Very fine line Antialiasing

[Matt Sugden]

I'm currently rendering a building (with vray) which is about 200m long, it has vertical cladding which at the front of the building is very visable so I have modeled it, but because of this towards the back of the building the cladding doesn't look good because of the very fine anti aliasing?

 

I'm currently using catmul rom, with adaptive subdivision -1 /2, any tips for getting these lines too look sharper, and not just a fuzzy mess.

 

I suppose the other option is to use textures towards the back where the cladding detail is less critical, but I'd rather use the model and get it looking right if possible.

 

Cheers

[Noise]

Change your image sampler to Fixed with subs to 4 and turn off your antialisaing filter.

[shaneis]

Another way to go about it would be to render the rest of your image at the previous settings, the render the cladding details at a much finer setting, then comp the two. Might save you bumping your settings so high to achieve detail in just one element of the image.

[ice_9]

not sure about the 'fixed' AA, it would slow down the entire scene rendertime

i had recently the same problem, 1-4 adaptive qmc worked for me, + region render for the finest detail 1-6

btw the 'mitchel.c...' filter is sharper than catmul rom

[Dave Buchhofer]

Add a vraydirt to your diffuse of the problem object.. add in its original diffuse as the unocluded color on the vraydirt.. set your radius in the dirt map to an inch or two longer than your reveal/corner depth

 

also I'm starting to like the QMC/DMC AA better. uncheck the use dmc settings and lower your color threshold slowly. you'll definitely end up with slower renderings, but the AA filter is sharper in most cases and uses less ram

[Joseph Petrino]

I use "Fixed 3" all the time. It very accurate and the rendertimes are reasonable.

[dbibb]

Have you tried turning on "Sub pixel Mapping" ?

[rnx]

Could checking the detail enhancement option help? Besides the QMC of course.

rnx