Learn about animation, the Curve Editor, and Tangents in VRED.
Video captions: Open the Scene Graph via the Quick Access bar. Set, respectively, at frame 0 and frame 70, a keyframe with the selected rotationY parameter of your geometry. For more information on the setting of keyframes, please view the tutorial, Keyframes and Curves, in the Animation section. Alter the value of the rotation along the Y-axis at frame 70 to -70. Select the first keyframe at frame 0 and select the tangent. Via the tangent, you can control the progression of the curve. Tangents can be freely modified. Every point in the curve describes an assignment of a rotation value along the Y-axis and the point in time. Select both keyframes of the curve, and select, under Tangents, Constant. Constant creates a step-like animation curve. The curve segment is flat, horizontal, so value changes at the key without gradation. Repeat the process with the selection, Flat. Flat sets in and out tangents of the key horizontal with a slope of 0 degrees. For example, when a ball reaches its ascent, it hangs in the air for a brief time before starting its descent. You can create this effect by using a flat tangent. Last, please choose Following, Following specifies a flow tangent to create an animation curve that is smooth between the key before and the key after selected key. The tangents of the curve are co-linear, meaning they are both at the same angle.