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I want to create more VR projects and I am trying to find out the best way to create the images for Captivate VR projects. What projection is best: Cylindrical, circular fisheye? What cameras work best: GoPro Max, Ricoh, others? What is the best stitching software for 360 photos? Does anyone have experience with PTGui (www.ptgui.com) for stitching photos together for Captivate VR projects? I am hoping that someone has discussed this, but I have not found a good thread yet.
Interesting subject, and, although I can't give a satisfactory advise, I'm responding to you because I'm intrigued by trying out VR projects in Captivate myself. And this way I get this onto My Follows list and when I know more I'll come back and tell you about my research in this field.
I am thinking of using my LinkedIn account to get in contact with pros or semi-pros who are practicing VR respectively omnidirectional photography. To initiate some form of collaboration.
Maybe this page on Wikipedia on VR Photography gives you a first entry point. I found it quite helpful to learn that when you want to stitch a number of photos to a 360 panorama that you should mount a camera (any camera really) in portrait position on a tripod and rotate the camera and make an image every 30 degrees.
I can't tell you anything about PTGui stitching software but it certainly looks promising. BAFAIK Photoshop offers a stitching routine as well. I'll try that very soon.
I did learn that PTGui works quite well for creating 360 images for use in Adobe Captivate. You can use a DSLR, a GoPro, or whatever camera you want. A tripod is a necessity. Their website provides a good video on eliminating parallax which can make the stitching not very clean. However, I tried it with a Hero8 Black camera. Because the camera is so narrow, the parallax center point was pretty much where the camera mounted on the tripod. I shot 16 images overlapping at least 30% for each image. It took about a minute. I then added the images to PTGui. It figured out the correct order for the images and stitched them perfectly. As PTGui can output several different panoramic projections, I selected 360x180 2:1 equirectangular images. The program merged stitched and projected the single image, saving it as a JPEG. I was impressed by how fast it processed the images. The result was an image that could be directly added to a Captivate VR project, ready for hotspots and other elements. The learning curve was low for getting started, but there are lots of more advanced features. Nice piece of software, great support, reasonably priced, and a great add-on for Captivate for creating VR projects.
I took the images indoors in my study. Yes, there were chairs that were closer to the camera and items on the walls or in the next room that were farther from the camera. The resulting 360 image is 12,614 x 6307 pixels, at 10.4 megabytes on disk. Photoshop reports "Pixel Dimensions" as 227.6M. Actually, since I was using a GoPro and had watched the video on the PTGui website on parallax calibration, I just had the GoPro Hero8 set at "Superphoto" and shot away. Even with windows on one side of the room, there was uniform brightness in the resulting image.
Rather than post a picture of my study, let me share an outdoor picture that one of the tech support reps sent to me so that I could test a resulting image in Captivate prior to purchase. The image that is attached should be the same dimensions. However, I saved the image at a JPEG picture quality of 8 which makes the file size small enough to post. I don't know if the forum posting mechanism will downsample the file or not. Hopefully it will give you something to try. I believe this is from the Netherlands, which is where New House Internet Services, the makers of PTGui, are located.
Like you, I have been creating panos for a while now using equirectangular as the final format and stitching with PtGUI. In the last few days, I started to explore Adobe Animate for publishing these panos in HTML. I ran into an issue where the pano size is too big for Adobe Animate which would cut off a good portion on one end. and ruin continuity of the pano I have yet to determine if it is the size of the file or the dimensions of the pano. For example, the original is 9616 x 4808, and the cutoff exists. I resized to 2400 x 1200 and the cutoff did not appear but the quality was reduced significantly. I need more testing to find the optimal size.
Regarding equipment, I am using a Nikon D5100 DX with an 8mm Sigma Fisheye mounted on a pano ninja pano head.
I just realized I had not replied to Klaus - my apologies, so I will respond to you both. PTGui seems to be a very capable product, but it turned out to be so much simpler to just purchase a GoPro Max camera that will shoot a great 360-degree pano in one shot. Images work perfectly in Adobe Captivate. This solution has allowed me to focus on virtual reality content and not get so bogged down in the details of assembling the pano images, which had been frustrating me. I still have my PTGui license, but have not used the product since getting my GoPro Max. I hope this is helpful.
PTGui belongs to the category of in-depth panorama stitching programs that offer a huge library of features, complex projections (the way your set of images are actually mapped), and powerful tools for adjusting how those images are blended. To get a sense of how much more control is offered, consider these two screenshots comparing the controls offered by Lightroom when stitching and one of the dozens of screens you can access when working in PTGui.
The overall interface is very clean, with a contemporary dark theme. The layout is customizable, to an extent, with the primary interface really being two windows, with one controlling project settings and the second being a resizable viewport for seeing the panorama and making adjustments directly on it.
I typically will finish my panoramas in Photoshop, so I love the PSB option. As a bonus, PTGui can output the individual frames as layers atop the finished panorama, letting you easily blend in singular elements or touch up any problem areas.
A very nice article about a very interesting subject! Thanks! Probably a definite must for the pro-photographer! I myself am just an interested amateur and a little spoilt by the ease of taking (many) digital pictures and then not going through with them but instead they just take up space on my harddrive ...
To at least stitch the panoramas together and get a quick look at them, with a minimum of job, I have used Microsoft ICE (free) for a few years now and think it is doing a decent job! Just drag and drop the pictures onto ICE - then it is fully automatic and it even has a autocomplete feature to fill in missing parts along the edges. I certainly prefer to use it over the Photoshop alternative - it is quicker and easier to use!
It is probably not anything a pro would use but if it has a relatively straight series of pictures it will do a quite ok job. "Easy" pictures like nature and landscapes turn out really good but indoor scenes with sharp edges pose a bigger problem. Lots of projections to use and zoomable preview to look for any misses before you actually commit to a stitch. Even if it usually manages to align the pictures it is pity there is no way to help the software find the control points if it fails. Autocomplete is good to use to get a "preview" how it would look if you put in a while editing it in Affinity Photo or Photoshop - but not always something you would keep! No limit to the size (according to MS) and you can set up structured panoramas of amazing number of pictures.
I used to use ICE - it was amazingly good. The problem was that Microsoft stopped supporting or distributing it. Eventually I had to get a new computer, and found I could no longer install ICE - or maybe it just wouldn't run, I don't remember. PTGui has more flexibility and the ability to fine tune the matchups - although as this writer points out that's seldom necessary.
Thanks Sven! Yeah, as I tried to point out, more advanced tools really make a difference when your image set is suboptimal - parallax, subject movement, etc. If ICE is working good for you, that's great!
What I find an underrated quality of this (or potentially other?) panorama editors is reprojecting single fish-eye or ultra wide shots. Of course there are others, dxo viewpoint seemed a nice one but isn't quite as capable.
I tried a few panorama editors but ptgui has been my long time favorite.
I've made hundreds of panoramas, gigapixel images and other composites in PTGUI, it really is the powerhouse that could. I have found nothing that I can't piece together with that program and as importantly, that I can project in thousands of varying views. I've sold many wall sized pieces of gigapixle art made in that program. 10/10 stars!
Dang. Should have bought it back when it was $100 a few years ago haha. Still probably worth it for anyone shooting panos. I've played with it before and it was phenomenal. The ability to click and drag your projection in real time is irreplacable. Every free alternative I've tried (Hugin, etc.) has come away lacking.
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