light_world.lua/postshader.lua
2014-03-06 16:56:25 +01:00

65 lines
2.2 KiB
Lua

LOVE_POSTSHADER_BUFFER_RENDER = love.graphics.newCanvas()
LOVE_POSTSHADER_BUFFER_BACK = love.graphics.newCanvas()
LOVE_POSTSHADER_LAST_BUFFER = nil
LOVE_POSTSHADER_BLURV = love.graphics.newShader("shader/blurv.glsl")
LOVE_POSTSHADER_BLURH = love.graphics.newShader("shader/blurh.glsl")
LOVE_POSTSHADER_CONTRAST = love.graphics.newShader("shader/contrast.glsl")
LOVE_POSTSHADER_BLURV:send("screen", {love.window.getWidth(), love.window.getHeight()})
LOVE_POSTSHADER_BLURH:send("screen", {love.window.getWidth(), love.window.getHeight()})
love.postshader = {}
love.postshader.setBuffer = function(path)
if path == "back" then
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
else
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_RENDER)
end
end
love.postshader.draw = function(shader)
LOVE_POSTSHADER_LAST_BUFFER = love.graphics.getCanvas()
if shader == "bloom" then
-- Bloom Shader
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha")
love.graphics.setShader(LOVE_POSTSHADER_BLURV)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
love.graphics.setShader(LOVE_POSTSHADER_BLURH)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setShader(LOVE_POSTSHADER_CONTRAST)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setCanvas(LOVE_LIGHTMAP_LAST_BUFFER)
love.graphics.setShader()
love.graphics.setColor(255, 255, 255)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
love.graphics.setBlendMode("additive")
love.graphics.setColor(255, 255, 255, 63)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha")
elseif shader == "blur" then
-- Blur Shader
LOVE_POSTSHADER_BLURV:send("steps", 2.0)
LOVE_POSTSHADER_BLURH:send("steps", 2.0)
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha")
love.graphics.setShader(LOVE_POSTSHADER_BLURV)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
love.graphics.setShader(LOVE_POSTSHADER_BLURH)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setCanvas(LOVE_LIGHTMAP_LAST_BUFFER)
love.graphics.setShader()
love.graphics.setColor(255, 255, 255)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
end
end