1,746
edits
Anti-aliasing: Difference between revisions
Jump to navigation
Jump to search
m
Cleanup
(Add a section for overriding AA via the control panel to values higher than what FG launcher UI currently allows, or setting transparency AA. Add a note about the black square bug in NVIDIA cards when AA is forced off in the control panel but is turned on in FG.) |
m (Cleanup) |
||
| Line 1: | Line 1: | ||
By default, [[FlightGear]] will not use '''{{Wikipedia|anti-aliasing|noicon=1}}''' during the simulation. This results in incorrect rendering of sharp straight lines and very small objects. In order to correct this, you can apply the anti-aliasing function; however, this will slow down rendering and is not guaranteed to work on all graphics cards. | By default, [[FlightGear]] will not use '''{{Wikipedia|anti-aliasing|noicon=1}}''' during the simulation. This results in incorrect rendering of sharp straight lines and very small objects. In order to correct this, you can apply the anti-aliasing function; however, this will slow down rendering and is not guaranteed to work on all graphics cards. | ||
NVIDIA and AMD drivers have an additional option for transparency anti-aliasing that is helpful for use with overlays. | NVIDIA and AMD drivers have an additional option for transparency anti-aliasing (called adaptive anti-aliasing by AMD) that is helpful for use with overlays. | ||
Try turning anti-alising higher than what you would normally use if your FPS is limited by your CPU, or if you have more FPS than you want. Anti-aliasing only needs GPU time, it doesn't need extra CPU time. | |||
== Examples == | == Examples == | ||
| Line 45: | Line 47: | ||
[[File:Rotor_wash.jpg|thumb|300px| Volumetric grass effect using the overlays]] | [[File:Rotor_wash.jpg|thumb|300px| Volumetric grass effect using the overlays]] | ||
'''Transparency anti-aliasing''' (NVIDIA), called '''Adaptive anti-aliasing''' by AMD, is a 2nd anti-aliasing option (article with [https://www.anandtech.com/show/2116/13 explanation] <small>- [http://web.archive.org/web/20150715074320/https://www.anandtech.com/show/2116/13 archived]</small>). Transparency anti-aliasing can be enabled in the control panel for NVIDIA and AMD GPUs. | |||
This is in addition to overlays being demanding. | |||
[[:Category:Screenshots_of_overlays|Overlays]] benefit from transparency anti-aliasing. Overlays add very small scale 3d detail to ground when regional terrain has been updated with overlays. Transparency anti-aliasing is most noticeable on overlay grass (High super-sampling transparency anti-aliasing [[:en:images/2/2c/Rotor_downwash_of_the_Aircrane_on_grass,_Florence_Airport_(LIRQ),_Tuscany,_Italy_(Flightgear_2018.x).jpg|example]]). However as of March 2020, transparency anti-aliasing is also applied to things like trees by FlightGear. High vegetation density with overlays can cause a bottleneck depending on GPU. | |||
Transparency anti-aliasing can take up a lot of GPU time. This is in addition to overlays being a demanding on the GPU. Anti-aliasing and overlays don't need extra CPU time, and you can try turning them up if you are CPU bound, or your GPU has FPS to spare. | |||
The Multi-sample (MSAA) option has the best results without too much slowdown. It's recommended. The super-sampling option is slower. | The Multi-sample (MSAA) option has the best results without too much slowdown. It's recommended. The super-sampling option is slower. | ||