You are viewing an archive of the old fxhome.com forums. The community has since moved to hitfilm.com.

Gun Blow Back

Posted: Mon, 11th Aug 2008, 12:18pm

Post 1 of 13

StupidLikeAFox

Force: 1075 | Joined: 7th Jun 2008 | Posts: 235

VisionLab User

Gold Member

Okay a Gun Blow Back...

First of all for all of you who dont know what a gun blow back is it is when the top half of a gun flys back when shot but we will be creating this digitally.

This is what we will be making...

http://www.youtube.com/watch?v=QSXm3clPiyw

Look closely at the top half of the gun. It flys back and then hits back in. This is what we will be creating

Okay I think this works on all fxhome software Effects Lab, Visionlab and Compositelab.

Im working on visionlab.

Okay so open up your software and import your footage of you shooting your gun. Now duplicate that layer.

Now the layer you just duplicated go to the part where you have shot, when the muzzle flahs comes out and cut everything else out so you only have that frame on the top layer.

Now on that frame make a grabage matte around the top half of the gun

Feather:6

Invert Shape: ON

Okay so now position the top half of the gun that you cut out 1/4 to the left so the gun looks longer on the left side and its hanging over.

Now go to grade and use a Blur Angle.

Have the angle upwards or position to the way your gun is pointing and have a blur of 15.

Thats about it now just render it and it looks great.
Posted: Wed, 26th Nov 2008, 7:52pm

Post 2 of 13

Mar Omega

Force: 706 | Joined: 26th Nov 2008 | Posts: 7

VisionLab User Windows User FXhome Movie Maker

Gold Member

It's very good to know this effect can be achieved on VisionLab! I only have two prop guns with physical blowback. And it drives me crazy to see movies where people shoot and the guns don't move.

The average person doesn't notice, but anyone who knows anything about guns can tell a fake.

Here's a question: Are there any pre-rendered shell casings on VisionLab? If you can move the slide and add a muzzle flash, a shell casing should eject as well.
Posted: Wed, 26th Nov 2008, 8:39pm

Post 3 of 13

Garrison

Force: 5404 | Joined: 9th Mar 2006 | Posts: 1530

VisionLab User VideoWrap User PhotoKey 2 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker MacOS User

Gold Member

You can always take stock images of shell casings and composite them in the shot. Animate it to your taste, and add a gausian blur if need be.
Posted: Thu, 4th Dec 2008, 5:21pm

Post 4 of 13

badmonk

Force: 1197 | Joined: 17th Dec 2007 | Posts: 92

VisionLab User MacOS User

Gold Member

cool!!
is the youtube clip the one you did with fxhome please action?

if so then looks awesome!! smile
Posted: Wed, 10th Dec 2008, 4:35pm

Post 5 of 13

StupidLikeAFox

Force: 1075 | Joined: 7th Jun 2008 | Posts: 235

VisionLab User

Gold Member

Yes the one on youtube is the one I created with Fxhome
Posted: Fri, 12th Dec 2008, 11:04pm

Post 6 of 13

badmonk

Force: 1197 | Joined: 17th Dec 2007 | Posts: 92

VisionLab User MacOS User

Gold Member

cool! thanks for that!! smile
i posted a comment (UK Monk)
Posted: Wed, 21st Jan 2009, 12:21am

Post 7 of 13

Tgdrake

Force: 400 | Joined: 4th Jan 2009 | Posts: 26

EffectsLab Pro User

Gold Member

cool effect! Its subtle but very important. Thanks for the tutorial!
Posted: Wed, 24th Jun 2009, 1:48am

Post 8 of 13

TheOutlawAmbulance

Force: 931 | Joined: 16th Dec 2008 | Posts: 938

EffectsLab Pro User VideoWrap User Windows User

Gold Member

I know this is an old forum but how do you do it in E-lab?
Posted: Wed, 24th Jun 2009, 2:39am

Post 9 of 13

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User

SuperUser

This tutorial should work in EffectsLab; what part is giving you trouble?
Posted: Wed, 24th Jun 2009, 3:00am

Post 10 of 13

TheOutlawAmbulance

Force: 931 | Joined: 16th Dec 2008 | Posts: 938

EffectsLab Pro User VideoWrap User Windows User

Gold Member

Axeman wrote:

This tutorial should work in EffectsLab; what part is giving you trouble?
Just the garbage matte part. You can probably animate it too, if you know what mean.
Posted: Wed, 24th Jun 2009, 3:09am

Post 11 of 13

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User

SuperUser

Ah, yeah, you'd have to use a mask instead of a garbage matte.
Posted: Sat, 27th Feb 2010, 2:45pm

Post 12 of 13

IPresents

Force: 295 | Joined: 26th Mar 2008 | Posts: 127

EffectsLab Pro User FXhome Movie Maker Windows User

Gold Member

Its quite easy, I achieved it here, tell me what u think ?

http://www.youtube.com/watch?v=SCURz3PHXjU
Posted: Sat, 27th Feb 2010, 2:53pm

Post 13 of 13

Sollthar

Force: 13360 | Joined: 30th Oct 2001 | Posts: 6094

VisionLab User VideoWrap User PhotoKey 2 Pro User FXhome Movie Maker Windows User MacOS User

SuperUser

tell me what u think ?
Did you seriously add a logo and an opening title to a simple bullet shot test? I'd rather recommend to keep simple things actually simple and not waste the time of people willing to watch a little test like that with a production logo and a title, it serves no purpuse. unsure

The effect itself doesn't look very convincing. The drawback looks okay since it's all going very fact, but you placed the smoke stock wrong (the smoke is supposed to go into the bullets direction, not behind the gun randomly), which gives the whole clip a very fake look.