Improve rendering speed

Arash_Bagheri · August 17, 2020, 7:31pm

Hello everyone

This is my PG for 10 cube: https://www.babylonjs-playground.com/#ZEZLAT#39

In Final Project I have 4000 cubes, and the rendering speed is somehow slow, I tried instances and SPS,
I couldn’t use instances because of colorLerp and also I couldn’t use SPS because I need getBoundingInfo() of each cube, is there another way to use to optimize the speed of my Block Model?

Deltakosh · August 17, 2020, 7:59pm

wait did you check with @jerome for the bounding info?

Also why colorlerp is not possible? can you elaborate on that?

Arash_Bagheri · August 17, 2020, 8:08pm

Hi @Deltakosh
I don’t know how can I access to @jerome. Should I message him directly? @JohnK said that I cannot access to bounding info of cubes with SPS.
is it possible to colorlerp with instances?

Deltakosh · August 17, 2020, 8:18pm

Well for colorlerp, you have access to the buffer data so eventually you can do what you want with it

Arash_Bagheri · August 17, 2020, 8:20pm

this is my PG with instances: https://www.babylonjs-playground.com/#ZEZLAT#18
how can I access to the buffer data?

Deltakosh · August 17, 2020, 8:27pm

Well you should start from the video I did. I create specific buffer for instances to host their color:
https://doc.babylonjs.com/how_to/how_to_use_instances#custom-buffers

JohnK · August 17, 2020, 8:39pm

@aWeirdo said that

This is what I actually said How to use SPS correctly? - #16 by JohnK

Arash_Bagheri · August 17, 2020, 8:43pm

Sorry for my mistake, Yes @aWeirdo said that.
I’m so sorry for my mistake.
@JohnK and @aWeirdo , thank you so much for your helping, maybe I didn’t understand clearly your recommends.

Arash_Bagheri · August 17, 2020, 9:12pm

Thank you so much, I have done it. Thank you a lot.
is it possible to ask another question?

https://www.babylonjs-playground.com/#ZEZLAT#40

why when I selected each cube didn’t display bounding box?

Deltakosh · August 17, 2020, 10:32pm

you have error on the console

Arash_Bagheri · August 18, 2020, 6:01am

For me there is no error:

https://www.babylonjs-playground.com/#ZEZLAT#42

I can get the location of each cube but I don’t know why didn’t show boundingbox

jerome · August 18, 2020, 6:18am

Please read the doc : Solid Particle System - Babylon.js Documentation
You can access each cube bounding box in the SPS when enabling the intersections.

github.com

BabylonJS/Babylon.js/blob/master/src/Particles/solidParticle.ts#L97


 * Index of the particle in its shape id

 */

public idxInShape: number = 0;

/**

 * @hidden Reference to the shape model BoundingInfo object (Internal use)

 */

public _modelBoundingInfo: BoundingInfo;

/**

 * @hidden Particle BoundingInfo object (Internal use)

 */

public _boundingInfo: BoundingInfo;

/**

 * @hidden Reference to the SPS what the particle belongs to (Internal use)

 */

public _sps: SolidParticleSystem;

/**

 * @hidden Still set as invisible in order to skip useless computations (Internal use)

 */

public _stillInvisible: boolean = false;

/**

 * @hidden Last computed particle rotation matrix

Maybe should you turn this property to un-hidden in the code comment …?

Arash_Bagheri · August 18, 2020, 10:47am

Thank you so much.

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Improve rendering speed

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