Official Video Walkthrough: Telegram Short #72
Watch the verified feature demonstration below to observe live interface interactions, gesture controls, and responsive UI behaviors in action.
undo 1. Memory-Efficient Vector Command Stacks & Canvas State Management
Traditional image editors bake paint strokes directly into raw raster pixel matrices, making rollbacks computationally expensive. Telegram implements a lightweight vector command tree that records each stroke as mathematical splines and coordinates.
Tapping the Undo button pops the topmost vector object from the memory stack without reallocating full-resolution texture buffers in GPU VRAM.
Stickers, text captions, and freehand paint strokes operate as isolated layers above the base image, preventing raster distortion or destructive compression artifacts.
The eraser tool selectively dissolves designated vector nodes while preserving background photographic details and surrounding typography intact.
Vector Layer Stack & Undo Buffer Simulator
checklist How to Utilize Non-Destructive Undo in Media Editor
Open Media & Tap Brush
Select any photo or video from the attachment paperclip and tap the paintbrush icon to launch the vector canvas.
Apply Strokes, Stickers & Text
Draw lines, add neon arrows, apply pixelate privacy masks, or place high-resolution vector stickers.
Tap Undo to Step Backward
Use the curved arrow icon on the bottom toolbar to remove strokes one by one in reverse chronological order, or hold down to clear canvas.
help Frequently Asked Questions & Expert Tips
question_answer Can I undo changes after sending the photo?
Once sent, the image is rendered to an output file. However, with Telegram’s Edit Message feature, you can replace the sent photo with an updated revision at any time.
question_answer Does using multiple undo operations slow down older phones?
No. Because strokes are stored as lightweight vector vectors rather than bitmap snapshots, RAM footprint remains negligible (under 2 MB).
