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Vue F.A.Q (Last Updated: 2024 Nov 26 6:57 am)



Subject: River watter rapids SLOW AS SHIT TO RENDER!


Zak666Williams ( ) posted Mon, 21 January 2008 at 12:41 AM · edited Tue, 26 November 2024 at 3:50 PM

I ownloaded some river rapids from the Vue site you regester to,
and it takes Forever to Render 1 frame!

dose anyone else have this problem?

Also is it posible to animate these Rapids for waves and stuff?

Thanks.


silverblade33 ( ) posted Mon, 21 January 2008 at 7:42 AM

Well I haven't got them, but I would think that since they are water objects, yes they WILL be slow
never noticed how slow water is to render?
Then ad more water in front of it and..it slows even more.

good looking water is slow to render

"I'd rather be a Fool who believes in Dragons, Than a King who believes in Nothing!" www.silverblades-suitcase.com
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thefixer ( ) posted Mon, 21 January 2008 at 9:49 AM

What silverblade says!!

Once the render is past any water it speeds up pretty quickly!

Injustice will be avenged.
Cofiwch Dryweryn.


Paula Sanders ( ) posted Mon, 21 January 2008 at 12:00 PM

Water is basically slow to render. Some is faster than others. Try out different water mats and find a happy medium. When I find one I like I save it. Also try working with a particular mat. Go into the function editor and eliminate some of the various funcions if you can. Sometimes one will cause the render to be unusually slow. I am not as versed as others so I cannot list some of the slower ones. Maybe someone will provide examples. I sort of know-guess when I see them.


Zak666Williams ( ) posted Mon, 21 January 2008 at 12:59 PM

thanks, I'll give it a shot.


forester ( ) posted Mon, 21 January 2008 at 1:03 PM · edited Mon, 21 January 2008 at 1:04 PM

Attached Link: http://www.cornucopia3d.com/purchase.php?item_id=4587

No, it is not possible to animate those particular rapids. I have some that can be animated via Python scripting, but if you don't like these rapids, in terms of render time, you really won't like the animated version. The python script takes the first mesh and deforms it in each animation step according to the way if which the real water would change shape, but each frame still needs to be rendered, of course. As the others have said, since these water rapids are accurate scale models of real moving water and foam, they are necessarily complex meshes. They get their realistic appearance from the way light refracts within the meshes - and these light calculations take a long time to compute, particularly in Vue 6, with its more accurate light engines. The foam mat I provided in this package is about as fast a render mat as I could come up with. It is about 13 times as fast as the normal Vue 6 foam mats. (Cold comfort, I know!) But, mostly the source of long rendering times is the need to calculate how light bends within the water bodies, based on the sunlight or external light source. This is the "price" of physically accurate, realistic looking water, as far as I know. For your animation, you might do better to consider something less physically accurate. If the focal point of your animation is not the water anyhow, why not try something less realistic. Here are three suggestions. One - why not create a simple wrinkly terrain with the complexity of the terrain mesh made as low as possible, give it some water material, and try deforming the material at each animation step. Two, you would certainly have much better luck for your animation with wabe's excellent "Sea Splashes," which might be better labeled as "spray" in the English language (link is given). Three, you also might have better luck with Monsoon's Seascape packs, which are more painterly and more suitable for medium distances. I don't have any experience in attempting to animate Monsoon's products, however, so I am unsure of making this latter recomendation.



forester ( ) posted Mon, 21 January 2008 at 1:09 PM

As a minor aside, usually I jump in ASAP to try to help someone who needs help with any liquid in Vue, not to mention even sooner if it is one of my products that I should provide help with as an "obligation." But, I hesitated for at least a day. Poor language in the title usually indicates a "rant-in-progress" to me, and there's never much percentage in taking up that kind of thing. So, you have my apologies for the delay in response time.



Zak666Williams ( ) posted Mon, 21 January 2008 at 1:17 PM

Thanks for the Advice,
I've found it dificult to animate a ocean in vue eaven with a Fractral terrain.
I got a still right but  not moving right.

Also i want to focus detail like small waves (just before they die on the shore.)
eaven a still render of these rapids take 2 or 18 hours to render in screen size (16-9)

most tutorials i find on the net about oceans are for stills.
are there any Animation tutorials for vue?

I'd like to create a raging ocean and Calm topical ocean for a Tropical island.

Thanks.

Zak.


Peggy_Walters ( ) posted Mon, 21 January 2008 at 1:20 PM

Another thing to consider is your render settings.  New users like to use high settings in the belief that "more is better" ...  

What render setting are you using? 

http://users.tns.net/~mwalter1/Vue_Render_Settings.pdf

LVS - Where Learning is Fun!  
http://www.lvsonline.com/index.html


forester ( ) posted Mon, 21 January 2008 at 1:44 PM

Holy Cow! The rapids should not be taking 2 to 18 hours to render. Can you provide us with some information about your computer system? (PC or MAC, cpu, and RAM available, also which version of Vue that you are using?) Also, how many of the "rapids" models you are using in your scene?



martinjfrost ( ) posted Wed, 23 January 2008 at 2:15 PM

For what its worth i have in the past found that water features can be increadably slow to render, then i tried using the external render option (batch render) this did the trick!
This was a while ago. but it really speeded things up for me, so it might be worth a try for a single frame, i dont animate so i dont know if this is possible for an animation, I think water is the most difficult thing to get right in any 3d app.


AboranTouristCouncil ( ) posted Wed, 23 January 2008 at 8:41 PM

Content Advisory! This message contains nudity

file_398364.jpg

A few of my water based renders have taken a long time to render. I think my record is 144 hours when I was using Vue 5 way back when. It was of a surf environment, with a multitude of textures,  Eight lights (Some volumetric) Everything anti-aliased. Which, in retrospect, was not the most efficient way to go. The final result, although adequate, wasn't enough for me to show it in my gallery. (Picture attached) Keep thinking one day I'll go back to it and do it up right.

The water in this image took over forty hours:
http://www.renderosity.com/mod/gallery/index.php?image_id=1531205&member

...Insert some witty or thought provoking comment here...


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