I'm just curious how exactly scissor rect is used in DX9?
There is little about it in the doc.
And i know that there is a render state "D3DRS_SCISSORTESTENABLE" to be enabled if scissor rect is used.
I tried enabled it and set the rect before clear operation , it worked fine but the text is not clipped.
But if I moved the operations after the clear operation , it didn't work at all.
What's is going on under the hood??
somebody give me some tips , appreciate it !!
How exactly is scissor rect used in DX9?
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