FilterPanoramaBlur
This RenderNode renders the PanoramaBlur filter effect, which applies a radial blur that simulates the distortion seen at the edges of wide-angle or panoramic lenses. The blur is controlled by a radius and a power value, and uses configurable horizontal and vertical sample counts to balance quality against performance. Higher sample counts produce smoother results at the cost of GPU time.
This node manages a dynamic shader addition that injects the sample count as preprocessor defines (SAMPLES_X and SAMPLES_Y) into the fragment shader, so the correct variant is compiled and cached automatically.
See Phaser.Filters.PanoramaBlur.
Constructor
new FilterPanoramaBlur(manager)
Parameters
| name | type | optional | description |
|---|---|---|---|
| manager | Phaser.Renderer.WebGL.RenderNodes.RenderNodeManager | No | The manager that owns this RenderNode. |
Scope: static
Extends
Source: src/renderer/webgl/renderNodes/filters/FilterPanoramaBlur.js#L12
Since: 4.0.0
Inherited Methods
From Phaser.Renderer.WebGL.RenderNodes.BaseFilterShader:
From Phaser.Renderer.WebGL.RenderNodes.RenderNode:
Public Methods
setupUniforms
<instance> setupUniforms(controller, _drawingContext)
Description:
Sets the WebGL shader uniforms required by the panorama blur fragment shader. This uploads the blur radius (uRadius) and the blur power (uPower) from the filter controller to the currently active program.
Parameters:
| name | type | optional | description |
|---|---|---|---|
| controller | Phaser.Filters.PanoramaBlur | No | The filter controller providing the radius and power values. |
| _drawingContext | Phaser.Renderer.WebGL.DrawingContext | No | The current drawing context (unused by this method). |
Overrides: Phaser.Renderer.WebGL.RenderNodes.BaseFilterShader#setupUniforms
Source: src/renderer/webgl/renderNodes/filters/FilterPanoramaBlur.js#L73
Since: 4.0.0
updateShaderConfig
<instance> updateShaderConfig(controller, drawingContext)
Description:
Updates the shader addition that controls the sample counts used by the panorama blur fragment shader. The horizontal and vertical sample counts are read from the controller and injected as SAMPLES_X and SAMPLES_Y preprocessor defines, causing the program manager to compile and cache the appropriate shader variant if it has not been used before.
Parameters:
| name | type | optional | description |
|---|---|---|---|
| controller | Phaser.Filters.PanoramaBlur | No | The filter controller providing the sample count values. |
| drawingContext | Phaser.Renderer.WebGL.DrawingContext | No | The current drawing context (unused by this method). |
Overrides: Phaser.Renderer.WebGL.RenderNodes.BaseFilterShader#updateShaderConfig
Source: src/renderer/webgl/renderNodes/filters/FilterPanoramaBlur.js#L52
Since: 4.0.0
Inherited Members
From Phaser.Renderer.WebGL.RenderNodes.BaseFilterShader:
From Phaser.Renderer.WebGL.RenderNodes.RenderNode: