Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Special Interests > Visual Media > Digital Video

Reply
 
Thread Tools Search this Thread Display Modes
Old Apr 12, 2013, 09:38 AM   #1
stefanwa
macrumors newbie
 
Join Date: Jan 2009
Basic projection mapping?

Hi!

Maybe one of you could help me out in setting up a basic video projection with my MacBook and an older LCD 720 16:9 projector...

I want to make a video projection of moving clouds in the illustrated shape of a cloud. Just on a plain white wall. I don't want the square 16:9 light be seen around my "video object". I have made some quick images to demonstrate what I want to do...


This is how it should look. The wall is grey in this example.

It should not look like this:


or this:


I hope I made it clear. Maybe I'm just not getting it, but do I need some projection mapping software for this? If I need it, what would be a simple solution (preferable free)?

Thanks for suggestions!
Steve
stefanwa is offline   0 Reply With Quote
Old Apr 12, 2013, 11:50 AM   #2
lucidmedia
macrumors 6502a
 
Join Date: Oct 2008
VPT is the only free projection mapping software I know of for OSX. VVVV is also free, but PC only. I use MadMapper, but that is paid software. You can also write your own masks/deforms in Processing, which is a free programming language.

This is a really simple mask. You may want to try types of optical masking first if you really want to shut the projector down in the non-image areas... try a cardboard mask or taping off the lens. Even with projection mapping software, you will get light bleed on your non-image areas.
lucidmedia is offline   0 Reply With Quote
Old Apr 12, 2013, 12:05 PM   #3
stefanwa
Thread Starter
macrumors newbie
 
Join Date: Jan 2009
Thanks for the info!
stefanwa is offline   0 Reply With Quote

Reply
MacRumors Forums > Special Interests > Visual Media > Digital Video

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:04 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC