@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 { NodeGeometryBlockConnectionPointTypes } from "../Enums/nodeGeometryConnectionPointTypes.js";
import { NodeGeometryBlock } from "../nodeGeometryBlock.js";
/**
* Block used to smooth step a value
*/
export class GeometrySmoothStepBlock extends NodeGeometryBlock {
/**
* Creates a new GeometrySmoothStepBlock
* @param name defines the block name
*/
constructor(name) {
super(name);
this.registerInput("value", NodeGeometryBlockConnectionPointTypes.AutoDetect);
this.registerInput("edge0", NodeGeometryBlockConnectionPointTypes.Float, true, 0);
this.registerInput("edge1", NodeGeometryBlockConnectionPointTypes.Float, true, 1);
this.registerOutput("output", NodeGeometryBlockConnectionPointTypes.BasedOnInput);
this._outputs[0]._typeConnectionSource = this._inputs[0];
this._inputs[0].excludedConnectionPointTypes.push(NodeGeometryBlockConnectionPointTypes.Matrix);
this._inputs[0].excludedConnectionPointTypes.push(NodeGeometryBlockConnectionPointTypes.Geometry);
this._inputs[0].excludedConnectionPointTypes.push(NodeGeometryBlockConnectionPointTypes.Texture);
}
/**
* Gets the current class name
* @returns the class name
*/
getClassName() {
return "GeometrySmoothStepBlock";
}
/**
* Gets the value operand input component
*/
get value() {
return this._inputs[0];
}
/**
* Gets the first edge operand input component
*/
get edge0() {
return this._inputs[1];
}
/**
* Gets the second edge operand input component
*/
get edge1() {
return this._inputs[2];
}
/**
* Gets the output component
*/
get output() {
return this._outputs[0];
}
_buildBlock() {
if (!this.value.isConnected) {
this.output._storedFunction = null;
this.output._storedValue = null;
return;
}
const func = (value, edge0, edge1) => {
const x = Math.max(0, Math.min((value - edge0) / (edge1 - edge0), 1));
// Smoothstep formula: 3x^2 - 2x^3
return x * x * (3 - 2 * x);
};
this.output._storedFunction = (state) => {
const source = this.value.getConnectedValue(state);
const edge0 = this.edge0.getConnectedValue(state);
const edge1 = this.edge1.getConnectedValue(state);
switch (this.value.type) {
case NodeGeometryBlockConnectionPointTypes.Int:
case NodeGeometryBlockConnectionPointTypes.Float: {
return func(source, edge0, edge1);
}
case NodeGeometryBlockConnectionPointTypes.Vector2: {
return new Vector2(func(source.x, edge0, edge1), func(source.y, edge0, edge1));
}
case NodeGeometryBlockConnectionPointTypes.Vector3: {
return new Vector3(func(source.x, edge0, edge1), func(source.y, edge0, edge1), func(source.z, edge0, edge1));
}
case NodeGeometryBlockConnectionPointTypes.Vector4: {
return new Vector4(func(source.x, edge0, edge1), func(source.y, edge0, edge1), func(source.z, edge0, edge1), func(source.w, edge0, edge1));
}
}
return 0;
};
return this;
}
}
RegisterClass("BABYLON.GeometrySmoothStepBlock", GeometrySmoothStepBlock);
//# sourceMappingURL=geometrySmoothStepBlock.js.map