Noesis tutorial Basic Model

[Seyren]

I know this may sound dumb but i got lost in the very first steps.

I just did this:

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#Noesis Python model import+export test module, imports/exports some data from/to a made-up format

from inc_noesis import *

import noesis

#rapi methods should only be used during handler callbacks
import rapi

#registerNoesisTypes is called by Noesis to allow the script to register formats.
#Do not implement this function in script files unless you want them to be dedicated format modules!
def registerNoesisTypes():
	handle = noesis.register("S4 League", ".scn")
	noesis.setHandlerTypeCheck(handle, noepyCheckType)
	noesis.setHandlerLoadModel(handle, noepyLoadModel) #see also noepyLoadModelRPG
	#noesis.setHandlerWriteModel(handle, noepyWriteModel)
	#noesis.setHandlerWriteAnim(handle, noepyWriteAnim)

	noesis.logPopup()
	print("The log can be useful for catching debug prints from preview loads.\nBut don't leave it on when you release your script, or it will probably annoy people.")
	return 1


#check if it's this type based on the data
def noepyCheckType(data):
	bs = NoeBitStream(data)
	if bs.readInt() != 0x01000000 :
		return 0
	return 1

#load the model
def noepyLoadModel(data, mdlList):
	ctx = rapi.rpgCreateContext()
	bs = NoeBitStream(data)
	rapi.rpgClearBufferBinds()
	hdrInfo = bs.read("i")
	print(hdrInfo)	
	return 1

Not a big deal, just trying to read an int and in the guide it said it was going to be written in the output log, but only this shows up:



I think it has something to do with the header reading, but i don't know what to do.

I'm not sure if this is supposed to happen, since the images from the tutorial are missing and i'm not sure if i should continue or not.

I know this is one of those mistakes that will make you be ashamed for life, but i don't know what is wrong, i'm sorry

File i'm trying to read is attached in the post

[shakotay2]

use this line:
if bs.readInt() != 0x00000001 :

because the signature 01 00 00 00 in the header is little endian.

[Seyren]

Thank you for your help shakotay2, once again you got me out of this nooby issues

I got another question, how does the Vertex Buff actually works? Since in the guide they use the following:

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VertBuff = bs.readBytes(VCount[0] * 0x58)
   rapi.rpgBindPositionBufferOfs(VertBuff, noesis.RPGEODATA_FLOAT, 88, 0)
   rapi.rpgCommitTriangles(None, noesis.RPGEODATA_USHORT, VCount[0], noesis.RPGEO_POINTS, 1)
   mdl = rapi.rpgConstructModel()
   mdlList.append(mdl)         #important, don't forget to put your loaded model in the mdlList

I don't really know what a vertex with a size of 88 bytes meant, so i started trying random numbers until one worked, which was 24.


Using sword.scn
(Vertex count: 0x0986, after that there are 345 floats and the int that tells you the faces, which is positioned at 0x19B6, in this case are 282 faces)


the bad thing for this is that the number of the vertices, faces, uvs, etc are between the buffers, so the only way to be able to continue to get the number of faces is by using 0x04 instead of 0x18

So my question is, since the coordinates are made by floats,and since floats are 4 bytes, should i use 4 or should i use 24 and go back to the position of the faces count?, because if i do the last thing i said using FaceBuff = bs.readBytes(FCount[0] * 2) the following result appears:



Thanks in advance again ^^

[shakotay2]

didn't get exactly what you mean.
use this for sword.scn (and only sword.scn):

Code: Select all

#Noesis Python model import+export test module, imports/exports some data from/to a made-up format

from inc_noesis import *

import noesis

#rapi methods should only be used during handler callbacks
import rapi

#registerNoesisTypes is called by Noesis to allow the script to register formats.
#Do not implement this function in script files unless you want them to be dedicated format modules!
def registerNoesisTypes():
   handle = noesis.register("S4 League", ".scn")
   noesis.setHandlerTypeCheck(handle, noepyCheckType)
   noesis.setHandlerLoadModel(handle, noepyLoadModel) #see also noepyLoadModelRPG
   #noesis.setHandlerWriteModel(handle, noepyWriteModel)
   #noesis.setHandlerWriteAnim(handle, noepyWriteAnim)

   noesis.logPopup()
   print("The log can be useful for catching debug prints from preview loads.\nBut don't leave it on when you release your script, or it will probably annoy people.")
   return 1


#check if it's this type based on the data
def noepyCheckType(data):
   bs = NoeBitStream(data)
   if bs.readInt() != 0x00000001 :
      return 0
   return 1


#load the model
def noepyLoadModel(data, mdlList):
   ctx = rapi.rpgCreateContext()
   bs = NoeBitStream(data)
   rapi.rpgClearBufferBinds()
   hdrInfo = bs.read("i")
   print(hdrInfo)   
   # works for sword.scn only!
   bs.seek(0x982, NOESEEK_ABS)  #Seek to counts
   facesCount = bs.read("i")	# faces count
   vertsCount = bs.read("i")
   VertBuff = bs.readBytes(vertsCount[0] * 12)
   facesCount2 = bs.read("i")	# faces count again
   print(facesCount2)
   if facesCount2!=facesCount:
      print("error: 2nd facesCount doesn't match!")
      return 1
   idxBuff = bs.readBytes(facesCount[0] *2 *3)
   rapi.rpgBindPositionBufferOfs(VertBuff, noesis.RPGEODATA_FLOAT, 12, 0)
   #rapi.rpgCommitTriangles(None, noesis.RPGEODATA_USHORT, facesCount[0], noesis.RPGEO_POINTS, 1)
   rapi.rpgCommitTriangles(idxBuff, noesis.RPGEODATA_USHORT, facesCount[0]*3, noesis.RPGEO_TRIANGLE, 1)
   mdl = rapi.rpgConstructModel()
   mdlList.append(mdl)          #important, don't forget to put your loaded model in the mdlList

   return 1

it's just a quick hack - I'm not familiar with Noesis.

(Maybe it's a good idea to edit further questions into your previous post?
So not to spam chrrox' tutorial.)

[finale00]

You should bump chrrox's tutorial as much as you can.

[clang7775]

Thanks for the tutorial! Time to dust off my python skills (and indenting!)

[deltaone]

anyone have images for this this tutorial ?

thx ...

[MarieRose1301]

Hello. i just began writing a script for a game and i think i got the wrong header because i get this error:


http://sta.sh/21xrx3h6mxxn?edit=1 - these are the model and the script,anyone able to tell me what's wrong and how to fix it?

[chrrox]

the string you are showing is not ascii and its not 16 bytes long.
try something like

NOEPY_HEADER = 0x334D430A

#check if it's this type based on the data
def noepyCheckType(data):
bs = NoeBitStream(data)
if len(data) < 4:
return 0
if bs.readUInt() != NOEPY_HEADER:
return 0

[MarieRose1301]

It gives me an other error this time
It's my first time writing a noesis plugin, so I'm a little bit lost here, sorry

[chrrox]

Here is a start for you.

[MarieRose1301]

Thank you so much, i hope there won't be any more problems ^^'

[Acewell]

There are several ways to go to different positions of a file (eg: seeking)

They are typically seeking from
-beginning of the file (absolute offset) eg: seek_abs
-current position (relative offset) eg: seek_curr
-end of file (seeking backwards)

So what is the correct syntax in Noesis for seeking to an offset from the end of a file?
i have been trying something like bs.seek(-44, 2) without success.

[shakotay2]

"2" is ony valid when using import os, I guess - since there's
NOESEEK_ABS = 0 and NOESEEK_REL = 1 only.

I tried such (import os required)

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   fileName= 'G:\test.txt'

   statinfo = os.stat(fileName)
   print("statinfo, file size: ", statinfo.st_size)
   fsize= statinfo.st_size
   with open(fileName, "rb") as f:
       #f.seek(fsize-11, os.SEEK_SET)
       f.seek(-11, 2)
       a= f.read()
       print("a: ", a)

where test.txt is an ASCII file, opened in binary mode (to avoid weird outputs from print())
Both f.seek lines worked - if you use f.seek(-11, 2) you don't need to get the file size!

But I dunno how to get the filename via rapi, when the file is opened in the Noesis file explorer -

bs = NoeBitStream(data)
bs.seek(-11, 2) didn't work.

[Acewell]

Okay thanks, i hoped there was something simple i was overlooking like NOESEEK_END i could use. i don't know enough about programming to make work what you have there. i will have to find another way

editx2
okay this works

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    bs.seek(len(data) - 0x2C, NOESEEK_ABS) #goto 44 bytes from end of file