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Questions tagged [color]

Questions centered around how color is specified, calculated, represented, applied, or processed in Blender. This is not for use as a generic tag. Questions may include topics such as color space, color depth, RGB, CMYK, hue, saturation, brightness, Lab color, hexadecimal color.

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30 votes
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Physical iridescence in Cycles?

Having recently seen the Siggraph paper A Practical Extension to Microfacet Theory for the Modeling of Varying Iridescence, I of course said to myself "I have to have this in Blenderrrrr!" and started ...
Mentalist's user avatar
  • 19.3k
28 votes
1 answer
7k 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?
user avatar
25 votes
4 answers
3k views

Mix colors from different objects at collision (Rigid Bodies and Particles)

This will be a pretty complex question, many areas will be connected to it but it is for sure focused on one main problem. I'm not sure is it possible without heavy scripting and I didn't found ...
cgslav's user avatar
  • 17.6k
18 votes
1 answer
17k views

Color vs. Non-Color data

I was always under the assumption that turning an image to "Non-Color data" that is was converting it to greyscale. Playing around with normal maps it doesn't seem to be doing that at all. So what is ...
icYou520's user avatar
  • 5,489
16 votes
1 answer
3k views

Are there significant differences between Filmic shipped with Blender and its development version?

I've just read that Filmic is not completely implemented: https://developer.blender.org/D2659. Notes: The results appear to be identical to the original Filmic config, but I left out some ...
brockmann's user avatar
  • 12.6k
15 votes
3 answers
3k views

How do I create array of objects of alternating color?

I want to create a chain that alternates between two colors every x chain link. This is what I want to model: The best I could do was use the wave texture node, but then I get chain links that are ...
Toni's user avatar
  • 153
13 votes
2 answers
7k views

Control a ColorRamp node from outside a node group

I have a ColorRamp node inside of a node group and I would like to have a group input which controls the "Pos" value of the white colour, but there doesn't seem to be a good way to do it. Since I'm ...
snipers500's user avatar
13 votes
2 answers
3k views

Blender halftone pattern filter

I am trying to set up a material that acts as a filter - taking an image plane and giving it a halftone look. The dot pattern is made wih a radial gradient texture mapped across the camera space. A ...
Mentalist's user avatar
  • 19.3k
12 votes
1 answer
21k views

Add material and apply Diffuse color via Python

This may be another simple question but I can't seem to find a straight answer. I am procedurally generating figures and as part of the last step I want to color the figure red. If I manually add a ...
switchup621's user avatar
11 votes
3 answers
2k views

Creating a Liquid Bubble Effect

I saw some really cool 3d work here, and I want to know how to recreate this. What I want in the answer: How the particle system works (or model) How to color the layers (the blue, red, and orange)...
Alex Safayan's user avatar
  • 1,116
11 votes
1 answer
735 views

Is there a way to adapt False Color to be seen for color blind people?

I have severe red/green protonopia and find the red and green to be the same when I use False Color mode to calibrate lighting exposure. I'm wondering if there is a way to get numeric feedback on ...
Sunlight Swift's user avatar
11 votes
2 answers
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 (<...
J Sargent's user avatar
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10 votes
3 answers
4k views

Material for Rainbow around Torus

Is there a convenient way to make a rainbow material that varies smoothly along a torus? In the image below, I made a new emission material for each of the 32 segments along the major axis, changing ...
ChemWes's user avatar
  • 103
10 votes
2 answers
28k views

Realistic Aluminum Material In Cycles?

I need help, making a realistic looking aluminum material, like in the pictures below. I would like to only use procedural textures within Cycles. No external image textures. Can anybody, who ...
Viktor Raspberry's user avatar
10 votes
1 answer
3k views

HSV to RGB conversion

let's take the hsv color 0.4, 0.8, 1.0 everywhere I looked this converted to Hex 33FF85 - even in Blender when I convert it to RGB(using python colorsys, python ...
xeruf's user avatar
  • 393
10 votes
1 answer
1k views

Powder simulation

I am trying to do a simulation for a powder spread out of capsules. I did a particle system alone and a smoke alone. But I had two problems now. I need to make the smoke react with the particles to be ...
Najeb Albakar's user avatar
9 votes
1 answer
2k views

Can I colour the same text in two different colours? [duplicate]

I want the text to have this sort of colouring And this is the text.
Truly The Craziest's user avatar
9 votes
2 answers
1k views

How to use color ramp with torus

I have a torus and I need the material to use a color ramp so that all the surface has one color (red) except for a strip along the longest edge (yellow). Something like this: I tried unrap in every ...
zephirus's user avatar
  • 261
9 votes
1 answer
3k views

Green color wash over render output when rendered on server

When I render my project locally, it get the following desired result: When rendering on an Amazon server though, I get this greenish result: This is not observed in a simple test scene containing ...
Nino van Hooff's user avatar
9 votes
1 answer
2k views

How can I randomize Wave Texture's Wave Width?

I'm trying to create a Brown Dwarf / Jupiter look. The waves / bands are all relatively evenly sized and the colors are very "black / white / black / white" Is there a way I can randomize ...
Mister SirCode's user avatar
9 votes
2 answers
851 views

How do I change the default color picker mode from HSV to RGB?

Blender 2.8x default is HSV, but I want RGB like in 2.7x. Saving startup file doesn't store new settings. In the preferences settings one can only change circle to square or HSV to HSL, nothing more. ...
Serge L's user avatar
  • 3,935
9 votes
1 answer
3k views

Color difference in saved images vs Render View

I've noticed that when an image is saved (let's say as a PNG for example), the color doesn't look as vibrant as it does in Blender's Render View. For comparison, here is an image created by saving as ...
Mentalist's user avatar
  • 19.3k
9 votes
3 answers
4k views

Toon Shader – Change Color of Shadows

I made a character for a mobile game in Blender rendered with Cycles, and i used a toon material as shader. Now, for each toon material i create, i used an 'Image Texture' as a color gradient. I like ...
Lorenzo's user avatar
  • 91
8 votes
1 answer
2k views

How to make a solid shader in blender?

I'm trying to get an accurate RGB 255, 0, 0 color. Render engine: Cycles Here's my attempt, what am I doing wrong? I've tried using different color management ...
cxnt 's user avatar
  • 397
8 votes
2 answers
3k views

Making background solid color

How can I make the background color consist of only one color like the picture above? Usually I made L shaped plane, applied bevel + smooth to make a background, as shown below there is still a ...
CONQUERER HOON's user avatar
8 votes
3 answers
4k views

PythonScript to load data as colored point-cloud

Background I want to render 3D points with color information for scientific visualization. I have several hundred thousands of points up to 2 million. For each point I have [xyz] coordinates and two ...
Thomas Wilde's user avatar
8 votes
2 answers
3k views

How to get screen color under mouse cursor?

I'm trying to figure out how to get the color of the screen pixel under the mouse with python like in this video: Python-scripted color picker I tried importing bgl and adding bgl.glReadPixels in to ...
andyV's user avatar
  • 623
8 votes
1 answer
1k views

Is there a way to render to PNG as raw pixels / without converting color space to sRGB?

Sorry if this was asked before, I did find similar threads on other websites with a workaround, but it would be great if there was a way to do this without having to go through photoshop. What I need:...
Demeter Dzadik's user avatar
8 votes
1 answer
1k views

How to assign colors to Point Density based on data values?

I have a file containing approximately 900,000 x,y,z data points, each with a list of physical values at that position (temperature, density, chemical composition, etc.) I have written a Python ...
astrogeek's user avatar
  • 733
7 votes
1 answer
4k views

copy material with python

I copy one object in Blender with python。but when I change the old object's color , the new object's color also change. I know that because the new object and the old object have the same material。my ...
sfy's user avatar
  • 71
7 votes
1 answer
806 views

Why is base colour wheel only giving me black as an option

I don't know when this happened but my base colour wheel doesn't want to cooperate to give me the colours that i want. The problem: How do i get the colour wheel to show all the colours again and ...
kiblykat's user avatar
  • 495
7 votes
3 answers
7k views

Multicolored outlines (For Blender Render)

I want to give to my model a outline with multiple colors. As you can see in this image, the outlines are slighty darker than the material they surround. How can I do something like that in Blender (...
Deep Weeb's user avatar
7 votes
3 answers
584 views

Colomanagement Workflow - how to achieve requested target RGB Values?

i think this is a colomanagement workflow qestion at its best. Imagine the following scenario: Say there is a nitpicking customer, and he requests the following you from you: Deliver an image showing ...
pixelpoems.de's user avatar
7 votes
1 answer
26k views

Wacky, weird colors when entering sculpt mode (blender v2.83)

Every time I enter sculpt mode, the mesh (which should be grey) is a whole bunch of different colors. I tried changing the metacap, but the stupid colors remain. Any advice would be nice. Picture ...
Pinky_the_bat's user avatar
7 votes
1 answer
133 views

Difference based colorramp

I'm trying to color a cube based on it's distance from another object along the z axis. I can color the cube based on it's own z axis, but when I try to reference another object (e.g. the plane in the ...
neon_ninja's user avatar
7 votes
1 answer
830 views

Blender for scientific visualization - Point color interpolation from vertex color data based on distance

TL;DR: For a given point in a face/polygon how can I compute the distance between that point and all the vertices on the given face with shader nodes? Overall intent: I want to visualize complex ...
Rui Costa's user avatar
7 votes
5 answers
7k views

How do I color the shading of a material?

Some art styles increase the saturation in their shading, I'm trying to achieve this effect as seen in cell #2 of my example image. Right now it looks like cell #3, which lacks this and looks dull in ...
nomad_trooper's user avatar
7 votes
1 answer
536 views

Is it possible to pass a color ramp to a node group?

Are there any addons or other features in Blender that allow a Blender user to write nodes that pass in color ramps and reuse them in a group node? If the answer is yes, then what are the steps? ...
atomicbezierslinger's user avatar
6 votes
4 answers
2k views

Changing colours precisely, procedurally

I assumed this had been asked before but can't find anything that does what I need. I have an image texture (a png) which uses 18 different colours. I want to be able to use the shader editor to ...
JohnH's user avatar
  • 165
6 votes
2 answers
940 views

Can Cycles physically mix colours?

I was trying to recreate a so-called CMY cube, which is a translucid cube where opposite sides are coloured cyan, magenta, and yellow. When looked at from an angle, these colours mix, e.g. (More ...
AccidentalFourierTransform's user avatar
6 votes
2 answers
1k views

Assigning random material color

I am trying to script a basic grid of cubes with different colors for each cube. Does each cube need its own “material” or can the diffuse color for a single material be changed for each cube? In any ...
vpo's user avatar
  • 63
6 votes
1 answer
8k views

EXR color difference to PNG

To avoid the problems that PNG has with fire Transparency, I exported the images in EXR format, but when I compare them to the PNG counterpart, the colours in the EXR image are way to blown out. Why ...
Phönix 64's user avatar
6 votes
2 answers
4k views

Question about False Color in Render Properties

Following Blender Guru's Donut Tutorials and currently at the end of Part 1. I'm really unsure about the false color concepts, grey is the ideal color so we have to tweak all the settings till its ...
Wonkey's user avatar
  • 248
6 votes
2 answers
832 views

Is there a way to add a color legend in the mesh analysis?

I'm doing a medical research in which it is necessary to analyse the wall thickness of this Object. I used the mesh analysis which automatically colorized the meshes. Unfortunately I can't find a way ...
A.S's user avatar
  • 63
6 votes
4 answers
3k views

cycles transparency results in color loss when background is black?

to make exactly clear what i want: i want to use a scripted animation that uses live motion capture data for projection mapping. it shall look like some sort of energy beams or electricity going out ...
e-proxy's user avatar
  • 187
6 votes
1 answer
1k views

Why does the math node change the noise texture's color output to B/W?

Could someone please tell me why plugging a color into a math node (in this case set to subtract) makes the output black and white?
JUST16's user avatar
  • 207
6 votes
1 answer
419 views

Is it possible to save pixel perfect full-spectrum rgb height map?

I made shader that calculates RGB based on height. Height -> Map Range to 0-16777216 and result pixel based on where C is input number based on height: ...
krabicz's user avatar
  • 63
6 votes
1 answer
2k views

Vertex colors are wrong value?

I am using a renderlayer with some vertex colors to render some masks. I have an object with a vertex color layer. The entire object is set to RGB values of .25 each (using set vertex colors command.) ...
Ascalon's user avatar
  • 6,629
6 votes
1 answer
2k views

How to display vertex colors in Viewport Shading Mode

So I'm pretty new to blender and I'm trying to make some visualisations for a paper I'm hoping to publish. So far I've got my tractography and cortical matter loaded into Blender and I've managed to ...
LawrenceB's user avatar
  • 121
6 votes
3 answers
625 views

Is "value" Blend mode same as "luminosity" Blending mode from Photoshop?

I tried for so long to look info for this problem and found basically nothing. I am trying to adopt a technique from Photoshop to Blender to match the colors of 2 different scenes, but end up in the ...
Artturi's user avatar
  • 188

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