Sprite:setBlendMode

Available since: Gideros 2011.6
Class: Sprite

Description

Sets the blend mode of the sprite.

Sprite:setBlendMode(blendMode or src,dst)

This method can be called with 1 or 2 parameters.

If one parameter is passed it must be one of the following blending modes:

• Sprite.ALPHA = "alpha"
• Sprite.NO_ALPHA = "noAlpha"
• Sprite.ADD = "add"
• Sprite.MULTIPLY = "multiply"
• Sprite.SCREEN = "screen"

If a Sprite object doesn't set any blending mode, it takes the blending mode from its parent sprite.

Note: the following two lines are completely the same:

sprite:setBlendMode("add")
sprite:setBlendMode(Sprite.ADD)

It's a matter of taste which one to choose.

If two parameters are passed to this method, then a source and destination blend can be set (in that order) and each takes the values:

• Sprite.ZERO = "zero"
• Sprite.ONE = "one"
• Sprite.SRC_COLOR = "srcColor"
• Sprite.ONE_MINUS_SRC_COLOR = "oneMinusSrcColor"
• Sprite.DST_COLOR = "dstColor"
• Sprite.ONE_MINUS_DST_COLOR = "oneMinusDstColor"
• Sprite.SRC_ALPHA = "srcAlpha"
• Sprite.ONE_MINUS_SRC_ALPHA = "oneMinusSrcAlpha"
• Sprite.DST_ALPHA = "dstAlpha"
• Sprite.ONE_MINUS_DST_ALPHA = "oneMinusDstAlpha"
• Sprite.SRC_ALPHA_SATURATE = "srcAlphaSaturate"

Parameters

blendMode or src: (String) if one parameter is used, this is the blend mode. If two parameters are used this is the source blend specification
dst: (String) destination blend mode optional

Example

for x = 1, 11 do
	for y = 1, 11 do
		local top = Pixel.new(topTex, s, s)
		local btm = Pixel.new(btmTex, s, s)
		stage:addChild(btm)
		btm:addChild(top)
		btm:setBlendMode(x, y)
		btm:setPosition(lh + s * (x-1), lh + s * (y-1))
	end
end

---

• Sprite

• Sprite.new

• Sprite:addChild
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• Sprite:clearBlendMode
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• Sprite:swapChildren
• Sprite:swapChildrenAt

• Sprite.ADD
• Sprite.ALPHA
• Sprite.LAYOUT ANCHOR CENTER
• Sprite.LAYOUT ANCHOR EAST
• Sprite.LAYOUT ANCHOR NORTH
• Sprite.LAYOUT ANCHOR NORTHEAST
• Sprite.LAYOUT ANCHOR NORTHWEST
• Sprite.LAYOUT ANCHOR SOUTH
• Sprite.LAYOUT ANCHOR SOUTHEAST
• Sprite.LAYOUT ANCHOR SOUTHWEST
• Sprite.LAYOUT ANCHOR WEST
• Sprite.LAYOUT FILL BOTH
• Sprite.LAYOUT FILL HORIZONTAL
• Sprite.LAYOUT FILL NONE
• Sprite.LAYOUT FILL VERTICAL
• Sprite.MULTIPLY
• Sprite.NO ALPHA
• Sprite.SCREEN
• Sprite.new

• Event.ADDED_TO_STAGE
• Event.ENTER_FRAME
• Event.KEY_CHAR
• Event.KEY_DOWN
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• Event.MOUSE_LEAVE
• Event.MOUSE_MOVE
• Event.MOUSE_UP
• Event.MOUSE_WHEEL
• Event.REMOVED_FROM_STAGE
• Event.TOUCHES_BEGIN
• Event.TOUCHES_CANCEL
• Event.TOUCHES_END
• Event.TOUCHES_MOVE

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