Using the same code build on Windows and Linux got different result.

[sherrychen32]

I add a new shape called heightfield2 into pbrt, and compile it. Then i run the pbrt on my own scene files.
But i got different results on Windows and Linux. As running on Windows, the result images just looks fine. As running on Linux, it can still compile and didn't get any error message. But the result image is broken. I'm really confused.

The environment of Windows is Win10, AMD A8-3850 APU with Radeon(tm) HD Graphics 2.90GHz, 64bits. And i use Microsoft Visual Studio Professional 2015 Version 14.0.25431.01 to compile it.
The environment of Linux is Debian 64bit, Intel Xeon E5345.