Lightwave calculate..............................

[AmigaNewTek]

Well,

during my lightwave discovery, i noticed that while the rendering support the multithreading a multi cpu, the dynamics doesn't support this.

I've put some objects on the scene, with some emitters... but the calculating is taking almost 50 Hours!!! .... and still calculating...
But this is the surprise: using the task manager, i noticed the LW process uses only 25% of one CPU present in my quad core setup. ???? Why? Moreover, the LW windows seems to be freezed (not responding). If i click with the mouse on the main layout windows, keeping the dynamics and calculating windows open, i see the calculation is going on. Why LW doesn't make full use of the system resources?

Thank you.

[meshpig]

AM

... "50 hours and still calculating": Ctrl/alt to cancel calculate.

- Check the settings, I can't bare the thought of you slumped over the desk on the third day.

m8/

PS. just try something simple like a sphere with softFX moving as x=1, x=2, x=1 over 60 frames (wobble)_ Calculate and ... should take all of 3 seconds.

[AmigaNewTek]

Thank you.

I the calculation is taking so long... imagine the rendering
8~8/:sleeping:

[inakito]

could u upload the scene?

[AmigaNewTek]

I can't upload the scene. It's too big. However, in the scene there are 4 emitter, simulating meteors. If only LW used the multicore for this kinf of calculation :(

[AmigaNewTek]

PS. just try something simple like a sphere with softFX moving as x=1, x=2, x=1 over 60 frames (wobble)_ Calculate and ... should take all of 3 seconds.

It does this with a simple sphere. But my scenes is almost 700 frames long with 5 emitters. The calculation period grow up at every frame.

[AmigaNewTek]

I tried other scenes, with low polygons and objects. It's seem the dynamic calculations are done by one processor only, that uses only 25% Cpu power. I think that a complex scene, with many dynamic could take months to calculate. Is this a bug? Do the NewTek programmers aware of this?


I hope they resolve this issue.

Thank you

[meshpig]

I tried other scenes, with low polygons and objects. It's seem the dynamic calculations are done by one processor only, that uses only 25% Cpu power. I think that a complex scene, with many dynamic could take months to calculate. Is this a bug? Do the NewTek programmers aware of this?


I hope they resolve this issue.

Thank you

AmigaN

Something else must be wrong??? ... 700 frames is nothing, barely enough. Either your settings are way out of whack and it's not calculating anything or the aliens have assumed control of your machine?

- Mac or PC, what operating system, processor speed, etc??

I think if you just think through the settings ie. number or particles, lifespan, how they're being emitted from what etc. you'll probably sort it out. Hit ctrl /alt if the calculation goes on without results and modify the settings. THen try again.

Cheers

m

[3DGFXStudios]

hahaha ..... Ctrl/alt to cancel calculate. when does that work???? Never!

But amiga newtek, you can make also cool asteroids/meteors using volumetric lights.

[AmigaNewTek]

@3DGFXStudios

How can i do Asteroids with volumetric Light? Could you post an example.

However, the same scene on a single P4@ 2,8 ghz, takes about 92-99 % of the processor power. Why in a quad core the same scene takes only 25% of one core?

[3DGFXStudios]

You can do it like this. Take a look at the Volumetric light presets. And the sample scene I attached...

[AmigaNewTek]

Cool!!! Thank you.

BTW, it's not like the kind of image i want to realize.

Look at the attached pictures:

The asteroids are animated. I can't animate a single asteroids, tho...
Moreover, all the the asteroids look like the same. There no way to move each single object and do different any asteroids from each others?

Thank you

[3DGFXStudios]

An other thing you can do is: Make a flock of Little poly objects driven by dynamics. If you put you hypervoxels on these objects the have all a different shape. You can make the meteors by taking a cube and jitter it. (shift+j (?)) Do that a few times and you have your meteors.

Or make a few displaced objects and clone them and use HD instance to duplicate them. That's what I did for my movie (see Attachment)

:thumbsup:

[AmigaNewTek]

Wow!!! Extremely well done.

How you achieved such result? The Smog/Fog/Dust?

very cool!!!

[3DGFXStudios]

Thnx for the compliment. What I did was: I created 3 different discs made out of points. then I connected 3 different meteors to the different discs using HD-instance and I applied Hypervoxels to one of the discs for the smoke/dust. The rays you see are just the particles catching light and casting shadows. After that I composited something in fusion.

[AmigaNewTek]

Very cool indeed. Excellent work. I will try your suggestion asap. I've noticed that the all the meteors are rotating. I've get all the meteors rotatin in one direction (the entire hypervoxel object, not the single meteor itself). Very nice.

[3DGFXStudios]

In hd instance you can give them a random rotation and scale per channel. :)

[AmigaNewTek]

In hd instance you can give them a random rotation and scale per channel. :)


I don't have HD istance. It's a free tool?

[AmigaNewTek]

I found another issue in the dynamics (is this is really an issue). After the LONG CALCULATIONS is finished, i save the project and all the object.... but if i reopen the scenes, listen.... i have to recalculate again!!!!!! No, please.......

[AmigaNewTek]

I mean in the previous post: (if this is really an issue).

[3DGFXStudios]

No HD instance is not free. You need to save you calculations under the "file" tab in the dynamics property's

[AmigaNewTek]

Sigh. As a newbie i don't know all the feature of lightwave. However, it's seems that the uses of the 25% only processors power on a quad core (only one proc) it's a bug. In a single core LW takes 92 to 99 percent of the processing power, resulting more fast.

Thank you for your help. I appreciate.

[3DGFXStudios]

Not everything is multitreathed. So that's why your proc is using 25%. So it's not a bug

[AmigaNewTek]

What can do those who needs to press the calculate button in an a heavy scene?

IC!, i've used a "Simple" scene with 4 emitters and a couple of hypervoxel and the calculation reach 60 hours and have not finished. I pressed CTRL. I assume that for sure there are scenes more complex that mine!!!!

[evolross]

What can do those who needs to press the calculate button in an a heavy scene?

IC!, i've used a "Simple" scene with 4 emitters and a couple of hypervoxel and the calculation reach 60 hours and have not finished. I pressed CTRL. I assume that for sure there are scenes more complex that mine!!!!

What are your emitter settings? You may have way too many particles being emitted for what you're trying to do. I've found, a lot of times you actually don't need as many particles as you think. This slows down calculation times and render times.

And dynamics calculations are currently designed to only use a single core. So no matter how many cores you have on your machine, it will ultimately only use one (for right now ;))

[AmigaNewTek]

@3DGFXStudios

I've added a smog/dust kinda object. How to animate this object? What Should i do?

Thank you.

@evolross

Thank you for the info.