SmallptCPU vs SmallptGPU
Written by David Bucciarelli
SmallptGPU is a small and simple demo written in OpenCL in order to test the performance of this new standard. It is based on Kevin Beason's Smallpt available at http://www.kevinbeason.com/smallpt/. SmallptGPU has been written using the ATI OpenCL SDK beta4 on Linux but it should work on any platform/implementation (i.e. NVIDIA). Some discussion about this little toy can be found at Luxrender's forum
A video of SmallptGPU is available here: http://vimeo.com/8013005 (the old low quality version is available here: http://vimeo.com/8013005)
Key bindings
'p' - save image.ppm
ESC - exit
Arrow keys - rotate camera left/right/up/down
'a' and 'd' - move camera left and right
'w' and 's' - move camera forward and backward
'r' and 'f' - move camera up and down
PageUp and PageDown - move camera target up and down
' ' - refresh the window
'm' - starts to record a movie in binary format (it can be decoded with the decodemovie utility)
'l' - enable/disable indirect diffuse path (available only on CPU version because a bug of ATI's compiler)
'+' and '-' - to select next/previous object
'2', '3', '4', '5', '6', '8', '9' - to move selected object
下载： smallptgpu-v1.3.tgz (includes sources, Linux 64bit binaries and Windows 32bit binaries)
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