#c4dpytask #medium How can you load a texture and assign it to a plane with image dimensions? (you need a LoadDialog, BaseBitmap and Oplane)

c4dpytask-2.py

# @rosensteinn #c4dpytask #medium How can you load a texture and assign
# it to a plane with image dimensions? (you need a LoadDialog, BaseBitmap
# and Oplane)

import c4d

def main():
    # Poll the user for a filename. We specify that the file-type may be
    # an image only.
    filename = c4d.storage.LoadDialog(c4d.FILESELECTTYPE_IMAGES)

    # If the filename is empty, the user cancelled the dialog and does
    # not want to proceed.
    if not filename:
        return

    # Load the image into a bitmap.
    bitmap = c4d.bitmaps.BaseBitmap()
    result, ismovie = bitmap.InitWith(filename)

    # We should abort if the image was not loaded correctly.
    if result != c4d.IMAGERESULT_OK:
        # And tell the user what happened!
        c4d.gui.MessageDialog("The image could not be loaded, we're sorry about this!")
        return

    # If we come this far, the image was loaded successfully.
    # We now need to obtain its dimensions in order to set the
    # size of the plane which we'll create later.
    width, height = bitmap.GetSize()

    # Now create a Plane-Object and set its dimensions.
    plane = c4d.BaseObject(c4d.Oplane)
    plane[c4d.PRIM_PLANE_WIDTH] = width
    plane[c4d.PRIM_PLANE_HEIGHT] = height

    # Great! Now we need to insert the plane into the scene and tell the
    # undo system about that!
    doc.InsertObject(plane)
    doc.AddUndo(c4d.UNDOTYPE_NEW, plane)

    # Next step is to create a material with the image in the color
    # channel! 1. The material
    mat = c4d.BaseMaterial(c4d.Mmaterial)

    # 2. The bitmap shader.
    shader = c4d.BaseShader(c4d.Xbitmap)
    shader[c4d.BITMAPSHADER_FILENAME] = filename

    # 3. Add the shader to the material.
    mat.InsertShader(shader)                    # 3a) insert
    mat[c4d.MATERIAL_COLOR_SHADER] = shader     # 3b) link

    # 4. Insert the material into the document. (Remember that undo stuff
    # from above?)
    doc.InsertMaterial(mat)
    doc.AddUndo(c4d.UNDOTYPE_NEW, mat)

    # The last thing to do is to create a Texture Tag which references the
    # material in UVW projection mode!
    # Note: Since we've added the plane in this step, we do not need to add
    # an undo for the tag. The tag will be removed with the plane when an
    # undo was made!
    texture_tag = plane.MakeTag(c4d.Ttexture)
    texture_tag[c4d.TEXTURETAG_MATERIAL] = mat
    texture_tag[c4d.TEXTURETAG_PROJECTION] = c4d.TEXTURETAG_PROJECTION_UVW

    # Last but not least, tell Cinema to update the UI and the viewport.
    c4d.EventAdd()

main()