This applet helps the user combine concepts in additive and subtractive color mixing through a scenario that includes lights, paints and filters. Users can directly observe how various colored lights, paints, and filters contribute additively as well as subtractively to produce a single color to be viewed by the applet's virtual eye.
Undergraduates or high school students. Appropriate for both computer graphics programming courses and art/design courses.
The user clicks on the lightbulb, paint can, and colored filter icons located in the toolbar on the left side to add them to the lab area. Clicking on an object in the scene removes it from the scene, while clicking on a projector specifies it as the recipient of the next lightbulb that is selected. Clicking on the "Animate Beams" button activates the projectors and the user can directly observe how the selected items affect the color of the light beams as they travel through the scene.