RenderRadialBlend¶

Overview¶

RenderProgram for a radial blend (essentially a chunk of a radial gradient with only a linear transition between two things.

RenderRadialBlend will interpolate between two different RenderPrograms based on the location. It will evaluate clamp( ( averageFragmentRadius - radius0 ) / ( radius1 - radius0 ), 0, 1 ), and will linearly blend between the "zero" program (when the value is 0) and the "one" program (when the value is 1).

It can be used in a standalone way, however it is primarily meant to be used when a RenderRadialGradient is circular, and is split into each radial-linear partition.

@author Jonathan Olson <jonathan.olson@colorado.edu>

Class RenderRadialBlend¶

import { RenderRadialBlend } from 'scenerystack/alpenglow';

Constructor¶

new RenderRadialBlend( transform : Matrix3, radius0 : number, radius1 : number, accuracy : RenderRadialBlendAccuracy, zero : RenderProgram, one : RenderProgram, logic? : RenderRadialBlendLogic )¶

Instance Methods¶

getName() : string¶

withChildren( children : RenderProgram[] ) : RenderRadialBlend¶

transformed( transform : Matrix3 ) : RenderProgram¶

equalsTyped( other : this ) : boolean¶

(protected)

getSimplified( children : RenderProgram[] ) : RenderProgram | null¶

(protected)

evaluate( context : RenderEvaluationContext ) : Vector4¶

writeInstructions( instructions : RenderInstruction[] )¶

serialize() : SerializedRenderRadialBlend¶

Instance Properties¶

logic : RenderRadialBlendLogic¶

(readonly)

Static Methods¶

deserialize( obj : SerializedRenderRadialBlend ) : RenderRadialBlend¶

Class RenderRadialBlendLogic¶

import { RenderRadialBlendLogic } from 'scenerystack/alpenglow';

Constructor¶

new RenderRadialBlendLogic( transform : Matrix3, radius0 : number, radius1 : number, accuracy : RenderRadialBlendAccuracy )¶

Instance Methods¶

equals( other : RenderRadialBlendLogic ) : boolean¶

computeLinearValue( context : RenderEvaluationContext ) : number¶

Instance Properties¶

inverseTransform : Matrix3¶

(readonly)

Type SerializedRenderRadialBlend¶

import type { SerializedRenderRadialBlend } from 'scenerystack/alpenglow';

• type: "RenderRadialBlend"
• transform: number[]
• radius0: number
• radius1: number
• accuracy: RenderRadialBlendAccuracy
• zero: SerializedRenderProgram
• one: SerializedRenderProgram

Source Code¶

See the source for RenderRadialBlend.ts in the alpenglow repository.