materials causing a noisy animation

[Munz]

I am doing an animation where the floor material has a speckle bump map applied to it with a reflection. When I render this out as an animation, when the camera starts moving the floor becomes very noisy map to it.

 

I have posted the animation here to see what I am talking about

 

http://www.pulsestudio.net/video/video-animation.wmv

 

does anyone know how to fix noise issues like this in animations.

 

thanks

munz

[Brian Smith]

That's going to happen when you use a highly reflective material with a bump map. I wouldn't use a bump there at all...but if you absolutely insisted on it, then the only thing you could do is use supersampling and then blur the image with antialiasing.

 

This might help http://cgarchitect.com/upclose/VI/Week6/Antialiasing%20and%20its%20Side%20Effects.pdf

[dinhtuan]

Did you use scanline for rendering? For glossiness feel in Scanline i chose Flatmirror in Reflection slot with 1,5-2 blur amount

[Munz]

thanks, I will give it a try. This is rendered with Scanline. I will try a few things to fix this. It doesn't matter for me for this project, but I would like to learn why it is happening to avoid it in the future.

 

munz

[quizzy]

you better render the speckle to a bitmap, lower the amount of bump and use supersampling in the floor material. There are a few procedural maps in MAX that will never give you a smooth result, speckle is one of them.