Equirectangular to Dome seam line issues

[forrest brennan]

Hey Andrew- came across a bug when converting a monoscopic 360 video to a 220 dome format.  The same bug also happens in the 180 version of the node.

I'm getting a seam line where the 360 image connects on the top part of the dome projection.  I have two screen shots here- one of the seam line and another of my node layout.  The Panomap node is not creating the seam line.  I also found this issue applied to footage from a stereoscopic camera I converted to mono.

I tried making incremental changes in the LatLongReposition2 node but was unable to make that back seam seam-less.  The Input Height also did not make a difference.

I applied the VR Convertor in After Effects and there is no seam.

The footage is 7680x3840 Insta360 X4 being converted to a 5760x5760 image.  The timeline is set to 5760x5760.

Any ideas?  Appreciate all you do!

[Andrew Hazelden]

Hi Forrest,

Thanks for your message. That macro node is basically depreciated for anyone who uses Resolve/Fusion v15 - 20.2+ and is only still available for serving the needs of no-budget indie artists rocking out Fusion Free v9.0.2, or for people who want some example macros to expand the group node on so they can tear it apart to see how things can be done. The macro is from the Reactor "Legacy/Tools/VR" category where the atom package is directly labelled:  "The KartaVR legacy Conversion nodes allow you to remap panoramic imagery. These nodes are mainly relevant for Fusion (Free) v9 and Fusion Studio v9 users. The newer Kartaverse DCTL fuses offer updated, GPU accelerated alternatives to many of these macros."

FWIW, I'm currently working on new Apple ILPD style lens space "stitchless" metadata tools. My first port of call is to reverse engineer and build open-source lens profiling tools that will hopefully allow end users to achieve the same workflow elegance that BMD and Apple have provided for BMD Ursa Cine Immersive Camera users, but to do this for any other fisheye lens equipped immersive camera rig. Matt Celia and Hugh Hou have been a big help sharing sample media to enable my R&D work.

The native PanoMap node in Resolve/Fusion v20.2 has a new "Immersive" image projection option that allows conversions to/from fisheye imagery such as media from the BMD Ursa Cine Immersive Camera. Here is an example on GitHub that shows how the Immersive control in the PanoMap node can be used to generate an STMap warping template.

For some needs, the Kartaverse Panotools data nodes are pretty handy if you want to create an optimized conversion workflow that creates a custom STMap template image for the image projection transform you are after. The output can then be applied directly to your media on the Resolve Edit page with the STMapperInline or SuperSTMap effects templates.

Regards,

Andrew