Faulty display of images and videos with alpha channel transparency (distorted, black and white, milky or not transparent) may be due to the following reasons:
The images have more than just one alpha channel or a color depth of 16 bits per channel.
Solution: Solution: Open the image file and take the steps described below. Use the method as explained in topic External editing of media files, so that the image display data are updated automatically.
Remove any superfluous alpha channels in the file until there is only one alpha channel. Transparency on the image layer (with the checkered background being visible) is regarded as first alpha channel and no further alpha channel must be present in the channels palette.
Check the image color depth and, if applicable, reduce it to 8 bits per channel.
The alpha channel was premultiplied for usage with white or black background. Wings Vioso RX has an automatic system that should detect and correct this, but there may be cases when this does not lead to the desired result.
Solutions:
Switch off the automatic system and try out the various modes for premultiplication. See Picture Properties.
Tips: We have been most successful with TIF files. If the transparency is stored in the image (in Photoshop the checkered background is visible) you need to be very careful when it comes to saving and enable the TIFF option Save transparency. For saving ZIP compression is the most effective.