CPU: i510400 GPU: GTX 1650 [image] Is it reasonable to have a frame rate of 20+ for 1 million faces and 1600 draw Call? If I use an instanced mesh, the Draw Call is reduced to 800, but the frame rate is still 30+ [image]

There are many factors that influence on performance, faces and draw calls are one but they can’t tell the entire story. Are you using what kinds of materials? Post processing? Node materials? Have you checked the performance tab of your browser for the bottlenecks/GPU use time?

For having undergone this performance update for about 3 weeks now in my scene, I’d say the following: 1600+ drawcalls is just too high for an average performance rig. I have about 2k meshes in scene, 90%+ of which are instances. Yet they still (partly) generate draw calls. I found that anything of …

[image] carolhmj: There are many factors that influence on performance, faces and draw calls are one but they can’t tell the entire story. Are you using what kinds of materials? Post processing? Node materials? Have you checked the performance tab of your browser for the bottlenecks/GPU use time…

Thank you for sharing your experience, I plan to try to use Thin Intances to try to solve the problem of low frame rate.

If your system also has an integrated graphics chip then make sure that the browser process is latched to the high performance mode (ie the fast GPU). I’ve found that Edge, especially will often choose the power saving option and use low-perf GPU a lot of times. @mawa made a comment I also noticed …

[image] Thin instances vs parent/child Questions repro: https://playground.babylonjs.com/#NRNBMM#83 thin instances don’t work with children ? I was expecting the children to be instanced as well… It seems impossible to use thin instances, that would lose the hierarch…

1920x923 I’m not sure if that last number is a typo, but regardless you could try setting the resolution to a power of 2 in each part (wight, height). A non-pow2 resolution can slow down rendering as well

[image] Merging Meshes | Babylon.js Documentation Learn how to merge meshes in Babylon.js. Merging meshes can currently solve the performance problem of the current scene.

Rendering performance issues

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xiehangyun August 14, 2023, 3:30am 21

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Scene rendering performance optimization plugin based on instance object - Demos and projects - Babylon.js (babylonjs.com)

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Rendering performance issues

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