Troy Sobotka (sobotka)
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May 20 2007, 5:54 AM (599 w, 4 d)

Recent Activity

Wed, Nov 7

Troy Sobotka (sobotka) added a comment to T57649: View Transform and Look settings are ignored in LookDev mode.

We want working display modes to be always clearly shaded regardless of the artistic choices for the final render.

Wed, Nov 7, 12:54 AM · BF Blender: 2.8

Tue, Nov 6

Troy Sobotka (sobotka) updated subscribers of T56055: Color discrepancy in highlights between the 3D viewport render and the Offline Render under certain view-transforms.

This is an easy fix I believe in the broken GPU allocation.

Tue, Nov 6, 7:20 PM · BF Blender

Oct 13 2018

Troy Sobotka (sobotka) added a comment to T56986: Filmic profile can use another looks.

Highlight compression is the distance between the peak of the linear section of the curve and the terminating value. It's probably something that loosely controls the shape of the curve or the range of values.

Oct 13 2018, 1:18 AM · BF Blender
Troy Sobotka (sobotka) updated subscribers of T56986: Filmic profile can use another looks.

I think the Looks implementation is a bit in need of an update for sure. @Brecht Van Lommel (brecht) wisely implemented some rudimentary filtering, which would be likely more ideal via OCIO's families perhaps.

Oct 13 2018, 12:45 AM · BF Blender
Troy Sobotka (sobotka) added a comment to T56986: Filmic profile can use another looks.

Not sure here, but Gamma can be used in place of contrast when it comes to Filmic but maybe it only affects the midtones.

Oct 13 2018, 12:05 AM · BF Blender

Sep 25 2018

Troy Sobotka (sobotka) added a comment to rBb8c9df6f2158: Compositor: Added Weighted Standard Curve evaluation.

This appears still in master.

Sep 25 2018, 6:01 PM

Sep 4 2018

Troy Sobotka (sobotka) updated subscribers of T35050: Scale and Transform nodes don't interpolate when scaling images down.

@Jeroen Bakker (jbakker) any chance we can revisit this and implement the cubic prefilter approach? It is likely one of the best in breed for pixel manipulations given it doesn't overshoot nor undershoot, and delivers stable math on the output.

Sep 4 2018, 2:32 AM · BF Blender

Aug 26 2018

Troy Sobotka (sobotka) added a comment to rBb8c9df6f2158: Compositor: Added Weighted Standard Curve evaluation.

Shorter term solution should be:

  • Replace drop down with an OCIO enumeration of available transforms.
  • Run the curve interpolated values through the selected transform as a to_reference, and use accordingly.
Aug 26 2018, 6:39 PM
Troy Sobotka (sobotka) raised a concern with rBb8c9df6f2158: Compositor: Added Weighted Standard Curve evaluation.

Having done more research on this strange looking bit of code, it would seem a poorly researched implementation that derives from some other software. In particular, this poorly researched offering is what ended up with the weighting put into Natron, unsurprisingly:

Aug 26 2018, 6:31 PM

Aug 25 2018

Troy Sobotka (sobotka) added a comment to rBb8c9df6f2158: Compositor: Added Weighted Standard Curve evaluation.

Can you explain what this is doing Jeroen?

Aug 25 2018, 4:13 AM

Aug 4 2018

Troy Sobotka (sobotka) added a comment to T54943: Blender 2.8 Defaults.

Any chance of changing the cancerous format known as PNG to OpenEXR half with DWA for default? PNG compounds the accumulating alpha problems, as well as makes things very challenging moving forwards with proper scene referred streamlining.

Aug 4 2018, 9:23 PM · BF Blender: 2.8, User Interface, Code Quest

Jun 16 2018

Troy Sobotka (sobotka) added a comment to rB3ee606621cf5: Cycles: Query XYZ to/from Scene Linear conversion from OCIO instead of assuming….

For future reference for the XYZ function matching:

Jun 16 2018, 10:12 PM

May 12 2018

Troy Sobotka (sobotka) created T55040: Blur Node Breaks on High Scene Referred Values.
May 12 2018, 6:46 PM · BF Blender, Compositing

May 5 2018

Troy Sobotka (sobotka) added a comment to rBa2b05accea6e: Eevee: Fix vertex color being in srgb space..

Brecht, you keep explaining to someone that understands colour mechanics better than most on this site, that it will make things worse. This is false. The situation is already dire, and you folks keep resisting against the glaringly obvious problems.

May 5 2018, 6:44 PM
Troy Sobotka (sobotka) added a comment to rBa2b05accea6e: Eevee: Fix vertex color being in srgb space..

What part are you not comprehending here exactly?

May 5 2018, 6:44 AM

May 4 2018

Troy Sobotka (sobotka) added a comment to rBa2b05accea6e: Eevee: Fix vertex color being in srgb space..

We know that the problem with Cycles and every broken area of Blender proper is the worthless convention.

May 4 2018, 5:12 PM
Troy Sobotka (sobotka) added a comment to D1973: Cycles: Use proper XYZ <-> Scene Linear conversion instead of assuming sRGB.
May 4 2018, 5:09 PM
Troy Sobotka (sobotka) added a comment to rBa2b05accea6e: Eevee: Fix vertex color being in srgb space..

Don't assume sRGB transfer function everywhere. It is 2018.

May 4 2018, 4:46 AM

May 2 2018

Troy Sobotka (sobotka) added a comment to T54920: Documentation: Color Management - formula formatting misleading / wrong.

The correct formula for calculating scene referred exposure adjustments is:

May 2 2018, 4:39 AM · Documentation

Apr 30 2018

Troy Sobotka (sobotka) added a comment to D2984: Add Cubic B-Spline with Prefilter Algorithm.

The coefficients are derived by looping through the entire horizontal and vertical rows and columns of data.

Apr 30 2018, 5:16 PM · Compositing, BF Blender

Apr 29 2018

Troy Sobotka (sobotka) added a comment to D2984: Add Cubic B-Spline with Prefilter Algorithm.

The sampling algorithm and implementation is to be formulated in a terms that does not need require the whole buffer.

Apr 29 2018, 8:48 PM · Compositing, BF Blender
Troy Sobotka (sobotka) added a comment to D2984: Add Cubic B-Spline with Prefilter Algorithm.

You must not duplicate whole buffer, limit it to the tile only.

Apr 29 2018, 5:31 PM · Compositing, BF Blender

Apr 19 2018

Troy Sobotka (sobotka) added a comment to rB51b796ff1528: Remove Blender Internal and legacy viewport from Blender 2.8..

What a classy gesture on Brecht's part! Props Ton. *clap clap*.

Apr 19 2018, 8:24 PM

Apr 18 2018

Troy Sobotka (sobotka) added a comment to T54551: Color Picker in Texture Nodes defaults to first view transform.

This is a different issue regarding transformation order, but alas.

Apr 18 2018, 5:03 PM · BF Blender

Apr 9 2018

Troy Sobotka (sobotka) created T54551: Color Picker in Texture Nodes defaults to first view transform.
Apr 9 2018, 5:21 AM · BF Blender

Jan 9 2018

Troy Sobotka (sobotka) added a comment to D2984: Add Cubic B-Spline with Prefilter Algorithm.

If you can't tell the difference, it may not be working correctly. Should be as clearly apparent as in https://youtu.be/nfhTET86kdE

Jan 9 2018, 7:18 AM · Compositing, BF Blender

Jan 2 2018

Troy Sobotka (sobotka) added a comment to rB9b66a320bf06: Eevee: Fix luma calculation for lamp fresnel..

Chatted briefly in IRC.

Jan 2 2018, 4:56 PM

Dec 31 2017

Troy Sobotka (sobotka) added a comment to D2982: Fix T47212: Use proper coefficients for Luminance Matte Node.

How about we just close this and rename the node to "Doesn't do what the node label is supposed to do" node, then we won't need to commit the three line patch.

Dec 31 2017, 8:46 PM · Compositing, BF Blender
Troy Sobotka (sobotka) added a comment to rB9b66a320bf06: Eevee: Fix luma calculation for lamp fresnel..

This should honour the reference colour space primaries, which I am assuming 0.6, 0.3, 0.1 are attempting to provide some sort of random coefficient weights?

Dec 31 2017, 2:06 AM

Dec 9 2017

Rainer Trummer (aliasguru) awarded T53471: blender_icons_update.py causes build segfault a Like token.
Dec 9 2017, 7:50 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T53516: Inkscape broke our Teddy bear, Toys and UI Icons - How to fix the mess?.

T53471 has the issue and solution. Use width and height instead of DPI setting to render.

Dec 9 2017, 6:25 PM · User Interface, BF Blender
Troy Sobotka (sobotka) added a comment to T53471: blender_icons_update.py causes build segfault.

https://hastebin.com/ekihitudoc.diff

Dec 9 2017, 6:24 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T53471: blender_icons_update.py causes build segfault.

Hard coding the pix_width and pix_height solves this if and only if you clean out the prior dot dat files for some reason.

Dec 9 2017, 6:23 PM · BF Blender

Dec 5 2017

Troy Sobotka (sobotka) added a comment to T53471: blender_icons_update.py causes build segfault.

I suspect it is the DPI difference and that somewhere Blender is using that DPI to calculate the canvas size?

Dec 5 2017, 4:08 PM · BF Blender
Troy Sobotka (sobotka) created T53471: blender_icons_update.py causes build segfault.
Dec 5 2017, 8:02 AM · BF Blender

Nov 30 2017

Troy Sobotka (sobotka) added a comment to rB4b4702ab8af6: Sequencer: add many more color blend modes, and a new color mix strip..

These are all display referred formulas. Entirely broken on scene referred data.

Nov 30 2017, 3:25 AM

Nov 26 2017

Troy Sobotka (sobotka) added a comment to T53374: Improving Video Sequencer performance with C++ and OpenCL.

OCIO version 2.0 will have CL support.

Nov 26 2017, 4:15 AM · Video Sequencer, BF Blender

Nov 20 2017

Troy Sobotka (sobotka) added a comment to D1973: Cycles: Use proper XYZ <-> Scene Linear conversion instead of assuming sRGB.

Any chance we can move a bit on this and T46860 before SIGGRAPH 2018?

Nov 20 2017, 3:27 PM

Nov 6 2017

Troy Sobotka (sobotka) created T53257: COLORSPACE SELECTOR: Group box fails to show all possible colour transforms.
Nov 6 2017, 4:27 AM · User Interface, BF Blender

Sep 12 2017

Troy Sobotka (sobotka) added a comment to T52680: Alpha difference Viewport/F12 .

Regarding luminescent pixels, I had that fixed at one point. The predivide was the problem here, and I couldn't track down where the case of alpha == 0 was discarding RGB data. It could be solved by skipping the RGB values on the multiply in the case of alpha == 0 or setting the alpha to some extremely small value. Either scenario would preserve RGB for no occlusion / high emission cases. The OpenGL ONE_MINUS set properly blended all values, luminescent and non, when tested.

Sep 12 2017, 2:59 PM · BF Blender

Sep 10 2017

Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

Bump. Sergey? 2.8 please. kthxbai.

Sep 10 2017, 7:42 PM · BF Blender

Aug 20 2017

Troy Sobotka (sobotka) added a comment to T51896: Filmic default view isn't working correctly.

No look indeed corresponds to the Base Contrast, one fewer setup step learn or forget. But also, in OpenColorIO design looks are meant to modify the image in a creative manner, not affect the output color space.

Aug 20 2017, 7:10 PM · BF Blender

Aug 9 2017

Troy Sobotka (sobotka) added a comment to T52311: Filmic Looks "None" and "Base contrast" do the same.

I didn't mention the EOTF anywhere. My point was exactly the that you can get output in sRGB color space even when using a log transform, without the sRGB EOTF.

Aug 9 2017, 11:40 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T52311: Filmic Looks "None" and "Base contrast" do the same.

I just discussed this with Sean Cooper to make sure I wasn't losing my mind. Relevant points follow...

Aug 9 2017, 8:54 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T52311: Filmic Looks "None" and "Base contrast" do the same.

The original SPI configs contain no looks, and the docs seem pretty clear to me.

A “look” is a named color transform, intended to modify the look of an image in a “creative” manner (as opposed to a colorspace definion which tends to be technically/mathematically defined)

Aug 9 2017, 6:54 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T52311: Filmic Looks "None" and "Base contrast" do the same.

Seriously Brecht? Give your head a shake and look at the original Sony configurations.

Aug 9 2017, 2:28 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T52311: Filmic Looks "None" and "Base contrast" do the same.

Base log is useful for a number of reasons, not the least of which is interchange with display referred grading applications.

Aug 9 2017, 2:04 PM · BF Blender

Jul 23 2017

Troy Sobotka (sobotka) added a comment to T52046: Filmic not working on rendered frame in EEVEE.
  1. (optionnal) color of other engines won't be correct. Make them linear (somehow), maybe by changing the colors in the UBO struct.
Jul 23 2017, 8:02 PM · BF Blender: 2.8

Jul 16 2017

Troy Sobotka (sobotka) added a comment to T52079: VSE needs a rehaul to deliver reasonable performance.

Currently the VSE is largely in a maintenance only mode. On your points:

Jul 16 2017, 3:30 AM · Video Sequencer

Jun 23 2017

Troy Sobotka (sobotka) added a comment to T51884: importing from sYCC image formats clips away extended-range RGBdata.

This is sadly due to the swscale reliance in FFMPEG. Currently, all buffers loaded from codecs are converted to RGB at 8 bits per channel via the swscale library. This likely won't be changing any time in the near future unless the FFMPEG handling is overhauled to load raw YCbCr and let OCIO handle the colour transforms.

Jun 23 2017, 10:21 PM · BF Blender, Images & Movies

May 16 2017

Troy Sobotka (sobotka) created T51510: OIIO: Undeclared Reference OpenImageIO?.
May 16 2017, 5:56 AM · BF Blender

May 4 2017

Troy Sobotka (sobotka) updated the task description for T51417: sRGB OETF: Unused and wasted performance via the SPI sRGB OETF.
May 4 2017, 10:37 PM · BF Blender
Troy Sobotka (sobotka) created T51417: sRGB OETF: Unused and wasted performance via the SPI sRGB OETF.
May 4 2017, 10:32 PM · BF Blender

Apr 18 2017

Troy Sobotka (sobotka) added a comment to T51217: HDR black pixels with buildbot releases only.

How are you performance testing the lookups with the viewport? I have a few tests I would like to try with a degree of certainty.

Apr 18 2017, 10:33 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T51217: HDR black pixels with buildbot releases only.

Working on it.

Apr 18 2017, 10:32 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T51217: HDR black pixels with buildbot releases only.

Paul, can you test this with your image? I will try if I can get a window when I am near a box.

Apr 18 2017, 7:18 PM · BF Blender

Apr 16 2017

Troy Sobotka (sobotka) added a comment to T51231: OpenEXR DWA compression should not apply to non-color data passes.

Jesus Alex, you are at it again with your hyperbolic rubbish.

Apr 16 2017, 7:15 PM · BF Blender

Mar 12 2017

Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

Ok, I think we have really different ideas about UI design here, I don't think we're going to agree about what the best solution is. I strongly prefer names that indicate purpose rather than implementation, orthogonality of functionality whenever reasonably possible,

Mar 12 2017, 9:31 PM

Mar 11 2017

Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

I think the filmic transform is very important. I have looked into the ACES config in detail and I believe what I am proposing is consistent with it, but maybe I'm misunderstanding it then.

If we look at the "Utility - sRGB - Texture" color space in the ACES config, it converts from a wide gamut reference space to linear sRGB with a matrix transform, and then to sRGB with the sRGB EOTF. What I'm proposing is that we do the same for image textures when we adopt wide gamut. If the intention for filmic with wide gamut is to do the same as ACES here, that's fine with me.

Mar 11 2017, 10:10 PM
Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

I think the OpenColorIO design and existing implementations and configurations are clear, color spaces and transforms are not the same thing. Being able to specify an absolute color space rather than a transform relative to some other color space is critical for making exchanging of image files between applications work.

Mar 11 2017, 4:34 PM

Mar 10 2017

Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

The image setting here is not a transform, it is the color space of the image file on disk. If there are multiple ways to transform to/from that color space, that should be a separate setting.

Mar 10 2017, 10:59 PM
Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

But that's kind of my point, calling it just "sRGB" is entirely standard in 3D software and accurately describes the color space.

Mar 10 2017, 12:50 PM
Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

For this we would use a name like Linear sRGB, Linear BT.709, .. to distinguish from sRGB. The way I understand the design of OpenColorIO is that this is a place where you give the name of a color space, not the name of a transform. I don't think anyone will be confused in thinking that selecting "sRGB" will save linear.

Mar 10 2017, 8:49 AM
Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

If we can get better support for roles in 2.79 I doesn't really matter if it's called Non-Color or Non-Color Data. If we don't get better roles in 2.79, we will need compatible names.

Mar 10 2017, 5:30 AM
Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

For example if I set a normal map image to Non-Color now, that does not exist in filmic and it will use the SRGB EOTF, and the render will be wrong.

Mar 10 2017, 4:14 AM

Mar 9 2017

Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

Apologies for not being clear on my thinking.

Mar 9 2017, 1:42 AM
Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

The only reason we are having this discussion is because folks are actually using and trying the colour management transforms. At least part of that I would attribute to the clairty of the configuration which has all portions operating together.

Mar 9 2017, 12:34 AM

Mar 8 2017

Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

For filmic though, why have a separate configuration?

Mar 8 2017, 6:41 AM

Mar 6 2017

Troy Sobotka (sobotka) added a comment to D2547: Color Management: Allow selection of the OCIO configuration in the User Preferences.

How do we make it easier to interchange one configuration with another? Shall we introduce non-color space as a role to address current issues? Do we have other cases to be covered to make interchange less painful?

Mar 6 2017, 7:29 PM

Feb 10 2017

Troy Sobotka (sobotka) added a comment to D2159: DCI-P3 Wasn't Showing.

First, DCI-P3 is a specific shift in chromaticity to the DCI-P3 basis primaries. I haven't confirmed that the correct shift is going on yet with the one that is in the config, and I would not hold my breath as the configuration was cobbled together, mixing and matching transforms.

Feb 10 2017, 2:49 AM · BF Blender

Nov 27 2016

Troy Sobotka (sobotka) created T50122: SEGFAULT: OCIO configuration typo leads to segfault.
Nov 27 2016, 12:12 AM · BF Blender

Jul 14 2016

Troy Sobotka (sobotka) added a comment to T44341: Access to apx10 colorspace (as well as some others) missing in Color Management drop-downs.

DPX is actually a SMPTE standard, much like many other facets already within Blender. It is used almost exclusively to communicate display referred image encodings.

Jul 14 2016, 2:03 PM · BF Blender

Jul 13 2016

Troy Sobotka (sobotka) added a comment to T44341: Access to apx10 colorspace (as well as some others) missing in Color Management drop-downs.

Any motion on this?

Jul 13 2016, 6:23 AM · BF Blender

May 8 2016

Troy Sobotka (sobotka) added a comment to D1973: Cycles: Use proper XYZ <-> Scene Linear conversion instead of assuming sRGB.

While we are at this patch, the default config should be chucked out. The ACES bits are entirely wrong, the legacy copied transforms from the SPI pack is completely wrong in this context, and a hundred other errors.

May 8 2016, 5:12 AM

May 6 2016

Troy Sobotka (sobotka) added a comment to rBddd6be183469: Compositor: negative color support for ASC-CDL offset.

On the Offset UI element, it would seem fine to permit negatives?

May 6 2016, 10:01 PM

May 4 2016

Troy Sobotka (sobotka) added a comment to rBddd6be183469: Compositor: negative color support for ASC-CDL offset.

Not sure about this if only because it prevents transfer of CDL values to other applications. There is no basis value available in the CDL, simply an offset.

May 4 2016, 6:24 PM

Apr 30 2016

Troy Sobotka (sobotka) added a comment to T21138: SEQUENCER: Frame Rate Base Rounding Leads To Vid / Audio Strips Out Of Sync by 1 Frame.

This isn't related to the bug and likely due to a combination of GOP with non-equal encoded data.

Apr 30 2016, 3:14 PM · Video Sequencer, BF Blender

Apr 13 2016

Troy Sobotka (sobotka) added a comment to T34684: DPX/Cineon : let OCIO handle color space conversions.

The specification is an SMPTE standard that can only be downloaded from the various international standards sites for a fee. The general outline can be read at http://www.digitalpreservation.gov/formats/fdd/fdd000178.shtml#local

Apr 13 2016, 10:00 AM · BF Blender
Troy Sobotka (sobotka) updated subscribers of T47820: Color Space wrong display (Rec 709 .dpx images in blender).
Apr 13 2016, 5:16 AM · BF Blender
Troy Sobotka (sobotka) added a comment to T34684: DPX/Cineon : let OCIO handle color space conversions.

It has nothing to do with specs. It has to do with transfer curves, something that everyone in the motion picture world deals with every day. It isn't complex if imagers can select the damn colourspace, just as they do with _every other RGB format out there_.

Apr 13 2016, 3:33 AM · BF Blender

Apr 12 2016

Troy Sobotka (sobotka) added a comment to T34684: DPX/Cineon : let OCIO handle color space conversions.

If one examines the SLog, VLog, CLog, and all of the other variants at HPD's ACES repo here https://github.com/hpd/OpenColorIO-Configs/tree/master/aces_1.0.1/luts, one can see the problem; it is impossible to hard code all of the camera vendor transfer curves into Blender. That doesn't even include revisions and other custom transfers.

Apr 12 2016, 11:05 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T34684: DPX/Cineon : let OCIO handle color space conversions.

Given the ArriRaw converter, there are at least a dozen different implementations that can be encoded into a DPX.

Apr 12 2016, 11:00 PM · BF Blender

Mar 27 2016

Troy Sobotka (sobotka) created T47960: Texture Paint: Various Shaders aren't Respecting OCIO Colour Space.
Mar 27 2016, 7:14 AM · BF Blender
Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

Sergey, can we just fix this? I am really hesitant to even attempt to fix anything else color related, of which there are hundreds of things, if we can't simply agree that:

Mar 27 2016, 6:49 AM · BF Blender

Mar 14 2016

Troy Sobotka (sobotka) added a comment to T47709: ASC CDL: Should permit negative values on offset..

I don't think it's really great idea to change wheels to sliders, and i don't find new tooltips any more artists friendly.

Mar 14 2016, 3:21 AM · BF Blender

Mar 8 2016

Troy Sobotka (sobotka) added a comment to T34684: DPX/Cineon : let OCIO handle color space conversions.

Valid points.

Mar 8 2016, 10:48 AM · BF Blender

Mar 7 2016

Troy Sobotka (sobotka) added a comment to T47709: ASC CDL: Should permit negative values on offset..

Oops. I mistakingly posted "Slope" when I should have said "Offset". Dummy.

Mar 7 2016, 8:37 AM · BF Blender
Troy Sobotka (sobotka) created T47709: ASC CDL: Should permit negative values on offset..
Mar 7 2016, 8:35 AM · BF Blender

Mar 6 2016

Troy Sobotka (sobotka) added a comment to T34684: DPX/Cineon : let OCIO handle color space conversions.

I'm strongly believing we should revisit this and make DPX code loading precisely the same as the rest of the image loading code, EXR excluded as also needing transforms.

Mar 6 2016, 6:32 AM · BF Blender

Feb 18 2016

Troy Sobotka (sobotka) added a comment to T44341: Access to apx10 colorspace (as well as some others) missing in Color Management drop-downs.

Currently, getting in and out of Blender is a challenge.

Feb 18 2016, 1:57 PM · BF Blender

Feb 17 2016

Troy Sobotka (sobotka) added a comment to T44341: Access to apx10 colorspace (as well as some others) missing in Color Management drop-downs.

Just bumped into this today.

Feb 17 2016, 10:04 PM · BF Blender

Feb 6 2016

Troy Sobotka (sobotka) added a comment to T47336: ASC CDL Node: Clamps.

Sorry.
System Information
Operating system and graphics card
Linux amd64 Debian Squeeze

Feb 6 2016, 2:13 AM · BF Blender
Troy Sobotka (sobotka) created T47336: ASC CDL Node: Clamps.
Feb 6 2016, 12:23 AM · BF Blender

Feb 1 2016

Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

@Sergey Sharybin (sergey), would you be against a global flag in User Preferences that flips on a "Legacy Mode"?

Feb 1 2016, 4:29 PM · BF Blender

Jan 23 2016

Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

It is a step to getting Blender's internal logic up to date.

Jan 23 2016, 9:59 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

This is a tremendous question actually.

Jan 23 2016, 8:00 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

Apologies for mixing. I will re-report two more.

Jan 23 2016, 4:16 PM · BF Blender

Jan 20 2016

Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

On subject, it appears the line in rna_nodetree.c that restricts the maximum value to 1.0 should be changed to FLT_MAX to accommodate Cycles scene referred ranges as well.

Jan 20 2016, 6:02 PM · BF Blender
Troy Sobotka (sobotka) added a comment to T47212: Luminance Matte Node Fix.

Luminance will always depend on the chromaticity coordinates of the particular RGB reference.

Jan 20 2016, 3:22 PM · BF Blender
Troy Sobotka (sobotka) updated subscribers of T47212: Luminance Matte Node Fix.

@Sergey Sharybin (sergey), @Brecht Van Lommel (brecht), or @Lukas Stockner (lukasstockner97) care to apply this trivial one?

Jan 20 2016, 8:09 AM · BF Blender