Age | Commit message (Collapse) | Author |
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This reverts commit a93a9fb09bcfd6211f063255ccb11cfc15e013d1.
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Fixed some really obvious errors with CUDA sampling, and moved the
coordinates to index calculation back into kernel, saving a small
perecentage of time.
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1. OpenCL and CUDA support (mostly untested).
2. Change name of offsets to grid_info since it needs to keep track of
other info as well.
3. Several speed and memory optimizations.
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Sparse grids originally padded out an image to dimensions divisible by
TILE_SIZE, which resulted in many empty voxels in large volumes. Now,
border tiles are taken into account when calculating voxel indexes.
Aside from that, made some other minor fixes throughout the files.
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and optimize tile copying during grid generation.
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Sparse grids now use their normal types instead of a specific struct.
Also added support for tricubic interpolation of sparse grids for CPU
rendering.
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Also made some minor operator additions/changes.
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1. Supports all data types (or at least the ones enumerated in
ImageDataType).
2. Will tile all volume attributes.
3. Changed method of activating tiling to a bool member of Image.
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This commit contains the minimum to make clang build/work with blender, asan and ninja build support is forthcoming
Things to note:
1) Builds and runs, and is able to pass all tests (except for the freestyle_stroke_material.blend test which was broken at that time for all platforms by the looks of it)
2) It's slightly faster than msvc when using cycles. (time in seconds, on an i7-3370)
victor_cpu
msvc:3099.51
clang:2796.43
pavillon_barcelona_cpu
msvc:1872.05
clang:1827.72
koro_cpu
msvc:1097.58
clang:1006.51
fishy_cat_cpu
msvc:815.37
clang:722.2
classroom_cpu
msvc:1705.39
clang:1575.43
bmw27_cpu
msvc:552.38
clang:561.53
barbershop_interior_cpu
msvc:2134.93
clang:1922.33
3) clang on windows uses a drop in replacement for the Microsoft cl.exe (takes some of the Microsoft parameters, but not all, and takes some of the clang parameters but not all) and uses ms headers + libraries + linker, so you still need visual studio installed and will use our existing vc14 svn libs.
4) X64 only currently, X86 builds but crashes on startup.
5) Tested with llvm/clang 6.0.0
6) Requires visual studio integration, available at https://github.com/LazyDodo/llvm-vs2017-integration
7) The Microsoft compiler spawns a few copies of cl in parallel to get faster build times, clang doesn't, so the build time is 3-4x slower than with msvc.
8) No openmp support yet. Have not looked at this much, the binary distribution of clang doesn't seem to include it on windows.
9) No ASAN support yet, some of the sanitizers can be made to work, but it was decided to leave support out of this commit.
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D3304
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This patch adds support for IES files, a file format that is commonly used to store the directional intensity distribution of light sources.
The new IES node is supposed to be plugged into the Strength input of the Emission node of the lamp.
Since people generating IES files do not really seem to care about the standard, the parser is flexible enough to accept all test files I have tried.
Some common weirdnesses are distributing values over multiple lines that should go into one line, using commas instead of spaces as delimiters and adding various useless stuff at the end of the file.
The user interface of the node is similar to the script node, the user can either select an internal Text or load a file.
Internally, IES files are handled similar to Image textures: They are stored in slots by the LightManager and each unique IES is assigned to one slot.
The local coordinate system of the lamp is used, so that the direction of the light can be changed. For UI reasons, it's usually best to add an area light,
rotate it and then change its type, since especially the point light does not immediately show its local coordinate system in the viewport.
Reviewers: #cycles, dingto, sergey, brecht
Reviewed By: #cycles, dingto, brecht
Subscribers: OgDEV, crazyrobinhood, secundar, cardboard, pisuke, intrah, swerner, micah_denn, harvester, gottfried, disnel, campbellbarton, duarteframos, Lapineige, brecht, juicyfruit, dingto, marek, rickyblender, bliblubli, lockal, sergey
Differential Revision: https://developer.blender.org/D1543
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Turns out that atan2f was already defined for OpenCL.
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The GPU kernel needs to use atomics for accumulation since all offsets are processed in
parallel, but on CPUs that's not the case, so we can disable them there for a considerable speedup.
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The Math node currently has the normal atan() function, but for
actual angles this is fairly useless without additional nodes to handle the signs.
Since the node has two inputs anyways, it only makes sense to add an arctan2 option.
Reviewers: sergey, brecht
Differential Revision: https://developer.blender.org/D3430
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Thanks to Thomas Krebs for identifying the problem and solution.
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Accidentally checked the wrong variable in fa01a1738bd1e3a6750ff.
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Hainan was missing from the list of GCN 1 cards.
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Differential Revision: https://developer.blender.org/D3109
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Roughness baking previously defaulted to 1.0 for all diffuse materials,
now we also bake roughness values of Oren-Nayer and Principled Diffuse.
Differential Revision: https://developer.blender.org/D3115
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Use C++11 threads when available, and native critical section on Windows.
Later on we can remove pthread code when C+11 becomes required.
Differential Revision: https://developer.blender.org/D3116
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This is currently unused code, but causes gcc-8 to fail.
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Random numbers for step offset were correlated, now use stratified samples
which reduces noise as well for some types of volumes, mainly procedural
ones where the step size is bigger than the volume features.
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With better directory layout and more proper include
statements we can avoid several local modifications,
such as changing config.h for Windows Glog and the
ones related on pass-through statements in logging
headers in Glog.
This commit also makes unused functions not-a-warning
for external code.
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Increasing the samplig dimensions like this is not optimal, I'm looking
into some deeper changes to reuse the random number and change the RR
probabilities, but this should fix the bug for now.
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Original patch by Guillaume, modifications by Brecht.
Differential Revision: https://developer.blender.org/D3102
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changes.
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This was already done for the Principled BSDF to be compatible with typical
baked roughness maps in PBR workflows.
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Meshes without vertex normals were not handled correctly.
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