NVil Forum

General Category => NVILL Discussion => Topic started by: steve on June 16, 2012, 07:42:53 am

Title: clip plane
Post by: steve on June 16, 2012, 07:42:53 am

I have been attempting to adjust the near clipping plane. On going into the options and changing the "Near", when getting to 1.000 or below, it starts to clip the Far and does not change the near.

For unselected objects it is not really a problem, but a selected object appears to have a different near clip plane distance, and is clipped before unselected objects when zooming in.

Could that be looked at please?


Regards,

- Steve

Title: Re: clip plane
Post by: IStonia on June 20, 2012, 11:52:49 am

It is z buffer calculation precision related. When near plane and far plane are too far apart, the far plane value becomes unreliable. The near plane is still changed. You just need to increase the far plane value to compensate the computation error.

Title: Re: clip plane
Post by: steve on June 20, 2012, 01:11:47 pm

I have tried many different settings, but none have really helped.

Where I am seeing the main problem is when using retopo. I build a retopo mesh on top of a reference, when I zoom in, the retopo mesh disappears but leaves the reference mesh visible.

Title: Re: clip plane
Post by: IStonia on June 20, 2012, 05:38:43 pm

When in retopo mode, selected objects are rendered in front of the reference object. There are two way to solve the problem.

  -Move the near clip plane towards the view camera.
  -Reduce the 'Retopo Z offset' value under 'Scene Explorer' > 'Retopo reference' list tab.

Title: Re: clip plane
Post by: steve on June 21, 2012, 06:00:42 pm

Quote from: IStonia on June 20, 2012, 05:38:43 pm

  -Reduce the 'Retopo Z offset' value under 'Scene Explorer' > 'Retopo reference' list tab.

Thanks, that works great.

I should of already seen that option. I must be going blind in my old age.

Regards,

- Steve