Answer: Nodes and manipulators have simplified how computer artists execute interactivity by providing a visual and intuitive way to manipulate and control various elements of a scene or animation, allowing for quick experimentation and real-time adjustments. This has made it easier for artists to focus on creativity rather than technical details and has paved the way for new forms of digital art and entertainment.
Explanation: Nodes and manipulators are powerful tools that allow computer artists to create complex scenes or animations with a high degree of interactivity. Nodes are building blocks that represent various functions or processes, such as transformations, materials, or lighting, that can be connected together in a graph-like structure to create chains of operations. Manipulators are graphical interfaces that allow artists to interactively control various attributes of objects or scenes, such as position, rotation, and scale.