Commit Graph

25 Commits

Author SHA1 Message Date
3316853323 Cleanup: conform headers to have license first
Also remove doxy comments for licenses and add missing GPL header.
2019-02-18 08:22:11 +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  This is often invalid, outdated or misleading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
d7f55c4ff5 Cleanup: comment block tabs 2018-11-14 17:10:56 +11:00
b372766816 Cleanup: trailing newlines 2018-06-29 09:23:51 +02:00
a262ea8c47 Cleanup: trailing space for compositor 2018-06-17 17:05:29 +02:00
1c870f46e7 Compositor: Cleanup, don't shortcut float values
Use 0.0f instead of 0.f and so on.
2016-02-14 10:12:45 +01:00
3ec81b814c Fix T45617: Map UV node produces image artifacts
Basically filtering was happening twice, first time by applying weights of EWA
filter itself and then by applying subpixel offset while reading pixel values.
2015-08-27 18:50:40 +02:00
2ada3512a2 Compositor: Code cleanup, prepare for strict C++ flags 2015-03-27 18:23:31 +05:00
35d3b6316b D627: Memory usage optimization for the compositor.
The compostor used a fixed size of 4 floats to hold pixel data. this
patch will select size of a pixel based on its type.
It uses 1 float for Value, 3 float for vector and 4 floats for color
data types.

When benchmarking on shots (opening shot of caminandes) we get a
reduction of memory of 30% and a tiny speedup as less data
transformations needs to take place (but these are negligable.

More information of the patch can be found on
https://developer.blender.org/D627 and
http://wiki.blender.org/index.php/Dev:Ref/Proposals/Compositor2014_p1.1_TD

Developers: jbakker & mdewanchand
Thanks for Sergey for his indept review.
2015-01-19 18:17:50 +01:00
82c90a44c2 Fix T41921: MapUV node alpha setting broken.
The UV values includes the image width/height now. To restore the
previous method as close as possible (even though it is not documented
anywhere how this is supposed to work), we have to ignore this scaling.
2014-09-23 16:59:12 +02:00
caf5d90fb0 Fix T39189: Node editor Map Uv requires an scale node to work.
This is a regression caused by rB67134a7bf689279785e2e40b29cd24243813998b
The UV coordinates read from the UV input must be scaled by the Image
input size instead of the UV input size.

Also now this node uses the UV input resolution instead of the Image
resolution, since this is what determines the available resolution. The
image is EWA-sampled anyway, it's resolution does not have a direct
impact.
2014-03-15 10:28:11 +01:00
67134a7bf6 Fix for EWA (elliptical weighted average) sampling in the compositor.
EWA sampling is designed for downsampling images, i.e. scaling down the size of
input image pixels, which happens regularly in compositing. While the standard
sampling methods (linear, cubic) work reasonably well for linear
transformations, they don't yield good results in non-linear cases like
perspective projection or arbitrary displacement. EWA sampling is comparable to
mipmapping, but avoids problems with discontinuities.

To work correctly the EWA algorithm needs partial derivatives of the mapping
functions which convert output pixel coordinates back into the input image
space (2x2 Jacobian matrix). With these derivatives the EWA algorithm
projects ellipses into the input space and accumulates colors over their
area. This calculation was not done correctly in the compositor, only the
derivatives du/dx and dv/dy were calculation, basically this means it only
worked for non-rotated input images.

The patch introduces full derivative calculations du/dx, du/dy, dv/dx, dv/dy for
the 3 nodes which use EWA sampling currently: PlaneTrackWarp, MapUV and
Displace. In addition the calculation of ellipsis area and axis-aligned
bounding boxes has been fixed.

For the MapUV and Displace nodes the derivatives have to be estimated by
evaluating the UV/displacement inputs with 1-pixel offsets, which can still have
problems on discontinuities and sub-pixel variations. These potential problems
can only be alleviated by more radical design changes in the compositor
functions, which are out of scope for now. Basically the values passed to the
UV/Displacement inputs would need to be associated with their 1st order
derivatives, which requires a general approach to derivatives in all nodes.
2013-12-04 16:05:56 +01:00
c566e408e4 Cleanup: Renamed compositor executePixel functions and their 'read' wrappers in SocketReader.
Distinguish the 3 different methods for acquiring pixel color values (executePixel, executePixelSampled, executePixelFiltered).
This makes it easier to keep track of the different sampling methods (and works nicer with IDEs that do code parsing).

Differential Revision: http://developer.blender.org/D7
2013-11-19 11:06:16 +01:00
36c530dec9 Remove ifdef-ed code, it's still in SVn anyway. 2013-08-16 13:58:39 +00:00
a59777c33f Tweaks to MapUV and PlaneTrack nodes to make results less doggy
This disables crazy adaptive sampling happening in diagonal direction.

This still gives some doggyness, but it's much less dramatic now,
and behavior is pretty damn the same as EWA filtering when rendering
textures with Blender Internal.
2013-08-16 13:58:34 +00:00
e795b8410b * fix for regression test [compo_map_uv.blend]
the wrapping was resized to fit the uv map. this step was wrong and has
been deleted.
2012-10-02 11:37:15 +00:00
add9aea573 compositor - EWA filter was blurring too much by default, this caused the displace node to blur the image when no displacement was applied, making images fuzzy, the original C code has an interpolation option.
Added this option back and use for displace and UV composite nodes.
2012-08-16 10:13:04 +00:00
94a3945cf9 code cleanup: compositor - define size for executePixel function output float array 2012-08-10 14:07:24 +00:00
9987a8fca7 Removed parameter from executePixel and initializeTileData. 2012-07-13 12:24:42 +00:00
6a1d82490e use m_ prefix for compositor class members (all compositor operations). 2012-06-26 01:22:05 +00:00
570cc70772 style cleanup: compositor operations 2012-06-15 18:42:03 +00:00
8e7d7d5ea5 code cleanup: reduce float/double promotion 2012-06-09 19:57:14 +00:00
7862b2fa13 style cleanup: compositor, pointer syntax, function brace placement, line length 2012-05-17 22:55:28 +00:00
979f6bab9c style cleanup: braces, compositor 2012-05-17 13:44:15 +00:00
044e818cf8 ____
`````|````` | |        |                        ..'''' 
     |      | |        |______               .''       
     |      | |        |                  ..'          
     |      | |_______ |___________ ....''             
               merge to TRUNK!

 * The old compositor is still available (Debug Menu: 200)

This commit was brought to you by:

Developers:
 * Monique Dewanchand
 * Jeroen Bakker
 * Dalai Felinto
 * Lukas Tönne

Review:
 * Brecht van Lommel

Testers:
 * Nate Wiebe
 * Wolfgang Faehnle
 * Carlo Andreacchio
 * Daniel Salazar
 * Artur Mag
 * Christian Krupa
 * Francesco Siddi
 * Dan McGrath
 * Bassam Kurdali

But mostly by the community:
Gold:

    Joshua Faulkner
    Michael Tiemann
    Francesco Paglia
    Blender Guru
    Blender Developers Fund

Silver:

    Pablo Vazquez
    Joel Heethaar
    Amrein Olivier
    Ilias Karasavvidis
    Thomas Kumlehn
    Sebastian Koenig
    Hannu Hoffrén
    Benjamin Dansie
    Fred M'ule
    Michel Vilain
    Bradley Cathey
    Gianmichele Mariani
    Gottfried Hofmann
    Bjørnar Frøyse
    Valentijn Bruning
    Paul Holmes
    Clemens Rudolph
    Juris Graphix
    David Strebel
    Ronan Zeegers
    François Tarlier
    Felipe Andres Esquivel Reed
    Olaf Beckman
    Jesus Alberto Olmos Linares
    Kajimba
    Maria Figueiredo
    Alexandr Galperin
    Francesco Siddi
    Julio Iglesias Lopez
    Kjartan Tysdal
    Thomas Torfs
    Film Works
    Teruyuki Nakamura
    Roger Luethi
    Benoit Bolsee
    Stefan Abrahamsen
    Andreas Mattijat
    Xavier Bouchoux
    Blender 3D Graphics and Animation
    Henk Vostermans
    Daniel Blanco Delgado
    BlenderDay/2011
    Bradley Cathey
    Matthieu Dupont de Dinechin
    Gianmichele Mariani
    Jérôme Scaillet

Bronze (Ivo Grigull, Dylan Urquidi, Philippe Derungs, Phil Beauchamp, Bruce Parrott, Mathieu Quiblier, Daniel Martinez, Leandro Inocencio, Lluc Romaní Brasó, 
Jonathan Williamson, Michael Ehlen, Karlis Stigis, Dreamsteep, Martin Lindelöf, Filippo Saracino, Douwe van der Veen, Olli Äkräs, Bruno D'Arcangeli, 
Francisco Sedrez Warmling, Watchmike.ca, peter lener, Matteo Novellino, Martin Kirsch, Austars Schnore, KC Elliott, Massimiliano Puliero, Karl Stein, 
Wood Design Studios, Omer Khan, Jyrki Kanto, Michał Krupa, Lars Brubaker, Neil Richmond, Adam Kalisz, Robert Garlington, Ian Wilson, Carlo Andreacchio, 
Jeremias Boos, Robert Holcomb, Gabriel Zöller, Robert Cude, Natibel de Leon, Nathan Turnage, Nicolas Vergnes, Philipp Kleinhenz, Norman Hartig, Louis Kreusel, 
Christopher Taylor, Giovanni Remondini, Daniel Rentzsch, Nico Partipilo, Thomas Ventresco, Johannes Schwarz, Александр Коротеев, Brendon Harvey, 
Marcelo G. Malheiros, Marius Giurgi, Richard Burns, Perttu Iso-Metsälä, Steve Bazin, Radoslav Borisov, Yoshiyuki Shida, Julien Guigner, Andrew Hunter, 
Philipp Oeser, Daniel Thul, Thobias Johansson, Mauro Bonecchi, Georg Piorczynski, Sebastian Michailidis, L M Weedy, Gen X, Stefan Hinze, Nicolò Zubbini, 
Erik Pusch, Rob Scott, Florian Koch, Charles Razack, Adrian Baker, Oliver Villar Diz, David Revoy, Julio Iglesias Lopez, Coen Spoor, Carlos Folch, 
Joseph Christie, Victor Hernández García, David Mcsween, James Finnerty, Cory Kruckenberg, Giacomo Graziosi, Olivier Saraja, Lars Brubaker, Eric Hudson, 
Johannes Schwarz, David Elguea, Marcus Schulderinsky, Karel De Bruijn, Lucas van Wijngaarden, Stefano Ciarrocchi, Mehmet Eribol, Thomas Berglund, Zuofei Song, 
Dylan Urquidi )
2012-05-17 12:49:33 +00:00