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VDA in sintesi
VDA
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.
EXR in sintesi
EXR
OpenEXR came from film-production needs at ILM and then evolved into an open industry format that spread across rendering, compositing, and broader high-end image pipelines.
Confronto tra formati
| Caratteristica | VDA | EXR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1987 | 2003 |
| Inventor | Truevision | Industrial Light & Magic |
| Status | active | active |
| Transparency | Non supportato | Non supportato |
| Animation | Non supportato | Non supportato |
| Primary use cases |
|
|
| Layer support | Non supportato | Non supportato |
| Vector scaling | Non supportato | Non supportato |
| Camera raw data | Non supportato | Non supportato |
| HDR support | Non supportato | Supportato |
| Streaming ready | Non supportato | Non supportato |
Quando usare ciascun formato
When to use VDA
- Your source file is already in VDA.
- Preserve source expectations before exporting to EXR.
- VDA is commonly used in image workflows.
When to use EXR
- Your target workflow expects EXR.
- Improve delivery compatibility with EXR.
- EXR is commonly used in image workflows.
Domande frequenti
Why convert VDA to EXR?
Convert to EXR when the image needs high dynamic range, floating-point precision, render passes, or linear-light compositing.
It is ideal for CGI, VFX, and advanced HDR production pipelines.
What changes when converting VDA to EXR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to EXR adds HDR content.
What should I review after converting VDA to EXR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.