System Information
Operating system and graphics card
win 7 and default intel graphic
Blender Version
Broken: (example: 2.69.7 4b206af, see splash screen)
unrealistic light from very2 oldest to very2 latest blender engine
Short description of error
lamp bias/volumetric problem, not sure ,...i this problem ,will show u how blender break the rule of physics,
Exact steps for others to reproduce the error
download this file will bring you to the right answer>>