Trying to work on a product configurator with a GLTF model, if I update model.material.map values for model.material.normalMap, model.material.roughnessMap, and model.material.metalnessMap all seem to have their scale and intensity levels from Blender changed.
Is there something linked about these values when I don’t set a new material and just update the material.map?
When changing color textures (e.g. map or emissiveMap) it necessary to configure the correct encoding for the texture like so:
texture.encoding = THREE.sRGBEncoding; // sRGB color space
In any event, you have to configure the following to honot the texture coordinates convection of glTF.
texture.flipY = false;
Normally, GLTFLoader does this configuration automatically. If you change textures, you have to do this by yourself. More information in this guide (section Textures):
https://threejs.org/docs/index.html#examples/en/loaders/GLTFLoader
We aren’t using sRGB encoding the (what is it linear encoding?) matches our actual output colors closer. flipY is set to false.
Before setting material.map:
After setting material.map:
Can you please try to perform the following copy of texture parameters before assigning the new texture?
texture.wrapS = oldTexture.wrapS;
texture.wrapT = oldTexture.wrapT;
texture.offset = oldTexture.offset;
texture.rotation = oldTexture.rotation;
texture.repeat = oldTexture.repeat;
sRGB encoding is automatically set by the loader and the recommended color space when displaying glTF models. I suggest you study a bit gamma, linear and sRGB color space to better understand the importance of this topic. There are a lot of existing resources available in the internet.