RT @mwegner: PSA: Someone was able to access the TIGSource forum admin tools and dump ~4% of the users table. Details here: t.co/C… (Today)

@rustym @ADAMATOMIC what adam needs to do here is perform a one frame reboot even though it says not to turn his PC off... aaaand HE GOT IT (Yesterday)

@DylanGedig NO NOT STEAM TOO AAAUUGHG (Yesterday)

Shout outs to all the cool software that changes my microphone levels behind my back even when I change every setting I can find to stop it. (Yesterday)

@ADAMATOMIC t.co/8Mvq4fWazW (Yesterday)

@konjak never dad!!1 (Yesterday)

@konjak UGH I used to play thunder force 3 and 4 over and over again just to hear the music (Yesterday)

RT @saint11: Another tutorial! This one's a little more complicated, about how to make a minimal attack animation. #pixelart #tutorial http… (Yesterday)

@PCULL44444 ehhhhh I'll wait until it's $49.92 (Yesterday)

@TommyRefenes t.co/Nr3oDqNIpE (Yesterday)

@saint11 Patreon seems like a thing you can just try out and see if it works, if you're not feeling it just close it down. (Yesterday)

can baby otters be twitch partnered t.co/oyOkxxT7Pk (2 days ago)

@ardhous haha wow bullet point email that's brilliant! (2 days ago)

@theBanov yo hit me with two dots and a hash walk a cow through the garden hold the grass and a side of frog sticks (3 days ago)

RT @Jonathan_Blow: Richard Garfield on abusive game design: t.co/bXeJL1vSGH (3 days ago)

@nnnehpe ballmer's rollercoaster (3 days ago)

just drank an energy drink so lets see if i can program or if i have a panic attack!!1 t.co/KCzcZIo4a3 (3 days ago)

@ADAMATOMIC wait the song from the "do you have any special talents" video? (4 days ago)

@eigenbom @McFunkypants eh might be random, wouldn't be the first time (have had this kinda thing since high school p much) (4 days ago)

@eigenbom wooohooooo makin games in fun on a bun *takes 20 different colored pills* (4 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! My name's Kyle, and I make video games most of the time in Denver, Colorado. 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.

blog stuff

categories

tags

archives

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