scriptJob which is driven by a camera

[busta]

Hi,

I want to make a scriptjob, which is driven by the orthographic width of a camera (of an orthographic one, of course).

To describe it exactly, I want to change an attribute of an object, when the user press the ALT button and the right mouse button, which changes the orthographic width of the camera (if you had the tumble tool unlocked), accoording to the orthographic width.

The problem is that the scriptJob is only evaluated if the user releases the mouse buttons, but I want that it is evaluated constantly.

Do you know, how to achieve this?

thx, markus

[joojaa]

Why do you need a scrptjob? cant n expression or a direct evaluation do the thing? It would get evaluated!

[busta]

The problem is that I get the value of an attribute, which is changed by the "normal" navigation (ALT + mouse buttons), only, if the user releases the mouse button.

To illustrate may problem:
Switch Journal of a camera to ON
(View -> Camera Settings -> Journal )
Look at your Script Editor
Zoom in the camera panel
You can see in the script editor, that you only get a value, if you release the mouse button

I would like to get the values constantly, that means, without releasing the mouse button

A expression or , for example, connect Attribute, doesn't solve my problem.

[joojaa]

In reply to:
A expression or , for example, connect Attribute, doesn't solve my problem.

im going to look into this... but youre probably right rolling the camera might be different

[markwilkins]

Yes, a script job is the way to do this. An expression that depends on user interaction probably will make your scene behave weirdly during batch renders.

-- Mark

[joojaa]

Well you can disable the expression with apre render script and put it back on witha apost render script!

but yeah... sorry havent tested the feedback thing yet!

[joojaa]

alt moving cameras does execute direct connections and expressions with two notable exceptions.

textures do not update

and some mel commands do not evaluate (using mel in expressions is dubious anyway)
as for why script jobs wont work looka at the other discussions
.

[markwilkins]

sorry joojaa I have to disagree with you again

For stuff that's interactive only, and triggered by keystrokes, a script job might well be the best way to go.

The poster's talking about trying to reconfigure Maya's interactive behavior, not build some kind of expression thing into his scene...

-- Mark

[joojaa]

yes im avare of the differences between the two but i think ive bit mis understood what he wanted to do. (is the alt button hardcooded do you know?)

Ahh okay so wht he actualy wants to do is override the basic camera zoom function. so that an object would be affected by the alt middle mouse instead of zoom.

but The scripjob doesent give interactive feedback when you dot scrolling no matter what! thats a fact. Or you could perhaps force this but in any case if you could (which you cant) you wouldnt like the results anyway.

Ok so whatabout a combination of thesse two things? Asuming you could get the script job to run at the time you press the buttons.

let the script job connect an expression that then connects (for clarity scale for example). Now as you cange the zoom the objects scale in accordance (because the expression evaluates). then when you end a script job deletes the expression.

ok so the bove thing wont nesseserily work offcorse but... Its not the thing he wants exactly but its as close as you can come with mel i guess...

[markwilkins]

heh. Yeah, it's not easy to tweak things that much.

Plug-in time!!!

-- Mark