Blend Space Visualizer

Module: Animation · Category: BlendSpace · Tool ID: BlendSpaceVisualizer

Loads any BlendSpace or BlendSpace1D asset and lays out its sample points so you can see at a glance which grid cells have animations, where the coverage gaps are, and whether the referenced animation sequences play nicely together (matched durations, expected frame counts).

Tool open with a 2D BlendSpace loaded, sample list populated, axis labels and ranges visible, summary line showing empty-sample count.

When to use it

• Building a locomotion blend space from scratch: confirming every speed/direction cell is covered before you ship
• Inheriting a character’s locomotion setup and wanting to see what’s actually wired up
• Debugging a “twitchy” or “snappy” blend: usually a missing sample or a mismatched duration
• After importing a new animation set: quick sanity-check that all references resolve

What it isn’t for

• Don’t use this to author blend spaces. Sample placement happens in UE’s BlendSpace editor; this tool is read-only.
• Don’t use it for AnimBP debugging. Use Animation Auditor for state machines and transitions.

Opening the tool

1. Open the EQLabs Hub and search for Blend Space (or browse to Animation → BlendSpace).
2. Click the tool card.
3. Drop a BlendSpace asset into the picker field.

Interface tour

A scrollable single-panel layout. Top to bottom:

Section	What it does
BlendSpace Asset picker	Load any UBlendSpace or UBlendSpace1D
Info block	Axis X/Y labels and ranges, grid divisions, 1D/2D detection
Stats block	Total samples, empty samples, avg/min/max duration, max duration spread between samples
Issues block	Warnings — empty grid cells, mismatched durations, missing animation references
Sample list	Per-sample row: Position, animation name, duration, frame count, gap/outlier flags

What gets flagged

Flag	Meaning
Empty Sample	Grid cell has a position but no animation reference
Duration Outlier	Animation duration is far from the average — usually a sign of an accidentally-imported wrong-length clip
Missing Anim	Sample’s referenced AnimSequence couldn’t be resolved

List view showing a populated 2D blend space, one row flagged as duration outlier (color-coded), tooltip visible.

Workflow

Step 1: Load the BlendSpace

Drop your locomotion or facial blend space into the picker. The Info, Stats, and Sample list populate automatically.

Step 2: Read the Info block

Confirm Axis X/Y labels and ranges match what you intended. A common mistake is shipping a 1D speed blend that’s authored as 2D with one axis at a single value.

Step 3: Walk the Stats line

Empty Samples should be 0 for a fully-covered grid. Max Duration Spread (the difference between the longest and shortest sample) tells you how synchronized the clips are — wide spreads mean the blend will desync.

Step 4: Audit individual rows

Single-click pings the AnimSequence in the Content Browser. Double-click opens the sequence’s editor for inspection.

Settings reference

This tool has no persisted settings — it operates on whatever BlendSpace you load.

Output

• In-panel display only. No edits to the BlendSpace asset.
• No clipboard / CSV export in V1 — copy info manually if you need it elsewhere

Tips and gotchas

• A “missing animation” doesn’t always mean broken. The BlendSpace may reference an asset you haven’t loaded yet. Check the Content Browser before deleting anything.
• Duration outliers usually point to imported-with-wrong-FPS clips. Check the source AnimSequence’s frame rate.
• 1D BlendSpaces show one axis range as zero-to-zero. The tool detects this and labels it bIs1D = true internally. The Info block will show only one meaningful axis.
• Empty samples are sometimes intentional. Corner cases (e.g., “moving backward at full speed”) might genuinely have no animation. Read the warning, decide.

Related tools

• Animation Auditor — when the blend space references animations with bad compression
• Montage Section Builder — for montage-driven blends
• AnimBP analysis. Animation Auditor’s Blueprint tab covers the state machine layer above the BlendSpace.