Some graphical fixes, a vertex cache performance improvement and a screen clear optimization.

一些图形修复，顶点缓存的性能改进和画面清晰的优化。

youdao

Some graphical fixes, a vertex cache performance improvement and a screen clear optimization.

一些图形修复，顶点缓存的性能改进和画面清晰的优化。

youdao