In texture painting, I can't use draw tool to paint my object in 3D window.
First, I use a circle to build a object. Everything is all good at the beginning.
Finally I started to give it a texture painting. I creat a new material and save it, I can draw in left 2D window, but it doesn't reflect on my 3D object. If I use paint tool to draw colors on my 3D object in the right 3D window, it would not work normally, it would paint the whole object just like the fill tool, and the color is gray, is not like the color I choose.
I check where is the problem, I found in UV editing surface, there is no unwrapped mesh in the left window, I am wondering if this is the reason why I can't paint.
Then I choose the object, Press U to unwrap it, it seems nothing be changed.
Then I try to use another file to do the same painting, and it works, but in my circle object, it just can't be paint rightly.