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EXR at a glance
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.
CUR at a glance
CUR
These formats reflect how desktop operating systems built their own graphics-resource conventions for cursors, icons, and device-independent drawing.
Format comparison
| Feature | EXR | CUR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2003 | 1990 |
| Inventor | Industrial Light & Magic | Microsoft / Windows ecosystem |
| Status | active | legacy |
| 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 EXR
- Your source file is already in EXR.
- Preserve source expectations before exporting to CUR.
- EXR is commonly used in image workflows.
When to use CUR
- Your target workflow expects CUR.
- Improve delivery compatibility with CUR.
- CUR is commonly used in image workflows.
FAQs
Why convert EXR to CUR?
Convert to CUR when preparing or preserving cursor assets for Windows applications, themes, or interface restoration.
It is useful when pointer hotspot behavior must survive alongside the bitmap itself.
What changes when converting EXR to CUR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to CUR removes HDR content.
What should I review after converting EXR to CUR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.