Loading external scene / no materials problem

Helper

On 02/11/2014 at 10:13, xxxxxxxx wrote:

the texture tags on the loaded object have a question mark on them - if thats helpful info..

Helper

On 02/11/2014 at 10:30, xxxxxxxx wrote:

Hi Glenn,

it seems to me, that you forgot to assign the materials to the corresponding texture tags:

obj = your highpoly object
mat = the corresponding material

  
  TexTag=obj.GetTag(c4d.Ttexture)  
  TexTag[c4d.TEXTURETAG_MATERIAL] = mat

Best wishes
Martin

Helper

On 02/11/2014 at 10:49, xxxxxxxx wrote:

Hi Martin,
Still having trouble - this is a script I'm running on a simple file with a single cube with 1 material on it.
It loads the cube - but still the texture tag with question mark.

def main() :
path = "/Applications/MAXON/box.c4d"

fO = LoadDocument(path, c4d.SCENEFILTER_OBJECTS)
fM = LoadDocument(path, c4d.SCENEFILTER_MATERIALS)

#Find the specific object in the file
obj = fO.SearchObject("Cube")

mats = fM.GetMaterials()
mat = mats[0]

TexTag=obj.GetTag(c4d.Ttexture)
TexTag[c4d.TEXTURETAG_MATERIAL] = mat

#Make a copy of it in memory
clone = obj.GetClone()
doc.InsertObject(clone, None, None)
c4d.EventAdd()

if __name__=='__main__':
main()

Helper

On 02/11/2014 at 10:55, xxxxxxxx wrote:

here's the scene file if it helps
https://drive.google.com/file/d/0B_WlfEtsbLpJQkFOUWIzellDUUU/view?usp=sharing

Helper

On 02/11/2014 at 11:07, xxxxxxxx wrote:

you need to insert the material, too and relink it to the object after insertion, like:

  
import c4d  
  
  
def main() :  
  path = "/Users/monkeytack/Desktop/box/box.c4d"  
    
  fO = c4d.documents.LoadDocument(path, c4d.SCENEFILTER_OBJECTS)  
  fM = c4d.documents.LoadDocument(path, c4d.SCENEFILTER_MATERIALS)  
    
  #Find the specific object in the file  
  obj = fO.SearchObject("Cube")  
    
  mats = fM.GetMaterials()  
  mat = mats[0]  
    
  
  
  #Make a copy of it in memory  
  clone = obj.GetClone()    
  doc.InsertObject(clone, None, None)  
  doc.InsertMaterial(mat, checknames=True)  
    
  TexTag=clone.GetTag(c4d.Ttexture)  
  TexTag[c4d.TEXTURETAG_MATERIAL] = mat  
    
  c4d.EventAdd()  
  
if __name__=='__main__':  
  main()

cheers,
Martin

Helper

On 02/11/2014 at 11:21, xxxxxxxx wrote:

Hurahhh! Thank you!

Helper

On 02/11/2014 at 13:40, xxxxxxxx wrote:

ohhh there's always something else,

in my actual scene - there's hundreds of objects, differently coloured using several materials. It seems when I load in the objects - they don't know which material was originally assigned to the texture tag. It's just empty. I could manually somehow write a function to fix all this and match them up again - but seems a lot of uncessary work. I thought loading a scene would keep all the material and texture data intact.

Helper

On 02/11/2014 at 13:54, xxxxxxxx wrote:

i'm thinking - because it does load in the name of the texture tag name string - i could use this when creating and saving the scene to store the material name it belongs to - then write a function when loading which could search the scene materials and match each object up this way.

Helper

On 02/11/2014 at 14:24, xxxxxxxx wrote:

yeah that worked

Helper

On 03/11/2014 at 08:39, xxxxxxxx wrote:

Hi Glenn,

a much simpler approach:
concatenate your material and object flags inside the load document function.
ask the object for it´s tag assignment and insert the corresponding material.
Be sure to ask the original object not the cloned one.

  
  
import c4d  
  
  
def main() :  
  path = "/Users/monkeytack/Desktop/box/box.c4d"  
    
  fO = c4d.documents.LoadDocument(path, c4d.SCENEFILTER_OBJECTS|c4d.SCENEFILTER_MATERIALS)  
  
  obj = fO.SearchObject("Cube.1")  
    
  
  TexTag=obj.GetTag(c4d.Ttexture)  
  mat= TexTag[c4d.TEXTURETAG_MATERIAL]  
  
    
  clone = obj.GetClone()  
  doc.InsertObject(clone, None, None)  
  doc.InsertMaterial(mat, checknames=True)  
  
  c4d.EventAdd()  
  
if __name__=='__main__':  
  main()

Best wishes
Martin

Helper

On 03/11/2014 at 09:14, xxxxxxxx wrote:

Thanks Martin, that's a bit more elegant..

Helper

On 03/11/2014 at 13:44, xxxxxxxx wrote:

it's nearly working... I need to iterate through the list of objects - it seems to just manage as far as the number count of the materials - so if I have a hundred objects and 3 materials - it will only assign up to 3 objects..

fO = c4d.documents.LoadDocument(path, c4d.SCENEFILTER_OBJECTS|c4d.SCENEFILTER_MATERIALS)

olist = fO.SearchObject("Vecfield Final").GetChildren()

for obj in olist:

TexTag=obj.GetTag(c4d.Ttexture)

mat = TexTag[c4d.TEXTURETAG_MATERIAL]

clone = obj.GetClone()
doc.InsertObject(clone, None, None)
doc.InsertMaterial(mat, checknames=True)

Helper

On 03/11/2014 at 15:37, xxxxxxxx wrote:

I see the problem now.
If you insert the material with only one linked object it remains in this status.

A maybe not that elegant but working solution is this:
store all connections in a list and assign it after insertion.

If someone has a better idea I´ll be interested.

  
import c4d  
  
  
def main() :  
    
  path = "/Users/monkeytack/Desktop/box/box.c4d"  
    
  fO = c4d.documents.LoadDocument(path, c4d.SCENEFILTER_OBJECTS|c4d.SCENEFILTER_MATERIALS)  
  olist = fO.SearchObject("Vectorfield").GetChildren()  
    
  #set up an assignment list to associate the object with the material  
  AssList=[]  
  for obj in olist:  
  
      TexTag=obj.GetTag(c4d.Ttexture)  
      mat= TexTag[c4d.TEXTURETAG_MATERIAL]  
      AssList.append([obj,mat])  
    
  #insert all materials  
  mats=fO.GetMaterials()  
  for mat in mats:  
  
      doc.InsertMaterial(mat, checknames=False)  
  
  
  #insert all objects and assign the corresponding material  
  for om in AssList:  
  
      clone = om[0].GetClone()  
      doc.InsertObject(clone, None, None)  
      TexTag=clone.GetTag(c4d.Ttexture)  
      TexTag[c4d.TEXTURETAG_MATERIAL] = om[1]  
        
  c4d.EventAdd()  
  
if __name__=='__main__':  
  main()

Best wishes
Martin

Helper

On 03/11/2014 at 15:50, xxxxxxxx wrote:

Thanks very much for this Martin, I'll try it out.