Add keys, move the light source in the scene, and change the color of the light source modify teapot specular reflection coefficient, making it appear bright light source adding a spot light in the scene, the irradiated region just covered teapot, and can be adjusted change the spot light illumination angle and orientation.

代码\a3.cpp
....\a3.dsp
....\a3.dsw
....\a3.plg
....\a3.sdf
....\a3.vcxproj
....\a3.vcxproj.filters
....\Debug\a3.exe
....\.....\a3.ilk
....\.....\a3.lastbuildstate
....\.....\a3.log
....\.....\a3.obj
....\.....\a3.pdb
....\.....\CL.read.1.tlog
....\.....\CL.write.1.tlog
....\.....\link-cvtres.read.1.tlog
....\.....\link-cvtres.write.1.tlog
....\.....\link-rc.read.1.tlog
....\.....\link-rc.write.1.tlog
....\.....\link.read.1.tlog
....\.....\link.write.1.tlog
....\.....\vc110.idb
....\.....\vc110.pdb
....\UpgradeLog.htm
....\UpgradeLog.XML
....\_UpgradeReport_Files\UpgradeReport.css
....\....................\UpgradeReport.xslt
....\....................\UpgradeReport_Error.png
....\....................\UpgradeReport_Information.png
....\....................\UpgradeReport_Success.png
....\....................\UpgradeReport_Warning.png
....\Backup
....\Debug
....\_UpgradeReport_Files
代码

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