Anti-aliasing rendering technology--smaa

http://www.iryoku.com/smaa/

Http://www.iryoku.com/smaa/downloads/SMAA-Enhanced-Subpixel-Morphological-Antialiasing.pdf

Technology has been out for 2 years, is a MLAA super version.

Background

MSAA as the first AA technology, the core meaning is that Depth/stencil will have multiple copies of the Subpixel, and the color portion has only one rendering consumption, and then according to the test results, to resolve color.

MLAA/FXAA system technology is based on the picture information, can be color, can also include more things, to do some pattern matching, detect the L-shaped edge, do some blur, to soften the edge.

SMAA

Full name is enhanced Subpixel morphological antialiasing

Is the super version of Mlaa, the author also includes the author of the Mlaa, as well as some other cattle people.

The main strengthening places:

• More patterns are added to edge detection and pattern matching, and some sharp geometry edges can be handled better
• The MSAA part was introduced
• This is a relatively qualitative part of the traditional mlaa is not subpixel, this will be like Ssao, there will be a lack of innate information insurmountable defects:
• Can see, no subpixel situation, some thin line is broken, this is not MLAA algorithm can handle, must use MSAA system, have subpixel information, can be better processing

• Temporal reprojection: Before Crytek,bungie have done efforts, theoretically save the vector information, and do a good job of weight choice, indeed can do no defects, the corresponding efficiency advantage will also fall

So in a nutshell: Mlaa algorithm strengthens +msaa+temporal reprojection

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Anti-aliasing rendering technology--smaa