[burovalex]

Однажды набрёл на команду в блитс1.98, честно - лень было проверять, но помоему есть стандартное решение.

MeshCullBox mesh,x#,y#,z#,width#,height#,depth#
Parameters mesh - mesh handle
x# - x position of far bottom left corner of bounding box
y# - y position of far bottom left corner of bounding box
z# - z position of far bottom left corner of bounding box
width# - width of bounding box (x distance)
height# - height of bounding box (y distance)
depth# - depth of bounding box (z distance)

Description This command allows the adjustment of the culling box used by the Blitz3D renderer when deciding if the mesh is outside the view of a camera.

The culling box of a mesh is automatically calculated, however in some instances an animated mesh may stretch beyond this region resulting in it visually popping out of view incorrectly. The MeshCullBox command allows a mesh culling box to be manually adjusted to correct this problem.