@AsherVo yeah whatever let me know when it can make a driverless car pick you up and go off a sweet jump on top of a parking garage (2 days ago)

@jethrolarson hahah why would they allow comments on Ted talks that's just a recipe for disaster (2 days ago)

Are there any GDC talks along the lines of "how to make cool stuff without being crippled by self doubt and overwhelming anxiety" ?? (3 days ago)

RT @ESAdevlog: ENVIRONMENTAL STATION ALPHA IS OUT! t.co/02XSoVYNJB Release trailer: t.co/ICFmBTDsRl (4 days ago)

@biphenyl anything less than left wing is unacceptable (5 days ago)

@biphenyl damn Thomas Ryun with the option select (5 days ago)

@TeddyDief probably as a kid when I realized that giving enemies and bosses a billion health in my games was only fun for me (5 days ago)

@pietepiet PogChamp (5 days ago)

@rustym @ADAMATOMIC resteroni in pepperoni (5 days ago)

RT @unseven: Lady Lock's INCREDIBLE animation by @AdamKlingPixel for @PlayDuelyst one of my fav characters :D #pixelart t.co/vvZZqew… (6 days ago)

@jacobalbano @r0bbieTheRobot my color lerping dreams have come true (6 days ago)

@MattThorson team most lethal strikes again (7 days ago)

@ADAMATOMIC he's ready to play the recorder (8 days ago)

@dannyBstyle I'm diggin' those specs, dawg!~ (8 days ago)

@Draknek Seems like it's just a very hard problem to solve... but yeah I love flashpunk and my C# engine is based entirely off of it ;D (8 days ago)

@konjak ok! <3 (8 days ago)

@jwaaaap oh thanks!! :3 (8 days ago)

@konjak (I'm procrastinating on doing enemy and player animations) (8 days ago)

@konjak Yeah the game is like... pretty much done I'm just adding unnecessary amounts of polish. (8 days ago)

More menu work today t.co/HoeYRjdIOE #screenshotsaturday ;D (8 days ago)

follow
search

2014 - 4 - 16 / 4:58 pm / general

Dev Log: Quick Lighting Test

Dev Log: Quick Lighting Test

As a quick experiment I wanted to see how Otter would be equipped to handle a simple lighting set up. The basic set up is just a big render texture that is filled with a dark color with a blend mode set to multiply. Then light is rendered to the render texture with a blend mode of additive. The result is a layer of shadow that can have light rendered to it.

Image

The code for this set up right now is pretty straight forward as well. I'm using a black and white image for the light. Just a black rectangle with a white radial gradient in the center.

Here's some sample code to show how this effect is achieved with Otter!

//set up the surface
public Surface SurfaceLighting = new Surface(Game.Instance.Width, Game.Instance.Height, new Color("379")) {
Blend = BlendMode.Multiply
};

//set up the light
public Image ImageLight = new Image(Assets.ImageLight1) {
Blend = BlendMode.Add
};

//add the surface to an entity to render it
//this happens in an object's initialization
AddGraphicGUI(SurfaceLighting);

//render light to the surface
//this happens in a Render() function
Draw.SetTarget(SurfaceLighting);
ImageLight.Color = Color.White;
Draw.Graphic(ImageLight, Input.MouseX, Input.MouseY);
ImageLight.Color = Color.Red;
Draw.Graphic(ImageLight, Input.MouseX + 500, Input.MouseY);
ImageLight.Color = Color.Blue;
Draw.Graphic(ImageLight, Input.MouseX - 500, Input.MouseY);
Draw.ResetTarget();

4 Comments
Avatar

2014 - 4 - 17 12:29 PM

TodesBrot

Did you cut parts of the code? Because it seems really odd to me that a function contains public fields.

Avatar

2014 - 4 - 17 1:30 PM

Kyle

Yes, hence the comments.

Avatar

2014 - 4 - 17 2:59 PM

TodesBrot

...goddammit I overlooked that

Avatar

2014 - 4 - 18 7:39 PM

Kyle

;D

Avatar

Post your comment!

POST COMMENT

about

About

Hi there, my name is Kyle, and I'm a kid disguised as a grown up. I'm making video games and living the indie game developer life in Tempe, Arizona. Here you will find my thoughts, games, websites, doodles, and other stuff like that. I worked on Snapshot, Offspring Fling, and a whole bunch of other games. I also created and maintain Otter, a 2d game making framework. If you want to get a hold of me use the form on the bottom of the page, leave a comment, or just tweet at me. I try to post three times a week. Thanks for stoppin' by! You're the coolest.

facebook

videos

Do you want to make a Let's Play of one of my games, or a just a video featuring footage of my games? You have my full permission to do so! Even if you are monetizing your videos, you still have my full permission to use any footage from any of my games. Go for it!

contact

Your message has been sent! Thanks :)
SEND MESSAGE