float vdsErrorTest (const vdsNode *node)

A simple vdsErrorMetric callback based on screen-space node extent

Documentation

A simple vdsErrorMetric callback based on screen-space node extent. Takes a node in the vertex tree and decides how important it is. The decision is based on the visibility and projected screen extent of the node's bounding volume
Returns:
A large number represents a large projected screen space coverage. Larger numbers are concidered more important.

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