Forum: Blender


Subject: Groups and point at how

ima70 opened this issue on Aug 04, 2006 · 5 posts


ima70 posted Fri, 04 August 2006 at 5:13 PM

Maybe this are fool questions, but I can't find the answer in the User Guide :blushing:

How do I group objects so I can move and scale them all together, or create a parent for a group of objects.

How can I Point a spot light or camera at an objects so if I move the object the light or camera follow it.

Is it posible in Blender?

Thank you.


dweomer posted Fri, 04 August 2006 at 6:34 PM

               
                                             The answer to both questions is use empties.
                             Make an empty the parent of all object's you wish to translate/rotate/scale together. Be aware that if you translate/rotate/scale each object seperately, it will translate/rotate/scale from the (parent) empty's center.

                             Likewise with lights and cameras, only parent the object on the empty, and parent the empty on the camera/light.  You can even do that to just a region or vertex of the object.

                            To simply parent any object to another object--select the objects you wish to form a hierarchy for---use "Control-P" or spacebar/Object/Parent/make parent. The last object selected will be the parent.


ima70 posted Fri, 04 August 2006 at 7:20 PM

Thank you dweomer, trying your sugestion I found that what I wanted was the track function, it's what I wanted for the camera and light, the empties is perfect for my first question, now I don't know how to "untrack", I can "unparent" but don't work in the same way to "untrack"
Sorry my english if I'm "inventing" words... :blink:


oldskoolPunk posted Fri, 04 August 2006 at 7:20 PM

In the latest version of Blender (2.42) we can create object groups. Just select the objects you want to group and press Ctrl-G. To select a group, Shift-Alt-RMB on any member of the group. The highlights will be green. Here is a link to the docs on Object Groups.

http://www.blender.org/cms/Object_Groups.755.0.html

Another way to make cameras or spots follow an object is to use the tract-to constraint. Select the camera, then shift-select the object, then press Ctrl-T and choose Track-to constraint.

As usual there are many different ways to do things in Blender :)


oldskoolPunk posted Fri, 04 August 2006 at 7:24 PM

OOps we were typing at the same time :)
The constraint is in the camera's or light's object buttons (F7) Just click the little x to loose it.