Lumiere is a collection of post processing effects for use in Defold.
You can use Lumiere in your own project by adding this project as a Defold library dependency. Open your game.project file and in the dependencies field under project add:
https://github.com/britzl/lumiere/archive/master.zip
Or point to the ZIP file of a specific release.
Lumiere has to be integrated with your render script to be able to apply effects.
Integrating Lumiere is done in two steps:
- Add
/lumiere/lumiere.goto a loaded collection, either the bootstrap collection or a loaded proxy collection. This game object contains a full screen quad to which the final composition of post processing effects is drawn. - Integrate Lumiere in the render script:
-- require lumiere for use in the render script
local lumiere = require("lumiere.lumiere")
function init(self)
-- initialize lumiere
lumiere.init()
-- the rest of your init code
...
end
function update(self)
-- update lumiere each frame
lumiere.update()
-- your render script update code
...
-- wrap any render.draw() calls that should be affected by lumiere effects
lumiere.draw(function()
local frustum = self.projection * self.view
render.draw(self.tile_pred, { frustum = frustum })
render.draw(self.particle_pred, { frustum = frustum })
end)
...
end
function M.on_message(self, message_id, message, sender)
-- pass messages to lumiere (to detect change in clear color etc)
lumiere.on_message(message_id, message, sender)
-- the rest of your on_message code
...
end
Lumiere provides a system to apply multiple post-effects to a game. Examples of effects provided:
Each effect consists of some shader code, a Lua module and a game object. To use an effect the game object for the effect has to be added to a loaded collection, either the bootstrap collection or a loaded proxy collection. The Lua module for the effect also has to be added to Lumiere:
local lumiere = require("lumiere.lumiere")
local blur = require("lumiere.effects.blur.blur")
local grain = require("lumiere.effects.grain.grain")
function init(self)
-- use the blur and grain effect (in that order)
lumiere.use_effects({ blur, grain })
end
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