Welcome to the sixth video of our Animating with Spine tutorial series! This time we cover arcs – one of your most important tools for realistic movement that is pleasing to the eye. You will use this principle in almost every animation you make. Check out the video to learn how to detect bad arcs and improve your Spine animations.
Use the provided Spine project to do the exercise in the video and hone your animation skills. Don't give up! The exercises are hard, but they pay off. Share what you did with us on the Spine forum!
We are happy to share a new Spine Tips tutorial video! This time we show how to improve your arcs and other circular motion using the graph view. In this simple but fundamental example, you’ll see how the graph visualizes the motion and how that helps us to improve our animation. The graph is an essential tool that every animator should master.
Try to follow along and create the animation yourself using the project files found in the video's description.
Whether you are new to Spine or looking to improve your skills, you should find some valuable tips here! Please let us know on the Spine forum how you liked the video and what you’d like to see next.
We've created a special version of Spineboy for this blog post: Chibi Spineboy! You can download the files to follow along here. The project can be used to more easily create your own stickers, or you create your own skeletons and animations.
Platforms like Telegram or Discord usually require your stickers to fulfill some requirements. In general, animated stickers should be short, looping animations. The sample project we provide here features a simplified skeleton with fewer body parts compared to the original Spineboy project, but many options for eyes, mouths, and emote symbols to provide a lot of variety. It also includes alternative skins for members of the Spine team. We simply couldn't help it. The rig is very similar to the one featured in the first two Helmet streams.
We followed a simple workflow when creating the animations for Chibi Spineboy. First, the character was posed as a still emoji. Next, small looping movements were added. This approach makes it extremely fast to add new animations, and also keeps the scope of the project in line with the minimalist aesthetic stickers require.
More complex animations are also great! Just note that the more and longer movement you have, the heavier the final size of your exported file might be.
You can watch the whole animation process for Chibi Spineboy in this Twitch stream.
Video must be in WEBM format encoded with the VP9 codec. Simply choosing the new WEBM export in Spine 4.1 and beyond creates a compatible file, so we don't have to worry about codecs!
One side of the sticker must be exactly 512 pixels in size, the other side can be 512 pixels or less. This can be set in Spine by choosing Fit instead of Scale and then adding 512 to both boxes that appear next to Fit.
Video duration must not exceed 3 seconds. This equals 90 frames if your timeline is set to 30 FPS (the default).
Frame rate can be up to 30 FPS. Exporting at 30 FPS produces the smoothest results. If you notice your file becomes too large you can lower the FPS a little, but it's rare for this to be necessary.
Video should be looped for optimal user experience. In our case this means that the first and last frame should match.
Video size should not exceed 256 KB. WEBM files of the required size don't usually go over this limit. If they do you can adjust the quality settings when exporting.
Video must have no audio stream. We'll just leave the audio option set to "None".
Applying all these requirements to our export settings looks like this:
In the example, a separate file is created for each animation by using the "File per animation" output type. This way, all animations can be exported at once. A little anti-aliasing is added and a transparent background is also set, which is recommended but not mandatory.
First, start a chat with the @Stickers bot and type the command /newvideo in the chat.
The bot will ask you to assign a name to the set, so reply with the name you want.
Next, it's time to actually add each sticker! This has to be done once for each individual sticker.
Locate the WEBM file for a sticker on your computer and send it to the bot. You can also use drag and drop.
Assign one or more emojis to represent the sticker. The first one you pick will be displayed in the chat preview.
Repeat the process until for the remaining WEBM files.
Once you've added all stickers, you can publish them by sending the command /publish to the bot. You will be asked if you want to assign an icon to the sticker set, which you can skip via the /skip command. Finally, the bot will ask you to provide a short name for the sticker set, after which it will give you a link to the sticker set which you can use to install the stickers.
Animated File types: APNG An APNG is an animated PNG and Spine can directly export to this format.
Max File size: 500 KB This size is strict, but it usually is enough to enable Reduce colors and then lower the number of colors to create significant smaller APNGs. If this isn't enough, lower the FPS too.
Dimensions: 320px x 320px (exact) This can be set in Spine by choosing Fit instead of Scale, setting the width and height fields of the Fit settings to 320, and checking Pad so that the output matches the size exactly.
Just like in the Telegram case, we export one file per animation and set a transparent background.
There are two requirements to be able to add stickers to a Discord server: your Discord role has to have access to edit emojis and stickers, and the Discord you want to add stickers to needs to have at least one boost. You can learn more in this Discord article on adding and managing stickers.
To add stickers to your Discord server head to the server settings:
Then pick the stickers from the server menu:
You'll be presented with an overview of the stickers requirements, and whether you can add stickers. If there are no stickers, a plus button in the lower area lets you add some.
Upload each APNG, assign an emoji and describe it. If you use simple words the sticker will be suggested when those words are typed. Finally, save your changes.
Once you are done, everyone in the server will be able to use the custom stickers!
Our Unity Timeline extension can be used to combine multiple Spine animations in Unity without writing a single line of code. Our new tutorial video shows how to start working with the extension and how to export the result to video, PNG sequences, or animated GIFs.
Did you find this video useful? Join the discussion of this post on the Spine forum!