Blender | Trying a UV Sprite Countdown Animation
- Blender
What I Actually Made
This is the kind of countdown animation you often see.
I’ll animate it by shifting the UV of a sprite sheet.
Explanation
1｜Create the Asset
Create an image with a list of text evenly arranged vertically, as shown above.
Then export it as a .png.
- Font: Digital Numbers
2｜Adjust the Plane
□ 1｜Add and Rotate It
shift + ar + x + -90
□ 2｜Match the Aspect Ratio
This time it’s 205 * 303, so multiply x by *2.05 and y by *3.30.
□ 3｜Apply the Transform
3｜Add the Image
4｜UV Editing
Adjust the UV from UV Editing at the top.
※ UV: texture coordinates (U is the same as X, V is the same as Y).
Switch to Edit Mode and shift the two bottom vertices so they nearly line up.
5｜Material Settings
Overview
value
Here, divide the frame rate’s progress value by our frame rate (24) so it works out to 1 second = 24 frames.
Formula: #frame / (frame rate * seconds)
#frame / (24 * 1)
- For 10 seconds:
#frame / 240 - For 6 seconds:
#frame / 144 - For 6 seconds:
#frame / 168(when going 0–6)
となります。
Floor
This converts a Float to an Int.
In other words, it removes the decimal point.
Modulo
Using the remainder, we get 0, 1, 2, 3 … 9, 0, 1, …
This lets it loop.
Multiply
- -1.0: used to shift upward along UV.y.
- 0.1: multiply by 0.1 to match the UV range.
This lets us animate it using only the material.
Finally
This time I animated the UV sprite using a Step-based approach.
If you’d prefer a Slide-based approach instead of Step, you can change it with the following adjustments.
- Change the image range to 0–0 (add a 0 after the 9).
- Remove Floor.
- Adjust the value of the first Multiply (around -0.91?).
Now you can enjoy a good countdown life in Blender.
