@babylonjs/core
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Getting started? Play directly with the Babylon.js API using our [playground](https://playground.babylonjs.com/). It also contains a lot of samples to learn how to use it.
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JavaScript
import { Vector2, Vector3, Vector4 } from "../../../Maths/math.vector.js";
import { RegisterClass } from "../../../Misc/typeStore.js";
import { NodeParticleBlock } from "../nodeParticleBlock.js";
import { NodeParticleBlockConnectionPointTypes } from "../Enums/nodeParticleBlockConnectionPointTypes.js";
/**
* Block used to normalize lerp between 2 values
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
export class ParticleNLerpBlock extends NodeParticleBlock {
/**
* Creates a new ParticleNLerpBlock
* @param name defines the block name
*/
constructor(name) {
super(name);
this.registerInput("left", NodeParticleBlockConnectionPointTypes.AutoDetect);
this.registerInput("right", NodeParticleBlockConnectionPointTypes.AutoDetect);
this.registerInput("gradient", NodeParticleBlockConnectionPointTypes.Float, true, 0, 0, 1);
this.registerOutput("output", NodeParticleBlockConnectionPointTypes.BasedOnInput);
this._outputs[0]._typeConnectionSource = this._inputs[0];
this._linkConnectionTypes(0, 1);
this._inputs[0].excludedConnectionPointTypes.push(NodeParticleBlockConnectionPointTypes.Matrix);
this._inputs[0].excludedConnectionPointTypes.push(NodeParticleBlockConnectionPointTypes.Particle);
this._inputs[0].excludedConnectionPointTypes.push(NodeParticleBlockConnectionPointTypes.Texture);
}
/**
* Gets the current class name
* @returns the class name
*/
getClassName() {
return "ParticleNLerpBlock";
}
/**
* Gets the left operand input component
*/
get left() {
return this._inputs[0];
}
/**
* Gets the right operand input component
*/
get right() {
return this._inputs[1];
}
/**
* Gets the gradient operand input component
*/
get gradient() {
return this._inputs[2];
}
/**
* Gets the output component
*/
get output() {
return this._outputs[0];
}
_build(_state) {
if (!this.left.isConnected || !this.right.isConnected) {
this.output._storedFunction = null;
this.output._storedValue = null;
return;
}
const func = (gradient, left, right) => {
return (1 - gradient) * left + gradient * right;
};
this.output._storedFunction = (state) => {
const left = this.left.getConnectedValue(state);
const right = this.right.getConnectedValue(state);
const gradient = this.gradient.getConnectedValue(state);
switch (this.left.type) {
case NodeParticleBlockConnectionPointTypes.Int:
case NodeParticleBlockConnectionPointTypes.Float: {
return func(gradient, left, right); // NLerp is really lerp in that case
}
case NodeParticleBlockConnectionPointTypes.Vector2: {
const result = new Vector2(func(gradient, left.x, right.x), func(gradient, left.y, right.y));
result.normalize();
return result;
}
case NodeParticleBlockConnectionPointTypes.Vector3: {
const result = new Vector3(func(gradient, left.x, right.x), func(gradient, left.y, right.y), func(gradient, left.z, right.z));
result.normalize();
return result;
}
case NodeParticleBlockConnectionPointTypes.Color4: {
const result = new Vector4(func(gradient, left.r, right.r), func(gradient, left.g, right.g), func(gradient, left.b, right.b), func(gradient, left.a, right.a));
result.normalize();
return result;
}
}
return 0;
};
return this;
}
}
RegisterClass("BABYLON.ParticleNLerpBlock", ParticleNLerpBlock);
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