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Vue F.A.Q (Last Updated: 2025 Jan 30 6:52 am)



Subject: Render Not Same As Preview


Jonj1611 ( ) posted Sat, 21 February 2009 at 11:16 AM · edited Wed, 25 October 2023 at 3:25 AM

Hi,

I upgraded to Vue 7 Complete yesterday and I am having a problem with one of my images, I am using an HD tree and a spectral sky.

Anyway, I have tried rendering on Final and Superior and the results are the same, the final image looks nothing like the preview, the glow around the edges of the leaves is not there, I have searched for a problem and found the  make sure re-use indirect lighting is not ticked and it isn't. So I am stuck, any ideas?

http://i403.photobucket.com/albums/pp114/jonj16111/Capture.jpg

Thanks
Jon

DA Portfolio - http://jonj1611.daportfolio.com/


ArtPearl ( ) posted Sat, 21 February 2009 at 12:01 PM

I dont really know the source of your problem, but I can understand the frustration when the preview looks nicer than the final render. I had similar problems when I was experimenting with caustics. In the preview I had some spectacular rainbows and when rendered is was...well not spectacular.
It seems that in the preview it sometimes concentrates the lighting effects whereas in a bigger render it gets spread over many pixels and thus isnt as effective.
What was supposed to cause the effect? Perhaps it higher settings?
Sorry I cant offer a practical solution, maybe a guru will come along:)
And welcome to v7complete!

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
http://artpearl.redbubble.com/


Jonj1611 ( ) posted Sat, 21 February 2009 at 12:55 PM

 Hi,

I didn't actually realise when I uploaded it that it had shrunk the image size, here is a bigger version so you can see the problems more :-

http://i403.photobucket.com/albums/pp114/jonj16111/Capture-1.jpg

 

Thanks for the comments artpearl, maybe a closer look will show you what is going wrong. I am not using any advanced lighting, it was a quick image test when I first loaded the program. As I said when rendered in either final or superior exactly same effect. Can't understand it :(

Jon

DA Portfolio - http://jonj1611.daportfolio.com/


bruno021 ( ) posted Sat, 21 February 2009 at 1:59 PM

Check the camera post processing effects that are applied by default, maybe the preview doesn't apply them. Double click the camera icon in  the world browser and uncheck natural film response and auto exposure. Maybe these are the culprit.
But keep in mind the preview is just a preview, not an accurate render. You can also up the preview quality and see if it gets closer to the rendered image.



chippwalters ( ) posted Mon, 23 February 2009 at 1:31 AM

 The preview is a quick render of the scene and may not reflect things like internal shadows in clouds. If it did, it may take considerably longer to render. Try right-clicking on the Preview window and set the quality to Best, but know it will take much longer to render previews.

 


Jonj1611 ( ) posted Mon, 23 February 2009 at 2:12 AM

 Hi,

Thanks for the input, I set the preview render to the highest setting and same result, it looks a lot different, in fact, if you look you will see the clouds are a different colour too, ie light on the preview over the tree, and dark on the actual render, most strange.

In fact, even though you are supposed to be able to import Vue 6 scenes, I have found every single one of my scenes is a lot darker now than my Vue 6 scenes. I guess this is due to changes in the way the renderer works now, but it means for me anyway that older scenes I still need to render in 6 Infinite.

Jon

DA Portfolio - http://jonj1611.daportfolio.com/


ShawnDriscoll ( ) posted Mon, 23 February 2009 at 4:02 AM

It looks like either the preview or the render screen is using your post-processed render camera/lighting settings.

www.youtube.com/user/ShawnDriscollCG


silverblade33 ( ) posted Mon, 23 February 2009 at 7:09 AM

I've seen tha thappen once, guys, fyi.
can't recall what solved it though.

it could be as folk say, post procesing?

have you got latest build? :)

"I'd rather be a Fool who believes in Dragons, Than a King who believes in Nothing!" www.silverblades-suitcase.com
Free tutorials, Vue & Bryce materials, Bryce Skies, models, D&D items, stories.
Tutorials on Poser imports to Vue/Bryce, Postwork, Vue rendering/lighting, etc etc!


Jonj1611 ( ) posted Mon, 23 February 2009 at 8:15 AM

 Hi,

Yes, I purchased complete a few days ago and it came as the latest build anyway. I can understand what people are saying about post processing but I am not sure that is the case here because, it was my first scene but I was only playing with the software. I added a tree, moved the camera and added an atmosphere and that was it, absolutely nothing else has been done. So for it to post process the camera and/or settings would have had to changed and this is not the case. 

Maybe its just one of those things, I kinda liked the picture in the preview, though again cannot understand how the clouds are different in the preview to the main scene, even though I have got the preview window to refresh.

Jon

DA Portfolio - http://jonj1611.daportfolio.com/


ShawnDriscoll ( ) posted Mon, 23 February 2009 at 3:20 PM

I just noticed since updating my video driver that the final screen refresh is slower.  This is where the brightness/contrast is adjusted to according to your settings.  If I'm doing too much stuff in the background, the refresh doesn't happen after the render.  It does actually, but the video driver doesn't reflect a change in the window display.  If you save the render anyway, it should look more like the preview render.

I'm trying another driver version.

www.youtube.com/user/ShawnDriscollCG


Jonj1611 ( ) posted Mon, 23 February 2009 at 5:47 PM

 I have now sent off a support request to E-On. Something is definately wrong here. 

With a complete blank scene, several atmospheres load extremely dark in the preview, the light balance is all wrong. 

Thanks for the help everyone :)

Jon

DA Portfolio - http://jonj1611.daportfolio.com/


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