PSVita GXT PVTRC2 Problems

[luxox18]

Hello! I'm trying to convert some textures from PS vita games, in this case Killzone Mercenary. But I can't obtain properly files.
I can see textures with texture finder as DXT1 or DXT5 formats but all files are swizzling



also, I tried to add some PVR headers (PVRTC), the textures look unswizzled but with bad colors and very pixelated.

maybe someone here have experience with this formats. ( maybe this tool can help. I don't have the necessary requirements to compile the tool https://github.com/xdanieldzd/GXTConvert )

here are some raw samples

http://www.mediafire.com/download/f1m4p ... es_kzv.rar

[Acewell]

I tried to get something out of your samples with an experimental Noesis script i made using the unswizzle part of mikulover39's gxt script posted here
viewtopic.php?f=16&t=14419&p=119216&hilit=gxt#p119216

i gave your samples a gxt extension, the text2_n sample looked good


i couldn't get anything decent from text2_d or text2_s

here is the experimental script if you want to mess around with it

tex_PSVitaX_gxt.zip

[luxox18]

Thanks a lot AceWell for the script will be very useful in the future for other GXT formats.

some days ago I discovered how to convert the textures used GXTconvert + adding the following headers to the RAW GXT data


512x512 UBC1 (similar to BC1 but Swizzled)




512x512 swizzled UBC3 (alpha) (similar to BC3 but Swizzled)

This is result with a UBC1 header



now I have other problem with some GXT textures.
Some files use format PVRTC2 4BPP, GXTconvert doesn't support PVRTC2 formats, so I used pvrtextool for convert the file in a DDS UBC3 texture, then I used GXTconvert with the new file for obtain a unswizzled texture but the result is this:



if someone know what happened here it would be very useful the information.

sample images
http://www.mediafire.com/download/1dost ... amples.rar

[shakotay2]

if someone know what happened here

what's wrong with the texture?
The checker pattern? Maybe it's for marking transparency? (just a wild guess.)

[luxox18]

here are others looks of the problem from other texture files




and here is one DDS file for a better analysis of the issue

http://download1646.mediafire.com/hp9vh ... body_s.dds

and about transparency, the normal texture posted in the previous post have no alpha channel. The dds file above this line have alpha but looks bad too ( I think that when I converted the PVRTC2 texture to DDS-UBC3 and then to normal DDS there are loss of information in the file)

[Gh0stBlade]

Looks like either wrong DDS format or an issue with the unswizzling.

[o0DemonBoy0o]

Adding a pvr header to the image then using this script to reorder to linear seems to work fine. Just make sure
ENABLE_PVR_REORDERING_TOOL = True
http://himeworks.com/redirect.php?type= ... =pvrtc_pvr

[luxox18]

Thanks o0DemonBoy0o, this script is very useful

[Acewell]

http://himeworks.com/redirect.php?type= ... =pvrtc_pvr

thats the same script that comes with the Noesis installation

[luxox18]

http://himeworks.com/redirect.php?type= ... =pvrtc_pvr

thats the same script that comes with the Noesis installation

haha, many times the solutions are just around the corner, the problem is to know which corner. That's why is important the knowledge

[Acewell]

this is the pvr script from finale00's old Dropbox repository

tex_powerVR_pvr.zip

he must have got them mixed up when he was rebuilding
the repository on his himeworks.com website