Aspose.3D FOSS
Java
Material

Material and PbrMaterial — Aspose.3D FOSS for Java

Properties: com.aspose.threed.shading (aspose-3d-foss)

Aspose.3D FOSS for Java leverer to materialklasser:

  • Material: abstrakt grundklasse for alle materialetyper. Giver et navn og en egenskabssamling for numeriske og farveparametre.
  • PbrMaterial: Physically Based Rendering-materiale med metalness, roughness, albedo og emissive egenskaber. Bruges af glTF 2.0 og andre PBR-kompatible formater.

Materialer tildeles en Node via node.setMaterial(material).

Properties 

public abstract class Material extends A3DObject

Properties

A3DObject -> Material

Material er den abstrakte grundklasse for alle materialetyper. Den giver navneegenskaben og en Properties samling for brugerdefineret metadata. Du skal ikke instantierer Material direkte; brug PbrMaterial i stedet.

PbrMaterial 

public class PbrMaterial extends Material

Properties

A3DObject -> Material -> PbrMaterial

PBR (Physically Based Rendering) materiale. Bruges af glTF 2.0 og andre PBR-kompatible formater. Tildelt til en Node via node.setMaterial(material).

Properties 

PbrMaterial()
PbrMaterial(String name)
PbrMaterial(String name, Vector4 albedo)

Properties

PropertiesPropertiesPropertiesPropertiesProperties
albedoVector4getAlbedo()setAlbedo(Vector4)Basiskolor (albedo) på overfladen som RGBA. Standard null.
metallicFactordoublegetMetallicFactor()setMetallicFactor(double)Metallisk bidrag: 0.0 = fuldt dielektrisk, 1.0 = fuldt metallisk.
roughnessFactordoublegetRoughnessFactor()setRoughnessFactor(double)Overfladerughed: 0.0 = glat/spejl, 1.0 = helt ru.
emissiveColorVector3getEmissiveColor()setEmissiveColor(Vector3)= Selvudsendt lysfarve. Standard null.
transparencydoublegetTransparency()setTransparency(double)= Opacitetsniveau: 0.0 = fuldt uigennemsigtigt, 1.0 = fuldt gennemsigtigt.

Brugseksempel 

import com.aspose.threed.*;
import com.aspose.threed.shading.PbrMaterial;

Scene scene = new Scene();

Mesh mesh = new Mesh();
mesh.getControlPoints().add(new Vector4(0, 0, 0, 1));
mesh.getControlPoints().add(new Vector4(1, 0, 0, 1));
mesh.getControlPoints().add(new Vector4(0.5, 1, 0, 1));
mesh.createPolygon(0, 1, 2);

PbrMaterial mat = new PbrMaterial("pbr-metal");
mat.setAlbedo(new Vector4(0.8, 0.6, 0.2, 1.0));    // gold-ish base color
mat.setMetallicFactor(0.9);
mat.setRoughnessFactor(0.2);

Node node = scene.getRootNode().createChildNode("mesh", mesh);
node.setMaterial(mat);

scene.save("pbr.glb");

Semi-gennemsigtigt PBR-materiale 

import com.aspose.threed.shading.PbrMaterial;

PbrMaterial mat = new PbrMaterial("glass");
mat.setAlbedo(new Vector4(0.7, 0.9, 1.0, 1.0));
mat.setTransparency(0.7);   // 70% transparent
mat.setRoughnessFactor(0.1);

Læs materiale fra importeret scene 

import com.aspose.threed.*;
import com.aspose.threed.shading.PbrMaterial;

Scene scene = new Scene();
scene.open("model.gltf");

inspectNode(scene.getRootNode());

static void inspectNode(Node node) {
    if (node.getMaterial() != null) {
        Material m = node.getMaterial();
        if (m instanceof PbrMaterial) {
            PbrMaterial pbr = (PbrMaterial) m;
            System.out.println("Node '" + node.getName() + "': PbrMaterial");
            System.out.println("  albedo=" + pbr.getAlbedo());
            System.out.println("  metallic=" + pbr.getMetallicFactor());
            System.out.println("  roughness=" + pbr.getRoughnessFactor());
        } else {
            System.out.println("Node '" + node.getName() + "': " + m.getClass().getSimpleName());
        }
    }
    for (Node child : node.getChildNodes()) {
        inspectNode(child);
    }
}

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