Pixel density
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Pixel density in Virtual Reality
Virtual reality head-mounted displays require high pixel density because the screen is very close to the user's eyes. Higher PPI leads to sharper images with more details. An HMD with low pixel density can cause blurring of words and objects, presence of pixelation and the "screen door effect". PPI is an important parameter when considering HMDs.
As pixel density increases, lower persistence is needed to avoid blurring.
GameWorks VR's multi-res shading is able to render different parts of the image with different resolutions to better match the pixel density of a warped image.
Pixel density of various HMDs
Virtual Reality
| Devices | Pixel Density |
|---|---|
| ANTVR | |
| Acer Windows Mixed Reality Headset | 706 ppi |
| Apple Vision Pro | |
| Daydream View | |
| FOVE | 506 PPI |
| Figment VR | Depends on the smartphone |
| Google Cardboard | Depends on the smartphone |
| HP Reverb G2 | |
| HTC Vive | 455.63 PPI per eye |
| HTC Vive Developer Editions | ?? |
| HTC Vive Pro | 615 PPI per eye |
| Impression Pi | 400+ PPI |
| LG 360 VR | |
| Lenovo Windows Holographic HMD | |
| Meta Quest 2 | ???.?? PPI per eye |
| OSVR HDK1 | 401 PPI |
| OSVR HDK2 | 441 PPI |
| Oculus Quest | |
| Oculus Rift | 455.63 PPI per eye |
| Oculus Rift DK1 | 215 PPI |
| Oculus Rift DK2 | 386 PPI |
| Oculus Rift S | |
| Oculus Santa Cruz | |
| Pico G2 | |
| Pico Neo 2 | |
| Pico Neo 3 Pro | |
| Pico Neo CV | |
| Pimax 8K | 2 * 3840x2160 16.6 million total pixels |
| PlayStation VR | 386 PPI |
| Project Alloy | |
| Samsung Gear VR (2015/2016) | 518 PPI - 577 PPI |
| Samsung Gear VR Innovator Edition | 515 PPI 557 PPI |
| StarVR | 484 PPI |
| Sulon Q | |
| Valve Index | |
| Wearality Sky |
Augmented Reality
| Devices | Pixel Density |
|---|---|
| Apple Vision Pro | |
| Atheer AiR | |
| CastAR | ?? |
| Google Glass | |
| Impression Pi | 400+ PPI |
| Magic Leap One | |
| Meta 2 | |
| Microsoft HoloLens | Holographic density: over 2.5k radiants (light points per radian) |
| Microsoft HoloLens 2 | |
| R-7 Smartglasses | |
| SmartEyeglass Developer Edition SED-E1 | ?? |
| Snap Spectacles 3 | |
| Sulon Q |
