Class: PingPongTarget
Defined in: rendering/ping-pong-target.ts:13
A pair of render targets that can be flipped between a "read" and a "write" target, for passes that repeatedly sample the previous pass's output while writing into a separate buffer (e.g. multi-step post-processing effects).
Constructors
Constructor
new PingPongTarget(
gl,width,height,format?):PingPongTarget
Defined in: rendering/ping-pong-target.ts:25
Creates a new PingPongTarget, allocating two render targets of the given size.
Parameters
gl
WebGL2RenderingContext
The WebGL2 rendering context.
width
number
The render target width in pixels.
height
number
The render target height in pixels.
format?
RENDER_TARGET_FORMAT_KEYS = RENDER_TARGET_FORMAT.ldr
The requested color storage format for both underlying
render targets. Defaults to RENDER_TARGET_FORMAT.ldr.
Returns
PingPongTarget
Accessors
read
Get Signature
get read():
RenderTarget
Defined in: rendering/ping-pong-target.ts:40
The render target that should be sampled from by the current pass.
Returns
write
Get Signature
get write():
RenderTarget
Defined in: rendering/ping-pong-target.ts:47
The render target that the current pass should write into.
Returns
Methods
dispose()
dispose(
gl):void
Defined in: rendering/ping-pong-target.ts:78
Deletes both render targets, freeing their GPU resources.
Parameters
gl
WebGL2RenderingContext
The WebGL2 rendering context.
Returns
void
resize()
resize(
gl,width,height):void
Defined in: rendering/ping-pong-target.ts:65
Resizes both render targets.
Parameters
gl
WebGL2RenderingContext
The WebGL2 rendering context.
width
number
The new render target width in pixels.
height
number
The new render target height in pixels.
Returns
void
swap()
swap():
void
Defined in: rendering/ping-pong-target.ts:55
Flips the read and write targets, so the target just written to becomes the target the next pass reads from.
Returns
void