Code Review Request For RT-39418: [Mac,Retina,3D] Lighting is wrong (too dark, incorrect highlight) with pixel scaling

[Chien Yang]

Hi Kevin and Jim,

Please review the proposed fix, and detail information is in the JIRA:

JIRA: https://javafx-jira.kenai.com/browse/RT-39418
Webrev: http://cr.openjdk.java.net/~ckyang/RT-39418/webrev.00/

- Chien