MCP 3D Printer Server

by DMontgomery40
Verified
import { positionView } from '../accessors/Position.js'; import { smoothstep } from '../math/MathNode.js'; import { Fn, output, vec4 } from '../tsl/TSLBase.js'; /** @module Fog **/ /** * Returns a node that represents the `z` coordinate in view space * for the current fragment. It's a different representation of the * default depth value. * * This value can be part of a computation that defines how the fog * density increases when moving away from the camera. * * @param {NodeBuilder} builder - The current node builder. * @return {Node} The viewZ node. */ function getViewZNode( builder ) { let viewZ; const getViewZ = builder.context.getViewZ; if ( getViewZ !== undefined ) { viewZ = getViewZ( this ); } return ( viewZ || positionView.z ).negate(); } /** * Constructs a new range factor node. * * @function * @param {Node} near - Defines the near value. * @param {Node} far - Defines the far value. */ export const rangeFogFactor = Fn( ( [ near, far ], builder ) => { const viewZ = getViewZNode( builder ); return smoothstep( near, far, viewZ ); } ); /** * Represents an exponential squared fog. This type of fog gives * a clear view near the camera and a faster than exponentially * densening fog farther from the camera. * * @function * @param {Node} density - Defines the fog density. */ export const densityFogFactor = Fn( ( [ density ], builder ) => { const viewZ = getViewZNode( builder ); return density.mul( density, viewZ, viewZ ).negate().exp().oneMinus(); } ); /** * This class can be used to configure a fog for the scene. * Nodes of this type are assigned to `Scene.fogNode`. * * @function * @param {Node} color - Defines the color of the fog. * @param {Node} factor - Defines how the fog is factored in the scene. */ export const fog = Fn( ( [ color, factor ] ) => { return vec4( factor.toFloat().mix( output.rgb, color.toVec3() ), output.a ); } ); // Deprecated /** * @function * @deprecated since r171. Use `fog( color, rangeFogFactor( near, far ) )` instead. * * @param {Node} color * @param {Node} near * @param {Node} far * @returns {Function} */ export function rangeFog( color, near, far ) { // @deprecated, r171 console.warn( 'THREE.TSL: "rangeFog( color, near, far )" is deprecated. Use "fog( color, rangeFogFactor( near, far ) )" instead.' ); return fog( color, rangeFogFactor( near, far ) ); } /** * @function * @deprecated since r171. Use `fog( color, densityFogFactor( density ) )` instead. * * @param {Node} color * @param {Node} density * @returns {Function} */ export function densityFog( color, density ) { // @deprecated, r171 console.warn( 'THREE.TSL: "densityFog( color, density )" is deprecated. Use "fog( color, densityFogFactor( density ) )" instead.' ); return fog( color, densityFogFactor( density ) ); }