Stopping the rendering

[Hector]

Is there any way to save an ongoing render in its current state?

 

For those cases when the render is taking ages and you would like to stop it but keeping what has been rendered.

 

Another question, what value do you use for antialiasing in the camera settings if what you want is to print an image on a ploter at a low resolution ? Not high quality ink yet printing.

 

I'm using "high" and my current rendering is now in its 16th hour. With 1024 x 768 and 200% resolution multiplier. I guess tnan a lower antialiasing could have helped to reduce that. No radiosity, no special things, just a simple Raytracing. Glass seems to be veeeeerryyyy slow to render.

 

Thanks.

[dwright]

no you cant save an incomplete rendering.

 

For print output is better not to use AA, and increase the resolution instead. AA is really for video, film, HDTV.. for print is better to really calculate the exact amount of pixels you need. If not use low-AA.

 

Cheers,

 

David

[Richie]

Hello

 

>Glass seems to be veeeeerryyyy slow to render.

 

Can you please post your complete scene file to check it?

 

What is your Ray Recursion Limit ?

 

Richie

[dwright]

Originally posted by Hector:

Glass seems to be veeeeerryyyy slow to render

-Radiosity + Reflections + Transparency = LONG RENDERING TIMES

 

-Radiosity + Reflections + Ray Traced Transparencies = LONGER!!!

 

I suggest to render a diffuse radiosity image in B/W and then a ray traced color version, combine them in Photoshop.

[Allen Bussell]

David. How do I render a diffuse image to get the benefits of radiosity without too much of a rendering hit?

 

Any help would be appreciated. Thanks.

[Allen Bussell]

Hector,

 

I usually set my Ray recursion down to 4. Also turn off Refraction unless the rendering specifically calls for it to be on (swimming pool image or such). Use image maps for reflections on surfaces where you can.

Also turn off self-shadowing and shadow for items that will not or should not shadow themselves.(clip map polys, your ground object, background objects that are too far away to notice detail, etc.)

These steps will (should) improve rendering time dramatically.

[dwright]

Originally posted by Allen Bussell:

David. How do I render a diffuse image to get the benefits of radiosity without too much of a rendering hit?

 

Any help would be appreciated. Thanks.

Well, there is a tradeoff... rendering with radiosity but without fancy materials and reflections or transparencies are way faster than with them on. So what I do in some cases is I render everything with a dull materials, then with all effects but without radiosity, and blend them in Photoshop.

 

You can save hours with this tip, and output is still very good. Better still if you render in separate channels.

[ingo]

IMO better than using an image editor to blend those two renderings is to use front projection mapping. You find a tutorial on my website here , its the last tutorial.

 

HTH