Simviation Forums

Hi guys, I've got a couple of questions I would like to ask concerning scenery textures in FSX.

Firstly, what does mipbias=# exactly do and what is the dfference between that and level of detail radius? Which has a bigger peformance impact at max (8 + high)?

If I wanted to increase FIBER_FRAME_TIME_FRACTION=0.33, how much shall I increase it by to notice less bluries when travelling fast?

I read somewhere (cannot remember) that FSX's native textures only use 2M texture resolution at max, is this true? What would it be for mesh resolution? I'm guessing the higher ones are for photograpic scenery. If I set these to the max it actually uses, will I get better FPS and less blurries?

Cheers.

Hi guys, I've got a couple of questions I would like to ask concerning scenery textures in FSX.

Firstly, what does mipbias=# exactly do and what is the dfference between that and level of detail radius? Which has a bigger peformance impact at max (8 + high)?

If I wanted to increase fiber fraction frame rate, how much shall I increase it by to notice less bluries when travelling fast?

I read somewhere (cannot remember) that FSX's native textures only use 2M texture resolution at max, is this true? What would it be for mesh resolution? I'm guessing the higher ones are for photograpic scenery. If I set these to the max it actually uses, will I get better FPS and less blurries?

Cheers.

Hey, sorry I can't answer most of these, but I can answer the fiber fraction one.  The only reason that is in the cfg file is to lower the amount of time the computer spends drawing the textures in.   So to get less blurries, just erase that from your entry entirely, as adding that section in with any number below 1 will result in blurs.

Hopefully others can answer your other questions  ;)

For the mipbias, I think (but I'm not sure) that it influences the quality of the MIP-Mapping for the ground textures.
MipMapping consists in creating several versions of a given texture, each of those versions having smaller and smaller resolution.
That allows the program to display the distant textures with small resolution (you could not see any details at that distance anyway) and the closer textures with max resolution (you're near so you need details, else it would be blurry)

Now, I guess that parameter will decide how far are the "precise" textures displayed, or how near the quality of the texture has to be decreased (to improve perf, of course).

For the native (you mean default ?) ground textures, I think it's 1m, not 2.

For the blurries, it depends mostly on your CPU power (for loading the textures from the disk) and your amount of video memory (for storing those textures while displaying them). If one of those is not enough, then you'll get blurries anyway. Else, you can try any value that is greater than 0.33.
Some user here have reported some god results with 0.50. I tested that value too, I was getting some nice textures but loosing too much FPS. Additionnaly, because my CPU is not fast enough, flying fast was causing a lot of stutters for loading the scenery itself, with the autogen etc...

For information, a value of 0.33 just offers me a good compromise for flying slow, like with the Jenny or a glider.

Hi
About MipBias, i am not able to save it, all the time i end the game and come back to the cfg file, this entry is desappeared....

[DISPLAY.Device.Sapphire RADEON X1600 XT.0]
MipBias=4 <-------------Is this the right place where to put it?
Mode=1280x1024x32
TriLinear=1

Someone can suggest me about?
Thanks
Stefano

Hi
About MipBias, i am not able to save it, all the time i end the game and come back to the cfg file, this entry is desappeared....

[DISPLAY.Device.Sapphire RADEON X1600 XT.0]
MipBias=4 <-------------Is this the right place where to put it?
Mode=1280x1024x32
TriLinear=1

Someone can suggest me about?
Thanks
Stefano

Yes that is the right place to put it, but the number has to be 5 or above if you want it to stay there. I also recommend you use a lower resolution (Mode=1024x768x32) for good frame rates - I use it.

Hey, sorry I can't answer most of these, but I can answer the fiber fraction one.  The only reason that is in the cfg file is to lower the amount of time the computer spends drawing the textures in.   So to get less blurries, just erase that from your entry entirely, as adding that section in with any number below 1 will result in blurs.

Hopefully others can answer your other questions  ;)

That's not quite right. When you remove that line FSX sets the value to 0.33, so if you insert it and increase above 0.33 you will be fixing te blurries as you are increasing the omputers time to work on the next frame. at 0.33 33% of the computers time will be spent workng on a frame before AI, weather, turbulance etc. with a value of 0.8, it spends 80% of the time

So with my specs, will I get less blurries taking out the fiber line or keeping it and putting 50? (take out the FPS equation!)