PixelEffect:send

Available since LÖVE 0.8.0

This function is not supported in earlier versions.

Sends one or more values to a special (extern) variable inside the pixel effect. Extern variables have to be marked using the extern keyword, e.g.

extern number time;
extern vec2 light_pos;
extern vec4 colors[4];

The corresponding send calls would be

effect:send("number", t)
effect:send("light_pos", {light_x, light_y})
effect:send("colors", {r1, g1, b1, a1},  {r2, g2, b2, a2},  {r3, g3, b3, a3},  {r4, g4, b4, a4})

Function

Synopsis

PixelEffect:send( name, number, ... )

Arguments

string name

Name of the number to send to the pixel effect.

number number

Number to send to store in the extern.

number ...

Additional numbers to send in case the extern is an array.

Returns

Nothing.

Returns

Nothing.

Function

Synopsis

PixelEffect:send( name, vector, ... )

Arguments

string name

Name of the vector to send to the pixel effect.

table vector

Numbers to send to the extern as a vector. The number of elements in the table determines the type of the vector (e.g. two numbers -> vec2). At least two and at most four numbers can be used.

table ...

Additional vectors to send in case the extern is an array. All vectors need to be of the same size (e.g. only vec3's)

Returns

Nothing.

Function

Synopsis

PixelEffect:send( name, matrix, ... )

Arguments

string name

Name of the matrix to send to the pixel effect.

table matrix

2x2, 3x3, or 4x4 matrix to send to the extern. Using table form: {{a,b,c,d}, {e,f,g,h}, ... }

table ...

Additional matrices of the same type as matrix to store in the extern array.

Returns

Nothing.

Function

Synopsis

PixelEffect:send( name, image, ... )

Arguments

string name

Name of the Image to send to the pixel effect.

Image image

Image to send to the extern.

Image ...

Additional images in case the extern is an array.

Returns

Nothing.

Function

Synopsis

PixelEffect:send( name, canvas, ... )

Arguments

string name

Name of the Canvas to send to the pixel effect.

Canvas canvas

Canvas to send to the extern. The pixel effect type is Image.

Image ...

Additional canvases to send to the extern array.

Returns

Nothing.

See Also

• PixelEffect

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