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Known Issues

Unfortunately there are some flashplayer issues / bugs, read here for more details:

Black screen or red screen with images larger than ~8000 pixels in width or height

When only a black or red screen appears then the image was too large for the Flash Player.
This is a new (still undocumented) Flash Player issue (since version 9.0.115):
Images larger than ~8000 pixels in width or height are not decoded properly!
Internally the Flash Player just returns a single colored image (in most cases with black or red color), and there is no error message to the application (the viewer).

Here is a example for this issue:

An image with size 9000x4500 - see it here - image9000x4500.jpg
(NOTE - this image is heavily compressed to reduce download time, 222kb)

This image as panorama - Panorama with image9000x4500.jpg
(NOTE - to show something anyway the "showpolys" flag is enabled!)

If you have an older Flash Player (e.g. Version 9.0.48) you will see the image correctly.

Solutions for this problem:

  • Reduce the imagesize to be under 8000 pixels
  • If the image is a spherical panorama image - convert it into a cubical (e.g. with the ktransform tool), then size of the single cube images would be less than 8000 pixels
  • Use the tile or multiresolution feature of krpano (recommended solution)
    e.g. use the kmaketiles or kmakemultires tools to split the large image into small image tiles, then the imagesize shouldn't be a problem anymore!