Drawing per-pixel in DirectX

nint22 · 2007-11-01T14:42:19

I would never post here unless I could not find some kind of similar question and its answer. I have looked around (Web, forum and articles) and have not been able to find anything on this subject so any help is greatly appreciated. From what I understand, with DirectX 9 it is not possible to call any functions to draw per-pixel directly to the screen. By draw I mean any type of per-pixel function (something such as DrawLine() or DrawSquare(), etc). What I would like to do is access the screen's memory so that I can draw out manually in 2D. After a bit of research, I understand I have to create an off-screen texture (A DirectX surface object), access that memory, draw to it's memory manually and then call DirectX APIs to draw on-screen. Is this correct? All I am asking is in general how would one do it (draw per-pixel)? If its close to the above idea, are there any documents on this or should I look into the DirectX MSDN docs? Names of functions you recommend is very helpful, I would be glad to look anything up! Just drop off an idea. Thank you all for the great community and the help!

Graphics and GPU Programming Programming

Started by nint22 October 31, 2007 10:06 AM

10 comments, last by mg_mchenry 16 years, 5 months ago

nint22

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November 01, 2007 02:40 PM

Success! Using the technique you have described, I got it to work! The only issue now is to figure out how this per-pixel memory mapping works ;) This shouldn't be that hard now... Thank you!