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PMD in het kort
PMD
The .pmd extension appeared in Sony's prosumer and professional recording device output alongside other Sony-proprietary formats like MQV, serving as a companion metadata or media descriptor file.
PFM Raw in het kort
PFM Raw
PFM persists from the era when HDR imaging, rendering research, and tone-mapping workflows needed straightforward file carriers for floating-point image data long before mainstream consumer HDR delivery formats matured.
Formaatvergelijking
| Kenmerk | PMD | PFM Raw |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 1998 |
| Inventor | Sony | PBRT / Paul Debevec community |
| Status | legacy | active |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Camera raw data | Niet ondersteund | Niet ondersteund |
| HDR support | Niet ondersteund | Ondersteund |
| Streaming ready | Ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use PMD
- Your source file is already in PMD.
- Preserve source expectations before exporting to PFM Raw.
- PMD is commonly used in video workflows.
When to use PFM Raw
- Your target workflow expects PFM Raw.
- Improve delivery compatibility with PFM Raw.
- PFM Raw is commonly used in image workflows.
Veelgestelde vragen
Why convert PMD to PFM Raw?
Convert to PFM raw when HDR rendering, tone-mapping, or scientific-imaging workflows need floating-point pixel values to survive intact between tools.
It is especially useful as an intermediate format for graphics research, physically based rendering, and analytical image-processing pipelines that operate on scene-referred data.
What changes when converting PMD to PFM Raw?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PFM Raw adds HDR content. Moving to PFM Raw removes streaming delivery.
What should I review after converting PMD to PFM Raw?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.