Hello,
I am trying to know if it is possible to know the resolution of a texture because sometimes my textures are resized (THREE.WebGLRenderer: Texture has been resized from (10000x5000) to (8192x4096) )? Maybe, there is a field in textures but I don’t find it 
Thanks you in advance,
Alex
Textures have an image property that contains the textures’s dimensions (width and height). Keep in mind that you can first access this property when the texture has fully loaded (so when the onLoad() callback fires).
BTW: When a texture is resized, the original image is not changed since the resize happens with an internal canvas element in the renderer. So it’s not possible to access the resized dimensions of a texture. Use POT textures or set Texture.minFilter to THREE.LinearFilter to avoid the resize. Or use a WebGL 2 rendering context.
Thanks for the reply, it’s really helpful and allow me to gain some precious research time !