BuddhaShader, branch v0.0.3½-speed First steps with OpenGL: A compute shader that renders a BuddhaBrot to an SSBO. Can also save the result to PNG for future viewing pleasure. https://git.grois.info/BuddhaShader/atom/?h=v0.0.3%C2%BD-speed 2018-03-18T21:37:49Z Fix build error regarding debug log clock 2018-03-18T21:37:49Z Andreas Grois andi@grois.info 2018-03-18T21:37:49Z urn:sha1:0c7b45b4e84aa197ada7391007f7d1610c92476c Undo splitting of buffers in three. Makes buffer access much faster 2018-03-18T20:11:39Z Andreas Grois andi@grois.info 2018-03-18T20:11:39Z urn:sha1:dc193156a82a80cc8d2321cf065019035855516f Not kidding here. For the default parameters this increased the maximum pixel brightness in the image by a factor of 2.25. This has the drawback that the maximum possible image size got reduced, but hey, there's a command line switch to ignore all size limits ;-) Move totaliterations calculation to CPU. This frees 4 VGPRs. 2018-03-18T19:45:26Z Andreas Grois andi@grois.info 2018-03-18T19:45:26Z urn:sha1:db2ea861c688aadf59fc35ff6cfca69149a1a94c Now the code is back to the limit of 32 VGPRs without the need to directly operate on the state buffer. This means that now it's bound by memory access. Undo change to directly work on buffer. Causes about 30% slowdown... 2018-03-18T16:19:33Z Andreas Grois andi@grois.info 2018-03-18T16:19:33Z urn:sha1:c6ba30d76aca396ce5a3975f4625e05e8cf915ee Add option to skip short orbits. Add option to print debug output. 2018-03-18T15:24:50Z Andreas Grois andi@grois.info 2018-03-18T15:24:50Z urn:sha1:385dd0dcf8fd003db604355341b00baa1fe1c1a0 Adjust default workgroup sizes to better match recommended values. 2018-03-17T21:39:45Z Andreas Grois andi@grois.info 2018-03-17T21:39:45Z urn:sha1:f3f67518d7eb74c868b523851ec482cd2177c3ce AMD recommends a local workgroup size of 256. Remove layout specifier from struct. Seems it's not allowed after all. 2018-03-17T19:52:50Z Andreas Grois andi@grois.info 2018-03-17T19:52:50Z urn:sha1:c2018354129a4a6eff1649eaba4d99756b537ed3 Properly calculate required buffer size. I'm starting to think that std140 would have been the better alternative... 2018-03-17T19:50:04Z Andreas Grois andi@grois.info 2018-03-17T19:50:04Z urn:sha1:605c5052dd91ec99901b6254eee2914a394843d3 Fix memory allocation for state buffer. How could that ever work? 2018-03-17T18:35:55Z Andreas Grois andi@grois.info 2018-03-17T18:35:55Z urn:sha1:873409ffdc8f172fb9fe6c46b6ddbad9239cf02d Seems vec2 needs 16 bytes on nVidia... 2018-03-17T17:16:30Z Andreas Grois andi@grois.info 2018-03-17T17:16:30Z urn:sha1:e1e7d9fed39cb8fc281925960c71f7dc197e6568