POVRay Tithonia

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12536

Haven't played with Kevin's POVRay output script-fu in a few months so why not.

Odinbc · **Posted:** Tue Oct 16, 2012 1:35 am **(#2)**

Where is The POV output script?

paynekj · **Posted:** Tue Oct 16, 2012 2:56 am **(#3)**

Odinbc wrote:

Where is The POV output script?

Lylejk started the thread about POVSphere http://www.gimpchat.com/viewtopic.php?f=22&t=4480 but I got carried away with writing a script-fu version, the last version of which is at this post: http://www.gimpchat.com/viewtopic.php?f ... =80#p56902

And lylejk, nice one... hexagons looking good.

Kevin

Odinbc · **Posted:** Tue Oct 16, 2012 8:41 am **(#4)**

Thanks, Kevin.
I'm new to POV, I've only used it with defaults. The presets are good but to master it would take some time.

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12536

I have to say again how much I appreciate Kevin's cool Script-fu. Much better then the original plugin that I found back then (by a long mile). Wish I was more into the 3D apps out there, but I prefer photo manipulation. Just easier for me to do then create stuff from scratch.

AnMal · **Posted:** Tue Oct 16, 2012 1:38 pm **(#6)**

lylejk: your tithonia seems to agree with any treatment you put it through

. i have to try that script-fu, this looks really fun!

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12536

Note that I processed the result in POVRay AnMal, but you can get some good result with the GIMP only part too of the script-fu too, but I usually port the resulting pov file into POVRay then do some additional tweaks with the output in GIMP of course. POVRay is free (can't remember if it is Open Source and too lazy to look that up right now; lol) by the way.

paynekj · **Posted:** Fri Oct 19, 2012 2:19 pm **(#8)**

Lyle, you've got me at it again

I've decided to re-do the script in Python to make it more robust, and along the way I've added a new shape. The script isn't ready yet, but just as a teaser:

Attachment:

289_IMGP9447_from_raw_sml_poved.jpg [ 295.24 KiB | Viewed 2861 times ]

This is the GIMP sample picture (not POV-Ray), 6-point stars, sample layer duplicated and edge-detected with the original picture on the bottom layer.

Original picture is here:

Kevin

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12536

OK Kevin; where's the link? lol

Look forward to seeing the update when you put the final touches. Thanks a heap for your effort again by the way.

PhotoComix · **Joined:** Apr 12, 2010 **Posts:** 5870

paynekj wrote:

Lyle, you've got me at it again

I've decided to re-do the script in Python to make it more robust, and along the way I've added a new shape. The script isn't ready yet, but just as a teaser:

Attachment:

289_IMGP9447_from_raw_sml_poved.jpg

This is the GIMP sample picture (not POV-Ray), 6-point stars, sample layer duplicated and edge-detected with the original picture on the bottom layer.

Original picture is here:

Cool

Kevin

paynekj · **Posted:** Sat Oct 20, 2012 2:35 pm **(#11)**

Bit more teasing:

Attachment:

gimp_test_leaf_sml.jpg [ 150.1 KiB | Viewed 1345 times ]

Results in POV-Ray this time

I've just got to tidy up the code and put lots more comments in so that next time I come to look at it I can understand what I've done :shock:

Kevin

Odinbc · **Posted:** Sat Oct 20, 2012 2:41 pm **(#12)**

I'm looking forward to trying out your script.

paynekj · **Posted:** Sat Oct 20, 2012 3:47 pm **(#13)**

Odinbc wrote:

I'm looking forward to trying out your script.

Ready for trying now: viewtopic.php?f=22&t=4480&p=69885#p69885

Kevin

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Very cool Kevin, keep going :teeth

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12536

OK Kevin; how do you get the angled mapping again with Povray file? Still like this now Python plugin version. Kudos again for your effort with this.

paynekj · **Posted:** Fri Mar 28, 2014 2:01 am **(#16)**

lylejk wrote:

OK Kevin; how do you get the angled mapping again with Povray file? Still like this now Python plugin version. Kudos again for your effort with this.

You change the position of the camera:

Attachment:

MisterA_square.png [ 394.48 KiB | Viewed 1155 times ]

Code: Select all

camera
{
  location  <2, 0.25, -3.5>    // x, y, z position of the camera
  right     4/3*x
  look_at   <2, 0.25,  0.0>    // x, y, z position the camera is pointing at
}

Attachment:

MisterA_oblique.png [ 409.36 KiB | Viewed 1155 times ]

Code: Select all

camera
{
  location  <-0.4, -0.7, -2.0>    // x, y, z position of the camera
  right     4/3*x
  look_at   <1.2, 0.25,  0.0>    // x, y, z position the camera is pointing at
}

By default the script puts the camera to be looking square onto the objects.

Kevin

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12536

Thanks Kevin; not a Povray guy and I only toyed with it a few times but never understood how to map at different positions. Never thought to try some math and the camera location.