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CMurray92

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Reply with quote  #1 
I have spent so much time waiting for my renderings to finish and it is really eating up on my time because t could be spent elsewhere. For most of the time I am not even using the highest rendering quality, its usually the default or preview rendering that takes about an hour. So when I want to actually render the highest quality it usually says its going to take 30 days to render.

What is going on and is there a way to make my computer render faster?

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C Murray
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bigstick

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Reply with quote  #2 
This question kind of makes no sense without some information about the kind of scene you are trying to render, your hardware specification and which version of Podium you are running.

There are lots of things you can do to improve render time.

No render will take 30 days! If you are rendering a scene that takes an hour with the default preset (forget about the preview presets, they will save you 5 minutes at most perhaps, but you won't ever end up with a usable scene) then chances are that you are doing something wrong, or your hardware isn't up to the job.

First of all, you need a 64 bit operating system. If you are using Windows XP, for God's sake upgrade and stop wasting your time - Windows 10 will be out soon! 

Next, you need at least 4Gb RAM. For larger or more complex scenes, 8Gb is a minimum. You need a fast multi-core CPU for good performance. If you have a Core 2 Duo - your machine is too slow. Get a Core i7. Your boss may not want to pay for it, but he's paying more for your time - or ought to be [smile]

Then you need to optimise your scene.

1. Don't add too much geometry. Check to see how many faces are in your model
2. Don't add too many lights. During the day, most of your lights should be off if you have strong enough sunlight. If you have too many light sources, render time will plummet.
3. Use Podium Tools to check your scene. In V2.5Plus, it will tell you how many faces are in the model
4. Don't overdo the reflective faces. Reflection (like transparency and lights) takes longer to render because there are more calculations involved. If you are using reflection on your walls and ceiling - stop it now [smile] It will make your render look awful and render time increase
5. Check how many components you are using. What we often find is people who have say a table with chairs, plates, glasses, maybe a vase and flowers and cutlery, and componentise it and duplicate 40 times in an interior. That's never going to be quick to render unless you have a fast machine
6. You need to reconcile your ambition for your render with what your machine can realistically produce. Slow machine? Simplify what you have in your scenes.

Please post some SU screenshots of what you are trying to render, and some sample renders, together with some more info as indicated above. Then we'll be better able to help you.



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CMurray92

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Reply with quote  #3 
I just ordered some more GB RAM and thanks for the help.

These renderings below are just some interior shots. One is a preview preset and you can tell and the other is at a Fine AA preset. They both took around an hour or more.

Attached Images
jpeg studio_living_room_2.jpg (7.52 MB, 103 views)
jpeg studio_living_room.jpg (1.12 MB, 74 views)


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C Murray
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Nick00

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Reply with quote  #4 
Well you absolutely don't need fine AA here, and it takes much more time to render. Render with Int Default and remove  the bump on the counter top.

The biggest issue with the image is the background you added, its not matching at all the brightness, tone, perspective and quality of your render[smile]

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bigstick

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Reply with quote  #5 
That background image is terrible. You've chosen a photo that's been through a filter to enhance the drama. Real life isn't remotely like that.

This is something that most people do badly. Choose an image that has a natural colour balance, and make it a really high resolution one. You need to match the same quality as your render.
You also need to get the right perspective angle.

This is ruining your render. This isn't anything to do with the engine, it's a horrible background [smile]

This shouldn't take an hour to render. What hardware and OS do you have? Only the CPU and RAM really matter in terms of hardware. 

You might want to try reading this.




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DavorP

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Reply with quote  #6 
Background is killing the image. If you were to take a photo of an interior space like this with camera, you would adjust settings so you don't end up with underexposed interior - which is what you are photographing here. That would result in overexposed background. And additionally, when you photograph outdoor scene and have objects in distance, they are usually lighter color then objects in the foreground. Sun positions are also wrong - image has sun from opposite side than your SU setting.

To speed up the rendering:

Remove or turn off all lights including LEM materials if you have any.
Switch off all extra options selected in rendering options.
Use default preset first at very small resolution just to test lighting. If it is over lit, use exterior preset, if it is too dark, use interior. Then when you are happy with everything, move to higher resolution and higher quality presets.

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Natstar

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Reply with quote  #7 
Its taking long to render because of the preset you have chosen and the size you rendered it, that first image is 7913 × 3646, at this size on fine_AA preset it will always take ages to render.

Render at a smaller size and use the default preset first, then the high preset for a final render.

You also need to apply what Jim, Davor and Nick have suggested too.

regards,
Nat

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CMurray92

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Reply with quote  #8 
So now I am rendering a large sketch up file (322,666 KB) and every time I render on exterior default (I want later render on a higher quality) with a 1280 by 1024 view the sketch up bug splats and the rendering cancels. 


I have updated my computer to a 64 bit, windows 8.1, 32 GB of RAMM, 500 GB SSD, core i7 processer. So the computer really fast but this file is on the waterfront, with trees, 10 25-story story buildings, and many reflective layers (but its at 5 reflectivity). I turned off all lems, and pole lighting fixtures.

I have no clue what I am doing wrong and this a very important rendering for our firm.

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C Murray
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bigstick

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Reply with quote  #9 
300mb file? That's probably the largest file anyone has tried to render with Podium!

How many faces are in your model? You may have hit the upper limit. The only option for you is to manage the geometry on your model better.

You need to post some SU screenshots of the model so we can offer some suggestions to help.

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CMurray92

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Reply with quote  #10 
Its a large scale project, but here are some sketch up images. I realize that its large and have thought that may be the problem but I need to know if podium can handle this project because if not I may have to find another plugin for sketch up that can handle something for this size. But if you could help me so I don't have to learn a new rendering plugin, I guess simple things like managing the geometry better because I try to keep it really simple when building in sketch up Liberty Exterior 4.jpg

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C Murray
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CMurray92

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Reply with quote  #11 
Liberty Exterior 2.jpg  Liberty Exterior 3.jpg  Liberty Exterior 1.jpg 
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C Murray
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Reply with quote  #12 
If it is just an interior that you are rendering, delete all other buildings and all other stories. You don't really need trees if they don't show up in your view. Make sure to do all of that in a duplicate file. If you want us to have a look at the file, you can upload it here.
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Nick00

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Reply with quote  #13 
Are you using SU 2015? Have you monitored how much ram is used before it crashes?
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bigstick

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Reply with quote  #14 
Can I have a close-up look at some of those buildings? I suspect they are too detailed for the scale of the render.
In particular I need to see the roof and the wall section with balconies.

Also - are those 3D trees? You don't do that unless you have render instancing, or unless your polygon count can take it. You have a lot of detail in your lighting columns as well. You need to reduce the detail at this scale. It's what games engines do. They have different versions of components, that are automatically swapped for higher or lower poly versions depending on the distance from the camera.

It looks like you haven't managed your polygon count for the level of detail you need.

The point is that whatever render engine you use, you need to manage your polygon count. Regardless if it's 3d Studio Max, Lightwave, maya, Cinema 4D, Modo or whatever. Too much detail means much slower rendering, no matter how you set things up.

There's a direct analogy with manual drawing. If you were drawing a crowd of people from a distance, you wouldn't draw them with different faces, hairstyles and clothes, it would take much too long. You would maybe draw the front row, and then gradually decrease the detail until you are just hinting at heads/forms in the background.

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CMurray92

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Reply with quote  #15 
Thanks for the tips and all the help but I sent my model to a pro and he said that I used a populus_nigra tree that renders the bark very accurately, but splits the bark texture of this into literally hundreds of textures.

But finally got it to render. So when I get a chance I'm going to dumb down the model for the parts that are further away.got it to render. LIBERTY 1.jpg 


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C Murray
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K4 Associates LLC
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