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box2dlights's Introduction

Box2DLights

Fork of Box2DLights by Kalle Hämäläinen

This library offers an easy way to add soft dynamic 2d lights and shadows to your game.

Rendering is done with libgdx, but it would be easy to port this to another framework or pure openGL.

FEATURES:

  • NEW: Shaders stored in external files
  • NEW: Updated Demo for both Desktop and Android platforms
  • Arbitrary number of lights
  • Gaussian blurred light maps
  • Point light
  • Cone Light
  • Directional Light
  • Shadows
  • Dynamic/Static/X-Ray Lights
  • Culling
  • Colored ambient light
  • Gamma corrected colors.
  • Handler class to do all the work.
  • Query method for testing is point inside of light/shadow

NOTES: Compiled and tested with libgdx nightlies 2013-06-29

Read the latest Documentation
Download Latest Compiled Library Jars: Box2DLights Library

ScreenShot

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box2dlights's Issues

Unable to draw on FrameBuffer

I'm currently working with GLSL shaders in LibGDX. When I draw my stuff onto a FrameBuffer and then drawing the buffer to the screen, all lights (even ambient color) disappear. It seems to be that:

myBuffer.begin();
rayHandler.updateAndRender();
myBuffer.end();

..doesn't work. After some research I found out that the internal FrameBuffer of the RayHandler breaks it.

Cannot use new RayHandler after disposing of a rayhandler

Not sure if this is intended or not...

    rayHandler = new RayHandler(scene.getWorld());
    rayHandler.setCombinedMatrix(lightingCamera.combined);
    rayHandler.setAmbientLight(0.1f);
    new ConeLight(rayHandler, 250, Color.WHITE, 16f, 0f, 0f, 180f, 30f);

works well. Lighting is there, shadows, ambient light, all great.

    rayHandler = new RayHandler(scene.getWorld());
    rayHandler.dispose();
    rayHandler = new RayHandler(scene.getWorld());
    rayHandler.setCombinedMatrix(lightingCamera.combined);
    rayHandler.setAmbientLight(0.1f);
    l = new ConeLight(rayHandler, 250, Color.WHITE, 16f, 0f, 0f, 180f, 30f);

does not work. No lights, no shadow, just my unaffected level.

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