Rendering: Sharp renders in Brazil?

[lukx]

well I guess that solution might be too drastic for you... use Vray ;)

[Rivendale]

hehe no way!;)
anyway, I figured out to turn off filtering in the bitmap parameters, and it helps a lot. Any other tips for sharpening it up are still welcome.

[lukx]

Rivendale than maybe you could take a look at my post I also got some problem with brazil:
http://www.cgtalk.com/showthread.php?s=&threadid=90680

[KungFuJackRabit]

I'm in Maya so I can only suggest since I cant remember exactly where settings were in Brazil, but look into the antialiasing. And test by turning the AA off completely. Then if the method its using Gaussian or box. Tweek this for the time being. There are several ways to crispen renders but this is the only suggestion I can give on Brazil. Then if the render is cleaner try rendering larger and scaling down in pshop. Old way but it would work if you cant find another way I guess....lol

[Ian Jones]

Have you experimented with the Blackman filter? it says its meant for sharp edges apparently.

Also, in the shade rate parameters for both image sampling and GI sampling you should maybe adjust your settings to: min0 max0 for a 1*1 pixel sample. This will sample each and every pixel and should not blur/interpolate between adjacent pixels like adaptive undersampling or oversampling. Hopefully your textures will remain crisper.

This is just a bit of a guess though, since I am fairly new to brazil and I have only just been reading up on some stuff. I was reading about it at:

http://ringas.netfirms.com/brazil/Brazil_Notes.htm

I hope that helps somehow...

[Rivendale]

Thanks for the suggestions and link Ian, I'll give the Blackman filter a try and play with the settings to see how it goes.

[soulburn3d]

I personally use mitnet and aa of 1 and 2 or 1 and 3 for all my images, but it depends on how "sharp" I suppose you want your images to be. Ya, turning off filtering on bitmaps can help since bitmaps in max are filtered using a box filter which is not the ideal filter method. You can also set key bitmaps to summed area instead of pyramidal filtering, but be careful, that takes up a lot more memory, hence I only use it on the most important maps. Also note, if you turn filtering off for bitmaps, your renderer is doing all the work antialiasing vs having the maps pre-filtered, so you may need to do more sampling on the render side to get smooth results.

- Neil

[Saeed]

Choose Catmull-Rom For Image filtering and in 2d map filtering use 1 or lower for Derivative Blur and 0 for Blur Offset.

http://www5.domaindlx.com/kalhor/image/image009.jpg

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