fusion shader insert shader()



  • On 06/03/2017 at 08:08, xxxxxxxx wrote:

    I am having problems filling both channels of the fusion shader with python.

    What I am trying to achieve is:
    - Take the existing shader, if any, from the colour channel.
    - Create a fusion shader
    - Insert a colour shader in the blend channel
    - Insert the original shader in the base channel
    - Insert the fusion shader into the colour channel

    I can add the colour shader & update the material with the fusion shader but when I try to add the original shader to the base channel I get the message:

    "AssertionError: Found next objects. Please add them seperately"

    I guess it is a syntax problem.

    Here is a synapsis of my code:

    existing_shader = mat[c4d.MATERIAL_COLOR_SHADER]
    col_shader = c4d.BaseList2D(c4d.Xcolor)

    fusion_shader = c4d.BaseList2D(c4d.Xfusion)

    fusion_shader[c4d.SLA_FUSION_BLEND_CHANNEL] = col_shader
    fusion_shader.InsertShader(col_shader)
    fusion_shader.Message(c4d.MSG_CHANGE)

    if existing_shader:
        fusion_shader[c4d.SLA_FUSION_BASE_CHANNEL] = existing_shader
        fusion_shader.InsertShader(existing_shader)
        fusion_shader.Message(c4d.MSG_CHANGE)

    mat[c4d.MATERIAL_COLOR_SHADER] = fusion_shader
    mat.InsertShader(fusion_shader)
    mat.Message(c4d.MSG_CHANGE)
    mat.Update(True, True)

    The error is for th eline:

    fusion_shader.InsertShader(existing_shader)



  • On 07/03/2017 at 01:11, xxxxxxxx wrote:

    Hello,

    any GeListNode can only be part of one single list. Before insertion into a new list, you need to remove it from the old list (existing_shader.Remove()).



  • On 07/03/2017 at 01:41, xxxxxxxx wrote:

    Thanks Andreas, works perfectly, I understand better now.


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