mirror of
https://github.com/tanema/light_world.lua.git
synced 2024-12-24 20:24:19 +00:00
94 lines
3.5 KiB
Lua
94 lines
3.5 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_CHROMATIC_ABERRATION = love.graphics.newShader("shader/chromatic_aberration.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
|
|
LOVE_POSTSHADER_LAST_BUFFER = love.graphics.getCanvas()
|
|
end
|
|
|
|
love.postshader.addEffect = function(shader, ...)
|
|
args = {...}
|
|
LOVE_POSTSHADER_LAST_BUFFER = love.graphics.getCanvas()
|
|
|
|
if shader == "bloom" then
|
|
-- Bloom Shader
|
|
LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0)
|
|
LOVE_POSTSHADER_BLURH:send("steps", args[1] or 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.setShader(LOVE_POSTSHADER_CONTRAST)
|
|
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
|
|
|
|
love.graphics.setCanvas(LOVE_POSTSHADER_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, (args[2] or 0.25) * 255)
|
|
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
|
|
love.graphics.setBlendMode("alpha")
|
|
elseif shader == "blur" then
|
|
-- Blur Shader
|
|
LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0)
|
|
LOVE_POSTSHADER_BLURH:send("steps", args[2] or 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_POSTSHADER_LAST_BUFFER)
|
|
love.graphics.setShader()
|
|
love.graphics.setColor(255, 255, 255)
|
|
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
|
|
elseif shader == "chromatic" then
|
|
-- Blur Shader
|
|
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("redStrength", {args[1] or 0.0, args[2] or 0.0})
|
|
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("greenStrength", {args[3] or 0.0, args[4] or 0.0})
|
|
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("blueStrength", {args[5] or 0.0, args[6] or 0.0})
|
|
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
|
|
love.graphics.setBlendMode("alpha")
|
|
|
|
love.graphics.setShader(LOVE_POSTSHADER_CHROMATIC_ABERRATION)
|
|
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
|
|
|
|
love.graphics.setCanvas(LOVE_POSTSHADER_LAST_BUFFER)
|
|
love.graphics.setShader()
|
|
love.graphics.setColor(255, 255, 255)
|
|
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
|
|
end
|
|
end
|
|
|
|
love.postshader.draw = function()
|
|
if LOVE_POSTSHADER_LAST_BUFFER then
|
|
love.graphics.setCanvas()
|
|
love.graphics.setShader()
|
|
love.graphics.setColor(255, 255, 255)
|
|
love.graphics.draw(LOVE_POSTSHADER_LAST_BUFFER)
|
|
end
|
|
end |