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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.
VST at a glance
VST
The Truevision line grew out of EPICenter-era PC graphics boards, and several board names ended up surviving as filename extensions even when the underlying raster structure stayed close to the wider TGA family.
Format comparison
| Feature | HDR | VST |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1989 | 1987 |
| Inventor | Greg Ward | Truevision |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use HDR
- Your source file is already in HDR.
- Preserve source expectations before exporting to VST.
- HDR is commonly used in image workflows.
When to use VST
- Your target workflow expects VST.
- Improve delivery compatibility with VST.
- VST is commonly used in image workflows.
FAQs
Why convert HDR to VST?
Convert to VST only when preserving or recovering early Truevision graphics assets in their original form, or when bridging those files into a contemporary raster format for access and restoration.
What changes when converting HDR to VST?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to VST removes HDR content.
What should I review after converting HDR to VST?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.