Nehon
7 years ago
committed by
Rémy Bouquet
parent
7951f5a987
commit
3bbfabed5e
@ -0,0 +1,29 @@ |
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package com.jme3.scene.plugins.gltf; |
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import com.jme3.asset.ModelKey; |
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import java.util.HashMap; |
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import java.util.Map; |
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/** |
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* Created by Nehon on 08/08/2017. |
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*/ |
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public class GltfModelKey extends ModelKey { |
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private Map<String, MaterialAdapter> materialAdapters = new HashMap<>(); |
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public GltfModelKey(String name) { |
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super(name); |
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} |
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public GltfModelKey() { |
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} |
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public void registerMaterialAdapter(String gltfMaterialName, MaterialAdapter adapter) { |
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materialAdapters.put(gltfMaterialName, adapter); |
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} |
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public MaterialAdapter getAdapterForMaterial(String gltfMaterialName) { |
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return materialAdapters.get(gltfMaterialName); |
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} |
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} |
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package com.jme3.scene.plugins.gltf; |
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import com.jme3.asset.AssetLoadException; |
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import com.jme3.asset.AssetManager; |
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import com.jme3.material.*; |
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import com.jme3.math.*; |
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import com.jme3.shader.VarType; |
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import com.jme3.texture.Texture; |
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import java.util.HashMap; |
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import java.util.Map; |
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/** |
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* A MaterialAdapter allows to map a GLTF material to a JME material. |
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* It maps each gltf parameter to it's matching parameter in the JME material, |
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* and allows for some conversion if the JME material model doesn't exactly match the gltf material model |
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* Created by Nehon on 08/08/2017. |
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*/ |
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public abstract class MaterialAdapter { |
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private Map<String, String> paramsMapping = new HashMap<>(); |
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/** |
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* Should return the material definition used by this material adapter |
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* |
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* @return |
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*/ |
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protected abstract String getMaterialDefPath(); |
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protected abstract MatParam adaptMatParam(Material mat, MatParam param); |
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public Material getMaterial(AssetManager assetManager) { |
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return new Material(assetManager, getMaterialDefPath()); |
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} |
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public void setParam(Material mat, String gltfParamName, Object value) { |
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String name = getJmeParamName(gltfParamName); |
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if (name == null || value == null) { |
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//no mapping registered or value is null, let's ignore this param
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return; |
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} |
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MatParam param; |
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if (value instanceof Texture) { |
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MatParam defParam = mat.getMaterialDef().getMaterialParam(name); |
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if (defParam == null) { |
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throw new AssetLoadException("Material definition " + getMaterialDefPath() + " has not param with name" + name); |
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} |
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if (!(defParam instanceof MatParamTexture)) { |
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throw new AssetLoadException("param with name" + name + "in material definition " + getMaterialDefPath() + " should be a texture param"); |
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} |
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param = new MatParamTexture(VarType.Texture2D, name, (Texture) value, ((MatParamTexture) defParam).getColorSpace()); |
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param = adaptMatParam(mat, param); |
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if (param != null) { |
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mat.setTextureParam(param.getName(), param.getVarType(), (Texture) param.getValue()); |
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} |
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} else { |
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param = new MatParam(getVarType(value), name, value); |
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param = adaptMatParam(mat, param); |
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if (param != null) { |
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mat.setParam(param.getName(), param.getVarType(), param.getValue()); |
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} |
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} |
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} |
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protected void addParamMapping(String gltfParamName, String jmeParamName) { |
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paramsMapping.put(gltfParamName, jmeParamName); |
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} |
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protected String getJmeParamName(String gltfParamName) { |
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return paramsMapping.get(gltfParamName); |
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} |
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private VarType getVarType(Object value) { |
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if (value instanceof Float) return VarType.Float; |
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if (value instanceof Integer) return VarType.Int; |
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if (value instanceof Boolean) return VarType.Boolean; |
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if (value instanceof ColorRGBA) return VarType.Vector4; |
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if (value instanceof Vector4f) return VarType.Vector4; |
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if (value instanceof Vector3f) return VarType.Vector3; |
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if (value instanceof Vector2f) return VarType.Vector2; |
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if (value instanceof Matrix3f) return VarType.Matrix3; |
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if (value instanceof Matrix4f) return VarType.Matrix4; |
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throw new AssetLoadException("Unsupported material parameter type : " + value.getClass().getSimpleName()); |
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} |
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} |
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@ -0,0 +1,58 @@ |
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package com.jme3.scene.plugins.gltf; |
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import com.jme3.material.*; |
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/** |
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* Created by Nehon on 08/08/2017. |
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*/ |
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public class PBRMaterialAdapter extends MaterialAdapter { |
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public PBRMaterialAdapter() { |
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addParamMapping("baseColorFactor", "BaseColor"); |
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addParamMapping("baseColorTexture", "BaseColorMap"); |
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addParamMapping("metallicFactor", "Metallic"); |
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addParamMapping("roughnessFactor", "Roughness"); |
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addParamMapping("metallicRoughnessTexture", "MetallicRoughnessMap"); |
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addParamMapping("normalTexture", "NormalMap"); |
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addParamMapping("occlusionTexture", "LightMap"); |
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addParamMapping("emisiveTexture", "EmissiveMap"); |
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addParamMapping("emisiveFactor", "Emissive"); |
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addParamMapping("alphaMode", "alpha"); |
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addParamMapping("alphaCutoff", "AlphaDiscardThreshold"); |
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addParamMapping("doubleSided", "doubleSided"); |
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} |
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@Override |
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protected String getMaterialDefPath() { |
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return "Common/MatDefs/Light/PBRLighting.j3md"; |
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} |
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@Override |
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protected MatParam adaptMatParam(Material mat, MatParam param) { |
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if (param.getName().equals("alpha")) { |
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String alphaMode = (String) param.getValue(); |
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switch (alphaMode) { |
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case "MASK": |
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case "BLEND": |
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mat.getAdditionalRenderState().setBlendMode(RenderState.BlendMode.Alpha); |
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} |
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return null; |
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} |
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if (param.getName().equals("doubleSided")) { |
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boolean doubleSided = (boolean) param.getValue(); |
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if (doubleSided) { |
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//Note that this is not completely right as normals on the back side will be in the wrong direction.
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mat.getAdditionalRenderState().setFaceCullMode(RenderState.FaceCullMode.Off); |
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} |
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return null; |
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} |
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if (param.getName().equals("MetallicRoughnessMap")) { |
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//use packed Metallic/Roughness
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mat.setBoolean("UsePackedMR", true); |
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} |
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return param; |
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} |
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} |
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