Glass wall whiteboards are the hardest to photograph. Here's how.
Short answer
Glass wall whiteboards reflect the room on the near side and show any content written on the back through the glass. The fix: wipe the glass before the session, shoot from directly in front at a perpendicular angle, and position yourself so the room's reflection falls outside the writing zone. Turn off all lights you can on the opposite side of the glass.
## Why glass boards are uniquely difficult
Glass wall whiteboards (sometimes called glass boards or glass panels) present two specific problems regular whiteboards don't:
- Double-sided reflection. Glass reflects the room on the near side (where you're standing) and transmits light and content from the far side. If there's anything on the other side of the glass — furniture, people, whiteboard markers from previous sessions — it shows through.
- High-gloss surface. Glass is smoother than a coated whiteboard, so it's even more reflective. Light sources create distinct, high-contrast hotspots.
## Step-by-step technique
Step 1: Wipe the glass. Glass boards accumulate oil smudges and ghosted marker that a whiteboard cleaner won't remove. Use a glass cleaner (Windex-type) on the near side and wipe from top to bottom with a microfiber cloth. Content from previous sessions on the other side — if it's also glass-facing — wipe from the far side too.
Step 2: Control the far side. If the board separates two rooms, turn off or dim the lights on the far side. Less light on the other side = less visible bleed-through.
Step 3: Shoot perpendicular. Stand directly in front of the board. On a glass surface, even a slight angle creates a severe double-image effect. VisionKit can correct minor angle variation — but glass boards amplify angular distortion more than matte boards.
Step 4: Position yourself in the reflection. Look at the glass before you tap. You'll see your own reflection. Make sure your body, phone, and any bright objects around you aren't falling directly on top of written content. If they are, shift position until the reflection is in an empty area of the board.
Step 5: Turn off overhead lights that are directly between you and the glass. For a glass wall board, overhead lights create reflections that fall straight back at the lens. Switching off the lights directly above you (if controllable) and using lights to the side dramatically reduces the primary reflection.
## How BoardSnap handles glass boards
BoardSnap AI is trained on real-world whiteboard photos including glass surfaces. With good capture technique, it reads through minor glare. Severe bleed-through from the far side — where content written there appears to overlay what's on your side — does reduce accuracy. Controlling the far-side light is the most effective countermeasure.
Frequently asked
Does BoardSnap read both sides of a glass board?
BoardSnap reads the photo you give it. If content from the far side bleeds through in the image, the AI attempts to separate what's the primary surface content from the bleed-through, but severe overlap reduces accuracy. Controlling far-side lighting is the best prevention.
Should I use exposure compensation on a glass board?
Yes — if the glass is causing the camera to overexpose, dial the exposure down in the Camera app by swiping down after tapping to focus. This prevents the bright reflections from washing out the written content.
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