Geometry Buffers cleanup

This topic has 10 replies, 3 voices, and was last updated 9 months, 2 weeks ago by kdv.

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2023-01-16 at 8:41 am #59598

scatman2513
Participant

Im cloning and deleting a lot of objects and after too much operations my application drops significant in fps. I’ve looked into the performance info and saw that my “Geometry Buffers” grows constantly. Like having 1 group of objects shows me 17, but if I clone it 30 times and delete it 30 times it grows to over 400.

I have a render function that should delete everything and draw it new. How do I delete everything before creating my structure again?

2023-01-16 at 8:47 am #59600

kdv
Participant

Show your code. And note that if you’re using the clone() function for a mesh its geometry is not cloned. The clone() function creates an instanced mesh sharing the original geomtry buffer.

In this demo the scene contains 80+ objects and only 2 geometry buffers
https://cdn.soft8soft.com/demo/blender/clone_object/clone_object.html

A geometry buffered can be removed from memory this way
object.geometry.dispose();

Puzzles and JS. Fast and expensive.

2023-01-16 at 2:14 pm #59611

scatman2513
Participant

It took me a moment to create a demonstration application for my problem. I’ve attached the .zip into my post. I have to say that I’m working with a plugin from gliftek to duplicate my objects.
The logic is built into the puzzle. If you take a look into the console output, then you can see how Gemoetry Buffers is growing while objects stay the same.

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2023-01-16 at 6:27 pm #59618

kdv
Participant

Your render() function creates 140+ new objects. I don’t see so many ones in the scene. That means there are a lot of unwanted duplicates.

The initial amount of the scene’s children is 9.

The cloned balls (expected) do not create additional geometry buffers but the matrix’s cubes do. Every time +16 buffers. If you remove a box creating from the render() function you’ll see that the geometry buffers amount doesn’t grow up. In fact, it’s not so much, the cube’s geometry contains only 8 points.

The cloned balls (not expected) create a lot of additional materials every time instead of sharing the initial material.

Finally, add this code to dispose of the old geometriy buffers

Puzzles and JS. Fast and expensive.

2023-01-24 at 5:52 pm #59823
scatman2513
Participant
This worked perfect. Thanks. Now I can duplicate and delete objects and “Geometry Buffers” isn’t growing anymore.

However, in my application (not the demo project I shared above) I still have performance issues and a look into the performance info shows me that “Textures & Render Buffers” is still growing. I also have these “N/A Textures” calculating up.

I tried to change your code to delete materials first but it had no effect..
```
VARS.allDupedObjects.forEach(function(name){
   const object = app.scene.getObjectByName(name);
   if (object && object.isMesh){
       object.material.dispose();
       object.geometry.dispose();
   }
});
```
Do you know what’s the problem here?
If you need a demo application I could create one end of the week.

best regards

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2023-01-25 at 3:04 am #59833
kdv
Participant
try this code
```
app.scene.traverse(function(object) {
  if (object.isMesh) {
    v3d.MaterialUtils.disposeTextures(object.material);
    object.material.dispose();
    object.geometry.dispose();
  }
});
```
Puzzles and JS. Fast and expensive.
2023-01-25 at 3:17 pm #59874

scatman2513
Participant

Thank you a lot @kdv. The issue is fixed now. After calling the render function nearly 100 times I always get the same numbers now in the performance info and the fps-drops have stopped now. Fantastic! Made my day = )

2023-02-22 at 2:07 am #60574
auriea
Customer
In my scene I’m also having this kind of problem. It’s just a normal scene with maybe 30 objects in it though. But it seems this red number goes up the longer I play my project, so I’m worried.

Would some variation of the above code help me make my scene faster?
```
--- Verge3D Performance Profile (1s) --- v3d.js:1:1066937
Scene Loading Time: 4872ms v3d.js:1:1066937
Asset Compression: yes v3d.js:1:1066937
FPS: 59 v3d.js:1:1066937
Render Calls: 8 v3d.js:1:1066937
Triangles Rendered: 51708 v3d.js:1:1066937
Geometry Buffers: 7 v3d.js:1:1066937
HDR Rendering: no v3d.js:1:1066937
Viewport Resolution: 3423x870 v3d.js:1:1066937
Pixel Ratio: 1 (current) / 1 (device) v3d.js:1:1066937
Image-Based Lighting: PMREM 512px v3d.js:1:1066937
Lights: 1 v3d.js:1:1066937
Reflection Probes: 0 (cube) / 0 (plane) v3d.js:1:1066937
Post-Processing: Render,ToneMapping v3d.js:1:1066937
Shadow Map: N/A v3d.js:1:1066937
Materials and Shaders: 10 v3d.js:1:1066937
    Verge3D_Environment_World - MeshNodeMaterial - 0ms v3d.js:1:1066937
    System Material - SphericalGaussianBlur - 0ms v3d.js:1:1066937
    CubemapToCubeUV - CubemapToCubeUV - 0ms v3d.js:1:1066937
    System Material - ToneMap - 0ms v3d.js:1:1066937
    CAVE-innerWall - MeshNodeMaterial - 0ms v3d.js:1:1066937
    leaf - MeshNodeMaterial - 0ms v3d.js:1:1066937
    CAVE-innerWall - MeshNodeMaterial - 0ms v3d.js:1:1066937
    branches - MeshNodeMaterial - 0ms v3d.js:1:1066937
    Earth-atmosphere - MeshNodeMaterial - 0ms 2 v3d.js:1:1066937
Total Render Time: 0ms v3d.js:1:1066937
Textures & Render Buffers: 846 v3d.js:1:1066905
    dusk2-1k.hdr - Texture - 1024x512 - RGBA v3d.js:1:1066937
    Trreoflife2Leaf.png - Texture - 256x256 - RGBA_BPTC v3d.js:1:1066937
    EffectComposer.rt2 - RenderTarget - 3423x870 v3d.js:1:1066937
    EffectComposer.rt1 - RenderTarget - 3423x870 v3d.js:1:1066937
    PMREM.cubeUv - RenderTarget - 1536x1536 839 v3d.js:1:1066937
    N/A - RenderTarget - 1024x1024 v3d.js:1:1066937
    N/A - RenderTarget - 512x512 
```
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2023-02-22 at 3:50 am #60581

kdv
Participant

Maybe. Show your puzzles.

Puzzles and JS. Fast and expensive.

2023-02-22 at 6:42 am #60585

auriea
Customer

@kdv Would it be possible for me to share the project to you privately? Since I’m not so familiar with Verge maybe I could do a (paid) consultation with you for this? I’d really like for this project to run well in the browser, but I’m probably doing all kinds of tricky things.

2023-02-22 at 10:32 am #60590

kdv
Participant

contact me at kdv [ at ] izh [ dot ] com

Puzzles and JS. Fast and expensive.
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