Imagination PowerVR SDK Blog

PVRTexLib transcoding results in artifacts in texture.

pvrtextool

#1

Hi guys!



I have an issue where transcoding an texture using pvrtexture::Transcode and saving it out with the premultiplied header flag enabled. I get a column of pixels, 8 pixels high, at the edge of the texture. I’ve attached a screenshot of it in the PVRTexTool.







I am transcoding it to the pvrtc_4bpp_rgba format and the artefacts only show when I am using high or best quality. (Does not happen in normal quality).



I am using:

PVR SDK 3.3, revision 2.



Appreciate any insight into this. Thanks!



Julezz


#2

Hi Julezz,



The PVRTexTool lead is out of the office this week. He should be able to discuss the issue with you once he returns.



If you create a bug report and attach the input image to it, it should help speed up our investigation (and it gives visibility of progress to other developers).



Thanks,

Joe