Add Simple Sticker

MDL Identifier: core_definitions::add_simple_sticker

Description: A quick way for adding simple stickers to a material. The sticker is a simple dielectric and needs a mask to define its extent.

Display Name	Type	Parameter	Default	Description
Sticker color	color	diffuse_color	color(.5)	The color of the material
Roughness	float	roughness	float(0.05)	Higher roughness values lead to bigger highlights and blurry reflections
Index of Refraction	uniform float	ior	float(1.4)	Determines reflectivity
Sticker Reflectivity	float	reflectivity	float(1.0)	Additional Reflectivity control
Sticker mask	float	sticker_mask	float(0.0)	Determines extent of the sticker