Python scene access list

[ivaylo.ivanov]

Ok, will add this to our "todo" list.

[CGMas]

Ok, thank you !

I have an other question to ask :
How could we "interpolate" in post translate python script ?

Like in this :


Node pSphereShape1@node {
transform=interpolate(
(2, Transform(Matrix(Vector(1, 0, 0), Vector(0, 1, 0), Vector(0, 0, 1)), Vector(0, 0, -3.228602899708137))),
(3, Transform(Matrix(Vector(1, 0, 0), Vector(0, 1, 0), Vector(0, 0, 1)), Vector(0, 0, -6.457205799416276)))
);
nsamples=interpolate(
(3, 0)
);
}

[CGMas]

Hi,

I would like to thank you again for lists in post translate python script, the vrend abort command !
It works really well and is really helpfull !!!

By the way, what about my previous ask regarding interpolation ?*

Thanks,

Max

[vlado]

By the way, what about my previous ask regarding interpolation ?

That one is a bit more difficult to do and we need to think it through a little first.

Best regards,
Vlado

[CGMas]

Ok,
I understand very well. I knew that one would be harder to do.
So we might have a workaround that could work for us and solve a lot of things :
Having the possibility to add a string or a StringIO to the addSceneContent variable rather than a scenefile !!!

What do you think about this ?

Thanks,

Max

[CGMas]

Hi,

I would like to know if there is any news about my previous asks ?
Also, I have another request about lists in python scene access.
It seems that we cannot access to positions in ramps.
Here is an example:

def postTranslateScript():
import vray

ramp = vray.utils.findByName('ramp1')[0] #(Type is 'TexRamp')

positions = ramp.get('positions')
print positions # prints "[0.0, 0.5, 1.0]"

# This line warns: // Warning: line 1: Invalid value given for parameter "positions" in plugin "ramp1". //
ramp.set('positions', [0.0, 0.5, 1.0])

Thanks in advance ,


Max

[CGMas]

Hi,

I would like to know if there is any news about my previous asks ?
Also, I have another request about lists in python scene access.
It seems that we cannot access to positions in ramps.
Here is an example:

def postTranslateScript():
import vray

ramp = vray.utils.findByName('ramp1')[0] #(Type is 'TexRamp')

positions = ramp.get('positions')
print positions # prints "[0.0, 0.5, 1.0]"

# This line warns: // Warning: line 1: Invalid value given for parameter "positions" in plugin "ramp1". //
ramp.set('positions', [0.0, 0.5, 1.0])

Thanks in advance ,


Max

Nearly a year since I have asked that one.
Maybe now there's an answer to that question ?

Thanks a lot,

Max

[vlado]

I think this was fixed a long time ago, though I have to give it a try in newer builds.

Best regards,
Vlado

[CGMas]

Hi Vlado,

Thanks for your answer.
I've just tried and it still doesn't work with Vray 3.00.01.
I might need to try with a nightly build...

Kind regards,
Max

[CGMas]

Hi Vlado,

Any news about that ?

Cheers,

Max

[ivaylo.ivanov]

Hm, this is a special parameter. It can act like a list of floats, but the python scene access doesn't know that. We can make it work in this way:

from vray.utils import *

ramp = findByName('ramp1')[0]
positions = ramp.get('positions')
texFloat1 = create("TexFloatOp", "rampPos1")
texFloat1.set("float_a", 0.5)
texFloat2 = create("TexFloatOp", "rampPos2")
texFloat2.set("float_a", 0.0)
ramp.set('positions', [texFloat1, texFloat2])

Not sure if such verbose format works for you...

[CGMas]

Yes, it would be great if it works that way !

[ivaylo.ivanov]

Ok, this should work with the nightly build from today.

[CGMas]

Awesome !
It works perfectly.
Thanks a lot !

[CGMas]

Hi,

Another list I have difficulties to deal with is the object select "ids" list.
If I do something like this:

import vray.utils

obj_sel = vray.utils.findByType('RenderChannelObjectSelect')[0]
before_ids = obj_sel.get('ids')


obj_sel.set('ids', [3, 1] )
after_ids = obj_sel.get('ids')

print before_ids
print after_ids

Only the first value of the list is set.

Maybe I've missed something...

Thanks,

Max