Geometry Buffers cleanup

This topic has 10 replies, 3 voices, and was last updated 2 years, 3 months 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 coding. Fast and expensive.

If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

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.
Attachments:
1. dupeTest.zip
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 coding. Fast and expensive.

If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

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
Attachments:
1. console.png
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 coding. Fast and expensive.

If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
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 
```
Attachments:
1. slow.png
2023-02-22 at 3:50 am #60581

kdv
Participant

Maybe. Show your puzzles.

Puzzles and JS coding. Fast and expensive.

If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

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 coding. Fast and expensive.

If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
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