local colourRemover = Shader()
colourRemover:compileFromFile(nil,Misc.resolveFile("flip.frag"))

local playerBuffer = Graphics.CaptureBuffer(800,600)
local bgBuffer     = Graphics.CaptureBuffer(800,600)
function oag.onDraw()
    bgBuffer:captureAt(-100)

    Graphics.drawBox{x=0,y=0,width=800,height=800,priority=-100,color={1,0,0.8627,1}}

    player:render{
        x = 400-(player.width/2),y = 300-(player.height/2),
        sceneCoords = false,priority = -100,
    }

    playerBuffer:captureAt(-100)

    local x,y = 0,0

    Graphics.glDraw{
        texture = playerBuffer,
        vertexCoords = {
            x    ,y+600,
            x+800,y+600,
            x    ,y    ,
            x+800,y    ,
        },
        textureCoords = {
            (0),(0),
            (1),(0),
            (0),(1),
            (1),(1),
        },
        primitive = Graphics.GL_TRIANGLE_STRIP,
        priority = -25,shader = colourRemover,
        uniforms = {
            keyColor = {1,0,0.8627,1},
            threshold = 1.5/255,
        },
    }

    Graphics.glDraw{
        texture = bgBuffer,
        vertexCoords = {
            x    ,y    ,
            x+800,y    ,
            x    ,y+600,
            x+800,y+600,
        },
        textureCoords = {
            (0),(0),
            (1),(0),
            (0),(1),
            (1),(1),
        },
        primitive = Graphics.GL_TRIANGLE_STRIP,
        priority = -100,
    }
end