Flashing buildings problem

Often in layouts buildings will spontaneously flash (as though briefly caught in the headlights of a loco). This happens day or night, but at night it completely spoils the night effect.

The flashing buildings can be anywhere, not just near any tracks.

I've noticed this happening in 2006 and Classics (Tropical Metropolis)

Is there a way to prevent it, at least in layouts you design youself?

Cheers
Holo
 
This is only a theory but I think this happens when one surface is in exactly the same place as another surface, or very nearly so. If possible, try slightly changing the lateral position, the height, or the rotation angle of one of the objects.

Also try switching from DirectX to OpenGL or vice versa.

There could be other explanations.

John
 
Often in layouts buildings will spontaneously flash (as though briefly caught in the headlights of a loco). This happens day or night, but at night it completely spoils the night effect.

The flashing buildings can be anywhere, not just near any tracks.

I've noticed this happening in 2006 and Classics (Tropical Metropolis)

Is there a way to prevent it, at least in layouts you design youself?

Cheers
Holo
I find this really bad for me in DirectX, but almost gone in OpenGL.

Mike.
 
It may also be worth updating (or backdating) your graphics drivers if none of the above works...

Paul
 
Problem unexpectedly solved!

I had another problem with collapsing trains (see my post), and was advised to move the poly level slider all the way to the right in the display options.

Moving the poly slider all the way to the right cured the problem of the collapsing trains. (It was only 1 notch away from the right.)

It also cured the flashing buildings problem.

I tried both DX and Open GL, and the problems were solved in both modes.

Wonderful! What a difference a single notch can make!

Holo
 
This is only a theory but I think this happens when one surface is in exactly the same place as another surface, or very nearly so. If possible, try slightly changing the lateral position, the height, or the rotation angle of one of the objects.

Also try switching from DirectX to OpenGL or vice versa.

There could be other explanations.

John

I think you're correct. This is called co-planar faces, and is caused when flat surfaces are too close to each other, and are fighting for display resources in the Z-buffer. By moving the objects just a hair, this usually takes care of the problem.

John
 
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