Blue axis tilt.

[Helen269]

Again in my latest model I've noticed blue axis tilt where the blue
axis becomes out of true and I guess the other axis become distorted
too. I suspect this may be something to do with the GE terrain toggle
in SU.

Is it best to leave the terrain toggle off all the time when modelling
and only briefly use it to check the alignment and GE ground depth of
the model's base and then turn it off again BEFORE correcting any
mistakes? Does turning on GE terrain toggle affect the axis so that
any further modelling with it turned on will result in a skewed model?

Has anyone else noticed the blue axis going off true vertical?

Helen

[matthiasbasler]

Hi Helen,

Toggeling the GE terrain on and off does no influence the axes.
Therefore you can (and should) toggle the terrain on on an early state
of modelling in order to find out where to place your model
vertically. Also you will not texture building walls correctly if the
terrain is off and therefore the "ground level" isn't where it will be
in GE later.

You can re-set the axes yourself, and most likely you did this
accidentally, with the result that the axes are not where they are
supposed to be. To correct this, just click on The "Axes" toolbar icon
or choose "Tools -> Axes" from the menu and reposition the axes so
that they are most suitable for your model. You can change this at any
time later again.

Note that you can position the axes at any direction, the blue axis
needs not necessarily showing "up".
Hope this helps.

[Helen]

Thanks Matthias, though I'm pretty sure that in the models I've noticed this
happening on I've set the axis once then not had any reason to reset them
yet the blue axis still went out of vertical. Creating one block over and
another block not over a piece of GE terrain seemed to make a difference
too.

Helen

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[matthiasbasler]

Helen wote:

> Creating one block over and another block not over a piece of GE
> terrain seemed to make a difference too.

It does indeed!
In this case it is not the axis that is out of vertical, but your
face.
If you have the terrain on and create a rectangle on the ground this
rectangle will not be levelled because the ground is not.
I always recommend to leave the terrain off as long as you draw the
ground plan of your building.

For details see my tutorial here:
http://docs.google.com/Doc?id=dgft4kkq_0f8fd79dh

[Helen]

> If you have the terrain on and create a rectangle on the ground this
> rectangle will not be levelled because the ground is not.

Yes, I have just tried this with a piece of very sloping ground and the
difference, which was subtle in the other model, is very noticeable here.
"Always model with terrain off". Good tip that I haven't seen written any
where. Thanks.

>For details see my tutorial here:
> http://docs.google.com/Doc?id=dgft4kkq_0f8fd79dh

Yes, I shall study that to see what else I may have missed. Thanks fo rthat,
too. :-)

Helen