How do I get the Color value from an RGB node with Python?












1












$begingroup$


I'm a seasoned programmer, but fairly new to blender and 3D-modeling in general. So to get an understanding of different properties I want to write python scripts to create multiple renderings with different settings of various values.



In the example below I have figured out how to change the Volume Absorption Density, ex:



bpy.data.materials['MyMaterial'].node_tree.nodes['Volume Absorption'].inputs['Density'].default_value = 100


But not the RGB-node. It seems I cant even get the current values out of it. Some things I have tried:



bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color

bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.r

bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.outputs['Color']


How do I get and set output values of the RGB-node in py python-script?



enter image description here






python scripting nodes







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UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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    1












    $begingroup$


    I'm a seasoned programmer, but fairly new to blender and 3D-modeling in general. So to get an understanding of different properties I want to write python scripts to create multiple renderings with different settings of various values.



    In the example below I have figured out how to change the Volume Absorption Density, ex:



    bpy.data.materials['MyMaterial'].node_tree.nodes['Volume Absorption'].inputs['Density'].default_value = 100


    But not the RGB-node. It seems I cant even get the current values out of it. Some things I have tried:



    bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color
    
bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.r
    
bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.outputs['Color']


    How do I get and set output values of the RGB-node in py python-script?



    enter image description here






    python scripting nodes







    share|improve this question









    New contributor




    UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$















      1












      1








      1


      1



      $begingroup$


      I'm a seasoned programmer, but fairly new to blender and 3D-modeling in general. So to get an understanding of different properties I want to write python scripts to create multiple renderings with different settings of various values.



      In the example below I have figured out how to change the Volume Absorption Density, ex:



      bpy.data.materials['MyMaterial'].node_tree.nodes['Volume Absorption'].inputs['Density'].default_value = 100


      But not the RGB-node. It seems I cant even get the current values out of it. Some things I have tried:



      bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color
      
bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.r
      
bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.outputs['Color']


      How do I get and set output values of the RGB-node in py python-script?



      enter image description here






      python scripting nodes







      share|improve this question









      New contributor




      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I'm a seasoned programmer, but fairly new to blender and 3D-modeling in general. So to get an understanding of different properties I want to write python scripts to create multiple renderings with different settings of various values.



      In the example below I have figured out how to change the Volume Absorption Density, ex:



      bpy.data.materials['MyMaterial'].node_tree.nodes['Volume Absorption'].inputs['Density'].default_value = 100


      But not the RGB-node. It seems I cant even get the current values out of it. Some things I have tried:



      bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color
      
bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.r
      
bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].color.outputs['Color']


      How do I get and set output values of the RGB-node in py python-script?



      enter image description here






      python scripting nodes




      python scripting nodes






      share|improve this question









      New contributor




      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 26 mins ago









      Ray Mairlot

      22.3k56395




      22.3k56395






      New contributor




      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 1 hour ago









      UlfRUlfR

      1084




      1084




      New contributor




      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      UlfR is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















          2 Answers
          2






          active

          oldest

          votes


















          3












          $begingroup$

          Welcome to Blender.SE, UlfR.



          Finding out a property in Blender is relatively easy. Make sure, you have python tooltips enabled (in the user preferences).



          Then hover your mouse cursor over the property (in this case the color). A tooltip containing the python command will appear.



          tooltip



          The property you seek seems to be outputs[0].default_value.



          def_rgb = bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value


          It is a bpy_prop_array by default, so you may want to convert it to a list.



          float_values = list(def_rgb)





          share|improve this answer









          $endgroup$













          • $begingroup$
            Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
            $endgroup$
            – Leander
            27 mins ago










          • $begingroup$
            my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
            $endgroup$
            – rob
            19 mins ago



















          1












          $begingroup$

          As you already found you way to the node tree, the "Copy data path" option is generally very helpful:



          Right click on the field you want to access and use the "Copy data path" option.



          bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value



          You can also look at the answers here and here



          How to get data access to the data path






          share|improve this answer











          $endgroup$













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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3












            $begingroup$

            Welcome to Blender.SE, UlfR.



            Finding out a property in Blender is relatively easy. Make sure, you have python tooltips enabled (in the user preferences).



            Then hover your mouse cursor over the property (in this case the color). A tooltip containing the python command will appear.



            tooltip



            The property you seek seems to be outputs[0].default_value.



            def_rgb = bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value


            It is a bpy_prop_array by default, so you may want to convert it to a list.



            float_values = list(def_rgb)





            share|improve this answer









            $endgroup$













            • $begingroup$
              Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
              $endgroup$
              – Leander
              27 mins ago










            • $begingroup$
              my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
              $endgroup$
              – rob
              19 mins ago
















            3












            $begingroup$

            Welcome to Blender.SE, UlfR.



            Finding out a property in Blender is relatively easy. Make sure, you have python tooltips enabled (in the user preferences).



            Then hover your mouse cursor over the property (in this case the color). A tooltip containing the python command will appear.



            tooltip



            The property you seek seems to be outputs[0].default_value.



            def_rgb = bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value


            It is a bpy_prop_array by default, so you may want to convert it to a list.



            float_values = list(def_rgb)





            share|improve this answer









            $endgroup$













            • $begingroup$
              Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
              $endgroup$
              – Leander
              27 mins ago










            • $begingroup$
              my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
              $endgroup$
              – rob
              19 mins ago














            3












            3








            3





            $begingroup$

            Welcome to Blender.SE, UlfR.



            Finding out a property in Blender is relatively easy. Make sure, you have python tooltips enabled (in the user preferences).



            Then hover your mouse cursor over the property (in this case the color). A tooltip containing the python command will appear.



            tooltip



            The property you seek seems to be outputs[0].default_value.



            def_rgb = bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value


            It is a bpy_prop_array by default, so you may want to convert it to a list.



            float_values = list(def_rgb)





            share|improve this answer









            $endgroup$



            Welcome to Blender.SE, UlfR.



            Finding out a property in Blender is relatively easy. Make sure, you have python tooltips enabled (in the user preferences).



            Then hover your mouse cursor over the property (in this case the color). A tooltip containing the python command will appear.



            tooltip



            The property you seek seems to be outputs[0].default_value.



            def_rgb = bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value


            It is a bpy_prop_array by default, so you may want to convert it to a list.



            float_values = list(def_rgb)






            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 28 mins ago









            LeanderLeander

            12.1k11549




            12.1k11549












            • $begingroup$
              Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
              $endgroup$
              – Leander
              27 mins ago










            • $begingroup$
              my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
              $endgroup$
              – rob
              19 mins ago


















            • $begingroup$
              Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
              $endgroup$
              – Leander
              27 mins ago










            • $begingroup$
              my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
              $endgroup$
              – rob
              19 mins ago
















            $begingroup$
            Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
            $endgroup$
            – Leander
            27 mins ago




            $begingroup$
            Miceterminator beat me to it by 3 minutes. I will leave this answer up, as it mentions the python tooltip and his doesn't you could accept his answer as the correct one however.
            $endgroup$
            – Leander
            27 mins ago












            $begingroup$
            my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
            $endgroup$
            – rob
            19 mins ago




            $begingroup$
            my problem was that bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value = (1.0,1.0,0.5,1.0) works but bpy.data.materials[1].node_tree.nodes['RGB'].outputs[0].default_value produces nothing in the Python console. Converting it to list then displayed the hidden values.
            $endgroup$
            – rob
            19 mins ago













            1












            $begingroup$

            As you already found you way to the node tree, the "Copy data path" option is generally very helpful:



            Right click on the field you want to access and use the "Copy data path" option.



            bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value



            You can also look at the answers here and here



            How to get data access to the data path






            share|improve this answer











            $endgroup$


















              1












              $begingroup$

              As you already found you way to the node tree, the "Copy data path" option is generally very helpful:



              Right click on the field you want to access and use the "Copy data path" option.



              bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value



              You can also look at the answers here and here



              How to get data access to the data path






              share|improve this answer











              $endgroup$
















                1












                1








                1





                $begingroup$

                As you already found you way to the node tree, the "Copy data path" option is generally very helpful:



                Right click on the field you want to access and use the "Copy data path" option.



                bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value



                You can also look at the answers here and here



                How to get data access to the data path






                share|improve this answer











                $endgroup$



                As you already found you way to the node tree, the "Copy data path" option is generally very helpful:



                Right click on the field you want to access and use the "Copy data path" option.



                bpy.data.materials['MyMaterial'].node_tree.nodes['RGB'].outputs[0].default_value



                You can also look at the answers here and here



                How to get data access to the data path







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited 22 mins ago

























                answered 31 mins ago









                miceterminatormiceterminator

                1,89621124




                1,89621124






















                    UlfR is a new contributor. Be nice, and check out our Code of Conduct.










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                    UlfR is a new contributor. Be nice, and check out our Code of Conduct.












                    UlfR is a new contributor. Be nice, and check out our Code of Conduct.
















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