54 Commits

Author SHA1 Message Date
a8ec7845e0 Cleanup: use "num" as a suffix in: source/blender/blenlib
Also replace "num" with:
- "number" when it's not used to denote the number of items.
- "digits" when digits in a string are being manipulated.
2022-03-30 18:01:22 +11:00
c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00
9e365069af Cleanup: move public doc-strings into headers for 'blenlib'
- Added space below non doc-string comments to make it clear
  these aren't comments for the symbols directly below them.
- Use doxy sections for some headers.
- Minor improvements to doc-strings.

Ref T92709
2021-12-09 20:01:44 +11:00
Piotr Makal
ab31c24322 BLI_rand: support for randomizing bitmaps
Add utility functions:

- BLI_bitmap_randomize
- BLI_rng_shuffle_bitmap

Part of D11685
2021-06-28 19:35:43 +10:00
6be56c13e9 Geometry Nodes: initial scattering and geometry nodes
This is the initial merge from the geometry-nodes branch.
Nodes:
* Attribute Math
* Boolean
* Edge Split
* Float Compare
* Object Info
* Point Distribute
* Point Instance
* Random Attribute
* Random Float
* Subdivision Surface
* Transform
* Triangulate

It includes the initial evaluation of geometry node groups in the Geometry Nodes modifier.

Notes on the Generic attribute access API

The API adds an indirection for attribute access. That has the following benefits:
* Most code does not have to care about how an attribute is stored internally.
  This is mainly necessary, because we have to deal with "legacy" attributes
  such as vertex weights and attributes that are embedded into other structs
  such as vertex positions.
* When reading from an attribute, we generally don't care what domain the
  attribute is stored on. So we want to abstract away the interpolation that
  that adapts attributes from one domain to another domain (this is not
  actually implemented yet).

Other possible improvements for later iterations include:
* Actually implement interpolation between domains.
* Don't use inheritance for the different attribute types. A single class for read
  access and one for write access might be enough, because we know all the ways
  in which attributes are stored internally. We don't want more different internal
  structures in the future. On the contrary, ideally we can consolidate the different
  storage formats in the future to reduce the need for this indirection.
* Remove the need for heap allocations when creating attribute accessors.

It includes commits from:
* Dalai Felinto
* Hans Goudey
* Jacques Lucke
* Léo Depoix
2020-12-02 15:38:47 +01:00
91694b9b58 Code Style: use "#pragma once" in source directory
This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.

This patch has been generated by P1561 followed by `make format`.

Differential Revision: https://developer.blender.org/D8466
2020-08-07 09:50:34 +02:00
725973485a Clang Tidy: enable readability-non-const-parameter warning
Clang Tidy reported a couple of false positives. I disabled
those `NOLINTNEXTLINE`.

Differential Revision: https://developer.blender.org/D8199
2020-07-13 11:27:09 +02:00
5f95912afc BLI: add missing include for size_t 2020-05-15 12:48:45 +02:00
68cc982dcb BLI: improve various C++ data structures
The changes come from the `functions` branch, where I'm using
these structures a lot.

This also includes a new `BLI::Optional<T>` type, which is similar
to `std::Optional<T>` which can be used when Blender starts using
C++17.
2020-02-10 14:09:01 +01:00
249f4423ee Cleanup: doxygen comments
Also correct some outdated symbol references,
add missing 'name' commands.
2019-11-25 01:51:11 +11:00
b20cefdab3 Fix T64623: Freestyle procedural noise not consistent across platforms
Use the Blender RNG instead of rand() to solve it.
2019-05-14 23:45:14 +02:00
e12c08e8d1 ClangFormat: apply to source, most of intern
Apply clang format as proposed in T53211.

For details on usage and instructions for migrating branches
without conflicts, see:

https://wiki.blender.org/wiki/Tools/ClangFormat
2019-04-17 06:21:24 +02:00
4fa904e91c Cleanup: use lowercase for dimensions in function names
Most API's already use this convention.
2019-03-20 18:25:27 +11:00
e7fd6c8f30 Cleanup: comment blocks 2019-03-19 15:17:46 +11:00
f2a21472c4 Fix T61473: Crash particle system is updating
Original and localized particle settings were sharing some
of the runtime pointers.
2019-02-18 17:00:50 +01:00
de13d0a80c doxygen: add newline after \file
While \file doesn't need an argument, it can't have another doxy
command after it.
2019-02-18 08:22:12 +11:00
eef4077f18 Cleanup: remove redundant doxygen \file argument
Move \ingroup onto same line to be more compact and
make it clear the file is in the group.
2019-02-06 15:45:22 +11:00
65ec7ec524 Cleanup: remove redundant, invalid info from headers
BF-admins agree to remove header information that isn't useful,
to reduce noise.

- BEGIN/END license blocks

  Developers should add non license comments as separate comment blocks.
  No need for separator text.

- Contributors

  This is often invalid, outdated or misleading
  especially when splitting files.

  It's more useful to git-blame to find out who has developed the code.

See P901 for script to perform these edits.
2019-02-02 01:36:28 +11:00
66da2f537a New Grease Pencil object for 2D animation
This commit merge the full development done in greasepencil-object branch and include mainly the following features.

- New grease pencil object.
- New drawing engine.
- New grease pencil modes Draw/Sculpt/Edit and Weight Paint.
- New brushes for grease pencil.
- New modifiers for grease pencil.
- New shaders FX.
- New material system (replace old palettes and colors).
- Split of annotations (old grease pencil) and new grease pencil object.
- UI adapted to blender 2.8.

You can get more info here:

https://code.blender.org/2017/12/drawing-2d-animation-in-blender-2-8/
https://code.blender.org/2018/07/grease-pencil-status-update/

This is the result of nearly two years of development and I want thanks firstly the other members of the grease pencil team: Daniel M. Lara, Matias Mendiola and Joshua Leung for their support, ideas and to keep working in the project all the time, without them this project had been impossible.

Also, I want thanks other Blender developers for their help, advices and to be there always to help me, and specially to Clément Foucault, Dalai Felinto, Pablo Vázquez and Campbell Barton.
2018-07-31 10:50:43 +02:00
8b673fc75f Cleanup: get rid of last non-thread-safe BLI_frand random generator func. 2018-06-20 11:30:25 +02:00
61d27db359 Merge branch 'master' into blender2.8 2018-06-17 16:36:30 +02:00
5513da65b2 Cleanup: trailing space for BLI 2018-06-17 16:32:54 +02:00
b236400ff5 Math: Remove unused functions which are not safe for threading
All areas are toy use "local" number generator, in order to keep
behavior predictable and threadable. This is what BLI_rng_() API
is for.

There are still lots of usages of BLI_frand(), which are to be
ported to BLI_rng_get_float(). but that is somewhat involved.

For the time being, remove unsafe API, so new areas have zero
chance using it.
2018-06-12 15:51:43 +02:00
40ad1cf0b1 BLI: sync changes from 2.8 2017-11-14 16:10:48 +11:00
660eea8cf4 BLI_rand : add BLI_halton_3D 2017-10-27 22:49:15 +02:00
47e6d53c8a BLI_rand : Add new low-discrepency sequences generator 2017-09-26 20:54:27 +02:00
dccf5afbef BLI_rand: add BLI_rng_get_char_n
Use to fill an array of bytes to random values.
2016-06-12 00:41:02 +10:00
2e72d756c4 BLI_rand: add a function returning a random point whithin given 2D triangle.
Needed by transfer data.
2015-01-09 13:03:55 +01:00
016e75ad64 Fix T42139, vertical noise stripe patterns in noise texture.
Two fixes here (only the second one is strictly needed to fix the issue,
but both make the system better).

First is introduction of a random generator array for use with threaded
systems where each thread needs to access its own number generator.
The random texture now uses this so it should not be influenced by other
random generator reseedings of the main random generator like it did
before.

Second, I reshuffled the texture code to resample the upper bits of the
random number first. According to Numerical Recipes, this is where the
most variance can be found, so by sampling those we avoid correlation
issues. Also, multiplying here is not ideal because if a pair of bits
are zero, then the whole result will also be zero.

Overall this is much more random (tm) than before, however result will
also be brighter, since we now have less black spots. Tweaking the
brightness/contrast should somewhat fix that, generally having the same
result as before is not possible anyway if we are to really fix this.

Also, seems like exposing procedural depth might be nice here since it
influences the precision of the texture lookup.
2014-10-09 15:48:52 +02:00
737cb8cf7c Use compiler attributes for more BLI libs 2014-07-17 18:58:58 +10:00
8d96ea8322 BLI_rand: add BLI_rng_get_float_unit_v2 2014-06-14 18:12:19 +10:00
0319db1063 Correct own recent changes broke release builds 2014-03-30 20:35:59 +11:00
bbfeb120fc Code cleanup: use strict flags for BLI_rand 2014-03-30 15:04:20 +11:00
faf529d036 BLI_rand: Add BLI_rng_get_float_unit_v3, was static rayshade func 2014-03-30 15:04:20 +11:00
afb4b65167 Random number generator: replace a bunch of usage of the global random number
generator with a local one. It's not thread safe and will not give repeatable
results, so in most cases it should not be used.

Also fixes #34992 where the noise texture of a displacement modifier was not
properly random in opengl animation render, because the seed got reset to a
fixed value by an unrelated function while for final render it changed each
frame.
2013-04-15 23:12:40 +00:00
101660c809 code cleanup: give rng functions BLI prefix. 2012-10-23 13:50:44 +00:00
9892736206 code cleanup: header cleanup and remove some duplicate defines. 2012-05-12 20:39:39 +00:00
7bbf4b7831 style cleanup
- spelling - turns out we had tessellation spelt wrong all over.
- use \directive for doxy (not @directive)
- remove BLI_sparsemap.h - was from bmesh merge IIRC but entire file commented and not used.
2012-03-02 16:05:54 +00:00
2b7ca2304a unify include guard defines, __$FILENAME__
without the underscores these clogged up the namespace for autocompleation which was annoying.
2012-02-17 18:59:41 +00:00
4a04f72069 remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n 2011-10-23 17:52:20 +00:00
Nathan Letwory
b97ad119b9 doxygen: add blenlib under core as module. 2011-02-18 13:58:08 +00:00
9a85013692 Merge various small changes from render branch:
* Division by zero fix for TNT SVD code.
* Sound fix, in case ffmpeg decode fails, don't use the samples.
* Fix for incorrect bounds of transformed objects in new raytracing code.
* Gave memory arena's a name used for allocations for easier memory
  usage debugging.
* Dupligroup no_draw option was using layers but not restrict view/render
  setting. (not a bugfix exactly but would do display list context switching
  while drawing for no reason).
* Fix objects instanced on hair particles not giving consistent results
  when the object is transformed.
* New math functions: madd_v4_v4fl, len_squared_v3v3, interp_v4_v4v4v4,
  mul_v4_m4v4, SH and form factor functions, box_minmax_bounds_m4.
* mul_m4_m4m4 and mul_m3_m3m3 now accept the same pointers for multiple
  arguments.
* endjob callback for WM jobs system.
* Geometry node uv/color layer now has search list/autocomplete.
* Various small buildsystem tweaks, not strictly needed yet in trunk.
2010-04-15 10:28:32 +00:00
081c1205a3 correct fsf address 2010-02-12 13:34:04 +00:00
d5a890c078 a) New unified effector system by Janne (jahka) + Me (genscher): particle and cloth/sb don't use different systems anymore. b) cloth wind corrected for new system c) Wind has noise option now d) @ Bjornmose: since the old factors are gone SB doesn't need to divide by 1000 etc. anymore. I didn't want to touch your code - you might like to take a look at it :) 2008-08-18 11:09:27 +00:00
Chris Want
5d0a207ecb Patch from GSR that a) fixes a whole bunch of GPL/BL license
blocks that were previously missed; and b) greatly increase my
ohloh stats!
2008-04-16 22:40:48 +00:00
32a8b4f8e6 Particles
=========

- Fix crash in particle transform with the particle system not editable.
- Particle child distribution and caching is now multithreaded.
- Child particles now have a separate Render Amount next to the existing
  Amount. The render amount particles are now only distributed and cached
  at render time, which should make editing with child particles faster.

- Two new options for diffuse strand shading:
	- Surface Diffuse: computes the strand normal taking the normal at
	  the surface into account.
	- Blending Distance: the distance in Blender units over which to
	  blend in the normal at the surface.
- Special strand rendering for more memory efficient and faster hair and
  grass. This is a work in progress, and has a number of known issues,
  don't report bugs to me for this feature yet.

More info:
http://www.blender.org/development/current-projects/changes-since-244/particles/
2007-12-04 13:57:28 +00:00
8d940dfafe Random() issues with rendering...
- AO and soft shadow AreaLight tables were generated without fixed seed,
  causing animations to give unwanted amounts of noise.
- Made sure these tables now are calculated before render, with fixed seed
- Then found out the BLI_rand() has very bad seeding... it showed up as
  patterns. After some experimenting, found a nice method using noise.c
  hash tables. For compatibility with old code, named it BLI_srandom() to
  use this next to the BLI_srand(). This follows libc rand() and random()
  naming convention.
- Then of course threading should work... so made a BLI_thread_rand version
  of the calls. Now supports up to 16 threads, comments added in .h and .c

Result is stable animation render with AO and soft shadow. But, please
test and feedback!
2005-08-25 13:11:04 +00:00
3dcc653365 - mixed up RNG type definition 2005-07-25 20:56:48 +00:00
40a5ed791d - added RNG abstract random object rng_{new/free/seed/get{Int,Double,Float}}
to avoid use of global generator. at the moment the renderer owns the
   number generator and this is important for retaining render consistency.
2005-07-25 20:33:10 +00:00
ba28fc489a - added an array shuffling function to BLI_rand 2005-07-20 03:33:44 +00:00