Something I’ve found myself using a lot lately is making nurbs curves renderable in V-Ray. This is a much faster and more flexible workflow in my opinion compared to the old way of extruding geometry along your curves in order to render them. It’s simply a V-Ray custom attribute that you add to the shapenode of your curve.
When working with lots of curves it can be a bit tedious to add all the attributes manually. One way to speed the process up is with scripting. How I like to work is that if I know that a bunch of curves will have the same shader and attributes, I select them and run my script that will apply the same attributes to all of them. Here is the script I wrote in Python:
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# Select curves in the viewport add make them renderable in V-Ray. import maya.cmds as cmds import maya.OpenMaya as om # Convert the selection from transforms to shapes transforms = cmds.ls(tr=True, sl=True) shapes = cmds.listRelatives(transforms, s=True) # Set the values you want for your renderable curves Tesselation = 2 StartWidht = 0.015 # Enter the name of the shader you like to apply to your curves shader = "Curve_shd" for s in shapes: cmds.select(s, r=True) cmds.vray("addAttributesFromGroup", s, "vray_nurbscurve_renderable", 1) cmds.getAttr(".vrayNurbsCurveRenderable") cmds.setAttr(".vrayNurbsCurveRenderable", 1) cmds.getAttr(".vrayNurbsCurveMaterial") cmds.connectAttr(shader + ".outColor", ".vrayNurbsCurveMaterial") cmds.getAttr(".vrayNurbsCurveTesselation") cmds.setAttr(".vrayNurbsCurveTesselation", Tesselation) cmds.getAttr(".vrayNurbsCurveStartWidth") cmds.setAttr(".vrayNurbsCurveStartWidth", StartWidht) cmds.select(s, d=True) om.MGlobal.displayInfo("Renderable Curves added to selection") |
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