I load a image as the texture, but the texture looks very small

Questions
1

I load a obj model and I want to give every surface different images. Firstly,I test one image.But it looks very small. Does anyone know how it is?
image
image
my code
image

2

I suggest you import the OBJ in Blender, apply your textures and then export the result as glTF. If there are problems with UV coordinates, it’s much easier to fix this in a content creation tool than in code. You can use the following glTF exporter.

3

Thanks for your reply.But I want to change the texture image dynamically.Is there any good idea?

4

Ah, I see. But you can still use Blender in order to verify if the uv coordinates are correct.