LOD vs FOV

Bug #1350995 reported by raster
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Open Rails
Triaged
Wishlist
Unassigned

Bug Description

OR have a problem with LOD when the FOV is low. In my opinion, the LOD should increase with decreasing FOV, because some parts of the objects that should be visible, disappear.

Examples:

at close quarters:
http://screenshooter.net/100102094/ulyhtwp
http://screenshooter.net/100102094/ddbfwmj

from afar:
http://screenshooter.net/100102094/fehucxr
http://screenshooter.net/100102094/ymdgyte

from afar, but the FOV:
http://screenshooter.net/100102094/rxdtqvp
http://screenshooter.net/100102094/utskthi

The route of the first examples is polish Wschodnia Polska, Kraśnik station
http://www.wp.trainsim.pl/download-first/click.php?id=1

The train of the second example is composed of vechicles from this package:
http://www.pmk.trainsim.pl/download-first/click.php?id=14

CON file in the attachment.

translated from polish by google ;)

Revision history for this message
raster (raster6569) wrote :
James Ross (twpol)
Changed in or:
status: New → Triaged
importance: Undecided → Wishlist
Revision history for this message
Dave Nelson (lake-muskoka) wrote :

IMO this bug makes an interesting observation of how changing the FOV alters the *apparent* distance between camera and object.

Is there a simple math calculation that can be computed whenever the FOV changes from "normal" to be used as a simple adjustment value to object defined LOD values?

Revision history for this message
James Ross (twpol) wrote :

I think we could do so, because it's all ratios: half the FOV makes things twice as large, as if they were half as far away.

Changed in or:
milestone: none → 1.1
James Ross (twpol)
Changed in or:
milestone: 1.1 → 1.2
James Ross (twpol)
Changed in or:
milestone: 1.2 → none
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