Performance & 3D Vitals

3D Vitals

To access the 3D vitals, on the top bar, click on export and then, select run test.

Metrics

You will see an overview of your scene. The export size is the size of your scene. If this value is really high, expect the loading time to be high as well. Right below, we have the metrics. It gives you a summary of what you have on your scene, the amount of objects, polygons, materials, audio assets, lights, post-processors and textures.

Export Size and Loading Time are estimates based on a slow internet connection. Actual values may vary.

Opportunities

Opportunities follow Metrics, which are suggestions for improvement with actions within them based on the current state.

Recommendations

We highly recommend you to always double check assets that you bring to Spline, such as images, audios and also 3D objects from other softwares. For images, always optimize them and try to keep the size low so it doesn’t affect the loading time. For audios, do not exceed 2MB and try using the sound library instead. Be mindful of the amount of objects in your scene and put a limit, for example, if you know that a certain object has a lot of polygons and materials, add 1 or 2 in your scene and not more.

Shadows

Another metric that is very important is the lights. Each object in your scene has the Shadow property. It can cast or receive shadows and this is performance heavy so make sure to limit the amount of lights in your scene and which object to be affected by it. Try working with less than 3 lights per scene.

Isolating objects

In this process, you might have an object in your scene that is performance heavy and you can’t find it or you don’t know which one it is. I recommend isolating each object in another file and running the test on each of them.