Solid Point Collision - Increase Point Density without increasing Mesh Density?

Hi,

Have been working with the solid point collider to wrap a mesh around some steel beams or irregular depth and spacing with a view to creating a tessellated triangular ceiling.

With a relatively low poly ceiling and no face to face collision detection I am not quite getting the result I'd like.

Has anyone found a way to specify more collision points on each mesh face without increasing mesh density.

Or alternatively could I subdivide the low poly mesh faces and then use very stiff hinges to maintain the flatness of the low poly triangles in a higher res mesh?

All advice appreciated,

John