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  Offscreen slow with the DirectX version  (Read 709 times)
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Offline javazoid

Junior Member




Where's Flender?


« Posted 2004-09-06 09:22:53 »

During my navigation of the java3d sources I noticed the IMPRESSIVE (a nightmare) copyDataToSurfacexxx() function of  D3dUtil.cpp used to copy from a direct3d surface to the offscreen buffer.

I suppose that the above function is the bottleneck of Offscreen rendering with Java3D/directx.
The OGL implementation uses readPixels() and therefore it's probably faster due to the ogl implementation.

Why don't reimplement it by using specific hardware-accelerated copy functions of DirectX ?

I found something interesting here: http://www.geocities.com/foetsch/d3d8screenshot/d3d8screenshot.htm

Mik

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