Itoo Software Forum

Author Topic: Trees stop at slopes  (Read 201 times)

Crayox

  • Jr. Member
  • **
  • Posts: 55
Trees stop at slopes
« on: April 04, 2022, 03:19:09 PM »
Hi guys,
any ideas why Forest isn't distributing my trees at these slight slopes? I'm not using any slope or height thresholds or anything like that. I only use 2 surfaces and a spline to include where the trees go. I'll post a MAX file but maybe it's obvious to someone what is wrong just from the screen cap :)
Thx

Paul Roberts

  • iToo Software
  • Hero Member
  • *****
  • Posts: 2457
Re: Trees stop at slopes
« Reply #1 on: April 04, 2022, 03:21:21 PM »
HI,

Have you told Forest Pack to update the Surface since modelling the slopes? There's an autoupdate option in the Surface rollout too. This still catches me out sometimes.

Paul
Paul Roberts
iToo Software

Crayox

  • Jr. Member
  • **
  • Posts: 55
Re: Trees stop at slopes
« Reply #2 on: April 04, 2022, 03:25:46 PM »
Yeah, tried refresh but everything was modeled before I added FP.

Paul Roberts

  • iToo Software
  • Hero Member
  • *****
  • Posts: 2457
Re: Trees stop at slopes
« Reply #3 on: April 04, 2022, 03:28:44 PM »
Is there any chance the normals are flipped for that section? It's probably easiest if you upload the problematic surface so we can take a closer look.

Best,
Paul
Paul Roberts
iToo Software

Crayox

  • Jr. Member
  • **
  • Posts: 55
Re: Trees stop at slopes
« Reply #4 on: April 04, 2022, 03:40:50 PM »

Paul Roberts

  • iToo Software
  • Hero Member
  • *****
  • Posts: 2457
Re: Trees stop at slopes
« Reply #5 on: April 04, 2022, 04:01:31 PM »
PLease reset the XForm for the surfaces, that would appear to fix it. In XY Mode, Forest Pack expects the Z-axis of the surface object to align with the FP object's local Z axis.

Cheers,

Paul
Paul Roberts
iToo Software

Crayox

  • Jr. Member
  • **
  • Posts: 55
Re: Trees stop at slopes
« Reply #6 on: April 04, 2022, 04:57:18 PM »
Aaah shit...I think I had a similar issue already and asked about it before and forgot about the XForm! Sorry, thanks!!! Now you know, when someone has a stupid issue like that just say reset the XForm :)

Paul Roberts

  • iToo Software
  • Hero Member
  • *****
  • Posts: 2457
Re: Trees stop at slopes
« Reply #7 on: April 04, 2022, 04:58:44 PM »
Normally the first thing I think of. I blame the fact that it's Monday.
Paul Roberts
iToo Software