Sky panprama 360 ptgui zip#

Sky panprama 360 ptgui zip#

TIFF files support ZIP and LZW compression for smaller file sizes. the top rendered image you see in Photoshop), you cannot interact with the layers in Lightroom. Lightroom 4 and newer can now read 32-bit TIFFs and multiple layers, though it will only see the final top layer and any transparencies to layers underneath (i.e. TIFF files support multiple layers and 8-bits, 16-bits, or 32-bits per color channel. TIFF files don’t appear to have a pixel or resolution limit that I can find, but they do have a 4GB file size limit. Seitz RAW Converter for their Roundshot cameras lists a maximum of 4GB for their DNG files, so the file format is capable of much larger images than Photoshop's own Camera RAW engine. I can't find any specified maximum image size or file size for the DNG format in Adobe's documentation, but Camera RAW will limit you to 512MP anyway. I usually stay with the manufacturer's native RAW format, but Lightroom 6+ can merge panoramas and HDR images into DNG format (sadly, no batching feature yet), preserving the RAW data for easier editing later, such as adjusting white balance. Adobe makes a DNG Converter to convert camera manufacturer-specific RAW formats into DNG format. It supports both lossy and lossless compression and up to 32-bit floating point.

DNGĭNG is Adobe's Digital Negative format for RAW files. Let’s go over a few common file formats and their limitations-keep in mind that a file format might be able to hold a larger image than your program can read.

Sometimes it is confusing to figure out what is a program limitation and what is a file format limitation. Other programs will have their own image size limitations. This is probably a limitation of Camera RAW, the engine underneath Lightroom’s hood. For example: 32,000 x 16,000 is the largest 2:1 equirectangular spherical panorama you can work on in Lightroom and fit under 512 megapixels. Lightroom also has a silly limitation of 512 megapixels for an image regardless of the longest side, which makes things very frustrating for a panoramic photographer. Lightroom is a lot more restrictive at 65,535 pixels along the greatest side. Photoshop internally supports a maximum image size of 300,000 x 300,000 pixels or 90 gigapixels (assuming you have enough RAM!), but very few file types support this insane size. Let’s talk about application limitations first. Photoshop & LightroomĪpplications and file formats both have their own set of limitations when it comes to pixel dimensions and file sizes. I thought I’d share a few things I’ve learned while dealing with such large images that might help other panoramic photographers struggling with poorly documented limitations of various file types and their compatibility between common applications. If you watch the progress of the Align process, you can see that upon completion of the align stage, all source images are flipped by 180 degrees.I’ve been working with some very large 5+ gigapixel panoramas lately.

It seems that the culprit is the Align process (2nd step after loading the images). When loading the 93 or 155 images into PTGui, the program works also fine, but it reverses the image orientation, and the resulting panorama is also 180 degrees rotated. The second stage of the test involved 3-shot HDR (with 2 stops up and down), and 5-shot HDR (also with 2 stops between each exposure set) The projection screen shows a correct panorama and also the final stitched panorama is correct. When loading the 31 images into a new project, PTGui works fine. In this test, we took 31 images for a 360-degree scene:ġ image - straight up / 90 degree up (sky) In my recent test with a large number of source images, I encountered a problem when using PTGui.