using Blender 4.0
This is how I created the circle:
pressed on Shift + A keys in the opened menu selected Mesh > Circle.
to move the circle up only one axis only up I first selecting the circle by just clicking on the circle then pressed on G after that pressing the axis, I want it to move on so in this case Z then just moving the mouse up down and to keep the circle in that position click on the mouse left button.
now while the circle is selected, I pressed the TAB key to enter the edit mode and it's showing me all the vertices of the circle.
now to add more vertices I clicked on the mouse right button and in the opened menu I selected Subdivide few times to add as many as I need more vertices to the circle.
next I did is pressed the A key to select all vertices then pressed W key and in the opened menu clicked on Subdivide many times.
now I want to export it and use in unity3d:
I clicked in the menu on Mesh > Notrmals > Recalculate Outside
what it does is open a window in the bottom name > Recalculate Normal if I expand the arrow there is a checkbox inside say Inside.
then in the menu I did: File > Export > FBX (.fbx) gave it a name and export it.
I dragged the new created file to my unity3d editor and then to the hierarchy but no circle and in most of the cases I'm getting warning:
Can't calculate tangents, because mesh 'Circle' doesn't contain normals. and in some cases that it didn't show the warning still it didn't show the circle.
what am I doing wrong ?