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TXT at a glance
TXT
Plain-text files are older than most modern document ecosystems, and many later markup and structured-writing formats exist precisely because people wanted to preserve text readability while layering more structure on top.
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 | TXT | HDR |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
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| Created year | 1963 | 1989 |
| Inventor | ASCII/plain-text computing tradition | Greg Ward |
| Status | active | active |
| Primary use cases |
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| Vector scaling | Not supported | Not supported |
When to use each format
When to use TXT
- Your source file is already in TXT.
- Preserve source expectations before exporting to HDR.
- TXT is commonly used in document 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 TXT 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 TXT to HDR?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting TXT to HDR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.