This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.
The Noise Material Expression is rendering values well outside the Min and Max Range set in the Expression node.
Also Reproduced in Main Promotable-CL-2469752
Alerted the user to suspicions and suggestions as discussed in email (see below for reference) and user is reporting that the using the same high value position in a Custom node with an input called EvalPos and with the code
return SimplexNoise3D_TEX(EvalPos);
you will get results that are correctly between -1 and 1 (Tested and confirmed in Main)
===from email conversation, for reference only===
"I wasn't aware of this but it might be because of multiple floating point operations result in a very low precision result. e.g.
1000000.2 - 1000000.1 in float is not exactly 0.1.
Some methods use texture interpolation hardware which is even less precise.
I suggest to try the different nose methods, reduce the input number range (frac, relative to object center, scale down, ...)
or clamp the result.
There might be a bug but I wouldn't be surprised if large numbers can cause issues.
The methods have different properties but none is perfect - maybe we can improve on that issue.
I assume the min and max in the noise expression are set to the defaults.
Martin"
RESULTS: value of 3.## showing
EXPECTED: a value between 1 and -1
Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows
I am not able to find world outliner how to enable it?
Delay nodes occasionally don't fire the "Completed" output in a nativized build
An error occurred while trying to generate project files !?
How to convert the datasmith scene file to BluePrint. Create animations in BluePrint.
I cant package my project, tried to search online but could not find any answeres
How to achieve HLSL Multiple Render Target in Material blueprints?
Head over to the existing Questions & Answers thread and let us know what's up.
4 |
Component | UE - Graphics Features |
---|---|
Affects Versions | 4.7.3, 4.8, 4.14 |
Created | Mar 31, 2015 |
---|---|
Resolved | Feb 21, 2017 |
Updated | Apr 27, 2018 |