massive color-difference

[Mike53]

Not so sure this is a new topic, i seem to recall questioning it a couple of years ago, i have found that using textures is far more accurate than colors, here are 2 images, 1 a screenshot the other a render.

and this is a Q4 render

not only does the red change to pink but it also shows how different objects color differently, the I beams are rooms and the roller support brackets are box's, both have the same color applied to them.
Mike

[hal9000]

Well, more than 1 year after the last post, but... Has somebody tried to render one of these projects with YafaRay to see if the color difference between a pure color and a texture of the same color is still there?

[UbuntuBirdy]

Interesting idea. Yes, I have, but unfortunately I have changed all my projects from colored to textured objects.
But I will this give a try.

[enkonyito]

@UbuntuBirdy

This picture shows what's wrong in my opinion:

- The left cube has a texture which is only colored as #520015
- The right cube has the color #520015 directly

In my opinion both cubes should look the same, we should see exactly the same color. But only the textured cube shows the color #520015 as it should be.

I think the difference comes from the way Java 3D processes colors or textures.

Example of rendering in quality 1.


Enko

[Mike53]

Not sure if this issue has been attended to but i am still getting the same issue

Roof with colour:-



Roof with texture:-

[hansmex]

This is a known "problem". Using an even-coloured texture is the solution, as you already found out.

H

[Mike53]

Just because it is something that is a "KNOWN PROBLEM" shouldn't mean we have to continue with "work arounds" rather than sorting the issues.
As a maintenance engineer i quite often use "work arounds" when needed to get a machine running, but, these are temporary, I return as soon as possible to properly make repair.

[reddy.shyam]

While we are at it, is my issue same as well? All my bright colors become pale when I generate an image. Please see attached.

Any setting I need to change while generating image?



Cannot attach any image host files for some reason. Tried imgur and prnt.sc`

[kutlu9]

I'm having same problem as reddy.shyam. I was using the programm without any problems, suddenly my images become over exposed. Uninstall/reinstall didn't solved it.

I noticed sky texture or color doesn't render (rendering with only pure white color) making final image over exposed.

[c0d3z3r0]

The problem seems to be that Java3D expects Linear RGB as input color space:https://forum.jogamp.org/sRGB-and-gamma ... 38946.html

I've tested this by manually setting the RGB value of a wall to a gamma-corrected value ( lin=255*(val/255, 2.2) ), which makes yafaray and sunflow output the correct color.

There are two options: 1) feed in a generated texture or 2) convert the colors to linear RGB