Textures cause extreme FPS lagging

[CN_Lurker_1011 1]

T100 

My custom vehicle 1 

34600 faces in totall ( 58000 tris)

2*  4096*4096 textures

2* 2040-2048 textures

1*  1024*1024 textures

1* 512*512 textures

More faces, high resolution textures , But high FPS 

 

My custom vehicle 2 

18377 faces in totall ( 31388 tris)

No  4096*4096 textures

3* 2040-2048 textures

1*  1024*1024 textures

1* 512*512 textures

 

less faces lower resolution textures, But unbelievable FPS

 

 

FPS would be increased if i remove all the textures

 

If i work in a wrong way, both of my custom vehicles could encounter same problem, but not 

 

 

 

 

[da12thMonkey 1943]

How many "sections" does the model show for each LOD in object builder?

Some parts of the model may be creating separate draw calls even though they use the same texture and material, because the texture is divided in different sections

[Jackal326 1181]

3 hours ago, da12thMonkey said:

How many "sections" does the model show for each LOD in object builder?

Some parts of the model may be creating separate draw calls even though they use the same texture and material, because the texture is divided in different sections

To elaborate a little on that;

A section is created when you assign a texture to it, and is again increased in number if you apply different rvmats and alpha-layering to different parts, even though they use the same texture. You also add new sections if you copy and paste model parts from one LOD to another.

To cut down on the number of sections/draw calls you can select the entire model that uses each texture (and assuming they use the same RVMAT), by going to Window -> Resource Library -> (in the new window that opens) Current LOD -> hold CTRL and double-click a texture.

Then, in the main Object Builder window the parts of the model using that texture will be selected.

Then press CTRL+SHIFT+END to move all of those faces to the bottom of the Alpha sorting then press E. 

Then in the new window press Apply and close the window. You should now see the number of sections has dropped as all of those faces were presumably on separate sections and are now on one.

[CN_Lurker_1011 1]

1 hour ago, Jackal326 said:

To elaborate a little on that;

A section is created when you assign a texture to it, and is again increased in number if you apply different rvmats and alpha-layering to different parts, even though they use the same texture. You also add new sections if you copy and paste model parts from one LOD to another.

To cut down on the number of sections/draw calls you can select the entire model that uses each texture (and assuming they use the same RVMAT), by going to Window -> Resource Library -> (in the new window that opens) Current LOD -> hold CTRL and double-click a texture.

Then, in the main Object Builder window the parts of the model using that texture will be selected.

Then press CTRL+SHIFT+END to move all of those faces to the bottom of the Alpha sorting then press E. 

Then in the new window press Apply and close the window. You should now see the number of sections has dropped as all of those faces were presumably on separate sections and are now on one.

 

thanks a lot, it worked

it is the first time i'd heard of " sections" after i made 8 vehicles for my New PLA mod 

[Jackal326 1181]

8 hours ago, CN_Lurker_1011 said:

 

thanks a lot, it worked

it is the first time i'd heard of " sections" after i made 8 vehicles for my New PLA mod 

Might be worth just going back over the models to check their aren't any issues. I'm not implying that there are, just saying its worth checking 🙂

[x3kj 1247]

https://community.bistudio.com/wiki/Section_Count
unwanted sections can happen a lot when adding parts to a p3d or during copy paste inside p3d.