Support for BMesh loading. Enjoy :)
git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9519 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
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Kae..pl
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@ -259,6 +259,13 @@ import com.jme3.util.BufferUtils;
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return uvCoordinates.size() > 0;
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return uvCoordinates.size() > 0;
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}
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}
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/**
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* @return <b>true</b> if the mesh has no vertices and <b>false</b> otherwise
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*/
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public boolean isEmpty() {
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return vertexMap.size() == 0;
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}
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/**
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/**
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* This method adds a normal to a normals' map. This map is used to merge normals of a vertor that should be rendered smooth.
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* This method adds a normal to a normals' map. This map is used to merge normals of a vertor that should be rendered smooth.
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*
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*
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@ -112,59 +112,18 @@ public class MeshHelper extends AbstractBlenderHelper {
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MeshBuilder meshBuilder = new MeshBuilder(vertices, verticesColors, this.areGeneratedTexturesPresent(materials));
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MeshBuilder meshBuilder = new MeshBuilder(vertices, verticesColors, this.areGeneratedTexturesPresent(materials));
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Pointer pMFace = (Pointer) structure.getFieldValue("mface");
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Pointer pMFace = (Pointer) structure.getFieldValue("mface");
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List<Structure> mFaces = null;
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if(pMFace.isNotNull()) {
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if (pMFace.isNotNull()) {
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this.readTraditionalFaces(meshBuilder, structure, blenderContext);
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mFaces = pMFace.fetchData(blenderContext.getInputStream());
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} else {
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if (mFaces == null || mFaces.size() == 0) {
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this.readBMesh(meshBuilder, structure, blenderContext);
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return new ArrayList<Geometry>(0);
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}
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}
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if(meshBuilder.isEmpty()) {
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} else{
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geometries = new ArrayList<Geometry>(0);
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mFaces = new ArrayList<Structure>(0);
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blenderContext.addLoadedFeatures(structure.getOldMemoryAddress(), structure.getName(), structure, geometries);
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blenderContext.setMeshContext(structure.getOldMemoryAddress(), meshContext);
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return geometries;
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}
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}
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Pointer pMTFace = (Pointer) structure.getFieldValue("mtface");
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List<Structure> mtFaces = null;
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if (pMTFace.isNotNull()) {
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mtFaces = pMTFace.fetchData(blenderContext.getInputStream());
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int facesAmount = ((Number) structure.getFieldValue("totface")).intValue();
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if (mtFaces.size() != facesAmount) {
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throw new BlenderFileException("The amount of faces uv coordinates is not equal to faces amount!");
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}
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}
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// indicates if the material with the specified number should have a texture attached
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Vector2f[] uvCoordinatesForFace = new Vector2f[3];
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for (int i = 0; i < mFaces.size(); ++i) {
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Structure mFace = mFaces.get(i);
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int materialNumber = ((Number) mFace.getFieldValue("mat_nr")).intValue();
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boolean smooth = (((Number) mFace.getFieldValue("flag")).byteValue() & 0x01) != 0x00;
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DynamicArray<Number> uvs = null;
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if (mtFaces != null) {
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Structure mtFace = mtFaces.get(i);
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// uvs always must be added wheater we have texture or not
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uvs = (DynamicArray<Number>) mtFace.getFieldValue("uv");
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uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
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uvCoordinatesForFace[1] = new Vector2f(uvs.get(1, 0).floatValue(), uvs.get(1, 1).floatValue());
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uvCoordinatesForFace[2] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
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}
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int v1 = ((Number) mFace.getFieldValue("v1")).intValue();
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int v2 = ((Number) mFace.getFieldValue("v2")).intValue();
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int v3 = ((Number) mFace.getFieldValue("v3")).intValue();
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int v4 = ((Number) mFace.getFieldValue("v4")).intValue();
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meshBuilder.appendFace(v1, v2, v3, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, false, i);
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if (v4 > 0) {
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if (uvs != null) {
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uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
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uvCoordinatesForFace[1] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
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uvCoordinatesForFace[2] = new Vector2f(uvs.get(3, 0).floatValue(), uvs.get(3, 1).floatValue());
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}
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meshBuilder.appendFace(v1, v3, v4, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, true, i);
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}
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}
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meshContext.setVertexReferenceMap(meshBuilder.getVertexReferenceMap());
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meshContext.setVertexReferenceMap(meshBuilder.getVertexReferenceMap());
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// reading vertices groups (from the parent)
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// reading vertices groups (from the parent)
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@ -276,6 +235,136 @@ public class MeshHelper extends AbstractBlenderHelper {
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return geometries;
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return geometries;
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}
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}
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/**
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* This method reads the mesh from the new BMesh system.
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*
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* @param meshBuilder
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* the mesh builder
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* @param meshStructure
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* the mesh structure
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* @param blenderContext
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* the blender context
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* @throws BlenderFileException
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* an exception is thrown when there are problems with the
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* blender file
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*/
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@SuppressWarnings("unchecked")
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private void readBMesh(MeshBuilder meshBuilder, Structure meshStructure, BlenderContext blenderContext) throws BlenderFileException {
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Pointer pMLoop = (Pointer) meshStructure.getFieldValue("mloop");
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Pointer pMPoly = (Pointer) meshStructure.getFieldValue("mpoly");
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Pointer pMEdge = (Pointer) meshStructure.getFieldValue("medge");
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Pointer pMLoopUV = (Pointer) meshStructure.getFieldValue("mloopuv");
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Vector2f[] uvCoordinatesForFace = new Vector2f[3];
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if (pMPoly.isNotNull() && pMLoop.isNotNull() && pMEdge.isNotNull()) {
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int faceIndex = 0;
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List<Structure> polys = pMPoly.fetchData(blenderContext.getInputStream());
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List<Structure> loops = pMLoop.fetchData(blenderContext.getInputStream());
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List<Structure> loopuvs = pMLoopUV.isNotNull() ? pMLoopUV.fetchData(blenderContext.getInputStream()) : null;
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for (Structure poly : polys) {
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int materialNumber = ((Number) poly.getFieldValue("mat_nr")).intValue();
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int loopStart = ((Number) poly.getFieldValue("loopstart")).intValue();
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int totLoop = ((Number) poly.getFieldValue("totloop")).intValue();
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boolean smooth = (((Number) poly.getFieldValue("flag")).byteValue() & 0x01) != 0x00;
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int[] vertexIndexes = new int[totLoop];
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Vector2f[] uvs = loopuvs != null ? new Vector2f[totLoop] : null;
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for (int i = loopStart; i < loopStart + totLoop; ++i) {
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vertexIndexes[i - loopStart] = ((Number) loops.get(i).getFieldValue("v")).intValue();
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if (uvs != null) {
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DynamicArray<Number> loopUVS = (DynamicArray<Number>) loopuvs.get(i).getFieldValue("uv");
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uvs[i - loopStart] = new Vector2f(loopUVS.get(0).floatValue(), loopUVS.get(1).floatValue());
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}
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}
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int i = 0;
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while (i < totLoop - 2) {
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int v1 = vertexIndexes[0];
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int v2 = vertexIndexes[i + 1];
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int v3 = vertexIndexes[i + 2];
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if (uvs != null) {// uvs always must be added wheater we
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// have texture or not
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uvCoordinatesForFace[0] = uvs[0];
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uvCoordinatesForFace[1] = uvs[i + 1];
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uvCoordinatesForFace[2] = uvs[i + 2];
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}
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meshBuilder.appendFace(v1, v2, v3, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, false, faceIndex);
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++i;
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}
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++faceIndex;
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}
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}
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}
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/**
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* This method reads the mesh from traditional triangle/quad storing
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* structures.
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*
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* @param meshBuilder
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* the mesh builder
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* @param meshStructure
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* the mesh structure
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* @param blenderContext
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* the blender context
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* @throws BlenderFileException
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* an exception is thrown when there are problems with the
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* blender file
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*/
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@SuppressWarnings("unchecked")
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private void readTraditionalFaces(MeshBuilder meshBuilder, Structure meshStructure, BlenderContext blenderContext) throws BlenderFileException {
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Pointer pMFace = (Pointer) meshStructure.getFieldValue("mface");
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List<Structure> mFaces = pMFace.fetchData(blenderContext.getInputStream());
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if (mFaces != null && mFaces.size() > 0) {
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Pointer pMTFace = (Pointer) meshStructure.getFieldValue("mtface");
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List<Structure> mtFaces = null;
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if (pMTFace.isNotNull()) {
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mtFaces = pMTFace.fetchData(blenderContext.getInputStream());
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int facesAmount = ((Number) meshStructure.getFieldValue("totface")).intValue();
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if (mtFaces.size() != facesAmount) {
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throw new BlenderFileException("The amount of faces uv coordinates is not equal to faces amount!");
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}
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}
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// indicates if the material with the specified number should have a
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// texture attached
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Vector2f[] uvCoordinatesForFace = new Vector2f[3];
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for (int i = 0; i < mFaces.size(); ++i) {
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Structure mFace = mFaces.get(i);
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int materialNumber = ((Number) mFace.getFieldValue("mat_nr")).intValue();
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boolean smooth = (((Number) mFace.getFieldValue("flag")).byteValue() & 0x01) != 0x00;
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DynamicArray<Number> uvs = null;
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if (mtFaces != null) {
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Structure mtFace = mtFaces.get(i);
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// uvs always must be added wheater we have texture or not
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uvs = (DynamicArray<Number>) mtFace.getFieldValue("uv");
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uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
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uvCoordinatesForFace[1] = new Vector2f(uvs.get(1, 0).floatValue(), uvs.get(1, 1).floatValue());
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uvCoordinatesForFace[2] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
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}
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int v1 = ((Number) mFace.getFieldValue("v1")).intValue();
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int v2 = ((Number) mFace.getFieldValue("v2")).intValue();
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int v3 = ((Number) mFace.getFieldValue("v3")).intValue();
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int v4 = ((Number) mFace.getFieldValue("v4")).intValue();
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meshBuilder.appendFace(v1, v2, v3, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, false, i);
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if (v4 > 0) {
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if (uvs != null) {
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uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
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uvCoordinatesForFace[1] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
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uvCoordinatesForFace[2] = new Vector2f(uvs.get(3, 0).floatValue(), uvs.get(3, 1).floatValue());
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}
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meshBuilder.appendFace(v1, v3, v4, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, true, i);
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}
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}
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}
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}
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/**
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/**
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* @return <b>true</b> if the material has at least one generated component and <b>false</b> otherwise
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* @return <b>true</b> if the material has at least one generated component and <b>false</b> otherwise
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*/
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*/
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