Thomas de Groot <tho### [at] degrootorg> wrote:
> OK. How about this?
>
Thanks, I will understand.
I doubt that I will be able to study it. :(

Post a reply to this message

On 21-9-2014 15:41, LanuHum wrote:
> Thomas de Groot <tho### [at] degrootorg> wrote:
>> OK. How about this?
>>
> Thanks, I will understand.
> I doubt that I will be able to study it. :(

Don't hesitate to ask if in doubt, though.

Thomas

Post a reply to this message

Thomas de Groot <tho### [at] degrootorg> wrote:
> On 21-9-2014 15:41, LanuHum wrote:
> > Thomas de Groot <tho### [at] degrootorg> wrote:
> >> OK. How about this?
> >>
> > Thanks, I will understand.
> > I doubt that I will be able to study it. :(
>
> Don't hesitate to ask if in doubt, though.
>
> Thomas

Thanks!
Problem in English which I don't know.
I translate your messages, using an online translator of an intenet.
Therefore it is difficult to understand even an overall picture:
Why HF how HF influences mesh is used is a secret.
I still will try to study example.
Probably, time is necessary to understand.
I will ask questions if I will be able to start understanding though something.

Post a reply to this message

On 21-9-2014 17:39, LanuHum wrote:
> Therefore it is difficult to understand even an overall picture:
> Why HF how HF influences mesh is used is a secret.

I think those are basic concepts, also in Blender?

The /normal/ of a point on a surface is the vector /perpendicular/ to 
the surface (see also the Docs: paragraph 2.3.5.2). Using trace() you 
can get the normal at a certain point. Knowing the normal, you can 
calculate the angle it makes with a horizontal plane, or the angle it 
makes with another vector around an axis.

Thomas

Post a reply to this message

Thomas de Groot <tho### [at] degrootorg> wrote:
> On 21-9-2014 17:39, LanuHum wrote:
> > Therefore it is difficult to understand even an overall picture:
> > Why HF how HF influences mesh is used is a secret.
>
> I think those are basic concepts, also in Blender?
>
> The /normal/ of a point on a surface is the vector /perpendicular/ to
> the surface (see also the Docs: paragraph 2.3.5.2). Using trace() you
> can get the normal at a certain point. Knowing the normal, you can
> calculate the angle it makes with a horizontal plane, or the angle it
> makes with another vector around an axis.
>
> Thomas

Thomas,thanks.
I started understanding your mechanism.
But, I had an idea to use means of Blender (force field : wind) to do without
excess mathematical calculations.
Wind is applied to particles, but there is no realistic bend
It is necessary to find only the solution of a realistic bend of a trunk of a
plant also means of Blender

Post a reply to this message

Attachments:
Download 'force_field_wind.jpg' (99 KB)

Preview of image 'force_field_wind.jpg'

On 22/09/2014 18:07, LanuHum wrote:
> Thomas,thanks.
> I started understanding your mechanism.
> But, I had an idea to use means of Blender (force field : wind) to do without
> excess mathematical calculations.
> Wind is applied to particles, but there is no realistic bend
> It is necessary to find only the solution of a realistic bend of a trunk of a
> plant also means of Blender

Just a suggestion LanuHum,
Can Blender apply wind to cloth?
Can you create a stalk as a "cloth" with only 2 degrees of freedom and 
very stiff?
If so then you can apply "wind" to the "clothified"* stalk.

*Using Poser terminology.


-- 

Regards
     Stephen

Post a reply to this message

Stephen <mca### [at] aolcom> wrote:
>
> Just a suggestion LanuHum,
> Can Blender apply wind to cloth?

Yes.

> Can you create a stalk as a "cloth" with only 2 degrees of freedom and
> very stiff?
> If so then you can apply "wind" to the "clothified"* stalk.

I don't think that such option will be real for a large number of triangles. The
scene will be very heavy.
I am inclined to use only data, to process and write down the file

Post a reply to this message

On 22/09/2014 20:13, LanuHum wrote:
> Stephen <mca### [at] aolcom> wrote:
>>
>> Just a suggestion LanuHum,
>> Can Blender apply wind to cloth?
>
> Yes.
>
>> Can you create a stalk as a "cloth" with only 2 degrees of freedom and
>> very stiff?
>> If so then you can apply "wind" to the "clothified"* stalk.
>
> I don't think that such option will be real for a large number of triangles. The
> scene will be very heavy.
> I am inclined to use only data, to process and write down the file
>
>

Fair enough. It was just a thought.
Keep up the good work. :-)

-- 

Regards
     Stephen

Post a reply to this message

On 22-9-2014 19:07, LanuHum wrote:
> Thomas,thanks.
> I started understanding your mechanism.
> But, I had an idea to use means of Blender (force field : wind) to do without
> excess mathematical calculations.
> Wind is applied to particles, but there is no realistic bend
> It is necessary to find only the solution of a realistic bend of a trunk of a
> plant also means of Blender
>

Ah yes, that is an idea. Like Stephen suggested, something Poser also 
does. Only thing indeed is the bending.

It seems to me, looking at your image, that the rate of bending should 
be inverted. What I mean is this: Now, the angle goes from high at the 
start to gradually low towards the top, producing a concave-up bending 
shape. Could you /invert/ the calculation for this? Thus making a 
convex-up bending shape?

Alternatively, can you make the wind power in Blender to increase upwards?

Thomas

Post a reply to this message

Thomas de Groot <tho### [at] degrootorg> wrote:
>
> Ah yes, that is an idea. Like Stephen suggested, something Poser also
> does. Only thing indeed is the bending.
>
> It seems to me, looking at your image, that the rate of bending should
> be inverted. What I mean is this: Now, the angle goes from high at the
> start to gradually low towards the top, producing a concave-up bending
> shape. Could you /invert/ the calculation for this? Thus making a
> convex-up bending shape?
>
> Alternatively, can you make the wind power in Blender to increase upwards?
>
> Thomas

If to use sphere_sweep probably it is possible to reach desirable result of a
bend.
It is necessary to study influence of several wind modifiers for increase in
wind power from above.
If the result is effective then it is necessary to think of leaves. :)

Post a reply to this message

Attachments:
Download 'force_field_wind_render.jpg' (95 KB)

Preview of image 'force_field_wind_render.jpg'