Class: FilterManager

Extends

• Tiny.WebGLManager

Members

rendererTiny.WebGLRenderer

The renderer this manager works for.

Methods

applyFilter(filter, input, output, clear)

tiny/core/renderers/webgl/managers/FilterManager.js, line 228

Draws a filter.

Name	Type	Description
filter	Tiny.Filter	The filter to draw.
input	Tiny.RenderTarget	The input render target.
output	Tiny.RenderTarget	The target to output to.
clear	boolean	Should the output be cleared before rendering to it

calculateNormalizedScreenSpaceMatrix(outputMatrix) ❯ {Tiny.Matrix}

tiny/core/renderers/webgl/managers/FilterManager.js, line 447

Multiply vTextureCoord to this matrix to achieve (0,0,1,1) for filterArea

Name	Type	Description
outputMatrix	Tiny.Matrix	The matrix to output to.

Returns:

Type	Description
Tiny.Matrix	The mapped matrix.

calculateScreenSpaceMatrix(outputMatrix) ❯ {Tiny.Matrix}

tiny/core/renderers/webgl/managers/FilterManager.js, line 431

Calculates the mapped matrix.

TODO playing around here.. this is temporary - (will end up in the shader), this returns a matrix that will normalise map filter cords in the filter to screen space

Name	Type	Description
outputMatrix	Tiny.Matrix	the matrix to output to.

Returns:

Type	Description
Tiny.Matrix	The mapped matrix.

calculateSpriteMatrix(outputMatrix, sprite) ❯ {Tiny.Matrix}

tiny/core/renderers/webgl/managers/FilterManager.js, line 465

This will map the filter coord so that a texture can be used based on the transform of a sprite

Name	Type	Description
outputMatrix	Tiny.Matrix	The matrix to output to.
sprite	Tiny.Sprite	The sprite to map to.

Returns:

Type	Description
Tiny.Matrix	The mapped matrix.

destroy(contextLost)

tiny/core/renderers/webgl/managers/FilterManager.js, line 481

Destroys this Filter Manager.

Name	Type	Default	Description
contextLost	boolean	false	optional context was lost, do not free shaders

emptyPool()

tiny/core/renderers/webgl/managers/FilterManager.js, line 562

Empties the texture pool.

freePotRenderTarget(renderTarget)

tiny/core/renderers/webgl/managers/FilterManager.js, line 581

Frees a render target back into the pool.

Name	Type	Description
renderTarget	Tiny.RenderTarget	The renderTarget to free

getRenderTarget(clear, resolution) ❯ {Tiny.RenderTarget}

tiny/core/renderers/webgl/managers/FilterManager.js, line 400

Gets a render target from the pool, or creates a new one.

Name	Type	Description
clear	boolean	Should we clear the render texture when we get it?
resolution	number	The resolution of the target.

Returns:

Type	Description
Tiny.RenderTarget	The new render target

inherited onContextChange()

tiny/core/renderers/webgl/managers/WebGLManager.js, line 26

Generic method called when there is a WebGL context change.

onPrerender()

tiny/core/renderers/webgl/managers/FilterManager.js, line 589

Called before the renderer starts rendering.

popFilter()

tiny/core/renderers/webgl/managers/FilterManager.js, line 168

Pops off the filter and applies it.

pushFilter(target, filters)

tiny/core/renderers/webgl/managers/FilterManager.js, line 81

Adds a new filter to the manager.

Name	Type	Description
target	Tiny.DisplayObject	The target of the filter to render.
filters	Array.<Tiny.Filter>	The filters to apply.

returnRenderTarget(renderTarget)

tiny/core/renderers/webgl/managers/FilterManager.js, line 419

Returns a render target to the pool.

Name	Type	Description
renderTarget	Tiny.RenderTarget	The render target to return.

syncUniforms(shader, filter)

tiny/core/renderers/webgl/managers/FilterManager.js, line 298

Uploads the uniforms of the filter.

Name	Type	Description
shader	GLShader	The underlying gl shader.
filter	Tiny.Filter	The filter we are synchronizing.