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AVI at a glance
AVI
AVI grew from Microsoft's RIFF multimedia architecture, which is why its structure reflects chunked stream handling and older desktop-video assumptions.
HDR at a glance
HDR
HDR raster formats became important in rendering and lighting workflows before consumer-facing HDR delivery stories matured in mainstream media formats.
Format comparison
| Feature | AVI | HDR |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1992 | 1989 |
| Inventor | Microsoft | Greg Ward |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Supported |
| Streaming ready | Supported | Not supported |
When to use each format
When to use AVI
- Your source file is already in AVI.
- Preserve source expectations before exporting to HDR.
- AVI is commonly used in video workflows.
When to use HDR
- Your target workflow expects HDR.
- Improve delivery compatibility with HDR.
- HDR is commonly used in image workflows.
FAQs
Why convert AVI to HDR?
Convert to HDR when you need scene-referred high-dynamic-range image data for rendering, environment lighting, or technical HDR processing.
It is useful for lighting assets and specialized imaging pipelines.
What changes when converting AVI to HDR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to HDR adds HDR content. Moving to HDR removes streaming delivery.
What should I review after converting AVI to HDR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.