sigonasr2
/
jmonkeyengine
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Support for BMesh loading. Enjoy :)

Browse Source 
git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9519 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
3.0
Kae..pl 13 years ago
parent 691ebcb53d
commit a85db87169
2 changed files with 147 additions and 51 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 7
      engine/src/blender/com/jme3/scene/plugins/blender/meshes/MeshBuilder.java
  2. 185
      engine/src/blender/com/jme3/scene/plugins/blender/meshes/MeshHelper.java

7
engine/src/blender/com/jme3/scene/plugins/blender/meshes/MeshBuilder.java
Unescape View File

@ -259,6 +259,13 @@ import com.jme3.util.BufferUtils;
return uvCoordinates.size() > 0;
}
/**
* @return <b>true</b> if the mesh has no vertices and <b>false</b> otherwise
*/
public boolean isEmpty() {
return vertexMap.size() == 0;
}
/**
* This method adds a normal to a normals' map. This map is used to merge normals of a vertor that should be rendered smooth.
*

185
engine/src/blender/com/jme3/scene/plugins/blender/meshes/MeshHelper.java
Unescape View File

@ -112,59 +112,18 @@ public class MeshHelper extends AbstractBlenderHelper {
MeshBuilder meshBuilder = new MeshBuilder(vertices, verticesColors, this.areGeneratedTexturesPresent(materials));
Pointer pMFace = (Pointer) structure.getFieldValue("mface");
List<Structure> mFaces = null;
if(pMFace.isNotNull()) {
mFaces = pMFace.fetchData(blenderContext.getInputStream());
if (mFaces == null || mFaces.size() == 0) {
return new ArrayList<Geometry>(0);
}
this.readTraditionalFaces(meshBuilder, structure, blenderContext);
} else {
mFaces = new ArrayList<Structure>(0);
this.readBMesh(meshBuilder, structure, blenderContext);
}
Pointer pMTFace = (Pointer) structure.getFieldValue("mtface");
List<Structure> mtFaces = null;
if (pMTFace.isNotNull()) {
mtFaces = pMTFace.fetchData(blenderContext.getInputStream());
int facesAmount = ((Number) structure.getFieldValue("totface")).intValue();
if (mtFaces.size() != facesAmount) {
throw new BlenderFileException("The amount of faces uv coordinates is not equal to faces amount!");
}
}
// indicates if the material with the specified number should have a texture attached
Vector2f[] uvCoordinatesForFace = new Vector2f[3];
for (int i = 0; i < mFaces.size(); ++i) {
Structure mFace = mFaces.get(i);
int materialNumber = ((Number) mFace.getFieldValue("mat_nr")).intValue();
boolean smooth = (((Number) mFace.getFieldValue("flag")).byteValue() & 0x01) != 0x00;
DynamicArray<Number> uvs = null;
if (mtFaces != null) {
Structure mtFace = mtFaces.get(i);
// uvs always must be added wheater we have texture or not
uvs = (DynamicArray<Number>) mtFace.getFieldValue("uv");
uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
uvCoordinatesForFace[1] = new Vector2f(uvs.get(1, 0).floatValue(), uvs.get(1, 1).floatValue());
uvCoordinatesForFace[2] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
if(meshBuilder.isEmpty()) {
geometries = new ArrayList<Geometry>(0);
blenderContext.addLoadedFeatures(structure.getOldMemoryAddress(), structure.getName(), structure, geometries);
blenderContext.setMeshContext(structure.getOldMemoryAddress(), meshContext);
return geometries;
}
int v1 = ((Number) mFace.getFieldValue("v1")).intValue();
int v2 = ((Number) mFace.getFieldValue("v2")).intValue();
int v3 = ((Number) mFace.getFieldValue("v3")).intValue();
int v4 = ((Number) mFace.getFieldValue("v4")).intValue();
meshBuilder.appendFace(v1, v2, v3, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, false, i);
if (v4 > 0) {
if (uvs != null) {
uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
uvCoordinatesForFace[1] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
uvCoordinatesForFace[2] = new Vector2f(uvs.get(3, 0).floatValue(), uvs.get(3, 1).floatValue());
}
meshBuilder.appendFace(v1, v3, v4, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, true, i);
}
}
meshContext.setVertexReferenceMap(meshBuilder.getVertexReferenceMap());
// reading vertices groups (from the parent)
@ -276,6 +235,136 @@ public class MeshHelper extends AbstractBlenderHelper {
return geometries;
}
/**
* This method reads the mesh from the new BMesh system.
*
* @param meshBuilder
* the mesh builder
* @param meshStructure
* the mesh structure
* @param blenderContext
* the blender context
* @throws BlenderFileException
* an exception is thrown when there are problems with the
* blender file
*/
@SuppressWarnings("unchecked")
private void readBMesh(MeshBuilder meshBuilder, Structure meshStructure, BlenderContext blenderContext) throws BlenderFileException {
Pointer pMLoop = (Pointer) meshStructure.getFieldValue("mloop");
Pointer pMPoly = (Pointer) meshStructure.getFieldValue("mpoly");
Pointer pMEdge = (Pointer) meshStructure.getFieldValue("medge");
Pointer pMLoopUV = (Pointer) meshStructure.getFieldValue("mloopuv");
Vector2f[] uvCoordinatesForFace = new Vector2f[3];
if (pMPoly.isNotNull() && pMLoop.isNotNull() && pMEdge.isNotNull()) {
int faceIndex = 0;
List<Structure> polys = pMPoly.fetchData(blenderContext.getInputStream());
List<Structure> loops = pMLoop.fetchData(blenderContext.getInputStream());
List<Structure> loopuvs = pMLoopUV.isNotNull() ? pMLoopUV.fetchData(blenderContext.getInputStream()) : null;
for (Structure poly : polys) {
int materialNumber = ((Number) poly.getFieldValue("mat_nr")).intValue();
int loopStart = ((Number) poly.getFieldValue("loopstart")).intValue();
int totLoop = ((Number) poly.getFieldValue("totloop")).intValue();
boolean smooth = (((Number) poly.getFieldValue("flag")).byteValue() & 0x01) != 0x00;
int[] vertexIndexes = new int[totLoop];
Vector2f[] uvs = loopuvs != null ? new Vector2f[totLoop] : null;
for (int i = loopStart; i < loopStart + totLoop; ++i) {
vertexIndexes[i - loopStart] = ((Number) loops.get(i).getFieldValue("v")).intValue();
if (uvs != null) {
DynamicArray<Number> loopUVS = (DynamicArray<Number>) loopuvs.get(i).getFieldValue("uv");
uvs[i - loopStart] = new Vector2f(loopUVS.get(0).floatValue(), loopUVS.get(1).floatValue());
}
}
int i = 0;
while (i < totLoop - 2) {
int v1 = vertexIndexes[0];
int v2 = vertexIndexes[i + 1];
int v3 = vertexIndexes[i + 2];
if (uvs != null) {// uvs always must be added wheater we
// have texture or not
uvCoordinatesForFace[0] = uvs[0];
uvCoordinatesForFace[1] = uvs[i + 1];
uvCoordinatesForFace[2] = uvs[i + 2];
}
meshBuilder.appendFace(v1, v2, v3, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, false, faceIndex);
++i;
}
++faceIndex;
}
}
}
/**
* This method reads the mesh from traditional triangle/quad storing
* structures.
*
* @param meshBuilder
* the mesh builder
* @param meshStructure
* the mesh structure
* @param blenderContext
* the blender context
* @throws BlenderFileException
* an exception is thrown when there are problems with the
* blender file
*/
@SuppressWarnings("unchecked")
private void readTraditionalFaces(MeshBuilder meshBuilder, Structure meshStructure, BlenderContext blenderContext) throws BlenderFileException {
Pointer pMFace = (Pointer) meshStructure.getFieldValue("mface");
List<Structure> mFaces = pMFace.fetchData(blenderContext.getInputStream());
if (mFaces != null && mFaces.size() > 0) {
Pointer pMTFace = (Pointer) meshStructure.getFieldValue("mtface");
List<Structure> mtFaces = null;
if (pMTFace.isNotNull()) {
mtFaces = pMTFace.fetchData(blenderContext.getInputStream());
int facesAmount = ((Number) meshStructure.getFieldValue("totface")).intValue();
if (mtFaces.size() != facesAmount) {
throw new BlenderFileException("The amount of faces uv coordinates is not equal to faces amount!");
}
}
// indicates if the material with the specified number should have a
// texture attached
Vector2f[] uvCoordinatesForFace = new Vector2f[3];
for (int i = 0; i < mFaces.size(); ++i) {
Structure mFace = mFaces.get(i);
int materialNumber = ((Number) mFace.getFieldValue("mat_nr")).intValue();
boolean smooth = (((Number) mFace.getFieldValue("flag")).byteValue() & 0x01) != 0x00;
DynamicArray<Number> uvs = null;
if (mtFaces != null) {
Structure mtFace = mtFaces.get(i);
// uvs always must be added wheater we have texture or not
uvs = (DynamicArray<Number>) mtFace.getFieldValue("uv");
uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
uvCoordinatesForFace[1] = new Vector2f(uvs.get(1, 0).floatValue(), uvs.get(1, 1).floatValue());
uvCoordinatesForFace[2] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
}
int v1 = ((Number) mFace.getFieldValue("v1")).intValue();
int v2 = ((Number) mFace.getFieldValue("v2")).intValue();
int v3 = ((Number) mFace.getFieldValue("v3")).intValue();
int v4 = ((Number) mFace.getFieldValue("v4")).intValue();
meshBuilder.appendFace(v1, v2, v3, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, false, i);
if (v4 > 0) {
if (uvs != null) {
uvCoordinatesForFace[0] = new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue());
uvCoordinatesForFace[1] = new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue());
uvCoordinatesForFace[2] = new Vector2f(uvs.get(3, 0).floatValue(), uvs.get(3, 1).floatValue());
}
meshBuilder.appendFace(v1, v3, v4, smooth, materialNumber, uvs == null ? null : uvCoordinatesForFace, true, i);
}
}
}
}
/**
* @return <b>true</b> if the material has at least one generated component and <b>false</b> otherwise
*/

Write Preview
Loading…
Cancel
Save