How to add several volumes (cube, cylinder or sphere) in the same object?
Right-click on the cube you created in the previous chapter and choose the menu OBJECT > EDIT MESH ...
then select the CUBE, CYLINDER or SPHERE mode and click on the floor, even several times.
To choose a new texture, click on the square.
Still with the EDIT MESH window open,
pull items from your inventory into the world,
they will also be added to your object.
To pull/stretch these volumes, select the MOVE/STRETCH mode,
click on the point of a volume and arrows appear. You can choose :
- the MESH sub-option to move all volumes of the mesh,
- the VOLUME sub-option to move only one volume,
- or the ONE POINT sub-option to move only one point.
To delete a volume, select the MOVE mode, sub-option VOLUME,
click on a point of the volume and then click DELETE.
You can link several volumes together so that they become one by selecting LINK mode,
then clicking on several volumes while holding down the SHIFT key.
Select the UNLINK sub-option to separate the volumes.
If you've made a mistake, you can always click UNDO to go back a step, or REDO to go forward.
Also take a copy of your object in your inventory on a regular basis.
When moving an object, you will notice that sometimes the position arrows are far away from the object.
This is because your mesh is not centered in (0,0,0).
This is annoying for several reasons:
- when you take the object from your inventory it does not appear where you put it but much further away.
- the cost of small objects (less than 1 meter) with all textures in phantom material
(so no collisions with the avatar) is MUCH higher when they are not centered.
It is therefore recommended that you ALWAYS center your objects.
Some objects are not centered on purpose. For example, doors must be off-center to rotate correctly
because the axis of rotation of a mesh is always in (0,0,0).
To center, edit the mesh in MOVE mode, click on any point of the object,
then click on the CENTER button.