grainy noise

[coldwetnoz]

I've been following tutorials and trying to make fractals with Apophysis 7 and the problem I run into most is the noise and grainy looking areas.  Is there a way to work on that problem and sharpen up the image?  If I'm asking for the impossible, just tell me. 

Oops, I did have another question:  Why is it that when I follow a tutorial step by step and then looking at their editor, the triangles are not in the same place as mine?...even though I've used their settings?  What should I do, leave them like they are or try to line mine up to match theirs?

Thanks
pslane

[tatasz]

I've been following tutorials and trying to make fractals with Apophysis 7 and the problem I run into most is the noise and grainy looking areas.  Is there a way to work on that problem and sharpen up the image?  If I'm asking for the impossible, just tell me. 

Oops, I did have another question:  Why is it that when I follow a tutorial step by step and then looking at their editor, the triangles are not in the same place as mine?...even though I've used their settings?  What should I do, leave them like they are or try to line mine up to match theirs?

Thanks
pslane

Hmm as a random suggestion, drop on http://chat.deviantart.com/chat/aposhack someday, lots of great fractal artists around.
The noisy and grainy areas, in general, can be fixed with longer rendering (like setting some higher density... I usually use 10k +, and seen people using up to 30k).
If a tutorial gives exact numbers, your editor should be identical to the one in the tuto. Make sure you used the correct settings since, depending of the tutorial, a small shift may ruin it all.

[coldwetnoz]

Thanks for  the response!  The higher density does add lots of quality and brightness, but does nothing for the noise.

[tatasz]

Hmmm, then it can be something param related (either requires insanely high density to smooth out or it is just noisy - for example this one, http://tatasz.deviantart.com/art/Mechanical-Flowers-359354846, pretty much no matter how long i render it, will have noise). Imaging could probably decrease it... But well, pretty hard to say without seeing.