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227 lines
7.0 KiB
227 lines
7.0 KiB
6 months ago
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import { addNodeMaterial } from './NodeMaterial.js';
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import { transformedClearcoatNormalView } from '../accessors/NormalNode.js';
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import { clearcoat, clearcoatRoughness, sheen, sheenRoughness, iridescence, iridescenceIOR, iridescenceThickness, specularColor, specularF90, diffuseColor, metalness, roughness, anisotropy, alphaT, anisotropyT, anisotropyB, ior, transmission, thickness, attenuationDistance, attenuationColor } from '../core/PropertyNode.js';
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import { materialClearcoat, materialClearcoatRoughness, materialClearcoatNormal, materialSheen, materialSheenRoughness, materialIridescence, materialIridescenceIOR, materialIridescenceThickness, materialSpecularIntensity, materialSpecularColor, materialAnisotropy, materialIOR, materialTransmission, materialThickness, materialAttenuationDistance, materialAttenuationColor } from '../accessors/MaterialNode.js';
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import { float, vec2, vec3, If } from '../shadernode/ShaderNode.js';
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import { TBNViewMatrix } from '../accessors/AccessorsUtils.js';
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import PhysicalLightingModel from '../functions/PhysicalLightingModel.js';
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import MeshStandardNodeMaterial from './MeshStandardNodeMaterial.js';
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import { mix, pow2, min } from '../math/MathNode.js';
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import { MeshPhysicalMaterial } from 'three';
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const defaultValues = new MeshPhysicalMaterial();
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class MeshPhysicalNodeMaterial extends MeshStandardNodeMaterial {
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constructor( parameters ) {
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super();
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this.isMeshPhysicalNodeMaterial = true;
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this.clearcoatNode = null;
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this.clearcoatRoughnessNode = null;
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this.clearcoatNormalNode = null;
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this.sheenNode = null;
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this.sheenRoughnessNode = null;
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this.iridescenceNode = null;
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this.iridescenceIORNode = null;
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this.iridescenceThicknessNode = null;
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this.specularIntensityNode = null;
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this.specularColorNode = null;
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this.iorNode = null;
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this.transmissionNode = null;
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this.thicknessNode = null;
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this.attenuationDistanceNode = null;
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this.attenuationColorNode = null;
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this.anisotropyNode = null;
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this.setDefaultValues( defaultValues );
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this.setValues( parameters );
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}
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get useClearcoat() {
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return this.clearcoat > 0 || this.clearcoatNode !== null;
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}
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get useIridescence() {
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return this.iridescence > 0 || this.iridescenceNode !== null;
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}
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get useSheen() {
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return this.sheen > 0 || this.sheenNode !== null;
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}
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get useAnisotropy() {
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return this.anisotropy > 0 || this.anisotropyNode !== null;
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}
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get useTransmission() {
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return this.transmission > 0 || this.transmissionNode !== null;
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}
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setupSpecular() {
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const iorNode = this.iorNode ? float( this.iorNode ) : materialIOR;
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ior.assign( iorNode );
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specularColor.assign( mix( min( pow2( ior.sub( 1.0 ).div( ior.add( 1.0 ) ) ).mul( materialSpecularColor ), vec3( 1.0 ) ).mul( materialSpecularIntensity ), diffuseColor.rgb, metalness ) );
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specularF90.assign( mix( materialSpecularIntensity, 1.0, metalness ) );
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}
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setupLightingModel( /*builder*/ ) {
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return new PhysicalLightingModel( this.useClearcoat, this.useSheen, this.useIridescence, this.useAnisotropy, this.useTransmission );
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}
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setupVariants( builder ) {
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super.setupVariants( builder );
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// CLEARCOAT
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if ( this.useClearcoat ) {
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const clearcoatNode = this.clearcoatNode ? float( this.clearcoatNode ) : materialClearcoat;
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const clearcoatRoughnessNode = this.clearcoatRoughnessNode ? float( this.clearcoatRoughnessNode ) : materialClearcoatRoughness;
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clearcoat.assign( clearcoatNode );
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clearcoatRoughness.assign( clearcoatRoughnessNode );
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}
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// SHEEN
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if ( this.useSheen ) {
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const sheenNode = this.sheenNode ? vec3( this.sheenNode ) : materialSheen;
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const sheenRoughnessNode = this.sheenRoughnessNode ? float( this.sheenRoughnessNode ) : materialSheenRoughness;
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sheen.assign( sheenNode );
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sheenRoughness.assign( sheenRoughnessNode );
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}
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// IRIDESCENCE
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if ( this.useIridescence ) {
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const iridescenceNode = this.iridescenceNode ? float( this.iridescenceNode ) : materialIridescence;
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const iridescenceIORNode = this.iridescenceIORNode ? float( this.iridescenceIORNode ) : materialIridescenceIOR;
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const iridescenceThicknessNode = this.iridescenceThicknessNode ? float( this.iridescenceThicknessNode ) : materialIridescenceThickness;
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iridescence.assign( iridescenceNode );
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iridescenceIOR.assign( iridescenceIORNode );
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iridescenceThickness.assign( iridescenceThicknessNode );
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}
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// ANISOTROPY
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if ( this.useAnisotropy ) {
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const anisotropyV = ( this.anisotropyNode ? vec2( this.anisotropyNode ) : materialAnisotropy ).toVar();
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anisotropy.assign( anisotropyV.length() );
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If( anisotropy.equal( 0.0 ), () => {
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anisotropyV.assign( vec2( 1.0, 0.0 ) );
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} ).else( () => {
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anisotropyV.divAssign( anisotropy );
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anisotropy.assign( anisotropy.saturate() );
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} );
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// Roughness along the anisotropy bitangent is the material roughness, while the tangent roughness increases with anisotropy.
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alphaT.assign( anisotropy.pow2().mix( roughness.pow2(), 1.0 ) );
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anisotropyT.assign( TBNViewMatrix[ 0 ].mul( anisotropyV.x ).add( TBNViewMatrix[ 1 ].mul( anisotropyV.y ) ) );
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anisotropyB.assign( TBNViewMatrix[ 1 ].mul( anisotropyV.x ).sub( TBNViewMatrix[ 0 ].mul( anisotropyV.y ) ) );
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}
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// TRANSMISSION
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if ( this.useTransmission ) {
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const transmissionNode = this.transmissionNode ? float( this.transmissionNode ) : materialTransmission;
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const thicknessNode = this.thicknessNode ? float( this.thicknessNode ) : materialThickness;
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const attenuationDistanceNode = this.attenuationDistanceNode ? float( this.attenuationDistanceNode ) : materialAttenuationDistance;
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const attenuationColorNode = this.attenuationColorNode ? vec3( this.attenuationColorNode ) : materialAttenuationColor;
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transmission.assign( transmissionNode );
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thickness.assign( thicknessNode );
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attenuationDistance.assign( attenuationDistanceNode );
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attenuationColor.assign( attenuationColorNode );
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}
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}
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setupNormal( builder ) {
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super.setupNormal( builder );
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// CLEARCOAT NORMAL
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const clearcoatNormalNode = this.clearcoatNormalNode ? vec3( this.clearcoatNormalNode ) : materialClearcoatNormal;
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transformedClearcoatNormalView.assign( clearcoatNormalNode );
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}
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copy( source ) {
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this.clearcoatNode = source.clearcoatNode;
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this.clearcoatRoughnessNode = source.clearcoatRoughnessNode;
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this.clearcoatNormalNode = source.clearcoatNormalNode;
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this.sheenNode = source.sheenNode;
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this.sheenRoughnessNode = source.sheenRoughnessNode;
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this.iridescenceNode = source.iridescenceNode;
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this.iridescenceIORNode = source.iridescenceIORNode;
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this.iridescenceThicknessNode = source.iridescenceThicknessNode;
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this.specularIntensityNode = source.specularIntensityNode;
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this.specularColorNode = source.specularColorNode;
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this.transmissionNode = source.transmissionNode;
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this.thicknessNode = source.thicknessNode;
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this.attenuationDistanceNode = source.attenuationDistanceNode;
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this.attenuationColorNode = source.attenuationColorNode;
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this.anisotropyNode = source.anisotropyNode;
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return super.copy( source );
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}
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}
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export default MeshPhysicalNodeMaterial;
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addNodeMaterial( 'MeshPhysicalNodeMaterial', MeshPhysicalNodeMaterial );
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