How to layer bump map and normal map?

[belmer]

Hi,

I'm using blender to create my model. Just a simple garment, lets say a shirt for example. So on my web application I loaded an image as a normal map which works perfectly. However, I wanted to have a little bit of depth or texture into the garment like a cloth/threads to make it a bit more realistic rather than a flat surface. So I thought of using bump map. And tried to repeat the bump map higher than the normal map. Which from my research should not work, because they need to somehow be on the same repeat values or the normal map takes higher priority than the bum map.

Few options I have in mind are the following:

1. Create a texture that has bump or depth already and use it as a normal map or
2. Add the bump map using blender and load as part of the 3D model (I'm not really sure how to do this)

Is there a best practice to do this?

[drcmda]

i think you'll have better luck in threes discourse forum. the react stuff remains the same, suspense + useLoader(THREE.TextureLoader, [url1, url2, ...]) but how exactly bump and normal maps work, i don't know that.