Large lagging on mouse movement with SketchUp Dae model

2
votes

I’ve designed a 3D model in SketchUp and I didn’t use any texture. I’m faced with an issue related with lagging on mouse move and rotate process. When I exported the model by Dae format and imported to the three js online editor (three js online editor) mouse movement is being very slow. I think it occurs fps drop. I couldn’t understand what’s problem with my model that I designed. I need your suggestions and ideas how to resolve this issue. Thanks for your support. I’ve uploaded 3D model’s image. Please take a look.

Object Count: 98.349, Vertices: 2,107.656, Triangles: 702.552

SketchUp Model

1
three.jswebglsketchup

1 Answers

2
votes

Object Count: 98.349,

The object count results in an equal number draw calls. Such a high value will degrade the performance no matter how complex the respective geometry eventually is.

I suggest you redesign the model and ensure to merge individual objects as much as possible. Also try to lower the number of vertices and faces.

Keep in mind that three.js does not automatically merge or batch render items. So it's your responsibility to optimize assets for rendering. It's best to do this right when designing the model. Or in code via methods like BufferGeometryUtils.mergeBufferGeometries() or via instanced rendering.