Open Texture using CallButton

Helper

On 04/06/2013 at 06:41, xxxxxxxx wrote:

What I want to do is to open a texture using the Open Texture command.
But I do not know how to do that is Python.
Using the CallCommand is not enough, because after the CallCommand a file dialog opens where I have to fill in the filename and click the Open Button.

How should I do all of this in Python.

I hope his explains what I want

Helper

On 04/06/2013 at 06:53, xxxxxxxx wrote:

Ah ok, your first posting actually explained it just fine, I should have red more carefully but I
got confused by the wall of text

CallCommand() does obviously support no additional parameters. You have to to use one
of the SendCommand methods if you want to specify a parameter. Check :

c4d.modules.bodypaint.SendPainterCommand()

edit : I haven't used the method yet, but i guess the flag PAINTER_LOADTEXTURE will
do, what you are looking for.

Helper

On 05/06/2013 at 01:53, xxxxxxxx wrote:

Sorry, no success. This is what I tried:

def OpenTexture() :
    texturename = "studio003.hdr"
   
    doc = c4d.documents.GetActiveDocument()
    c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_LOADTEXTURE, doc=doc, tex=texturename)
    
    return True

This gave the error:
TypeError: argument 3 must be c4d.modules.bodypaint.PaintTexture, not str

Next attempt

    settings = c4d.BaseContainer()
    settings.SetString(c4d.LOADTEXTURE_FILENAME, texturename)   
  
    doc = c4d.documents.GetActiveDocument()
    c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_LOADTEXTURE, doc=None, tex=None, bc=settings)

Now c4d crashes

Next attempt:

    settings = c4d.BaseContainer()
    settings.SetString(c4d.LOADTEXTURE_FILENAME, texturename)   
    painttext = c4d.modules.bodypaint.PaintTexture()  
  
    doc = c4d.documents.GetActiveDocument()
    c4d.modules.bodypaint.SendPainterCommand(c4d.PAINTER_LOADTEXTURE, doc=doc, tex=painttext, bc=settings)

This gave the error:
This type cannot be instantiated

Helper

On 05/06/2013 at 02:58, xxxxxxxx wrote:

try first one with an absolute path again, it should work, or you have found a bug.
make sure you escape your path string correctly (we had that one often in the last
time, so no offense ).

Helper

On 05/06/2013 at 03:25, xxxxxxxx wrote:

Originally posted by xxxxxxxx

try first one with an absolute path again, it should work, or you have found a bug.

I changed the filename to: texturename = r"D:\studio003.hdr"

Sorry, I do not think that having a relative path is the issues.
C4d does not complain that it can''t find the texture.
I changed it to an absolute path, but still the same issues:

1) TypeError: argument 3 must be c4d.modules.bodypaint.PaintTexture, not str
2) crash, because tex = None?
3) This type cannot be instantiated

So, if I can instantiate it correctly, it might work.

Could you please tell me how to instantiate a PaintTexture?

Regards, Pim

Helper

On 05/06/2013 at 04:32, xxxxxxxx wrote:

Hm, took a look at it, your second version in the first posting seems to be technically correct,
and the crashing is definitely a sign for a bug. For instantiating the PaintTexture - you can't -
it is not implemented. You might have some luck with other Bodypaint bitmap class types and
then weasel your way somehow back, but the parent/ super class PaintBitmap is abstract
which meas we are not meant to instantiate it at all.

I guess you can just hope that a maxon employee explains how module was intended, the
whole thing seems rather buggy, but I might be wrong.

Helper

On 05/06/2013 at 04:38, xxxxxxxx wrote:

Ok, thanks for all the support and effort.

I guess I have to find another way or hopefully, like you say, Yannick can ask the programmers.

Helper

On 05/06/2013 at 08:45, xxxxxxxx wrote:

The wrapped Python version of SendPainterCommand() is bugged.
You can see this old thread for the C++ API that shows how to use PAINTER_LOADTEXTURE command.
It works fine in C++ but crahes in Python.
Also the documentation isn't accurate because it tells to pass the texture to tex parameter while PAINTER_LOADTEXTURE command returns the PaintTexture if the call was successful.

I'll report this issue.

Helper

On 06/06/2013 at 00:26, xxxxxxxx wrote:

Originally posted by xxxxxxxx

The wrapped Python version of SendPainterCommand() is bugged.
You can see this old thread for the C++ API that shows how to use PAINTER_LOADTEXTURE command.
It works fine in C++ but crahes in Python.
Also the documentation isn't accurate because it tells to pass the texture to tex parameter while PAINTER_LOADTEXTURE command returns the PaintTexture if the call was successful.

I'll report this issue.

Ok, thanks for the information.
Of course the next question is: when will it be solved.

In the mean time, is it difficult to call C++ modules from Python?

Helper

On 24/06/2013 at 10:37, xxxxxxxx wrote:

Pim,
I tried IM'ing you back but your messages inbox is full. So I hope you see this reply.

The answer to your question is yes. The images in the BP texture window are actually layers.
A more accurate name for the texture window would be the "Texture Layer Window".
The working C++ version for this is here:https://developers.maxon.net/forum/topic/7242/8316_selecting-images-in-thetexture-view-window

I took a look at converting it to Python. But that would require the following:
-Loading the image file as a PaintTexture object
-Saving that as a new layer
-Selecting that layer so it shows in the texture window

There's no documentation on creating PaintTexture objects. So I got stuck right away with the conversion. But Yannick also mentioned that the wrapper itself has bugs in it. So this might not be possible in Python yet.

-ScottA

Helper

On 24/06/2013 at 12:38, xxxxxxxx wrote:

Hi ScottA,

Yes, the inbox is limited to 5 messages. So indeed full.

Thanks for the clear reply.
More and more I am considering switching over to C++.

Regards, Pim