LesserPanda

Class: RenderTarget

RenderTarget

new RenderTarget(gl, width, height, scaleMode, resolution, root)

Parameters:
Name Type Description
gl WebGLRenderingContext

the current WebGL drawing context
width number

the horizontal range of the filter
height number

the vertical range of the filter
scaleMode number

See SCALE_MODES for possible values
resolution number

the current resolution
root boolean

Whether this object is the root element or not
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Members

filterStack :Array.<object>

Stores filter data for the render target

Type:
  • Array.<object>
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frame :Rectangle

The frame.

Type:
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frameBuffer :WebGLFrameBuffer

A frame buffer

Type:
  • WebGLFrameBuffer
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gl :WebGLRenderingContext

The current WebGL drawing context.

Type:
  • WebGLRenderingContext
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projectionMatrix :Matrix

The projection matrix

Type:
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resolution :number

The current resolution

Type:
  • number
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root :boolean

Whether this object is the root element or not

Type:
  • boolean
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scaleMode :number

The scale mode.

Type:
  • number
Default Value:
  • SCALE_MODES.DEFAULT
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See:
  • SCALE_MODES

size :Rectangle

The size of the object as a rectangle

Type:
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stencilBuffer :WebGLRenderBuffer

The stencil buffer stores masking data for the render target

Type:
  • WebGLRenderBuffer
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stencilMaskStack :StencilMaskStack

The data structure for the stencil masks

Type:
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texture :Texture

The texture

Type:
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transform :Matrix

The object's transform

Type:
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Methods

activate()

Binds the buffers and initialises the viewport.

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attachStencilBuffer()

Binds the stencil buffer.

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calculateProjection()

Updates the projection matrix based on a projection frame (which is a rectangle)

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clear( [bind])

Clears the filter texture.

Parameters:
Name Type Argument Default Description
bind boolean <optional>
 false

Should we bind our framebuffer before clearing?
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destroy()

Destroys the render target.

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resize(width, height)

Resizes the texture to the specified width and height

Parameters:
Name Type Description
width Number

the new width of the texture
height Number

the new height of the texture
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