error importin .ply coronagaussiansplats

[loredano64]

Hi all,
i am tying to load a .ply file with coronagaussiansplats but it return this message:
“Error in PLY file: Expected ply tag.”

There is a way to solve?

thak you

[romullus]

You can try to open ply file in notepad++ and edit its header. First lines should look something like that

ply
format binary_little_endian 1.0
element vertex 38815

Add ply in the first line if it’s missing and save the file as copy. See if it opens in Corona splat loader.

[loredano64]

thank you romullus for replay,
i have no idea ho to insert the code.
see attachment.
if i copy paste your text i receive this message:
“Error in PLY file: Unexpected property format.”

thanks

[romullus]

Do not insert my code! I only show it as example, each file will have unique header, only the structure should be similar. Do you see human readable lines at the start of the file when you open it in notepad, or is just all machine code?

[loredano64]

i see only machine code, see the screenshot attached in previous post. I think it is in bin code.
I have also the same files.ply in asci code where i can see human code, but in this case i have the error:
“Error in PLY file: Only binary little endian format is supported.”

[romullus]

I see. How did you create, or where did you get that file from? Is there an option for you to re-save it? As an alternative, you can try to drag and drop it to supersplat editor and see if it opens your file. If it will, then export it as ply and it should be good then.

SuperSplat Editor

[loredano64]

the file comes from an external studio that use LixelStudio3 software.
They sent me 2 ply files, one in ascii an one in bin format.
I have also an rcp file tha i can import in max with point cloud object, i can see in viewport the rcp file but corona can’t render it.

Superspl can’t import my ply file because of erro in heater.

below the begin of the 2 ply file.
bin file:

LASF                    

XGRIDS                          LixelStudio3.4 r4 (231020)      
 êaã ã       " Ò	                     -Cëâ6?-Cëâ6?-Cëâ6?                        ú~j¼t9ÀôlV}®<À¼ß(@Qkšwœb"@}?5^ºIô¿Ë2ı..ÀÏÇûÿäh
 #Kÿÿ33      .f·s1_ÚAEEJJ)) Ëûÿùn
 GJÿÿ      ..Äs1_ÚA55008Îûÿƒk
 ‘Pÿÿ      .î£T1_ÚAuumm\\µÃûÿ“w
 #Fÿÿ      .&X1_ÚAIICC++-Áûÿ }
 vDÿÿ      ..Äs1_ÚAOOHH88¡Èûÿwp
 £Wÿÿee      .†V1_ÚAmmXXBBÑÂûÿØm
 ÌHÿÿ00      .Æs1_ÚAAADD&&aÌûÿm
 ßOÿÿ!!      .†V1_ÚA99..gÎûÿk
 ¦Nÿÿ**      .&7V1_ÚAllbbLLÄûÿv
 ¶Eÿÿee      .–ªs1_ÚAGGGG++^Æûÿ s
 Iÿÿ      .¾PU1_ÚA[[TT>>½Åûÿ^t
 Tÿÿ      .î#V1_ÚAeeSS<<ÄÄûÿYu
 <Lÿÿee      .îCV1_ÚAbbTT;;¿Ãûÿëv
 Lÿÿ      .†=V1_ÚAFF;;((ÑÂûÿ3x
 Nÿÿ      .îƒV1_ÚAMMAA--ŠÀûÿî|
 `Pÿÿ      .&7V1_ÚAccRR>>Ðûÿ@j
 ®Wÿÿ%%      .¾°U1_ÚAFF<<**{ËûÿÀn
 ò^ÿÿ      .¾ÐV1_ÚAXXKK99sÁûÿÚz
 3Yÿÿ      .&V1_ÚAAA;;22V¿ûÿÛ
 Þ^ÿÿ&&      .îW1_ÚA‡‡wweeûÃûÿÆm
 Iÿÿ22      .Æ}s1_ÚA??@@$$ÅÇûÿo
 MIÿÿ      .ŽýW1_ÚA4433Âûÿül
 ÖHÿÿ11      .îV1_ÚABBEE((dÀûÿ`m
 IHÿÿ**      .¾0V1_ÚA::@@  ›Çûÿúi
 ÈJÿÿ--      .f—s1_ÚADDGG&&ƒÆûÿÓn
 Iÿÿ''      ..Är1_ÚABBBB**3Ãûÿ¶l
 /Iÿÿ))      .Ž]X1_ÚAFFEE((>Æûÿ(i
 ¿JÿÿDD      .V*V1_ÚADDHH))ŽÃûÿÐh
 2Jÿÿ99      .†ÝU1_ÚADDII**ðÀûÿKj
 CIÿÿ55      .&V1_ÚA66;;eeÄÄûÿi
 pJÿÿ55      .V*V1_ÚAEEEE$$IÆûÿ‡j
 fJÿÿ33      .&7V1_ÚA88::÷ÄûÿÂj
 Jÿÿ))      .Ž]X1_ÚATTTT77ÆÀûÿ i
 ‰Iÿÿ??      .Æ=s1_ÚAHHLL..¿Ãûÿkj
 ãIÿÿ22      .†V1_ÚA??@@  9ÂûÿÕj
 vIÿÿ**      .f·s1_ÚA6699eÂûÿGi
 »Iÿÿ77      .–
s1_ÚA==AA""Èûÿ„l
  Jÿÿ33      .VŠW1_ÚADDFF&&øÅûÿHl
 ÚIÿÿ33      .&—W1_ÚA>>CC##±Äûÿ>l
 žIÿÿ##      .^×r1_ÚAHHJJ++Âûÿo
 Hÿÿ33      .¾V1_ÚA>>AA##EÃûÿñn
 †Hÿÿ..      ..$s1_ÚAAABB%%•Ãûÿžk
 “Iÿÿ++      ..$s1_ÚAWWXX::0ÇûÿÑk
 2Jÿÿ""      .†]T1_ÚACCGG((|ÁûÿHn
 SHÿÿ,,      .fWs1_ÚADDII((FÅûÿLm
 lIÿÿ//      .Æs1_ÚABBCC&&ØÇûÿØm
 ¦Iÿÿ""      ..¤s1_ÚAPPOO00@Áûÿl
 êHÿÿ88      .þs1_ÚAGGLL++lÅûÿp
 qHÿÿ      .&—V1_ÚA<<::´Àûÿ"o
 æGÿÿ%%      .·U1_ÚACCFF''oÃûÿ&p
 #Hÿÿ&&      .&7X1_ÚA==??™Æûÿ’m
 ‰Iÿÿ88      .Æ}s1_ÚASSWW77±Äûÿùn
 ·Hÿÿ%%      .Æ=s1_ÚAGGHH++'ÈûÿDk
 ƒJÿÿ44      .–
s1_ÚAJJMM//VÉûÿÙk
 Jÿÿ((      .¾0V1_ÚAHHKK&&rÉûÿ'm
 2Jÿÿ""      .Ɲs1_ÚAFFGG""Éûÿ	p
 îIÿÿ00      .f7s1_ÚAHHDD..6Éûÿxn
 ÏIÿÿ      .¾ðU1_ÚAEEAA$$ÊûÿMo
 ðJÿÿ      .¾ðU1_ÚALLCC00xÊûÿ)n
 ÈJÿÿ      ..$s1_ÚA44**ËûÿÕl
 «Jÿÿ((      .–Šs1_ÚARRLL//Éûÿ‚i
 8Kÿÿ22      .Æ]s1_ÚAMMOO,,{Ðûÿ¾i
 iRÿÿ		      .V*V1_ÚA[[WWJJÍÉûÿo
 «Qÿÿ      .¾V1_ÚAWWLL77Íûÿek
 OLÿÿ      .†½U1_ÚAAA<<""íÌûÿ\l
 —Qÿÿ      .¾°U1_ÚArrnn``rÉûÿ	p
  Lÿÿ      .&—V1_ÚAee\\IIÍÉûÿùn
 ¢Tÿÿ      .ŽÝV1_ÚArreeMM7ËûÿZn
 Oÿÿ      .&V1_ÚA]]RR99¥Ðûÿ¾i
 BPÿÿ      .†=V1_ÚAnnhh[[XÌûÿBm
 ˆNÿÿ44      .fWs1_ÚAll``JJXÌûÿ`m
 +Mÿÿ%%      .&7V1_ÚAPPFF22ÊûÿÜn
 ­Pÿÿ      .¾0V1_ÚAPPFF//~Îûÿ]j
 Lÿÿ      .þ°s1_ÚAKKHH..ÒûÿÆh
 ÛNÿÿ

ascii file:

ply
format ascii 1.0
element vertex 643592                                                                                                          
property double x
property double y
property double z
property ushort blue
property ushort green
property ushort red
property uchar scalar_Classification
property double scalar_Gps_Time
property ushort scalar_Intensity
end_header
-27.653 9.2388 -4.6302 41 74 69 0 1.76978e+09 51 

[romullus]

That does not looks like gaussian splat file TBH. Here in this article you can read how to identify splat files that’s supported by V-ray and supposedly by Corona too https://support.chaos.com/hc/en-us/articles/40500592119441-Understanding-the-Gaussian-Splat-PLY-formats

I think your best option is to contact the studio that gave you those files and ask them if there’s possibility to export splats in format that is compatible with Chaos products.

[loredano64]

i confirm it is not a gaussian splat file.
The studio con only export: .las, .e57, .ilas.
(.ply binary, .ply ascii the ones I’ve already received.)

Thank you romullus