When compressing certain textures with ASTC LDR we get corrupted results.
Source image:
Source image (1024x512 lightmap) can also be found attached to post or downloaded here:
https://dl.dropboxusercontent.com/u/7197208/images/lightmap_table-evening.png
When compressed in LDR Linear mode we get corrupted result: top part (2/3rds of image) is clear white and in the bottom source image is repeated 3 times:
When trying to compress image in LDR SRGB we get the following error:
Image is compressed correctly only in HDR mode.
This does not happen with other images, only certain ones (black-and-white lightmaps) are affected by bug.
Tested on Mali Texture Compression Tool versions 4.2.0 and 4.1.0.
Bug prevents us from using compressed ASTC textures in our Android app, its a shame because it provides excellent quality compared to ETC2 full of block artifacts.
Any update? Have you reproduced bug? Is there some known temporary workaround (may be some options for codec, there's a whole bunch of them)?
Hi keaukraine2,
We have notified the Mali Tools team to this.
Hopefully they will get back to you soon.
Thank you for your patience.
Kind Regards,
Michael McGeagh