Denise Richards was camera-ready and serving full glam today … so much so, you’d think she was headed to a premiere — not a courtroom showdown with estranged hubby Aaron Phypers!

Take a look — Denise rolled up to L.A.’s Stanley Mosk Courthouse Thursday in a head-to-toe black slay … fitted top, leather skirt, peep-toe heels, oversized shades, sleek hair and that megawatt smile — making it loud and clear she’s dressing for victory.

Aaron showed up separately … way less smiley, all business. And he’s got plenty on the line — he’s asking the judge to order Denise to cough up spousal support ASAP … even as he’s dealing with a domestic violence arrest and a pending criminal case.

He’s also claiming he deserves roughly 50% of Denise’s OnlyFans earnings because he says he shot the content. Denise isn’t having it — alleging he committed domestic violence — and she says there’s no universe where she should be writing him checks.