FAQ/Nvidia Bug2D

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When moving a Tracker pattern, only a black-image for the zoomed in tracker pattern is visible.

The black tracker zoom problem is an NVidia driver bug. For zoomed views, images are always uploaded as 8bit textures. When the image isn't 8bit it must convert the data and that exhibits the driver issue.

We have reported this to NVidia, and appears to be fixed as of revision 162.18 and later.

New for Fusion 5.2: Setting the environment variable FUSION_TEXTURE_CONVERT to true will cause Fusion to do the texture conversions itself, bypassing this driver bug.

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