so wait were the llamas controlled by twitch chat or (Today)

@kertgartner @ADAMATOMIC hdjdidudhsbsjeirhruwhwbe83h28wgsbsnskowowhsneje872gwbk (Today)

@MattThorson "Tournaments make me too nervous" (Yesterday)

@Data01 yeah saw this awhile ago, captures the genesis game vibe pretty well but I never got around to trying it (Yesterday)

RT @infinite_ammo: Gonna be possibly looking to pick up some more contract work after GDC. Music and/or Code. <3 (Yesterday)

@kertgartner how is your computer even running (Yesterday)

@mandyrosler Found this! t.co/kLToN4kQMt (2 days ago)

@MattThorson Still want the original towerfall elf guy as a ultra secret character (2 days ago)

@katanadash dang I think I'm booked already Sunday night but that looks awesome (2 days ago)

@maxticket I do approve! t.co/Sba4ugiwX9 (2 days ago)

Anyone know of any board/card game meet ups happening during gdc? :o (2 days ago)

@unseven rugal was def on my core team in kof98 (2 days ago)

Shout outs to Charlie for learning Genocide Cutter from Rugal t.co/3lI8ENQ5Ol t.co/mAlvSntNps #Kappa (2 days ago)

RT @theBanov: Some words about biking across America t.co/QecZpz3mgB (3 days ago)

@theBanov @djcoreynolan Toothbrush, yes, photos, I don't think I have any :o (3 days ago)

@theBanov eating some halos tonight in your honor t.co/mzagQFkVkK (3 days ago)

@ChevyRay @merlemage @jouste GUN ASS FOREVER (4 days ago)

@TommyRefenes HEY, HEY, yOU WANNA TAKE THIS TO THE HOT TUB? (5 days ago)

@FourbitFriday @MattThorson is game art? Who is art...? (5 days ago)

@MattThorson I dunno what it is but attacking eyes is always fun. (5 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