Maya Script: Arnold Render Curves
Added 2023-06-06 10:57:21 +0000 UTCDownload this .py file:
that you can open in the script editor,
or
simply copy/paste the code below to use (they're the same):
#Created by AnimatorsJourney.com
import maya.cmds as cmds
import functools
def set_render_curve(curve, shader):
# Get the shape nodes connected to the curve
curve_shapes = cmds.listRelatives(curve, shapes=True, fullPath=True)
for curve_shape in curve_shapes:
# Check if the shape node is a NURBS curve
if cmds.nodeType(curve_shape) != "nurbsCurve":
continue
# Check if the Arnold node exists for the curve shape
if not cmds.objExists(curve_shape + ".aiRenderCurve"):
print("No Arnold node found for", curve_shape)
continue
# Set render curve attribute to True
cmds.setAttr(curve_shape + ".aiRenderCurve", True)
# Connect the shader to aiCurveShader attribute
cmds.connectAttr(shader + ".outColor", curve_shape + ".aiCurveShader", force=True)
print("Render curve enabled and shader connected for", curve_shape)
def set_curve_width(curve, width):
# Get the shape nodes connected to the curve
curve_shapes = cmds.listRelatives(curve, shapes=True, fullPath=True)
for curve_shape in curve_shapes:
# Check if the shape node is a NURBS curve
if cmds.nodeType(curve_shape) != "nurbsCurve":
continue
# Set the aiCurveWidth attribute
cmds.setAttr(curve_shape + ".aiCurveWidth", width)
print("Curve width set to", width, "for", curve_shape)
def set_primary_visibility(curve, primary_visibility):
# Get the shape nodes connected to the curve
curve_shapes = cmds.listRelatives(curve, shapes=True, fullPath=True)
for curve_shape in curve_shapes:
# Check if the shape node is a NURBS curve
if cmds.nodeType(curve_shape) != "nurbsCurve":
continue
# Set the primaryVisibility attribute
cmds.setAttr(curve_shape + ".primaryVisibility", primary_visibility)
print("Primary visibility set to", primary_visibility, "for", curve_shape)
def set_casts_shadows(curve, casts_shadows):
# Get the shape nodes connected to the curve
curve_shapes = cmds.listRelatives(curve, shapes=True, fullPath=True)
for curve_shape in curve_shapes:
# Check if the shape node is a NURBS curve
if cmds.nodeType(curve_shape) != "nurbsCurve":
continue
# Set the castsShadows attribute
cmds.setAttr(curve_shape + ".castsShadows", casts_shadows)
print("Casts shadows set to", casts_shadows, "for", curve_shape)
def apply_curve_settings(curve, shader, width, primary_visibility, casts_shadows):
set_render_curve(curve, shader)
set_curve_width(curve, width)
set_primary_visibility(curve, primary_visibility)
set_casts_shadows(curve, casts_shadows)
def create_ui():
if cmds.window("curveSettingsWindow", exists=True):
cmds.deleteUI("curveSettingsWindow", window=True)
# Create the window
window = cmds.window("curveSettingsWindow", title="Animator's Journey Arnold Curve Renderer", sizeable=True, widthHeight=(300, 250))
# Create a layout
layout = cmds.columnLayout(adjustableColumn=True, columnAlign="center", rowSpacing=10, parent=window)
# Add a text field to enter the shader name
shader_text_field = cmds.textFieldGrp(label="Shader Name", adjustableColumn2=1, columnAlign2=("right", "left"), parent=layout)
# Add a slider for curve width
width_slider = cmds.floatSliderGrp(label="Curve Width", field=True, minValue=0.0, maxValue=1.0, value=0.5,
adjustableColumn2=1, columnAlign2=("right", "left"), parent=layout)
# Add a checkbox for primary visibility
primary_visibility_checkbox = cmds.checkBox(label="Primary Visibility", value=True, parent=layout)
# Add a checkbox for casts shadows
casts_shadows_checkbox = cmds.checkBox(label="Casts Shadows", value=True, parent=layout)
# Add a button to apply settings
apply_button = cmds.button(label="Apply Settings", command=functools.partial(apply_button_clicked, shader_text_field, width_slider, primary_visibility_checkbox, casts_shadows_checkbox))
cmds.showWindow(window)
def apply_button_clicked(shader_text_field, width_slider, primary_visibility_checkbox, casts_shadows_checkbox, *args):
shader_name = cmds.textFieldGrp(shader_text_field, query=True, text=True)
width = cmds.floatSliderGrp(width_slider, query=True, value=True)
primary_visibility = cmds.checkBox(primary_visibility_checkbox, query=True, value=True)
casts_shadows = cmds.checkBox(casts_shadows_checkbox, query=True, value=True)
# Get the selected objects
selection = cmds.ls(selection=True)
if not selection:
print("No objects selected.")
return
# Create a placeholder shader
for obj in selection:
apply_curve_settings(obj, shader_name, width, primary_visibility, casts_shadows)
create_ui()
