Image sampler Fundamentals

[hardcak]

Hi,

I’m currently learning Vray (for Rhino) and trying to get to the nitty gritty on Image sampling. I have read a few articles on it, and there’s lots of mention about sampling the pixels and ways to improve speed etc but I don’t get it fundamentally!!! I know what a pixel is but, can’t understand what it means by sampling a pixel? Is their a simple way of explaining this from concept?

I’m sure the penny will drop soon, but I am getting frustrated.

Any help appreciated

[Thablanch]

http://www.spot3d.com/vray/help/150SP1/render_params_imagesampler.htm

 

Look at the bottom of the page.

 

Adaptive - faster for smooth scenes,

DMC - for scenes with details

 

In Adaptive, going under 0 speeds things, but there is a quality drop.

Biggest the number ( both Adaptive and DMC) and better the quality. Biggest the number, longer the render times.

[Ricardo Eloy]

Check out Chistopher Nichols' video at Gnomonology.com. The name is "Speed vs Quality in V-Ray". It's 56 minutes long and well worth the 12 bucks.

[deanomagino]

Send me your email andf ill send you an hour seminar by Brian Smith - Image Sampling Demystified

[dpcaltdcah]

I agree, the brian smith seminar totally cleared it up for me. it was excellent.

[deanomagino]

oh yeah alot is explained in the vray articles

 

http://www.cgarchitect.com/upclose/VI/default.asp

[hardcak]

thanks for the links - going to have a look soon. Dean I have sent PM with my email.