Search found 11 matches

by argh
Thu Feb 06, 2014 10:47 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Lighting and Shadow System

Yes I believe a Teleglitch-like viewcone can be achieved with a subtractive shadow casting algorithm as the starting point.

Image
by argh
Thu Feb 06, 2014 7:16 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Lighting and Shadow System

Yip the subtractive approach has far to many limitations to be used as a multi light realistic shadow implementation. But it does work well for simple shadow scenarios. http://www.saltgames.com/wp-content/uploads/2009/11/multipleLights3.png credit: http://forums.tigsource.com/index.php?topic=8803.0 ...
by argh
Tue Feb 04, 2014 8:29 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Lighting and Shadow System

I'll start porting the code you linked too, let's compare results once we are done :P Hey yesterday was slow going, was busy with freelance work. This is how far I am, shaders are ported but the rest needs some tinkering. I think I won't go further with this method as it is purely for shadows. Addi...
by argh
Mon Feb 03, 2014 7:56 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Lighting and Shadow System

I have updated my subtractive method with a smooth radial gradient light shader https://gist.github.com/seanpackham/8727943 https://lh4.googleusercontent.com/-oi-X1f6un-M/Uu9K2CX8S9I/AAAAAAAABRw/6PGT2uQUIvw/w656-h518-no/love2d-box2d-top-down-door-smooth-lighting_ill-be-back-in-5-minues_day5_1_201402...
by argh
Mon Feb 03, 2014 7:36 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Lighting and Shadow System

Looks really awesome! I have a few questions though, I am going to start working on a game where I would like to have multiple light sources just for aesthetics. But only the light, not that it casts shadows on objects etc. How do you think the best way of accomplishing this would be? Hey I modifie...
by argh
Mon Feb 03, 2014 7:05 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Lighting and Shadow System

That's a similar aproach to this one . I'm actually trying to reproduce that effect... Me too, I'll probably start porting this Java version as the process is explained really well and the code is easy to run. I've never seen a version of this implementation with the objects lit though. How far are...
by argh
Sun Feb 02, 2014 1:18 pm
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Complete Lighting and Shadow System!

Thanks, it's subtractive. I see the additive approach will have more realistic results. Thanks for the link, I'll try and implement it. I also found this approach http://www.catalinzima.com/2010/07/my-t ... d-shadows/
by argh
Sun Feb 02, 2014 6:06 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Complete Lighting and Shadow System!

verilog wrote:Hi argh!
Just wanted to say that your prototype is looking sweet, man! Thanks for the links and keep it up!
Thanks for the encouragement :)
by argh
Sun Feb 02, 2014 6:04 am
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Complete Lighting and Shadow System!

Shadows should stop when they find another object, in your code shadows just keep on going until they hit a wall. Yip to be more realistic they should stop when hitting objects. The problem is the performance plummets if you need to think of each shadow behaving like a light, potentially being spli...
by argh
Sat Feb 01, 2014 6:55 pm
Forum: Libraries and Tools
Topic: Lighting and Shadow System
Replies: 41
Views: 11448

Re: Need Help with Almost Complete Lighting and Shadow Syste

Updated 2014/02/03 Removed embeeded code and added link to gist. Thanks to the reddit user http://www.reddit.com/user/naughty who answered my question http://www.reddit.com/r/love2d/comments/1wmr8w/need_help_with_almost_complete_lighting_and/ with an algorithm and updated code sample, I now have a ...