**System Information**
Windows 8.1 PRO 64-bit
Intel Xeon E3 1230 V2
NVidia GeForce 660 driver version 347.25
8GB RAM
also confirmed on
Windows 7 Home Premium
Intel Core i5 430M
ATI Radeon 5650
4GB RAM
**Blender Version**
Broken: checked 2.73a, 2.72, 2.71
**Short description of error**
Weird/bugged behaviour of lighting when using multiple spotlights. I can use some amount of spotlights without problems, but reaching some number causes glitches, and using even more makes all non shadeless meshes black. Glitches seemed like spotlight had assigned texture on them. Those two machines needed different amount of lamps to cause this problems.
**Exact steps for others to reproduce the error**
{F141173}
Scene contains plane with simple texture and row of spotlights. GLSL enabled. To reproduce bug:
1. Copy lamps (one by one or with whole rows).
2. If the bug will trigger, you will notice at some point that lapms in 1st row are broken (for me it was lamp #32).
3. Copying even more lamps can cause more glitched lapms, at some point scene is going black.