normal map optimization

Pottsie wrote:

Ultimately, the final map is optimized in Photoshop as 8 bit, which is converted from openEXR(32 bit float).

This method have no effect on optimization, It’s just let you get (in theory) more smooth normal map without artifacts, but in practise it gives nothing just took time. It’s can took place if you plan to paint displacement map using Substance Painter (or any other texture painting soft) but if you want to use it as clean normal map for your object, better to made a middle poly mesh without any map.

Pottsie wrote:

Would this method be wise to follow for Webgl in general? Or is there another preferred method for map optimization in Verge3D?

Use normal map in tilable maps set, use normal map if you will paint normal map in Substans Painter (or any other soft), use normal map for soft objects with more than 0.3 roughness value, but if you want to create a high glossy material for object better – to create a middle poly mesh without any normal map, or use with tilable normal map. It’s our usual pipiline for any webgl app.

Pottsie wrote:

So a smaller file size won’t help Verge3D at runtime?

Yes, it helps, but how resaving normal from OpenEXR to 8 bit png can smaller the size? You just can bake your normal directly into 8 bit png and you will get the same result without resaving.