Shimmering/Moire Effect
- Thread starter smyers
- Start date
Tony_Hilliam
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I was watching a Chris Tarrant train journey the other day and saw the same effect. It is an artifact of paralled lines and changing angles and is hard to avoid (even in real life).
https://en.wikipedia.org/wiki/Moiré_pattern
Afaik, the solution in Trainz is for the content creator to change the spacing of the sleepers to something that doesn't have the same effect.
https://en.wikipedia.org/wiki/Moiré_pattern
Afaik, the solution in Trainz is for the content creator to change the spacing of the sleepers to something that doesn't have the same effect.
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That good old moiré effect. This is sometimes a difficult to remove even in the printing industry, which uses various angles for their printing plates to mitigate this as much as possible when used to create the rosettes for colored images. A commercial printer I know lost $100K-plus per month in business because he messed up on some catalogs with striped shirts in them. The customer rejected the printing and he lost not only this job and had to eat the cost, he also lost all the future work from this customer.
In videos and on computer screens, I hate to say it but the old-fashioned CRTs had less of an issue with this than those nice new flat screens we have today due to the dots being laid out differently on the screen.
In videos and on computer screens, I hate to say it but the old-fashioned CRTs had less of an issue with this than those nice new flat screens we have today due to the dots being laid out differently on the screen.
If this is similar to the effect I reported on first running TRS2019 - massive light reflection off most surfaces and extreme contrast between light and shade, then the solution is as discussed in this thead:
https://forums.auran.com/trainz/showthread.php?147854-Trainz-Early-Access-Details-Page/page6
From Post #86 onwards. Still not entirely successful and I really need to play with post processing but little point until the settings can be perma saved. Certainly worth seeing if it tones things down a bit - the default lighting is awful.
https://forums.auran.com/trainz/showthread.php?147854-Trainz-Early-Access-Details-Page/page6
From Post #86 onwards. Still not entirely successful and I really need to play with post processing but little point until the settings can be perma saved. Certainly worth seeing if it tones things down a bit - the default lighting is awful.
No, Vern - moiré patterns are a form of interference and are not related to 'massive light reflections/ ... extreme contrasts between light and shade'.
They create shimmering wave patterns, often rainbow coloured, particularly when consists are viewed from external chase view, and will be observed mainly on the track and other regularly-spaced splines in the field of view.
T:ANE and TRS2019 are both prone to this disconcerting visual patterning because they depict higher resolution views of parallel lines and regularly-spaced objects (such as sleepers, road or pavement stripes, etc.) than previous Trainz versions and our more powerful modern graphics cards faithfully render the diffraction and interference patterns more readily.
TANE Trk Oak in T:ANE was especially prone to this, whereas TANE Trk Jarrah and TANE Trk Concrete were less affected.
They create shimmering wave patterns, often rainbow coloured, particularly when consists are viewed from external chase view, and will be observed mainly on the track and other regularly-spaced splines in the field of view.
T:ANE and TRS2019 are both prone to this disconcerting visual patterning because they depict higher resolution views of parallel lines and regularly-spaced objects (such as sleepers, road or pavement stripes, etc.) than previous Trainz versions and our more powerful modern graphics cards faithfully render the diffraction and interference patterns more readily.
TANE Trk Oak in T:ANE was especially prone to this, whereas TANE Trk Jarrah and TANE Trk Concrete were less affected.
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One of the ways of avoiding this is to use stochastic filtering or screening to reduce the sharpness of edges. This diffuses the lines enough so that there is no conflicting patterns caused by lines being at angles to cause this anomaly. This is in fact how ink jet printers print photographs and avoid this issue.
