Help! Strange Moskitos in C4D

[Postmaster]

Here is a problem, I never stumbled over in almost 20 Jears of C4D use.

Lots of little wihite "Moskito" dots (white pixels) apear after rendering.
Seems to affect only the "soil" area.

By the way, this is a Tunnel Bore Machine.
A animation I do for Linde Gas.

You have to enlarge all the way to see them.

Any thoughts?

Frank

[Matt Grunau]

What kind of textures are you using for the ground? Procedurals? UV?

What are you AA settings?

Is it possible for you to render ONLY the ground with settings which will eliminate them and render the other portions separately and comp them?

Is it possible for you render the ground separately with your current settings and render the rest, fix the dots in post, and comp them?

If the dots are pure white, you could simply put two instances of the ground into your composition in layers one above the other, shift the bottom layer in any direction by 1 pixel, and key out the white. It is not an in program fix, but it will get you through your project.

Those dots remind me of the noise errors I get in Lightwave when rendering with Global Illumination using an HDR image as the "background". But "my" dots are mostly just off colors.


Sorry I could not be of more help.

[Gord.T]

It appears only with that one rock texture. Could just be a spot in the texture iteself if it's a picture.
If your using a procedural, try typing in a low value in the Material Channels 'blur offset' or maybe, but not likely, play with your antialias settings.

Let us know what it was if you find it.

Nice work btw.

[Capt Quirk]

Maybe you have dust on your lens?

[Postmaster]

The material is picture based, so I tried an other picture - no.
Then I tried a prcedural shader - same game.

I tried the old material on a simple cube - moskitos gone.

So the problem was the geomety (boolean).

After converting to plolys, optimizing and n-gons it renders fine.

Thanks for your thoughts gentlemen.

Frank




Nice work btw.

Thanks. It´s not the final geometry/textures and light - just something
I slammed together in 2 hours to give the client an idea.

I can post the end result in a view weeks if someone is intrested.

Ah, by the way - can someone convert a .max file into a .3ds file for me?

Thanks

[Gord.T]

I'd be interested in seeing the final render.

-What version of max? I can handle max8 files, not sure about newer ones.

[Postmaster]

Don`t know. Can I mail you the file?

Thanks, Frank

Ah, need your mail address.

[Gord.T]

PM sent.