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These are not used by Blender, but can be used by other software using our
configuration.
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Change to false color are based on artist feedback:
* Even 2.5 EV differences down to -10 EV.
* Even 2.167 EV differences up to +6.5 EV.
* Slightly below middle grey biased toward cyan.
* Slightly above middle grey biased toward yellow.
* Converts to nonlinear luma for more accuracy.
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Previously it was not possible to use looks on filmic log.
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* Replace Log view transform with Filmic Log.
* Remove Rec.709, DCI-P3 displays that were incomplete and outdated.
* Remove outdated RRT and Film transforms, replaced by Filmic.
* Remove camera responsive curves that don't work with HDR colors.
* Rename Default view transform to Standard.
We're breaking compatibility now for 2.80, so that we can add future
improvements on a clean config.
Part of the code was contributed by George Vogiatzis in D4782.
Differential Revision: https://developer.blender.org/D4900
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* Use simple default view transform for color pickers, as Filmic does not work
well for all types of colors. We better handle this with an option and tagging
of colors as emissive or albedo like.
* For solid/workbench we also no longer use Filmic, as there is not enough contrast
and it's not really needed since this is not physically based lighting.
* For lookdev always take into account the view transform and look. Other view
settings like exposure are only taken into account if scene lighting is used,
since these are often dependent on scene light intensity.
Fixes T61022, T57649, T59363.
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In 2d655d3 the color picker was changed to use display space HSV values.
This works ok for a simple sRGB EOTF, but fails with view transforms like
Filmic where display space V 1.0 maps to RGB 16.292.
Instead we now use the color_picking role from the OCIO config when
converting from RGB to HSV in the color picker. This role is set to sRGB
in the default OCIO config.
This color space fits the following requirements:
* It is approximately perceptually linear, so that the HSV numbers and
the HSV cube/circle have an intuitive distribution.
* It has the same gamut as the scene linear color space.
* Color picking values 0..1 map to scene linear values in the 0..1 range,
so that picked albedo values are energy conserving.
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This ignores the scene color managment view settings for solid mode and
lookdev when not using scene lights and world. The scene settings are
intended for tweaking renders and should not affect studio lighting and
matcaps.
There may be cases where a simple sRGB transform is better than Filmic
and we could add configuration for this. Not sure if it really matters
and it may be better if we just assume matcaps and studiolights are all
created for one view transform.
Differential Revision: https://developer.blender.org/D3569
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assuming sRGB
I've limited it to just the RGB<->XYZ stuff for now, correct image handling is the next step.
Reviewers: brecht, sergey
Differential Revision: https://developer.blender.org/D3478
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Please do not add useless tooltips! We have enough messages to translate
already...
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* "Filmic" and "False Color" view transforms added (sRGB display device only).
* "Very Low/Low/Base/High/Very High Contrast" looks added.
* Added filtering so that Filmic only shows look names prefixed with "Filmic - ".
Filmic Dynamic Range LUT configuration created by Troy James Sobotka with
special thanks and feedback from Guillermo, Claudio Rocha, Bassam Kurdali,
Eugenio Pignataro, Henri Hebeisen, Jason Clarke, Haarm-Peter Duiker, Thomas
Mansencal, and Timothy Lottes.
Differential Revision: https://developer.blender.org/D2659
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Previously converting from linear space to SRGB was doing rather
slow inverted 1D lookup. Adding explicit inverse LUT gives 20%
speedup of OpenGL render.
Next question is: why do we even bother with sRGB conversion here,
OpenGL is already in the proper space so in theory we can avoid
quite some color space conversions. In any case, having this case
optimized in nice anyway.
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Need to match convention and sum up to 1.0 (previous set had a minor
10^(-10) overflow) Thanks to Campbell for taking notice.
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calculation.
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* Reorder list a bit to put brands together
* Move looks menu below views
* Rename camera_response to film_response folder, to make clear that these
are photographic film types, not camera models
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This commit implement's OCIO's Looks idea which
is about applying some color correction on the
buffer before it get's affected by a display
transform.
This is mainly used to modify images in an
artistics way.
Currently we've got looks generated from film
response curves for all sorts of cameras.
Patch by both of me and Brecht.
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Also extend 3DLUT edge size to 64 (1 meg of memory) to increase
transform accuracy as well.
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- Sequencer preview was clamping float buffers
- ACES color space wasn't correct, was noticeable when
applying display processor from linear space to display.
- Extended sRGB LUT to sRGBf from nuke-default config.
Makes sequencer behave much better in sRGB space.
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to black when using GLSL display transform.
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was in svn.
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have no effect on the end result, because it is only an intermediate space and
scene_linear was already set to Linear. It does avoid some unnecessary matrix
transforms which should be a bit faster, and it makes it more clear what's
happening.
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This commit integrates support of OpenColorIO library into build systems.
It also contains C-API for OpenColorIO library which could be used by Blender.
CMake has got find rules familiar to OpenImageIO's one which makes it easier
for build system to find needed libraries and includes. Scons only could use
explicitly defined paths to libraries and includes.
C-API would be compiled and Blender would be linked against C-API and OpenColorIO
but it wouldn't affect on Blender behavior at all.
OpenColorIO could be disabled by setting up WITH_OCIO to Off in CMake and
setting WITH_BF_OCIO in Scons.
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