Forum: Vue

Subject: Depth of Field and a Grainy image

GoofyFoot opened this issue on Feb 15, 2004 ยท 14 posts

GoofyFoot posted Sun, 15 February 2004 at 3:51 PM

I have been working on using the many suggestions you all have given me for improving my latest image, but I ran into this problem with Depth of field. As you can see from the picture, the background is very grainy. Here are the relevant camera and render settings: Blur = 1% Render quality = Ultra Antialiasing option sliders: Minimum # of subrays per pixel = 16 Quality Threshold = Best (all the way over) Is there a way to fix this. Right now, my render time was 51 Minutes for just this little blurb that you're looking at. My full image is to be rendered at 6000 X 4800, so I'm sure the render time will be over 24 hours. I honestly can't see commiting that much time to a render if its going to turn out so grainy. Please help! Sincerely, Tony

h-kana posted Sun, 15 February 2004 at 10:25 PM

Blur works well when camera's focal setting is 50-80mm. Try it.

GoofyFoot posted Sun, 15 February 2004 at 11:25 PM

Thank you for the tip h-kana! Unfortunately, it did not work. My image is still unacceptably grainy. Any other tips out there? Thank you, Tony

Cheers posted Mon, 16 February 2004 at 2:34 AM

Attached Link: http://www.the3dscene.com/gallery/whitetail.htm

You have to use a User setting and for a guarentee of good results put all settings at maximum. Cheers

 

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gebe posted Mon, 16 February 2004 at 3:10 AM

Yes Cheers is right. That's the only way to get a great effect with blur

GoofyFoot posted Mon, 16 February 2004 at 8:24 AM

Okay, I will give that a shot.

Cheers posted Mon, 16 February 2004 at 9:21 AM

ohhh...you may need a lot of patience at this setting as well ;-) Cheers

 

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GoofyFoot posted Mon, 16 February 2004 at 10:03 AM

Okay, this is getting frustrating. I've seen some beautiful examples of depth of field with view (yours included Cheers), but I don't seem to be able to achieve that quality myself. I followed you advice, and used user settings with all of the good stuff checked, superior antialiasing, and both of the antialiasing sliders moved to maximum settings. After 51 mins on a tiny little 273 X 240 sample, its still grainy. I really wish I knew what I was doing wrong. )G:`,

Cheers posted Mon, 16 February 2004 at 10:31 AM

What version of Vue are you using? If you don't mind, send the Vue file along to my email address and I will take a look for you...unusual to still have the problem at 1% and those settings. martin.childs@the3dscene.com Cheers

 

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denice posted Tue, 17 February 2004 at 1:07 PM

Attached Link: ftp://denyce.free.fr/synthese/vue/blur.jpg

=> Don't use superior antialiasing but try the standard one. I was disappointed with DOf in vue 4. All my Vue3 scene using DOF looks ugly with superior antialiasing in Vue 4 (There was no problem in Vue 3) I made some try a long time ago (look at the jpeg link below 256ko) => [25,80%] mean 25 subray per pixel and quality treshold at about 80%... Of course it was an older version of Vue (4.05) but try standard antialiasing, maybe you will have better results

Cheers posted Tue, 17 February 2004 at 1:35 PM

Attached Link: http://www.the3dscene.com

very good point denice...I had made the same observation as well, but had forgotten about it...this will make the difference...thanks for updating my sloppyness :-) Cheers

 

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denice posted Tue, 17 February 2004 at 2:42 PM

Attached Link: http://denyce.free.fr/synthese/vue/blur.jpg

Sorry my previous link was wrong ... Here is the right one

GoofyFoot posted Tue, 17 February 2004 at 4:07 PM

Thank you very much! (G:`,

Zicculus posted Tue, 17 February 2004 at 11:25 PM

Vue4 stinks at blur. Its all grain no matter what you try. Vuepro fixes this but too bad you have to pay 400 for a free deserved upgrade.