3D Design & Animation · Guide
How to animate in Blender
Set a keyframe with I, move the playhead, change something, set another. That is animation. Here is the rest: the graph editor, easing, and rendering it without pain.
The Nextversity team3D Design & Animation schoolUpdated August 10, 20265 min read
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The short answer
- Select an object and set the playhead to frame 1.
- Hover in the viewport and press I, then choose Location (or Rotation, Scale, or all three).
- Move the playhead to frame 40.
- Move the object.
- Press I again.
Press play. It moves. Everything else in Blender animation is a refinement of that loop.
The parts of the interface you need
Timeline (bottom): the playhead, frame range and playback controls.
Dope Sheet: every keyframe as a dot. Best for retiming: select keyframes and drag them to change when things happen without changing what happens.
Graph Editor: curves showing how each property changes over time. This is where animation stops looking robotic.
Switch between them from the editor type dropdown in the corner of any panel, or use the Animation workspace tab at the top.
Easing, the thing that matters most
Default keyframes in Blender use Bezier interpolation, which already eases. It is worth understanding and controlling anyway, because timing is what animation actually is.
In the Graph Editor, select your keyframes and press T to choose an interpolation type:
- Constant: snaps between values. Useful for mechanical or stop-motion effects.
- Linear: even speed throughout. Correct for machinery and conveyor belts, wrong for almost everything else.
- Bezier: eases in and out. The default and usually right.
Then shape the curve handles. A curve that starts steep and flattens gives something that launches and settles. That is what makes motion read as physical.
Nothing in the real world starts and stops instantly. Animation that does looks cheap, and fixing it takes about four seconds per keyframe.
The twelve principles, briefly
Traditional animation principles apply completely to 3D. The three worth knowing on day one:
Timing and spacing. How long something takes, and how it is distributed. Frames close together read as slow, frames far apart as fast.
Anticipation. A small movement in the opposite direction before the main action. A character crouches before jumping. Almost everything looks better with a little.
Follow through and overlap. Parts of an object continue after the main mass stops, and not everything arrives at once. This single idea is the difference between stiff and alive.
Rendering an animation without pain
Two settings people get wrong and regret.
Render to an image sequence, not a video file. In Output Properties, set the file format to PNG and give it a folder. If a render crashes at frame 800 of 900, you keep 799 frames. A video file gives you nothing.
Set the frame rate before you start, and match whatever the footage or destination needs. 24 fps is standard for film-like work.
Assemble the frames afterwards in Blender's own video sequencer or in an editor such as DaVinci Resolve.
What to animate first
A bouncing ball. The traditional first exercise for good reason: it teaches timing, spacing, squash and anticipation in about twenty keyframes.
A camera move. Animate a camera around a still model. Teaches easing and framing, and produces something presentable immediately.
A simple mechanical loop. Gears, a pendulum, a piston. Satisfying and forgiving.
Save character animation until after rigging, which is its own discipline. The character modeling course covers building something worth rigging, and there is a starter guide.
What you need in place first
Animation sits on top of the fundamentals. If your model, materials and lighting are not working, animating them just produces a moving version of the same problem.
Get comfortable with the Blender basics first. The official Blender manual has a full animation section, and Blender Studio publishes real production files that show how professionals structure this work.
Where to learn it
The Blender fundamentals certificate covers the groundwork, and the 3D environment design and character modeling courses build on it.
One subscription opens the whole 3D Design & Animation school.
Press I. Move the playhead. Press I again. Then spend your time on the timing.
Questions people ask
How do I add a keyframe in Blender?
Select an object, hover in the viewport and press I, then choose what to record: location, rotation, scale or a combination. Move the playhead, change the object, and press I again.
What is the graph editor for?
Shaping how a property changes between keyframes. It is where you control acceleration and deceleration, which is what makes motion look convincing rather than mechanical.
How do I render an animation in Blender?
Set the frame range and output path, choose PNG image sequence rather than a video file, then Render, Render Animation. Assemble the frames into a video afterwards.
Why should I render an image sequence instead of a video?
If a render crashes at frame 800 of 900, an image sequence keeps the 799 frames you already have. A video file gives you nothing recoverable.
Do I need to learn rigging to animate?
Not for object animation, cameras or motion graphics. Rigging is only needed for characters and anything that bends, and it is a separate skill worth learning after the basics.