is there any difference? or am i just stupid and that they are actually the same thing?

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Guitar Rig:
Gibson Les Paul Standard 60's neck
Yamaha AES620

BOSS NS-2 Noise Suppressor
Roland Ev-5 Expression Pedal
Moog Moogerfooger Low Pass Filter
MXR M-108 10 Band EQ
ProCo Deucetone Rat
Peterson Strobostomp Tuner

Marshall MG 15CDR
Mesa/Boogie Dual Rectifier (3 Channels)
2X12 Mesa/Boogie Rectifier Cabinet

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The only difference is automation. A filter is just a setting, which can be changed but is usually a set-and-forget type thing. An envelope filter is a filter that changes according to the parameters specified by the envelope, ie how fast the attack is, the decay rate, and the resonance. Sometimes you'll see a sustain thrown in there as well, which is why on most synthesizers there's either ADR or ADSR envelope filtration.

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