Extend Renderer class to support Drawing on each frame to get render performance from Vortice.

[somenhlt1]

Hi,
First of all, thank you for building such an amazing project. I just wanted to ask if you can guide me through how to draw any graphic such as rectangle, dots, line or image, blur effect directly on PresentInternal method where it can upload a list of rectangles and use the engine to draw it directly on each frame to get the real time performance. I wanted to build a redaction app where we can see the video and review.

[SuRGeoNix]

Hi @somenhlt1 and thanks! The problem adding this feature (also requested in the past) is that currently the renderer 'blits' (draws) directly to the output without using a (eg. RGBA/BGRA) texture and that's for performance. In your requirement you will need an intermediate texture to draw/edit your own content (probably with Direct2D). I will consider adding it though (maybe next update).

[SuRGeoNix]

Hi @somenhlt1,

I've added support for Direct 2D drawing for now. Check the sample/test project and let me know if that helps.

I will also check to add support for 3D / image drawing.