Too long to load (.irr) scene

[st0ph]

Hello Irrlichters
I have created a .irr scene, but it takes about 3 minutes to load when I use it in the game,
so I'm asking is there a way to speed up the loading of my scene, and if not is
there a way that I could play an animation or a video while my program loads the scene !

Thanks in advance.

[ACE247]

First, please describe what exactly you do/have in a scene that takes so long. There is probably alot of optmization to be done.

[st0ph]

@ACE247 I have modeled my school in Blender, after that I used CopperCube to add lights and other effects then I exported the scene to a .irr file (35 Mo) which I loaded into my game with :

Code: Select all

sceneManager()->loadScene("terrain.irr");

[sudi]

@ACE247 I have modeled my school in Blender

i see..

anyway how many lights are in the scene? how big is the model? 35Mo is that supposed to mean 35mb? How many textures? how big are the textures?
if your model file is 35mb and you create an octree from it, it might take some time to process it. you might want to break up the mesh into smaller parts.

[st0ph]

Yes I meant 35 MB (in french we say Mega Octet), and I have about 50 lights and the textures are not big (300 KB max).

[sudi]

well since its a building an i guess you modeled the interior as well. So the thing is, thats normaly not how its done. You have probably a lot of redundant meshes in there. i would suggest you take the building and place everything inside it with the sceneeditor. this should speed up loading. after that you probably want to batch rooms together to speed up rendering. or you create a portal scenemanager.

[st0ph]

Actually I modeled just the outdoor of my school : the garden, the buildings just from the outside and some stairs !

[sudi]

you got a screenshot(s). besides what i said about chairs applies to plants as well and every other repeating geometry

[st0ph]

here is some screenshots :











So you mean that I should add the repeating geometry elements programmatically and not all in irr file ?

[hendu]

None of the images work here.

Some points:
- .irr is a XML file. Those are going to load slow.
- have you profiled where it spends its time?

[st0ph]

yes indeed
during the loading I noticed that it takes more time to load the grass and the floor textures. which is normal I had to cover all the floor with textures :3