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VML at a glance
VML
VML emerged as a 1998 W3C submission backed by Microsoft and partners such as Autodesk, Hewlett-Packard, Macromedia, and Visio, reflecting the moment when web graphics standards were still unsettled.
SGI at a glance
SGI
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | VML | SGI |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 1990 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Silicon Graphics Inc. |
| Status | legacy | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Not supported |
When to use each format
When to use VML
- Your source file is already in VML.
- Preserve source expectations before exporting to SGI.
- VML is commonly used in vector workflows.
When to use SGI
- Your target workflow expects SGI.
- Improve delivery compatibility with SGI.
- SGI is commonly used in image workflows.
FAQs
Why convert VML to SGI?
Convert to SGI when recovering or maintaining compatibility with workstation-era graphics assets and archives.
It is useful mainly for migration, restoration, and historical graphics interoperability.
What changes when converting VML to SGI?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to SGI removes vector scaling.
What should I review after converting VML to SGI?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.