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Number of Meshes
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@insulttogingery

Posts: 1

NGLNewbie

Tue, Apr 23 2013


Can having too many meshes/objects slow down performance?

I'm trying to display a cylinder that's cut into 128 pieces (copies of 4 distinct .obj files) and getting ~5fps. Is this to be expected?

If I cut out lighting effects it speeds up but is basically useless with how it looks.

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@dineybomfim

Posts: 571

NGLAdmin

Tue, Apr 23 2013


In response to: @insulttogingery

Real time render is quite expensive and it's an art in any kind of platform.

This is what we call "game techniques". You must remove all the kind of real time calculation and pass everything to the textures, even the lights and shadows.

The number of mesh is also important to the performance, however it's the 10th in the list of important things. You render will have this performance because the size of the mesh. Too close to the camera means the fragment shader will have a big job and with lights this job will be incredible high.

Search about render to textures and how textures is important when using game techniques.

BTW, 3D is the only thing that runs slowly on the simulator but runs faster on the devices. The simulator doesn't have the GPU acceleration as the device has.
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