light_world.lua/README.md

light_world.lua

This is the light modeling done by Priorblue here, only it has been largely refactored and edited to allow for scaling and proper translation.

Installation

Copy and rename the lib folder into your project.

How to use

local LightWorld = require "lib/light_world"

-- create light world
lightWorld = LightWorld({
  drawBackground = drawBackground, --the callback to use for drawing the background
  drawForground = drawForground, --the callback to use for drawing the foreground
  ambient = {55,55,55},         --the general ambient light in the environment
})

function love.draw()
  love.graphics.push()
    love.graphics.translate(x, y)
    love.graphics.scale(scale)
    lightWorld:draw(x,y,scale)
  love.graphics.pop()
end

For more information please check out the wiki and see the examples directory to see how it is fully used. This project can be run with love to see the demonstrations in action.

Features

• Preview (Video)
• polygon shadow calculation Preview
• circle shadow calculation
• image shadow calculation Preview
• shadow blur
• light color, range, smooth and glow Preview
• ambient light
• self shadowing on images with normal maps Preview
• dynamic glow effect on images and circle/poly objects Preview Preview
• generate flat or gradient normal maps Preview
• convert height maps to normal maps Preview
• generate a normal map directly from the image (usually gives poor results)
• shadow color and alpha (glass) Preview
• directional light Preview
• refractions (moveable) Preview
• chromatic aberration Preview
• postshader with many included postshaders, plus easy to extend

License

A License has been included in this project