I'm not sure at all that now S3.com belongs to the graphic card manufacturer, http://www.s3.com/about/history.php.IP Status
Contact S3 Incorporated (http://www.s3.com) regarding any intellectual
property issues associated with implementing this extension.
WARNING: Vendors able to support S3TC texture compression in Direct3D
drivers do not necessarily have the right to use the same functionality in
OpenGL.
Is there a small howto anywhere ?
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