About blendingExample

Learning Objectives

This example demonstrates how to set the blend mode and the available blend modes for usage.

In the code, pay attention to:

• Use ofEnableBlendMode() to set the blend mode.
• The enumerators for the different blend mode types including OF_BLENDMODE_ALPHA, OF_BLENDMODE_ADD, OF_BLENDMODE_MULTIPLY,OF_BLENDMODE_SUBTRACT and OF_BLENDMODE_SCREEN

Expected Behavior

When launching this application you will see:

• A dark gray background
• Instructional text for how to alter the blend mode based on keyboard input
• Display text to identify which blend mode is in current use
• A circle that is filled with an undeniably awesome rainbow gradient

When keys 1, 2, 3,4 or 5 are pressed :

• the blend mode associated with that key will be applied
• the display text will identify which blend mode is currently being used.

When the mouse is moved:

• The rainbow gradient circle will follow the position of the mouse

Instructions for use:

• Press 1 to switch to a blend mode of Alpha
• Press 2 to switch to a blend mode of Additive
• Press 3 to switch to a blend mode of Multiply
• Press 4 to switch to a blend mode of Subtract
• Press 5 to switch to a blend mode of Screen

Other classes used in this file

This Example uses no other classes.