Questions tagged [color-management]

In digital imaging systems, color management is the controlled conversion between the color representations of various devices, such as image scanners, digital cameras, monitors, TV screens, film printers, computer printers, offset presses, and corresponding media. Source:https://en.wikipedia.org/wiki/Color_management

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12
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4answers
2k views

Where do the white lines come from in my composite?

I'm having this issue for years now, and I'm not sure if I am doing something wrong on my end, or if what I would like to achieve - or expect to see - is even possible. My question is about ...
4
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1answer
3k views

Combine Filmic Blender and “Standard” Film Emulation

Is it possible to combine the very helpful filmic-blender Color Management with the default Blender Color Management? It helps a lot to light the scenes with the filmic contrast settings, but when it ...
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2answers
896 views

How to turn off gamma correction with Python in Blender 2.69

I'm trying to render surface normals for my scene, and I've gotten it to work in Blender 2.78. One of the important steps was to eliminate the gamma correction which was whitening the image. I did ...
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0answers
110 views

Python iterating through a ui enum

I am trying to print all of the looks that are installed inside of the colormanagement look enum. Currently I have: ...
31
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1answer
6k views

How to make 3D LUTs and use them in Blender?

Now that I understand a little bit more about how to work with Wide Dynamic Range workflow , scene referred datas and OPS(ASC CDL) node, I'm asking myself how to go further and create my own 3D LUT ...
2
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1answer
2k views

Blender PNG saved as 48 bit color depth really?

I chose the options 16 bit, RGB, PNG, etc, and the image saved on my desktop says in its details "48 bit" color depth, then when saved again in a paint program, it got lowered too to 32 bit and 1/4th ...
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2answers
529 views

How do I use the compositor to render with different color management profiles?

I'm using several scenes to render several images at the same time with the File Output nodes in the compositor. I have different Color Management settings in my scenes. Yet when I render my images ...
0
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1answer
618 views

A light rendering problem or an export problem?

I'm encountering a problem, as usual I tried to make it smaller and smaller until I would reach a point where it becomes clear what I've done wrong and after repairing that I rebuild. But now I run ...
8
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1answer
1k views

How to scale properly HDRI image, to be used in ASC-CDL HDR render?

I've been test rendering lighting my scene using HDR images, trying to get the right value of light and shade from. The problem is, no matter what I do, I can't get the full spectrum in one image, ...
9
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1answer
2k views

Using the False Color look in combination with the CDL Node to work on Wide Dynamic Range scenes

The color management for working in cycles can be enhanced to work with wide dynamic range scenes. The idea is to enable working with scenes containing values that exceed the conventional 0-1 range. ...
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1answer
3k views

What is the the ASC-CDL node?

The color balance node in the compositor can be switched to use the ASC CDL How is it used? How is this different from Lift/Gamma/Gain? How do the Offset, Power, Slope options affect the image?
9
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1answer
210 views

What are good practices to keep in mind when lighting for scene-referred data?

My understanding is that your lights shouldn't be limited by the dynamic range the default view can show. I'm sure there's more to it than just making lights brighter and over-exposing the default ...
2
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1answer
183 views

Can't get 'true white' video output

I'm doing a short credits sequence (blend file below), where a few alpha UV materials are overlaid, lit with a single sun lamp. When I render out the sequence, I can't get a good ol' 8-bit white from ...
12
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1answer
804 views

How must I adapt my workflow to work with Scene Referred Data?

I just took the red pill and started watching the real world, in fact the CG real world. I've understood that the default sRGB view workflow is bad. I'm using the color management LUT bassam-test ...
2
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1answer
74 views

Unexpected color flattening

I am fresh to Blender and am making a futuristic-ish flying vehicle network. There are rows of rectangle groups all moving in different directions while the camera pans the scene. In an arbitrary ...
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0answers
687 views

Blender error on startup [closed]

When I start Blender, I get this error in the CMD: COLOR MANAGEMENT : USING FALLBACK MODE FOR MANAGEMENT BLT_LANG_INIT: 'LOCALE' DATA PATH FOR TRANSLATIONS NOT FOUND, CONTINUING AL LIB: ...
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1answer
830 views

Colors from imported image in compositor aren't displaying correctly

When importing images for use as a starting image in blenders compositor the colors do not display correctly. I tried different ways to fix this issue but can't find a solution. My guess would be ...
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2answers
2k views

Is it possible to save CMYK renders from Blender?

Is it possible to render to a CMYK image format without any intermediate conversion steps? Asked on behalf of this questioner: https://lists.blender.org/pipermail/bf-committers/2016-April/047214....
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1answer
530 views

Export render from Cycles as floating point RGB in scene linear color space?

Is there an easy way to access (and hopefully export) the rawest output from Cycles, namely the rendered image as RGB(A) floats in scene linear color space?
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2answers
2k views

Can I save rendered images as PNG with a sRGB color profile?

It is my understanding that I can save rendered images at best as PNG files. But what about color profiles ? The manual says: The other place to keep color management in mind is when loading and ...
0
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1answer
85 views

Color Management Blender geared towards motion pictures ?

Made aware of Color Management options in Blender I am now diving somewhat deeper in Color Management in Blender. The manual tells me that OpenColorIO is used ... OpenColorIO (OCIO) is a complete ...
2
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1answer
2k views

Color Management panel in Blender

I have some question about the Color Management panel in Blender Display Device (Scene panel) Now it seems to me that I have two options for Display Device in the Color Management Panel, either sRGB ...
2
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0answers
111 views

Color Management in Blender [duplicate]

Till now I rendered my images and took them to Photoshop and did some color corrections there. Made aware of Color Management options in Blender by Rick's answer on this question I am now diving ...
2
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1answer
724 views

Color codes in image do not match the material

I am rendering a scene with the intent to label objects using a "solid" color. For this, objects have an emissive shader where I set the RGB colors by script. In the render view, when I click on ...
3
votes
2answers
284 views

Images with Alpha look different when layered in compositor compared to Photoshop

I'm struggling to get the same result in the Blender node editor when layering images with transparency, to the result I get when doing the same in Photoshop. The Blender result is shinier/washed out ...
100
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2answers
30k views

Render with a wider dynamic range in cycles to produce photorealistic looking images

To get images that seem more photorealistic, not only a much wider Dynamic Range is needed, but also having the color information desaturate towards white as it would happen in an overexposed ...
6
votes
2answers
896 views

Can Blender be used to composite HDR photos?

So, I know Blender can render out to .hdr format. And I am also familiar with Blender's compositor. What I don't know much about is the processes or algorithms used to produce HDR photographs, or what ...
4
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2answers
168 views

A question about color

Please consider this image: The color in the top swatch, labeled "original color" is made from an image I downloaded from the web. I cut out a bit of a colored area that I found appropriate, scaled ...
13
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2answers
2k views

Why would I use the “Film Emulation” feature?

From what I can tell, this setting alters the exposure and other parameters to simulate a specific film, however why is this any better than exporting a file format that supports high dynamic range (<...
2
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0answers
243 views

Does cycles allow for negative values in color data?

I was recently working on a node setup the required for some color image data to have some negative values, as I was using the subtract node. As far as I can tell, the values stop being subtracted at ...
1
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0answers
200 views

How to set the display device to None in a python script? [closed]

I want to set the display device in Blender 2.69 to 'None' rather than 'sRGB' using a python script. I have tried the following: ...
5
votes
2answers
329 views

UV render pass non-linearity

I am writing a piece of software that needs pre-rendered UV maps for on the fly texture mapping. I tried rendering these maps in blender, but the color values in the resulting image do not change in a ...
2
votes
2answers
986 views

How to create and change the color of a Node based material with a script

I want to do an animation of a blender object which changes the color over time, in dependence of the temperature. Therefore zeffi already wrote a script which transforms different colormaps into ...
12
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2answers
2k views

Cycles Gradient Texture node: Why “Linear” is not linear on a “default” plane?

I want to render a plane with a linear gradient texture that can be rotated as needed. I've set up a basic working node network as shown: I can rotate the gradient using the Mapping Node - > Texture ...
12
votes
1answer
2k views

When to use sRGB and when not to?

I discovered that in my Scene Color Management, Display Device has always been set to sRGB. When I turn it off, the color of a given RGB now seems to match what I see in say Matplotlib. No matter how ...
6
votes
2answers
785 views

Set color of Blender object based on external data (e. g. temperature) using a colormap

I want to do an animation of a Blender object that changes color over time using a script. I already found out how to change the colors and set the keyframes from a script, but what I would need in ...
6
votes
1answer
908 views

50% Grey at 0.5 instead of 0.18?

why is it that 50% grey is at 0.5 instead of 0.18 in the color selection panels? That doesn't feel consistent with a linear workflow I am used from other apps. thx
1
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1answer
2k views

Materials from Blender to Three.JS: Colors seem to be different

I am just working on a bigger WebGL project, using the three.js framework. I am also using Blender as my 3D Software and the latest version of the three.js blender exporter. While developing I ...
4
votes
2answers
3k views

Is the render output linear color or 2.2 gamma?

I know Blender can nowadays use a proper linear workflow. The thing that is unclear to me even after reading the support documents is whether or not Blender saves the output with linear color or does ...
1
vote
1answer
1k views

Why do calculated and read-out RGB-Values differ?

In short: Generate Mesh and choose color in color picker for the whole mesh (The mesh in the example below is a simple cube) Read color (three float values) via Python and send them (with mesh ...
3
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1answer
775 views

Where is the colour management option?

I'm looking for this colour management option: However, I can't find it. Where is it? I am currently looking at this: I cannot see anywhere how I can go into a "colour management" option like the ...
1
vote
1answer
728 views

relationship between light intensity and 8bit grayscale

what is the relationship between light intensity (I) and the 8bit value of my black&white render output? The background is that I want to simulate a sensor that sends a signal every time the ...
29
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1answer
2k views

How can Blender be augmented to display color critical and accurate results?

If I need to use Blender within a colour-accurate workflow, what do I have to do to set that up (including hardware calibration, etc)?
9
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1answer
3k views

How to avoid gradient banding while using a video sequence editor?

I rendered a 80 frame test animation in jpeg format. Used Blender to create the movie. The output format is mp4. The bottom image shows the first of the rendered image on the left extreme. The image ...
9
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1answer
2k views

Colour shift when viewing render outside of blender

So this is what occurs the left is original right is when its saved knowing tiff saves it raw, I did it and was able to open it in Photoshop the same way(correct) it was in blender but just like ...
2
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2answers
156 views

Getting rid of colours in textures

So continuing from my many Earth posts, I've now come to the dilemma of my night side. I'm currently using a texture that's around 52000x32000 which is perfect, can't go lower than that, and it was ...
8
votes
2answers
605 views

Emission shader color saturation clipping

I stumbled on a trick that while working on one project that will help me with another, but I am not sure why it works. When I set the color of an emission shader to a saturation of 1 the shader ...
9
votes
1answer
1k views

Repurposing vector (speed) render layer for optical flow

I'm trying to compute optic flow in my Blender scene using the "speed" render layer (appears as "vector" in the outliner window). This render layer is supposed to return the speed and direction of ...
1
vote
1answer
1k views

How to render model with plain cartoon like colors [duplicate]

I just started to work with blender, finished my first models and i want to do some advanced things. My question is pretty simple: please see attached image. How do i achieve such rendering style in ...
4
votes
1answer
619 views

Color differs from Cycles render in Video Sequence Editor

I've made a space scene, rendered it in cycles, and saved the animation frames as .png pictures. Than I used the Video Sequence Editor for making a video out of these pictures. But the result of the ...