@bentraje

I think name atttribute is not easy as old c4d SDK to use . It cann't print in console .

I use this to get Name , and Set Name .
some codes in python sdk didn't work and return None .Maxon SDK has a example to get info form node retrieve_information_r26.py

    # 获取名称 ： 
    def GetNodeName(self, node, display=False):
        """
        Retrieve the displayed name of a node.
        
        Parameters
        ----------        
        Args:
            node: (maxon.GraphNode): The node to retrieve the name from.
            display: print info when display is True
        Returns:
            Optional[str]: The node name, or None if the Node name can't be retrieved.
        """
        if node is None:
            return None

        nodeName = node.GetValue(maxon.NODE.BASE.NAME)

        if nodeName is None:
            nodeName = node.GetValue(maxon.EffectiveName)

        if nodeName is None:
            nodeName = str(node)
        if display ==True :
            print(nodeName)
        return nodeName   

@ferdinand Maybe the broblem in not the code but the Cinema Application, Some friends also told me when they load Aseets(especially at a large Asset data like 20G in disk) , It always take a long time or even not load unless restart C4D.

You are right, I should call WaitForDatabaseLoading() function for safe. That's my stupid , I didn't notice the loading failed in state bar

I do check the Python examples in GitHub , but I think maybe it is a dcc of my config problem, some friends also said assets broswer is a little slower . (perhaps due to china a internet far away from maxon server) .hope it will be fix in uncoming C4D

@bentraje
A little set for this , hope it can help something
Set color space

@bentraje
I just drag and drop the item and return the str ,
I also didn't found any str define in cinema folder

@ferdinand

A little update for this topic , my final solution for this problem is reg some tokens , and reg a plugin to analysis the project name and set token string depend on project name structure .

like a project name has a version sign like _v , than the output path set a $v for render . All the tokens can set by the analysis plugin . It is a bit stupid way but work well for a quickly set render path just one click.

Cheers

@bentraje
Reflection layer symbols can't drag to console to get , maybe you can check Materials document , And GitHub Example for this.

And Shout out to @ferdinand ，this is my topic for this .

Here is a little code I used to set textures for BaseMaterials :

import c4d

def main():
    # Creates a standard C4D Material
    mat = c4d.Material()
    if mat is None:
        raise RuntimeError("Failed to create a new default material.")

    # Removes the default specular layer
    mat.RemoveReflectionLayerIndex(0)

    # Adds a layer
    layer = mat.AddReflectionLayer()
    if layer is None:
        raise RuntimeError("Failed to create a new reflection layer.")

    # Sets the Layer to Blinn mode
    mat[layer.GetDataID() + c4d.REFLECTION_LAYER_MAIN_DISTRIBUTION] = c4d.REFLECTION_DISTRIBUTION_SPECULAR_BLINN
    
    # Sets the shader for width
    colormap = "filename"
    shacolor = c4d.BaseList2D(c4d.Xbitmap)
    shacolor[c4d.BITMAPSHADER_FILENAME] = colormap
    mat.InsertShader(shacolor)    
    
    # Defines the Roughness float value
    mat[layer.GetDataID() + c4d.REFLECTION_LAYER_MAIN_SHADER_ROUGHNESS] = shacolor

    # Inserts a material in the active doc
    doc.InsertMaterial(mat)

    # Pushes an update event to Cinema 4D
    c4d.EventAdd()

if __name__ == '__main__':
    main()

@m_adam Thanks a lot for this example A big shout out !

@bentraje
Reflection layer symbols can't drag to console to get , maybe you can check Materials document , And GitHub Example for this.

And Shout out to @ferdinand ，this is my topic for this .

Here is a little code I used to set textures for BaseMaterials :

import c4d

def main():
    # Creates a standard C4D Material
    mat = c4d.Material()
    if mat is None:
        raise RuntimeError("Failed to create a new default material.")

    # Removes the default specular layer
    mat.RemoveReflectionLayerIndex(0)

    # Adds a layer
    layer = mat.AddReflectionLayer()
    if layer is None:
        raise RuntimeError("Failed to create a new reflection layer.")

    # Sets the Layer to Blinn mode
    mat[layer.GetDataID() + c4d.REFLECTION_LAYER_MAIN_DISTRIBUTION] = c4d.REFLECTION_DISTRIBUTION_SPECULAR_BLINN
    
    # Sets the shader for width
    colormap = "filename"
    shacolor = c4d.BaseList2D(c4d.Xbitmap)
    shacolor[c4d.BITMAPSHADER_FILENAME] = colormap
    mat.InsertShader(shacolor)    
    
    # Defines the Roughness float value
    mat[layer.GetDataID() + c4d.REFLECTION_LAYER_MAIN_SHADER_ROUGHNESS] = shacolor

    # Inserts a material in the active doc
    doc.InsertMaterial(mat)

    # Pushes an update event to Cinema 4D
    c4d.EventAdd()

if __name__ == '__main__':
    main()

Hi @m_adam ,

I also have a problem with filename in the preference . It has the same problem as @potashalum did, and I look for the Github py-preference example , I notice that a note Filename parameter type are not supported. .

But I fine some build-in res file has the FILENAME attribute (like ...\description\prefsbrowser.res) , and it can actually read and set filename in preference , Is it fixed now and miss some information that I failed to do this in python

For the suggestion of the example, I try to fake it with a bitmap , but I failed draw a bitmap in res file ,could you please update the Github example a little for this ,or some tricks and tips?

Thanks!

@bentraje Thanks a lot ! I always want to spend some thing to do this , but unfortunately I am struggling to work with rendering .

If I have some time hopes I can change this a bit more

@ferdinand

A little update for this topic , my final solution for this problem is reg some tokens , and reg a plugin to analysis the project name and set token string depend on project name structure .

like a project name has a version sign like _v , than the output path set a $v for render . All the tokens can set by the analysis plugin . It is a bit stupid way but work well for a quickly set render path just one click.

Cheers

@ferdinand Thanks for this detailed explanation.

About 1st , the AttributeError: parameter set failed . I remembered that I trying to set a cloner Inexclude data or something like that , sometimes it will return None type , but when I drag a "data" to it , it can be received.(seems like in R26 , I have update to 2023.1.0 , and try it just now , it will work again , I can't make sure want is happened earlier )

new_mat_link = new_mat[c4d.ID_MATERIALASSIGNMENTS]

And the Object , this is a great explanation. I didn't realized that material assignment is depend on actually texture tag

@ferdinand said in c4d.MatAssignData can't link.:

There could be a plethora of reasons why it was done like this, ranging from pure oversight to an intentional boundary.

And the last InsertObject why didn't work explain I can't really understand (It's to technical to me ) But the fix function is really smart way to bypass the problem .

Cheers

Hi :

Question :

I try to merge all selected materials assignment to a new material assignment . aka merge materials to one new material .

But it won't assign the new MatAssignData to new material .

How can I fix this

Here is the mini code :

# @2023.1.0
from typing import Optional
import c4d

doc: c4d.documents.BaseDocument  # The active document
op: Optional[c4d.BaseObject]  # The active object, None if unselected

def merge_material() -> None:
    myMat = doc.GetActiveMaterial()
    ObjLink = myMat[c4d.ID_MATERIALASSIGNMENTS]

    new_mat = c4d.BaseMaterial(5703)
    doc.InsertMaterial(new_mat)
    new_mat.SetName(myMat.GetName() + " Combine")
    new_mat_link = c4d.MatAssignData()

    myCount = ObjLink.GetObjectCount()
    for i in range(myCount) :  
        tag = ObjLink.ObjectFromIndex(doc,i)
        obj = tag.GetObject()
        #print (obj)
        new_mat_link.InsertObject(obj,0)
    
    print(new_mat_link.GetObjectCount())
    
    # this will failed
    # AttributeError: parameter set failed
    new_mat[c4d.ID_MATERIALASSIGNMENTS] = new_mat_link
    
    doc.SetActiveMaterial(new_mat, c4d.SELECTION_NEW)
    
    c4d.EventAdd()
    
if __name__ == '__main__':
    merge_material()

@ferdinand Thanks for the new solution for SetActiveObject . It works as expected.

Much appreciated !

@bentraje

I think name atttribute is not easy as old c4d SDK to use . It cann't print in console .

I use this to get Name , and Set Name .
some codes in python sdk didn't work and return None .Maxon SDK has a example to get info form node retrieve_information_r26.py

    # 获取名称 ： 
    def GetNodeName(self, node, display=False):
        """
        Retrieve the displayed name of a node.
        
        Parameters
        ----------        
        Args:
            node: (maxon.GraphNode): The node to retrieve the name from.
            display: print info when display is True
        Returns:
            Optional[str]: The node name, or None if the Node name can't be retrieved.
        """
        if node is None:
            return None

        nodeName = node.GetValue(maxon.NODE.BASE.NAME)

        if nodeName is None:
            nodeName = node.GetValue(maxon.EffectiveName)

        if nodeName is None:
            nodeName = str(node)
        if display ==True :
            print(nodeName)
        return nodeName   

@ferdinand

That's all right I will move on another work for now.
Thanks for your time