Updated to v1.45

added handmade contoures to strengthen the 3d effect.

improved, adjusted the backgrounds.

added camera lightsource

decreased levels-triangles ambient

increased camera fov

added specular to triangle plates

changed knotpoints color in testmode also:

reactivated distances display from one cursor position to the next in editormode.

the truck isn´t exploding that easy anymore when colliding with ropes or knotpoints.

a fix to prevent from building the same girder a 2nd time.

changed start sound.