bloodfar Posted March 1, 2017 Share Posted March 1, 2017 Hi everyone , I have a little trouble with somes volumes. I render a volume in arnold and I wan't to change the density with a volume vop custom noise in shading. The problem is that I can't read the result of this noise in arnold shading level. I know I can read houdini geometrie attribute in arnold with "user_data_float/rgb/string" node, but I can't read a "bind" from a volume vop... Here a simple scene of what I try to do Thanks for your help ExampleScene.hipnc Quote Link to comment Share on other sites More sharing options...
martinkindl83 Posted March 2, 2017 Share Posted March 2, 2017 i can see some basic problems. You creating attribute on volumes. If you middle click on your VOP you will see that you have no attribute created. Second in the shader you are not loading any volume. Im not sure what your goal. I recreated your scene (as in aprentice i cant run arnold). Created another volume called noise and im saving your attribute there, then im merging density and noise volume into one that im rendering. Im rendering density and in shader im loading noise volume and connect it to your scatter color. Not sure if that helps to you. ExampleScene1.hip Quote Link to comment Share on other sites More sharing options...
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