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Example/Tutorial - Extract a Distorted Hotspot from any kind of Pano Image (with perfect pixel alignment)

pano_ramic

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121

Saturday, January 18th 2020, 5:52pm

distored video hotspot positioning issue?

Hi guys,

sorry for digging out this old thread, but I have some issues positioning a distorted video hotspot onto the pano image. I quadruple checked the values coming out from ptgui ... the distorted (video) hotspot is just off. not just by a single pixel or so, its quiet "a bit". see screenshot below.

I'm using krpano 1.20.2 and ptgui 11.13 - is this "old" action still valid or did something change at krpano/ptgui so there's a missmatch now?


Any help on this would be great, as the client waits for his panos ;-)
SOLVED: I've overseen the vertical compression in ptgui. everyting's fine.





This post has been edited 1 times, last edit by "pano_ramic" (Jan 19th 2020, 1:25pm)

agu.qwerty

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122

Monday, May 25th 2020, 1:04pm

Hi,

I have a problem (well i have a lot of problems with this one but i want to solve it one at the time). My hotspot picture is bigger that the place it's on. I tried to make hotspot jpg smaller but it "stretches" on the panorama.

Thanks for any help!

igor.socha

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123

Friday, June 5th 2020, 10:45am

Quoted from "pano_ramic"

SOLVED: I've overseen the vertical compression in ptgui. everyting's fine.
I have the same problem, tried Ptgui 12 and old 10, all the numbers are rounded, still the hotspot is misaligned.
Vertical and horizontal compression setting should be 0.0. OK, but where do i find it??? *confused*
Best regards,
Igor Socha

Tuur

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Occupation: Krpano custom coding / Virtual Tours / Photography / Musician / Recording engineer

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124

Friday, June 5th 2020, 11:56am

Hi,

panorama editor --> right top little arrow --> projection

by selecting the numbers you get the full, not rounded number,.
make sure you are in 'rectangular' mode!

Hope it helps!
Tuur *thumbsup*
https://www.virtualtuur.com
Panimator: https://krpano.com/plugins/userplugins/panimator/#top
ToolBox: https://bit.ly/3TTnd6U
Measure in 360 photos : https://pame.virtualtuur.com
Moving Hotspots V2: https://krpano.com/plugins/userplugins/movinghotspots/#top
Donations
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This post has been edited 4 times, last edit by "Tuur" (Jun 5th 2020, 12:26pm)

Viktor123

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125

Wednesday, September 16th 2020, 12:23pm

Thanks! I think this i really helpful!

Greetings

milotimbol

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126

Friday, January 14th 2022, 3:07am

What adjustments do I need to make to action "calc_pos_from_hfov_yaw_pitch_roll" if my panorama is using a depthmap? can't seem to align using the default code.
Krpano YouTube Tutorials
exsight360.com

milotimbol

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127

Friday, January 14th 2022, 3:44am

Answering my own question for posterity. Found the answer here - https://krpano.com/forum/wbb/index.php?p…&threadID=17570

if your image has a prealign, ox, oy, oz values

Source code

 
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		<image prealign="-0.0|-56.72|0.0" ox="-38.33" oy="-46.13" oz="17.8" >
			<cube url="panos/03.tiles/%s/l%l/%v/l%l_%s_%v_%h.jpg" multires="512,640,1280,2688" />

			<depthmap url="panos/03.tiles/depthmap.stl"
				enabled="true"
				rendermode="3dmodel"
				background="none"
				scale="100"
				offset="0.0"
				subdiv=""/>				
		</image>


You need to carry those values to the hotspot as tx, ty, tz and also add prealign="true"

Source code

 
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	    <hotspot name="left-device" distorted="true" enabled="true" visible="true" alpha="1"
	              url="img/03-right-device.jpg"
	              onloaded="calc_pos_from_hfov_yaw_pitch_roll(11,-109,0,-42);"
prealign="true" tx="-38.33" ty="-46.13" tz="17.8"
	              />
Krpano YouTube Tutorials
exsight360.com

superhoha

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128

Thursday, June 22nd 2023, 6:10am

Problem with pixelated edge rendered from HUGIN

Hi. I know this has been so long ago but now I am trying to do some test with this for changing the materials of the tour.

Please see here
https://apartment.immexg.com/media/vtour/index.html

I have been able todo what I want, but the problem is that when rendered from HUGIN the edge looks very pixelated. I have not been able to make it crisp even with higher resolution. My work around right now is just go into photoshop and increase the the feather of the edge so that it won't be as jarring. But I would want to know is there anyway to render our a crisp edge image from HUGIN since my source has been rendered out nicely (as a layered 360).

Since I have so many layers that is on top of each other, I need PNG as output. so JPG is out of the question.
I am fine with it being a bit larger but pixelated is still a big issue for me.

My workflow is to follow the original tutorial by Klaus. Render out a bunch of options in equirectangular and then modified them in HUGIN to export as Rectilinear. Is there a better way of exporting or retaining it as equirectangular?

Thank you!
superhoha has attached the following images:
  • 1.jpg
  • 2.jpg

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