4D Volume Rendering - Nvidia

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Motivation• Large 4D data from– Numerical simulations– Acquisition devices –scanners etc• Powerful graphics– Increasing graphics capabilities per GPU• 5800 has 4GB graphics memory, capable of 256^4 8-bit volumes!– Ease in aggregating Multi-GPUs• Hardware - Quadroplex SVS• Software API’s - WGL_Affinity
Outline• Volume rendering techniques– Object-order vs image-order• Extending to 4D – Single-GPU• Multi-GPU approaches– Spatial/time partitioning• Stereo
Page 1: 4D Volume RenderingShalini Venkatar
Page 5 and 6: Transfer function lookupTexture 1//
Page 7: CUDA RaycastingInitdim3 m_blockSize
Page 10 and 11: Multi-pass raycasting - OpenGLFBOFr
Page 12 and 13: Pass 2- Draw on-screen quadInvoke r
Page 14 and 15: 4D - Caching all time steps• When
Page 16 and 17: Texture Streaming• When graphics
Page 18 and 19: CPU Asynchronous streaming• Non C
Page 20 and 21: PBO Implementation- DrawDraw - app-
Page 22 and 23: GPU Async - ImplementationMain draw
Page 24 and 25: Multi-GPU Distributed RenderingSort
Page 26 and 27: Stereo in Volume Rendering• Provi
Page 28: Demo and Q&Ashaliniv@nvidia.comSeis

4D Volume Rendering - Nvidia

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