Houdini Python - 02 Basic Light Setup

In this video we will be making a basic script of light-setup with the help of python in houdini.

Will go to the topics like,

1. what is node ?

2. making different types of nodes,

3. understanding the parameter and way to know them,

4. changing those parameters values,

5. use case of functions,

6. making connections and layout the nodes.

# CODE FOR REFERENCE
###################################

import hou
# creating light function with attributes
def create_houdini_light( light_name, r, g, b, rx, ry, rz, main_subnet, xform):
	light main_subnet.createNode('hlight: : 2.0', light_name)
	light.parm('light_colorr').set(r)
	light.parm('light_colorg').set(g)
	light.parm('light_colorb').set(b)
	light.parm('rx').set(rx)
	light.parm('ry').set(ry) 
	light.parm('rz').set(rz)
	light.parm('light_type').set(7)
	light.setInput(0, xform)

object_node = hou.node('/obj')
lightSetup_node = object_node.createNode('subnet', 'lightSetup') xform_node = lightSetup_node.createNode('null', 'main_xform')

# create lights
key_light = create_houdini_light('key', 1.0, 0.65, 0.3, -120, 0, 0, lightSetup_node, xform_node) 
fill light = create_houdini_light('fill', 0.25, 0.325, 0.5, -40, 50, 0, lightSetup_node, xform_node) 
rim_light = create_houdini_light ('rim', 0.175, 0.5, 0.25, 0, -80, 0, lightSetup_node, xform_node)

LightSetup_node.layoutChildren()

Hope this won't be overkilling.

Thanks!