PSD Layersets

Helper

On 24/07/2017 at 01:30, xxxxxxxx wrote:

Hello,

Is it possible to set layers from .psd files?
I did find layersets in the SDK, but i cant find a way to set them.

https://developers.maxon.net/docs/py/2023_2/modules/c4d/CustomDataType/LayerSet/index.html

Helper

On 24/07/2017 at 08:13, xxxxxxxx wrote:

Here a code I did 6 months ago. So it's not the cleanest but it's working and since this subject is not very well documented I guess It gonna help you

    def setAlpha(self,path,shader) :
        if path.endswith( ('.psd' , '.PSD') ) : #PSD
            bc = c4d.BaseContainer()
            bc.SetFilename(c4d.LOADTEXTURE_FILENAME, path.encode('utf-8'))
            tex = c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_LOADTEXTURE, doc=self.doc, tex=None, bc=bc)
            
            if tex is False:
                print path
                return
            layer = tex.GetFirstLayer()
            layerName = layer.GetName()
            layermode = c4d.LAYERSETMODE_LAYERALPHA
            
            c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_FORCECLOSETEXTURE, doc=self.doc, tex=tex, bc=c4d.BaseContainer())
            
        else:#tiff, But if you already know the name simply use this
            layerName = 'Alpha'
            layermode = c4d.LAYERSETMODE_ALPHAS
            
        
        layerSet = c4d.LayerSet()
        layerSet.SetMode(layermode)
        layerSet.AddLayer(layerName)
        shader[c4d.BITMAPSHADER_LAYERSET] = layerSet

If it's an psd it load it and have a c4d.modules.bodypaint.PaintTexture object.
Then now you are able to list all the layer. I my case I always used the first layer, but you can loop using GetNext/GetDown, in other way if you already know the name of the layer simply use the exemple for the tiff

Then after you just have to create a LayerSet and set thoses data.
Hope it's helped

Helper

On 26/07/2017 at 08:25, xxxxxxxx wrote:

Thanks works like a charm!

Helper

On 27/07/2017 at 03:12, xxxxxxxx wrote:

Little extra question:

I have a test code that can find a psd layer by name and then sets it. but it returns only the name. I need it to return the path in the psd. like somefolder/somefolder/lmb_tp

right now it only returns the name of layer that i'm seeking.

import c4d
from c4d import gui
#Welcome to the world of Python
  
path = 'C:/Program Files/MAXON/CINEMA 4D R18/library/scripts/rig_menu/test.psd'
  
def main() :
    bc = c4d.BaseContainer()
    bc.SetFilename(c4d.LOADTEXTURE_FILENAME, path.encode('utf-8'))
    tex = c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_LOADTEXTURE, doc=doc, tex=None, bc=bc)
  
    mat = doc.SearchMaterial("Mat.1")
    layerName = '' 
    layers = tex.GetFirstLayer()
    #search for name and store in layername
    layerName = FindLayerPSD(layers, 'lmb_tp')
        
    c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_FORCECLOSETEXTURE, doc=doc, tex=tex, bc=c4d.BaseContainer())   
    
    layerSet = c4d.LayerSet()
    #set color
    layermode = c4d.LAYERSETMODE_LAYERS
    layerSet.AddLayer(layerName)
    layerSet.SetMode(layermode)       
    sha = mat[c4d.MATERIAL_COLOR_SHADER]
    sha[c4d.BITMAPSHADER_LAYERSET] = layerSet
    mat[c4d.MATERIAL_COLOR_SHADER] = sha
    #set alpha
    layermode = c4d.LAYERSETMODE_LAYERALPHA
    layerSet.AddLayer(layerName)
    layerSet.SetMode(layermode)       
    sha = mat[c4d.MATERIAL_ALPHA_SHADER]
    sha[c4d.BITMAPSHADER_LAYERSET] = layerSet
    mat[c4d.MATERIAL_ALPHA_SHADER] = sha
    #force redraw    
    c4d.CallCommand(12147)
    c4d.EventAdd()
  
  
def GetNextObject(op) :
    if op==None:
        return None  
    if op.GetDown() :
        return op.GetDown()  
    while not op.GetNext() and op.GetUp() :
        op = op.GetUp()  
    return op.GetNext()
 
def FindLayerPSD(op, gname) : 
    if op is None:
        return
    count = 0  
    while op:
        count += 1
        if gname in op.GetName() :  
            layername = op.GetName()       
        op = GetNextObject(op)
    return layername
   
if __name__=='__main__':
    main()

Helper

On 27/07/2017 at 03:42, xxxxxxxx wrote:

I did it for object but since BaseObject and c4d.modules.bodypaint.PaintTexture are both BaseList2D that change nothing.

I comment it(maybe too much? :p) but if you still don't understand a part feel free to ask

import c4d
  
def get_full_path(op) :
    full_path = list()
    while op:
        full_path.append(op.GetName())
        op = op.GetUp()
        
    #Since we build from bottom to parent we need to reverse the list to keep it consistent
    full_path.reverse()
  
    #Then we join for build our string line
    str_full_path = "/".join(full_path)
    return str_full_path
  
def find_by_name(op, name_to_find) :
    #We loop throught all op
    while op:        
        #If the name is the same then our name to find we lunch our function to get the full path then we return
        if op.GetName() == name_to_find:
            return get_full_path(op)
        
        #We lunch recusrive search like that we get also child object
        #Since it's recursive function that mean a child function can have fund the object
        #Then if a child function make a return we also need to return in the parent function
        return_value = find_by_name(op.GetDown(), name_to_find)
        if return_value is not None:
            return return_value
        
        #then finally we go the next object
        op = op.GetNext()
        
    #If we return here that mean we never get op.GetName == name_to_find so we return None
    return None
  
def main() :
    print find_by_name(doc.GetFirstObject(), "aa")
  
if __name__=='__main__':
    main()

Helper

On 27/07/2017 at 04:27, xxxxxxxx wrote:

Thanks for the fast reply, exactly what i was looking for