can you edit you post so that the file is just a "link" instead of inline?

(I tried editing it with my mod powers and that didnt' work.)

Link to post
Share on other sites

Hmmm. I tried it after posting and had no problems. I it may be a codex problem. When I first started producing clips from PowerDirector using H.265 HEVC, VLC had no problem but when I tried the Windows native media player it gave an error message and a link to the Windows store to buy the new codex for something like $1.25. After the install, it was happy. I'll see what I can do.

Link to post
Share on other sites
Quote

Can anyone suggest a way to constrain the null to the path as well as the car and keep a constant path distance between the two?

An expression will do that.

(I was able to do it in v15. v19 seems to have a bug I will report.)

(tell me if you can't see this)
 

 

You still have three weeks for your Prehistoric entry!

Link to post
Share on other sites

This became a good news, bad news, good news story.

I successfully reproduced your example in v19e. GOOD

Used the technique in a car steering project but every time the project was saved, closed and re-opened, the constraint aiming the steering bone roll handle at the null went wacky and needed repairing meaning it couldn't work using Netrender. BAD

Used your technique to properly position a null under the car's front axle, then constrained a second null to translate to and orient like the front axle null, then constrained the roll handle of the steering bone to point at the second null. This always survived the project close and re-open. GOOD

Thanks again for your efforts Robert.

Link to post
Share on other sites
Quote

Used the technique in a car steering project but every time the project was saved, closed and re-opened, the constraint aiming the steering bone roll handle at the null went wacky and needed repairing meaning it couldn't work using Netrender. BAD

We should probably try to reproduce that for a bug report.

Steffen has fixed the expressions crash for v19k

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...