Combining Modalities¶
XRTracker's modalities can be combined to leverage the strengths of each. The most common combinations and when to use them.
Available Combinations¶
| Combination | Use Case |
|---|---|
| Silhouette only | General-purpose, no depth sensor |
| Edge only | Industrial parts, cluttered backgrounds, no depth sensor |
| Silhouette + Depth | Best robustness for AR with depth sensor (iPhone Pro, RealSense) |
| Edge + Depth | Industrial parts with depth sensor |
Note
Silhouette and Edge are mutually exclusive — you pick one tracking method. Depth is a complementary modality that enhances either method but cannot be used alone.
Silhouette + Depth (Recommended for AR)¶
The most robust combination for mobile AR. Silhouette handles rotational tracking while depth provides strong positional accuracy.
Enable:
- Set Tracking Method to
Silhouette - Check Depth Tracking
Best for: iPhone/iPad Pro with LiDAR, Android with ToF, Intel RealSense on desktop.
Edge + Depth¶
Preferred for industrial scenarios where geometric edges are reliable and backgrounds are cluttered.
Enable:
- Set Tracking Method to
Edge - Check Depth Tracking
Best for: Factory floors, mechanical assemblies, warehouse settings.
How Modalities Interact¶
When multiple modalities are active, they work together to find the best pose:
- Each modality contributes its own measurements
- The tracker combines all information to produce the most accurate pose
- Quality is reported as the best across active modalities
Adding depth doesn't slow down contour tracking — all modalities are processed together efficiently.