SetRewind

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On 04/12/2004 at 08:18, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   9.012 
Platform:   Windows  ; Mac  ;  Mac OSX  ; 
Language(s) :     C++  ;

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Please define what SetRewind is and what it is meant to do.

When it is called TP Particles update correctly. Plugin never get called ( unless I add an EventAdd which cause the current frame to update to it's current state ). What is TP Particle Scene Plugin seeing that the Plugin Object isn't? I think NET maybe prerolling using this function except the ObejctData functions are not notified.? Are they? Somewhere? Should I be writing another plugin to read the rewind and properly update my objects? Trying that now.

Regards,
darf

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On 04/12/2004 at 18:56, xxxxxxxx wrote:

Well, it seems that the NET preroll acts exactly the same as using the SetRewind function in C4D ( I am assuming NET uses SetRewind for its preroll ). The problem is that SetRewind only seems to cause tags to be evaluated. Even if I us my ForceEvaluate tag that evaluates op->SetDirty( DIRTY_DATA | DIRTY_MATRIX ) the object is never evaluated. This makes the preroll not so useful IMHO. So, now, I am assuming that I have to write a tag that messages the object so that the object will update through a different method. Abstraction, a beautiful thing. Still, any information on how this should work would be helpful to the development community. Is it true that NET does not preroll objects?

darf

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On 05/12/2004 at 03:45, xxxxxxxx wrote:

sorry, cannot help but I would be interested in knowing this too.

thx

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On 05/12/2004 at 03:52, xxxxxxxx wrote:

a second thought, have you called AnimateDocument() or AnimateObject()? Not sure if this can be a help but might be (maybe also the problem for the preroll?) as when rewinding, the doc may not be notified of the animation changes...

just a guess but let us know if it works. I am not at home to check myself (at my parent´s house :).

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On 05/12/2004 at 06:27, xxxxxxxx wrote:

I am not the one calling it. This is relating to NET which seems to call SetRewind. Trying to figure out how to respond to it as no object seems to be made aware there is a preroll. Fun.

Regards,
darf

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On 05/12/2004 at 10:38, xxxxxxxx wrote:

oh sorry, my fault then. Yeah sounds like fun. Then I am still interested in knowing the solution.

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On 06/12/2004 at 07:25, xxxxxxxx wrote:

Good morning MAXON,

Is it true that the preroll in NET only informs tags?

If there is a way for the obejcts to be aware of the preroll this would be very helpful, thank you.

Regards,
darf

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On 06/12/2004 at 15:46, xxxxxxxx wrote:

Good morning to you too!
I haven't bothered checking in NET, but it does seem true that the preroll when doing a regular external renderer only includes tags. (It doesn't even include deformers with CheckDirty() implemented.)
I'm investigating whether there's a workaround and will get back when I know more. (Btw, did you get my mail with the XYZ scene? I'm not sure which email address to use.)

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On 06/12/2004 at 16:23, xxxxxxxx wrote:

I didn;t think that CheckDirty worked at all for deformers.? Maybe that was generators? The preroll thing is a real pain.

The XYZ scene, found inconsistencies in two spots. I can provide scenes but I think they are meanlingless. If a pseudo algorithm was posted we could implement it and go on to more important things. 9-)

Regards,
darf

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On 07/12/2004 at 03:52, xxxxxxxx wrote:

Unfortunately the preroll behaviour is by design. I've posted a suggestion to implement a way to request prerolling for objects as well.There are no suggested workarounds. I guess there might be something possible using a tag somehow, though I'm not sure exactly what's the best way to do it.
Regarding the XYZ scene, a pseudo-pseudo algorithm (X=du, X=dv etc.) has been posted. I've requested a more detailed algorithm, though the current workload might make this a long process. Finding a scene that contradicts the currently posted algorithm might speed up the process.

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On 07/12/2004 at 08:58, xxxxxxxx wrote:

By design?

LOL, well, I guess they are designing for the 'prosumer', not the 'professional'. With all of the other SDK object glitches that were 'by design' I find alot of wasted time.

Thanks for the support effort.

David Farmer

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On 07/12/2004 at 09:11, xxxxxxxx wrote:

Since it was stated this was 'by design' I would like MAXON to explain why. This does not seem correct. Yes MAXON, your being called on it. Explain.

David Farmer

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On 07/12/2004 at 09:13, xxxxxxxx wrote:

Regarding the XYZ scene, a pseudo-pseudo algorithm (X=du, X=dv etc.) has been posted. I've requested a more detailed algorithm, though the current workload might make this a long process. Finding a scene that contradicts the currently posted algorithm might speed up the process.

Ok, how is MAXON evaluating DU/DV. Offer that algorithm, I will implement it and then we will see where the differences lie.

Regards,
David Farmer

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On 08/12/2004 at 01:08, xxxxxxxx wrote:

Hmm, the being of MAXON called on it? Sounds a bit philosophical... ;-)
When I say "by design" it usually means "not a bug", not much more. The reason for the design was perhaps that the need for prerolling objects was not foreseen, or simply forgotten. It would have been a bug if it was meant to preroll but didn't. Nothing of this of course changes the fact that it doesn't preroll, nor does it mean that it never will.
I'm investigating the XYZ issue.

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On 08/12/2004 at 06:45, xxxxxxxx wrote:

Thanks Mikael,

The 'called on' statement was more confrontational targeting the programmers. It was a 'come on, WTF are you wasting my time for!?' kind of thing. When you are staring at three creative content jobs, three large software development projects, and a personal life, little things that eat up weeks of your time just aren't good. I don't feel that should have gotten through beta as T had brought this up before and there was never a good resolution. I had to figure out this on my own as this rather large hold appeared nowhere in the docs. NET needs some love. Just one professional users opinion.

Thank you for your effort.

Regards,
David Farmer