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6995b4d8d9
blender/intern/cycles/util
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Lukas Stockner 6995b4d8d9 Cycles: Adding Hilbert Spiral as a tile order for rendering 
This patch adds the "Hilbert Spiral", a custom-designed continuous space-filling curve, as a tile order for rendering in Cycles.
It essentially works by dividing the tiles into tile blocks which are processed in a spiral outwards from the center. Inside each
block, the tiles are processed in a regular Hilbert curve pattern. By rotating that pattern according to the spiral direction,
a continuous curve is obtained, which helps with cache coherency and therefore rendering speed.

The curve is a compromise between the faster-rendering Bottom-to-Top etc. orders and the Center order, which is a bit slower,
but starts with the more important areas. The Hilbert Spiral also starts in the center (unless huge tiles are used) and is still
marginally slower than Bottom-to-Top, but noticeably faster than Center.

Reviewers: sergey, #cycles, dingto

Reviewed By: #cycles, dingto

Subscribers: iscream, gregzaal, sergey, mib2berlin

Differential Revision: https://developer.blender.org/D1166
2016-01-10 00:13:53 +01:00
..
CMakeLists.txt Cycles: Avoid recursion when doing constant fold 2015-12-02 16:19:39 +05:00
util_algorithm.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_aligned_malloc.cpp Cycles: Code cleanup, spaces around keywords 2015-03-28 00:15:15 +05:00
util_aligned_malloc.h Cycles: Use size_t for aligned allocator 2015-02-19 22:19:29 +05:00
util_args.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_atomic.h Cycles: Code cleanup, spaces around keyword and brace 2015-06-01 19:49:52 +05:00
util_boundbox.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_cache.cpp Cleanup: Remove support for Boost filesystem 2. 2015-02-18 13:49:49 +01:00
util_cache.h Cycles: Fix crashes when loading cache created with pre-leaf split builds 2015-04-29 15:48:49 +05:00
util_color.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_debug.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_foreach.h Optionally use c++11 stuff instead of boost in cycles where possible. We do and continue to depend on boost though 2015-03-29 22:12:40 +02:00
util_function.h Cycles: Correction to previous commit: non-msvc compilers also should use nullptr 2015-03-30 15:17:09 +05:00
util_guarded_allocator.cpp Cycles: Implement guarded allocator for STL classes 2015-02-15 02:01:48 +05:00
util_guarded_allocator.h Cycles: Minor code style cleanup, whitesaces 2015-06-28 18:15:25 +02:00
util_half.h Cycles: fix compilation on 32-bit Windows for half-floats 2015-05-10 19:06:43 +00:00
util_hash.h Cycles: Code cleanup, spaces around keywords 2015-03-28 00:15:15 +05:00
util_image.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_list.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_logging.cpp Cycles: Be ready for gflags namespace auto-detect 2015-01-01 01:31:08 +05:00
util_logging.h Cycles: Log whch optimizations are used for CPU kernels 2016-01-06 20:25:19 +05:00
util_map.h Optionally use c++11 stuff instead of boost in cycles where possible. We do and continue to depend on boost though 2015-03-29 22:12:40 +02:00
util_math_cdf.cpp Cycles: Support user-defined shutter curve 2015-10-28 02:43:06 +05:00
util_math_cdf.h Cycles: Fix compilation error with MSVC 2015-10-28 17:33:31 +05:00
util_math_fast.h Cleanup: warnings & spelling 2015-12-02 13:15:52 +11:00
util_math.h Cycles: Adding Hilbert Spiral as a tile order for rendering 2016-01-10 00:13:53 +01:00
util_md5.cpp Cycles: add utility function to calculate MD5 hash of a given string 2015-11-21 22:07:59 +05:00
util_md5.h Cycles: add utility function to calculate MD5 hash of a given string 2015-11-21 22:07:59 +05:00
util_opengl.h Cycles: Post-reintegration tweaks to ensure things do compile 2015-01-01 01:31:08 +05:00
util_optimization.h Cleanup: Avoid some warnings on OS X with clang and update comment. 2015-10-26 11:52:24 +01:00
util_param.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_path.cpp Cleanup: Remove support for Boost filesystem 2. 2015-02-18 13:49:49 +01:00
util_path.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_progress.h Cycles: Report total and render time to the log 2015-06-17 14:07:51 +02:00
util_queue.h Cycles: Avoid recursion when doing constant fold 2015-12-02 16:19:39 +05:00
util_set.h Optionally use c++11 stuff instead of boost in cycles where possible. We do and continue to depend on boost though 2015-03-29 22:12:40 +02:00
util_simd.cpp Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_simd.h Cycles: Resolve compilation error of avx2 kernel with certain compilers 2015-07-23 11:48:54 +02:00
util_sseb.h Cycles: add better specializations for SSE shuffle function and few more wrappers. 2015-03-07 17:25:21 +00:00
util_ssef.h Cycles: add better specializations for SSE shuffle function and few more wrappers. 2015-03-07 17:25:21 +00:00
util_ssei.h Cycles: add better specializations for SSE shuffle function and few more wrappers. 2015-03-07 17:25:21 +00:00
util_stats.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_string.cpp Cycles: Cleanup, use "string_" prefix for functions in util_string 2016-01-07 11:47:58 +05:00
util_string.h Cycles: Cleanup, use "string_" prefix for functions in util_string 2016-01-07 11:47:58 +05:00
util_system.cpp Cycles: Remove TM / R and whitespace from OpenCL device names. 2015-05-21 23:43:18 +02:00
util_system.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_task.cpp Cycles: Code cleanup, prepare for strict C++ flags 2015-03-27 18:23:31 +05:00
util_task.h Optionally use c++11 stuff instead of boost in cycles where possible. We do and continue to depend on boost though 2015-03-29 22:12:40 +02:00
util_thread.h Optionally use c++11 stuff instead of boost in cycles where possible. We do and continue to depend on boost though 2015-03-29 22:12:40 +02:00
util_time.cpp Cycles: Code cleanup, spaces around keywords 2015-03-28 00:15:15 +05:00
util_time.h Cycles: Code cleanup: use scoped timer to measure parts of SVM compiler 2015-12-30 19:35:21 +05:00
util_transform.cpp Cycles: Make transform from viewplane a generic utility function 2015-04-10 15:53:14 +05:00
util_transform.h Cycles: Fix compilation error of CUDA kernel after recent decomposition changes 2015-10-09 17:53:29 +05:00
util_types.h Cycles: Add implementation of clip extension mode 2015-07-28 14:36:08 +02:00
util_vector.h Cycles: Gracefully handle out-of-memory happening in device vector 2015-10-11 19:41:59 +05:00
util_view.cpp Cycles: Number keys 0-3 can be used in interactive mode now to set max bounces. 2015-06-01 19:56:36 +05:00
util_view.h Cleanup: Fix Cycles Apache header. 2014-12-25 02:50:24 +01:00
util_xml.h Cycles: Fix compilation error when OIIO is compiled with external PugiXML parser 2015-01-01 01:31:07 +05:00