Render Scene Dialog
scanlineRender.antiAliasFilter SystemGlobal:antiAliasFilter Area:
scanlineRender.antiAliasFilterSize SystemGlobal:antiAliasFilterSize 1.5
scanlineRender.enablePixelSampler SystemGlobal:enablePixelSampler true
See also
3ds max Globals
3ds max Scanline A-Buffer Renderer Anti-Aliasing Filters