public SkySphere(Vector3 position, float scale, Texture texture) {
this.scale = scale;
this.position = position;
this.mTexture = texture;
VertexBufferDeclaration vbd = new VertexBufferDeclaration();
vbd.add(
new VertexBufferDefinition(
VertexBufferDefinition.FLOAT,
VertexBufferDefinition.DEF_VERTEX,
3,
VertexBufferDefinition.ACCESS_DYNAMIC));
vbd.add(
new VertexBufferDefinition(
VertexBufferDefinition.FLOAT,
VertexBufferDefinition.DEF_TEXTURE_COORD,
2,
VertexBufferDefinition.ACCESS_DYNAMIC));
vbd.add(
new VertexBufferDefinition(
VertexBufferDefinition.FLOAT,
VertexBufferDefinition.DEF_NORMAL,
3,
VertexBufferDefinition.ACCESS_DYNAMIC));
mVertexBuffer = new VertexBuffer(128, vbd);
mIndexBuffer = new IndexBufferShort(GLES20.GL_TRIANGLES, 256 * 3);
mIndexBuffer.put(indexdata);
mVertexBuffer.getBuffer(0).put(vertexdata);
mVertexBuffer.getBuffer(1).put(stdata);
mVertexBuffer.getBuffer(2).put(normaldata);
}
private void renderLines() {
if (phenixLineProgram != null) {
if (!phenixLineProgram.use()) {
return;
}
float angle =
360.0f * getTimeDeltaByScale((long) (1 * 50000L / speedFactor / rotationSpeedFactor));
Matrix.setRotateM(M_matrix, 0, angle, 0, 0, 1.0f);
Matrix.multiplyMM(MVP_matrix, 0, V_matrix, 0, M_matrix, 0);
Matrix.multiplyMM(MVP_matrix, 0, P_matrix, 0, MVP_matrix, 0);
float delta = getTimeDeltaByScale((long) (1 * 25000L / speedFactor));
lineVertices.bind(phenixLineProgram, "aPosition", null);
GLES20.glUniformMatrix4fv(
phenixLineProgram.getUniformLocation("uMVPMatrix"), 1, false, MVP_matrix, 0);
GLES20.glUniform1f(phenixLineProgram.getUniformLocation("uDelta"), delta);
GLES20.glUniform1f(
phenixLineProgram.getUniformLocation("uBrightness"), brightness * brightnessFactor);
GLES20.glUniform3f(
phenixLineProgram.getUniformLocation("uColor"),
linesColorRed,
linesColorGreen,
linesColorBlue);
GLES20.glEnable(GLES20.GL_BLEND);
GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE);
GLES20.glLineWidth(lineWidth * lineWidthFactor);
lineVertices.draw(GLES20.GL_LINES, 0, MOVING_LINE_COUNT);
GLES20.glUniform1f(phenixLineProgram.getUniformLocation("uDelta"), 0.0f);
lineVertices.draw(GLES20.GL_LINES, MOVING_LINE_COUNT, STALE_LINE_COUNT);
GLES20.glDisable(GLES20.GL_BLEND);
lineVertices.unbind(phenixLineProgram, "aPosition", null);
}
}
private void renderBlurTexture(int textureIndex) {
if (postProgram.use()) {
renderTextures[textureIndex].bind(GLES20.GL_TEXTURE0, postProgram, "sTexture");
quadVertices.bind(postProgram, "aPosition", "aTextureCoord");
GLES20.glUniform1f(postProgram.getUniformLocation("uBlur"), blur * blurFactor);
GLES20.glUniformMatrix4fv(
postProgram.getUniformLocation("uMVPMatrix"), 1, false, Q_matrix, 0);
GLES20.glEnable(GLES20.GL_BLEND);
GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE);
quadVertices.draw(GLES20.GL_TRIANGLE_STRIP);
GLES20.glDisable(GLES20.GL_BLEND);
quadVertices.unbind(postProgram, "aPosition", "aTextureCoord");
renderTextures[textureIndex].unbind(GLES20.GL_TEXTURE0);
}
}
public void Draw() {
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTexture.getID());
GLES20.glDisable(GLES20.GL_DEPTH_TEST);
// GLES20.glDisable(GLES20.GL_CULL_FACE);
// GLES20.glDisable(GLES20.GL_LIGHTING);
// GLES20.glPushMatrix();
// GLES20.glTranslatef(position.X, position.Y, position.Z);
Renderer.pushModelViewMatrix();
Renderer.modelview.translate(position.X, position.Y, position.Z);
// GLES20.glScalef(scale, scale, scale);
Renderer.modelview.scale(scale, scale, scale);
Renderer.loadModelViewMatrix();
mVertexBuffer.Draw(mIndexBuffer);
// GLES20.glPopMatrix();
Renderer.popModelViewMatrix();
Renderer.loadModelViewMatrix();
GLES20.glEnable(GLES20.GL_DEPTH_TEST);
// GLES20.glEnable(GLES20.GL_CULL_FACE);
// GLES20.glEnable(GLES20.GL_LIGHTING);
}
private static AttributeData[] createAttributeData(VertexBuffer vbuffer) {
List<AttributeData> attribute = new ArrayList<>();
for (Element el : vbuffer.layout.getElements()) {
if (el.equals(POSITION) || el.equals(NORMAL) || el.equals(TEX_COORD)) {
continue;
}
if (el.getDataType() != FLOAT
|| el.getVectorType().getElementCount() > CTM_ATTR_ELEMENT_COUNT) {
logger.warn(
"The mesh-attribute "
+ el.toString()
+ " can't be exported to the ctm format! Only float "
+ "attributes with max. 4 elements are supported.");
continue;
}
float[] values = new float[vbuffer.getVcount() * CTM_ATTR_ELEMENT_COUNT];
{
int k = 0;
for (Vertex v : vbuffer) {
copyToBuffer(values, k, v, el);
k += CTM_ATTR_ELEMENT_COUNT;
}
}
attribute.add(
new AttributeData(el.getBezeichnung(), null, AttributeData.STANDARD_PRECISION, values));
}
AttributeData[] atts = new AttributeData[attribute.size()];
attribute.toArray(atts);
return atts;
}
public static Object3D[] load(byte[] data, int offset) {
DataInputStream old = dis;
dis = new DataInputStream(new ByteArrayInputStream(data));
try {
while (dis.available() > 0) {
int objectType = readByte();
int length = readInt();
System.out.println("objectType: " + objectType);
System.out.println("length: " + length);
dis.mark(Integer.MAX_VALUE);
if (objectType == 0) {
int versionHigh = readByte();
int versionLow = readByte();
boolean hasExternalReferences = readBoolean();
int totolFileSize = readInt();
int approximateContentSize = readInt();
String authoringField = readString();
objs.addElement(new Group()); // dummy
} else if (objectType == 255) {
// TODO: load external resource
System.out.println("Loader: Loading external resources not implemented.");
String uri = readString();
} else if (objectType == 1) {
System.out.println("Loader: AnimationController not implemented.");
objs.addElement(new Group()); // dummy
} else if (objectType == 2) {
System.out.println("Loader: AnimationTrack not implemented.");
objs.addElement(new Group()); // dummy
} else if (objectType == 3) {
// System.out.println("Appearance");
Appearance appearance = new Appearance();
loadObject3D(appearance);
appearance.setLayer(readByte());
appearance.setCompositingMode((CompositingMode) getObject(readInt()));
appearance.setFog((Fog) getObject(readInt()));
appearance.setPolygonMode((PolygonMode) getObject(readInt()));
appearance.setMaterial((Material) getObject(readInt()));
int numTextures = readInt();
for (int i = 0; i < numTextures; ++i)
appearance.setTexture(i, (Texture2D) getObject(readInt()));
objs.addElement(appearance);
} else if (objectType == 4) {
// System.out.println("Background");
Background background = new Background();
loadObject3D(background);
background.setColor(readRGBA());
background.setImage((Image2D) getObject(readInt()));
int modeX = readByte();
int modeY = readByte();
background.setImageMode(modeX, modeY);
int cropX = readInt();
int cropY = readInt();
int cropWidth = readInt();
int cropHeight = readInt();
background.setCrop(cropX, cropY, cropWidth, cropHeight);
background.setDepthClearEnable(readBoolean());
background.setColorClearEnable(readBoolean());
objs.addElement(background); // dummy
} else if (objectType == 5) {
// System.out.println("Camera");
Camera camera = new Camera();
loadNode(camera);
int projectionType = readByte();
if (projectionType == Camera.GENERIC) {
Transform t = new Transform();
t.set(readMatrix());
camera.setGeneric(t);
} else {
float fovy = readFloat();
float aspect = readFloat();
float near = readFloat();
float far = readFloat();
if (projectionType == Camera.PARALLEL) camera.setParallel(fovy, aspect, near, far);
else camera.setPerspective(fovy, aspect, near, far);
}
objs.addElement(camera);
} else if (objectType == 6) {
// System.out.println("CompositingMode");
CompositingMode compositingMode = new CompositingMode();
loadObject3D(compositingMode);
compositingMode.setDepthTestEnabled(readBoolean());
compositingMode.setDepthWriteEnabled(readBoolean());
compositingMode.setColorWriteEnabled(readBoolean());
compositingMode.setAlphaWriteEnabled(readBoolean());
compositingMode.setBlending(readByte());
compositingMode.setAlphaThreshold((float) readByte() / 255.0f);
compositingMode.setDepthOffsetFactor(readFloat());
compositingMode.setDepthOffsetUnits(readFloat());
objs.addElement(compositingMode);
} else if (objectType == 7) {
// System.out.println("Fog");
Fog fog = new Fog();
loadObject3D(fog);
fog.setColor(readRGB());
fog.setMode(readByte());
if (fog.getMode() == Fog.EXPONENTIAL) fog.setDensity(readFloat());
else {
fog.setNearDistance(readFloat());
fog.setFarDistance(readFloat());
}
objs.addElement(fog);
} else if (objectType == 9) {
// System.out.println("Group");
Group group = new Group();
loadGroup(group);
objs.addElement(group);
} else if (objectType == 10) {
// System.out.println("Image2D");
Image2D image = null;
loadObject3D(new Group()); // dummy
int format = readByte();
boolean isMutable = readBoolean();
int width = readInt();
int height = readInt();
if (!isMutable) {
// Read palette
int paletteSize = readInt();
byte[] palette = null;
if (paletteSize > 0) {
palette = new byte[paletteSize];
dis.readFully(palette);
}
// Read pixels
int pixelSize = readInt();
byte[] pixel = new byte[pixelSize];
dis.readFully(pixel);
// Create image
if (palette != null) image = new Image2D(format, width, height, pixel, palette);
else image = new Image2D(format, width, height, pixel);
} else image = new Image2D(format, width, height);
dis.reset();
loadObject3D(image);
objs.addElement(image);
} else if (objectType == 19) {
System.out.println("Loader: KeyframeSequence not implemented.");
/*
Byte interpolation;
Byte repeatMode;
Byte encoding;
UInt32 duration;
UInt32 validRangeFirst;
UInt32 validRangeLast;
UInt32 componentCount;
UInt32 keyframeCount;
IF encoding == 0
FOR each key frame...
UInt32 time;
Float32[componentCount] vectorValue;
END
ELSE IF encoding == 1
Float32[componentCount] vectorBias;
Float32[componentCount] vectorScale;
FOR each key frame...
UInt32 time;
Byte[componentCount] vectorValue;
END
ELSE IF encoding == 2
Float32[componentCount] vectorBias;
Float32[componentCount] vectorScale;
FOR each key frame...
UInt32 time;
UInt16[componentCount] vectorValue;
END
END
*/
objs.addElement(new Group()); // dummy
} else if (objectType == 12) {
// System.out.println("Light");
Light light = new Light();
loadNode(light);
float constant = readFloat();
float linear = readFloat();
float quadratic = readFloat();
light.setAttenuation(constant, linear, quadratic);
light.setColor(readRGB());
light.setMode(readByte());
light.setIntensity(readFloat());
light.setSpotAngle(readFloat());
light.setSpotExponent(readFloat());
objs.addElement(light);
} else if (objectType == 13) {
// System.out.println("Material");
Material material = new Material();
loadObject3D(material);
material.setColor(Material.AMBIENT, readRGB());
material.setColor(Material.DIFFUSE, readRGBA());
material.setColor(Material.EMISSIVE, readRGB());
material.setColor(Material.SPECULAR, readRGB());
material.setShininess(readFloat());
material.setVertexColorTrackingEnable(readBoolean());
objs.addElement(material);
} else if (objectType == 14) {
// System.out.println("Mesh");
loadNode(new Group()); // dummy
VertexBuffer vertices = (VertexBuffer) getObject(readInt());
int submeshCount = readInt();
IndexBuffer[] submeshes = new IndexBuffer[submeshCount];
Appearance[] appearances = new Appearance[submeshCount];
for (int i = 0; i < submeshCount; ++i) {
submeshes[i] = (IndexBuffer) getObject(readInt());
appearances[i] = (Appearance) getObject(readInt());
}
Mesh mesh = new Mesh(vertices, submeshes, appearances);
dis.reset();
loadNode(mesh);
objs.addElement(mesh);
} else if (objectType == 15) {
System.out.println("Loader: MorphingMesh not implemented.");
/*
UInt32 morphTargetCount;
FOR each target buffer...
ObjectIndex morphTarget;
Float32 initialWeight;
END
*/
objs.addElement(new Group()); // dummy
} else if (objectType == 8) {
// System.out.println("PolygonMode");
PolygonMode polygonMode = new PolygonMode();
loadObject3D(polygonMode);
polygonMode.setCulling(readByte());
polygonMode.setShading(readByte());
polygonMode.setWinding(readByte());
polygonMode.setTwoSidedLightingEnable(readBoolean());
polygonMode.setLocalCameraLightingEnable(readBoolean());
polygonMode.setPerspectiveCorrectionEnable(readBoolean());
objs.addElement(polygonMode);
} else if (objectType == 16) {
System.out.println("Loader: SkinnedMesh not implemented.");
/*
ObjectIndex skeleton;
UInt32 transformReferenceCount;
FOR each bone reference...
ObjectIndex transformNode;
UInt32 firstVertex;
UInt32 vertexCount;
Int32 weight;
END
*/
objs.addElement(new Group()); // dummy
} else if (objectType == 18) {
System.out.println("Loader: Sprite not implemented.");
/*
ObjectIndex image;
ObjectIndex appearance;
Boolean isScaled;
Int32 cropX;
Int32 cropY;
Int32 cropWidth;
Int32 cropHeight;
*/
objs.addElement(new Group()); // dummy
} else if (objectType == 17) {
// System.out.println("Texture2D");
loadTransformable(new Group()); // dummy
Texture2D texture = new Texture2D((Image2D) getObject(readInt()));
texture.setBlendColor(readRGB());
texture.setBlending(readByte());
int wrapS = readByte();
int wrapT = readByte();
texture.setWrapping(wrapS, wrapT);
int levelFilter = readByte();
int imageFilter = readByte();
texture.setFiltering(levelFilter, imageFilter);
dis.reset();
loadTransformable(texture);
objs.addElement(texture);
} else if (objectType == 11) {
// System.out.println("TriangleStripArray");
loadObject3D(new Group()); // dummy
int encoding = readByte();
int firstIndex = 0;
int[] indices = null;
if (encoding == 0) firstIndex = readInt();
else if (encoding == 1) firstIndex = readByte();
else if (encoding == 2) firstIndex = readShort();
else if (encoding == 128) {
int numIndices = readInt();
indices = new int[numIndices];
for (int i = 0; i < numIndices; ++i) indices[i] = readInt();
} else if (encoding == 129) {
int numIndices = readInt();
indices = new int[numIndices];
for (int i = 0; i < numIndices; ++i) indices[i] = readByte();
} else if (encoding == 130) {
int numIndices = readInt();
indices = new int[numIndices];
for (int i = 0; i < numIndices; ++i) indices[i] = readShort();
}
int numStripLengths = readInt();
int[] stripLengths = new int[numStripLengths];
for (int i = 0; i < numStripLengths; ++i) stripLengths[i] = readInt();
dis.reset();
TriangleStripArray triStrip = null;
if (indices == null) triStrip = new TriangleStripArray(firstIndex, stripLengths);
else triStrip = new TriangleStripArray(indices, stripLengths);
loadObject3D(triStrip);
objs.addElement(triStrip);
} else if (objectType == 20) {
// System.out.println("VertexArray");
loadObject3D(new Group()); // dummy
int componentSize = readByte();
int componentCount = readByte();
int encoding = readByte();
int vertexCount = readShort();
VertexArray vertices = new VertexArray(vertexCount, componentCount, componentSize);
if (componentSize == 1) {
byte[] values = new byte[componentCount * vertexCount];
if (encoding == 0) dis.readFully(values);
else {
byte last = 0;
for (int i = 0; i < vertexCount * componentCount; ++i) {
last += readByte();
values[i] = last;
}
}
vertices.set(0, vertexCount, values);
} else {
short last = 0;
short[] values = new short[componentCount * vertexCount];
for (int i = 0; i < componentCount * vertexCount; ++i) {
if (encoding == 0) values[i] = (short) readShort();
else {
last += (short) readShort();
values[i] = last;
}
}
vertices.set(0, vertexCount, values);
}
dis.reset();
loadObject3D(vertices);
objs.addElement(vertices);
} else if (objectType == 21) {
// System.out.println("VertexBuffer");
VertexBuffer vertices = new VertexBuffer();
loadObject3D(vertices);
vertices.setDefaultColor(readRGBA());
VertexArray positions = (VertexArray) getObject(readInt());
float[] bias = new float[3];
bias[0] = readFloat();
bias[1] = readFloat();
bias[2] = readFloat();
float scale = readFloat();
vertices.setPositions(positions, scale, bias);
vertices.setNormals((VertexArray) getObject(readInt()));
vertices.setColors((VertexArray) getObject(readInt()));
int texCoordArrayCount = readInt();
for (int i = 0; i < texCoordArrayCount; ++i) {
VertexArray texcoords = (VertexArray) getObject(readInt());
bias[0] = readFloat();
bias[1] = readFloat();
bias[2] = readFloat();
scale = readFloat();
vertices.setTexCoords(i, texcoords, scale, bias);
}
objs.addElement(vertices);
} else if (objectType == 22) {
// System.out.println("World");
World world = new World();
loadGroup(world);
world.setActiveCamera((Camera) getObject(readInt()));
world.setBackground((Background) getObject(readInt()));
objs.addElement(world);
} else {
System.out.println("Loader: unsupported objectType " + objectType + ".");
}
dis.reset();
dis.skipBytes(length);
}
} catch (Exception e) {
System.out.println("Exception: " + e.getMessage());
e.printStackTrace();
}
dis = old;
return null;
}
/**
* Merges all geometries in the collection into the output mesh. Does not take into account
* materials.
*
* @param geometries
* @param outMesh
*/
private void mergeGeometries(Mesh outMesh, List<Geometry> geometries) {
int[] compsForBuf = new int[VertexBuffer.Type.values().length];
VertexBuffer.Format[] formatForBuf = new VertexBuffer.Format[compsForBuf.length];
int totalVerts = 0;
int totalTris = 0;
int totalLodLevels = 0;
int maxWeights = -1;
Mesh.Mode mode = null;
for (Geometry geom : geometries) {
totalVerts += geom.getVertexCount();
totalTris += geom.getTriangleCount();
totalLodLevels = Math.min(totalLodLevels, geom.getMesh().getNumLodLevels());
if (maxVertCount < geom.getVertexCount()) {
maxVertCount = geom.getVertexCount();
}
Mesh.Mode listMode;
int components;
switch (geom.getMesh().getMode()) {
case Points:
listMode = Mesh.Mode.Points;
components = 1;
break;
case LineLoop:
case LineStrip:
case Lines:
listMode = Mesh.Mode.Lines;
components = 2;
break;
case TriangleFan:
case TriangleStrip:
case Triangles:
listMode = Mesh.Mode.Triangles;
components = 3;
break;
default:
throw new UnsupportedOperationException();
}
for (VertexBuffer vb : geom.getMesh().getBufferList().getArray()) {
compsForBuf[vb.getBufferType().ordinal()] = vb.getNumComponents();
formatForBuf[vb.getBufferType().ordinal()] = vb.getFormat();
}
maxWeights = Math.max(maxWeights, geom.getMesh().getMaxNumWeights());
if (mode != null && mode != listMode) {
throw new UnsupportedOperationException(
"Cannot combine different" + " primitive types: " + mode + " != " + listMode);
}
mode = listMode;
compsForBuf[VertexBuffer.Type.Index.ordinal()] = components;
}
outMesh.setMaxNumWeights(maxWeights);
outMesh.setMode(mode);
if (totalVerts >= 65536) {
// make sure we create an UnsignedInt buffer so
// we can fit all of the meshes
formatForBuf[VertexBuffer.Type.Index.ordinal()] = VertexBuffer.Format.UnsignedInt;
} else {
formatForBuf[VertexBuffer.Type.Index.ordinal()] = VertexBuffer.Format.UnsignedShort;
}
// generate output buffers based on retrieved info
for (int i = 0; i < compsForBuf.length; i++) {
if (compsForBuf[i] == 0) {
continue;
}
Buffer data;
if (i == VertexBuffer.Type.Index.ordinal()) {
data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalTris);
} else {
data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalVerts);
}
VertexBuffer vb = new VertexBuffer(VertexBuffer.Type.values()[i]);
vb.setupData(VertexBuffer.Usage.Dynamic, compsForBuf[i], formatForBuf[i], data);
outMesh.setBuffer(vb);
}
int globalVertIndex = 0;
int globalTriIndex = 0;
for (Geometry geom : geometries) {
Mesh inMesh = geom.getMesh();
if (!isBatch(geom)) {
geom.batch(this, globalVertIndex);
}
int geomVertCount = inMesh.getVertexCount();
int geomTriCount = inMesh.getTriangleCount();
for (int bufType = 0; bufType < compsForBuf.length; bufType++) {
VertexBuffer inBuf = inMesh.getBuffer(VertexBuffer.Type.values()[bufType]);
VertexBuffer outBuf = outMesh.getBuffer(VertexBuffer.Type.values()[bufType]);
if (outBuf == null) {
continue;
}
if (VertexBuffer.Type.Index.ordinal() == bufType) {
int components = compsForBuf[bufType];
IndexBuffer inIdx = inMesh.getIndicesAsList();
IndexBuffer outIdx = outMesh.getIndexBuffer();
for (int tri = 0; tri < geomTriCount; tri++) {
for (int comp = 0; comp < components; comp++) {
int idx = inIdx.get(tri * components + comp) + globalVertIndex;
outIdx.put((globalTriIndex + tri) * components + comp, idx);
}
}
} else if (VertexBuffer.Type.Position.ordinal() == bufType) {
FloatBuffer inPos = (FloatBuffer) inBuf.getData();
FloatBuffer outPos = (FloatBuffer) outBuf.getData();
doCopyBuffer(inPos, globalVertIndex, outPos, 3);
} else if (VertexBuffer.Type.Normal.ordinal() == bufType
|| VertexBuffer.Type.Tangent.ordinal() == bufType) {
FloatBuffer inPos = (FloatBuffer) inBuf.getData();
FloatBuffer outPos = (FloatBuffer) outBuf.getData();
doCopyBuffer(inPos, globalVertIndex, outPos, compsForBuf[bufType]);
if (VertexBuffer.Type.Tangent.ordinal() == bufType) {
useTangents = true;
}
} else {
inBuf.copyElements(0, outBuf, globalVertIndex, geomVertCount);
// for (int vert = 0; vert < geomVertCount; vert++) {
// int curGlobalVertIndex = globalVertIndex + vert;
// inBuf.copyElement(vert, outBuf, curGlobalVertIndex);
// }
}
}
globalVertIndex += geomVertCount;
globalTriIndex += geomTriCount;
}
}
protected void updateSubBatch(Geometry bg) {
Batch batch = batchesByGeom.get(bg);
if (batch != null) {
Mesh mesh = batch.geometry.getMesh();
Mesh origMesh = bg.getMesh();
VertexBuffer pvb = mesh.getBuffer(VertexBuffer.Type.Position);
FloatBuffer posBuf = (FloatBuffer) pvb.getData();
VertexBuffer nvb = mesh.getBuffer(VertexBuffer.Type.Normal);
FloatBuffer normBuf = (FloatBuffer) nvb.getData();
VertexBuffer opvb = origMesh.getBuffer(VertexBuffer.Type.Position);
FloatBuffer oposBuf = (FloatBuffer) opvb.getData();
VertexBuffer onvb = origMesh.getBuffer(VertexBuffer.Type.Normal);
FloatBuffer onormBuf = (FloatBuffer) onvb.getData();
Matrix4f transformMat = getTransformMatrix(bg);
if (mesh.getBuffer(VertexBuffer.Type.Tangent) != null) {
VertexBuffer tvb = mesh.getBuffer(VertexBuffer.Type.Tangent);
FloatBuffer tanBuf = (FloatBuffer) tvb.getData();
VertexBuffer otvb = origMesh.getBuffer(VertexBuffer.Type.Tangent);
FloatBuffer otanBuf = (FloatBuffer) otvb.getData();
doTransformsTangents(
oposBuf,
onormBuf,
otanBuf,
posBuf,
normBuf,
tanBuf,
bg.startIndex,
bg.startIndex + bg.getVertexCount(),
transformMat);
tvb.updateData(tanBuf);
} else {
doTransforms(
oposBuf,
onormBuf,
posBuf,
normBuf,
bg.startIndex,
bg.startIndex + bg.getVertexCount(),
transformMat);
}
pvb.updateData(posBuf);
nvb.updateData(normBuf);
batch.needMeshUpdate = true;
}
}
/**
* Specific method for skinning with tangents to avoid cluttering the classic skinning calculation
* with null checks that would slow down the process even if tangents don't have to be computed.
* Also the iteration has additional indexes since tangent has 4 components instead of 3 for pos
* and norm
*
* @param maxWeightsPerVert maximum number of weights per vertex
* @param mesh the mesh
* @param offsetMatrices the offsetMaytrices to apply
* @param tb the tangent vertexBuffer
*/
private void applySkinningTangents(Mesh mesh, Matrix4f[] offsetMatrices, VertexBuffer tb) {
int maxWeightsPerVert = mesh.getMaxNumWeights();
if (maxWeightsPerVert <= 0) {
throw new IllegalStateException("Max weights per vert is incorrectly set!");
}
int fourMinusMaxWeights = 4 - maxWeightsPerVert;
// NOTE: This code assumes the vertex buffer is in bind pose
// resetToBind() has been called this frame
VertexBuffer vb = mesh.getBuffer(Type.Position);
FloatBuffer fvb = (FloatBuffer) vb.getData();
fvb.rewind();
VertexBuffer nb = mesh.getBuffer(Type.Normal);
FloatBuffer fnb = (FloatBuffer) nb.getData();
fnb.rewind();
FloatBuffer ftb = (FloatBuffer) tb.getData();
ftb.rewind();
// get boneIndexes and weights for mesh
ByteBuffer ib = (ByteBuffer) mesh.getBuffer(Type.BoneIndex).getData();
FloatBuffer wb = (FloatBuffer) mesh.getBuffer(Type.BoneWeight).getData();
ib.rewind();
wb.rewind();
float[] weights = wb.array();
byte[] indices = ib.array();
int idxWeights = 0;
TempVars vars = TempVars.get();
float[] posBuf = vars.skinPositions;
float[] normBuf = vars.skinNormals;
float[] tanBuf = vars.skinTangents;
int iterations = (int) FastMath.ceil(fvb.capacity() / ((float) posBuf.length));
int bufLength = 0;
int tanLength = 0;
for (int i = iterations - 1; i >= 0; i--) {
// read next set of positions and normals from native buffer
bufLength = Math.min(posBuf.length, fvb.remaining());
tanLength = Math.min(tanBuf.length, ftb.remaining());
fvb.get(posBuf, 0, bufLength);
fnb.get(normBuf, 0, bufLength);
ftb.get(tanBuf, 0, tanLength);
int verts = bufLength / 3;
int idxPositions = 0;
// tangents has their own index because of the 4 components
int idxTangents = 0;
// iterate vertices and apply skinning transform for each effecting bone
for (int vert = verts - 1; vert >= 0; vert--) {
float nmx = normBuf[idxPositions];
float vtx = posBuf[idxPositions++];
float nmy = normBuf[idxPositions];
float vty = posBuf[idxPositions++];
float nmz = normBuf[idxPositions];
float vtz = posBuf[idxPositions++];
float tnx = tanBuf[idxTangents++];
float tny = tanBuf[idxTangents++];
float tnz = tanBuf[idxTangents++];
// skipping the 4th component of the tangent since it doesn't have to be transformed
idxTangents++;
float rx = 0, ry = 0, rz = 0, rnx = 0, rny = 0, rnz = 0, rtx = 0, rty = 0, rtz = 0;
for (int w = maxWeightsPerVert - 1; w >= 0; w--) {
float weight = weights[idxWeights];
Matrix4f mat = offsetMatrices[indices[idxWeights++]];
rx += (mat.m00 * vtx + mat.m01 * vty + mat.m02 * vtz + mat.m03) * weight;
ry += (mat.m10 * vtx + mat.m11 * vty + mat.m12 * vtz + mat.m13) * weight;
rz += (mat.m20 * vtx + mat.m21 * vty + mat.m22 * vtz + mat.m23) * weight;
rnx += (nmx * mat.m00 + nmy * mat.m01 + nmz * mat.m02) * weight;
rny += (nmx * mat.m10 + nmy * mat.m11 + nmz * mat.m12) * weight;
rnz += (nmx * mat.m20 + nmy * mat.m21 + nmz * mat.m22) * weight;
rtx += (tnx * mat.m00 + tny * mat.m01 + tnz * mat.m02) * weight;
rty += (tnx * mat.m10 + tny * mat.m11 + tnz * mat.m12) * weight;
rtz += (tnx * mat.m20 + tny * mat.m21 + tnz * mat.m22) * weight;
}
idxWeights += fourMinusMaxWeights;
idxPositions -= 3;
normBuf[idxPositions] = rnx;
posBuf[idxPositions++] = rx;
normBuf[idxPositions] = rny;
posBuf[idxPositions++] = ry;
normBuf[idxPositions] = rnz;
posBuf[idxPositions++] = rz;
idxTangents -= 4;
tanBuf[idxTangents++] = rtx;
tanBuf[idxTangents++] = rty;
tanBuf[idxTangents++] = rtz;
// once again skipping the 4th component of the tangent
idxTangents++;
}
fvb.position(fvb.position() - bufLength);
fvb.put(posBuf, 0, bufLength);
fnb.position(fnb.position() - bufLength);
fnb.put(normBuf, 0, bufLength);
ftb.position(ftb.position() - tanLength);
ftb.put(tanBuf, 0, tanLength);
}
vars.release();
vb.updateData(fvb);
nb.updateData(fnb);
tb.updateData(ftb);
}
void resetToBind() {
for (Mesh mesh : targets) {
if (isMeshAnimated(mesh)) {
FloatBuffer bwBuff = (FloatBuffer) mesh.getBuffer(Type.BoneWeight).getData();
ByteBuffer biBuff = (ByteBuffer) mesh.getBuffer(Type.BoneIndex).getData();
if (!biBuff.hasArray() || !bwBuff.hasArray()) {
mesh.prepareForAnim(true); // prepare for software animation
}
VertexBuffer bindPos = mesh.getBuffer(Type.BindPosePosition);
VertexBuffer bindNorm = mesh.getBuffer(Type.BindPoseNormal);
VertexBuffer pos = mesh.getBuffer(Type.Position);
VertexBuffer norm = mesh.getBuffer(Type.Normal);
FloatBuffer pb = (FloatBuffer) pos.getData();
FloatBuffer nb = (FloatBuffer) norm.getData();
FloatBuffer bpb = (FloatBuffer) bindPos.getData();
FloatBuffer bnb = (FloatBuffer) bindNorm.getData();
pb.clear();
nb.clear();
bpb.clear();
bnb.clear();
// reseting bind tangents if there is a bind tangent buffer
VertexBuffer bindTangents = mesh.getBuffer(Type.BindPoseTangent);
if (bindTangents != null) {
VertexBuffer tangents = mesh.getBuffer(Type.Tangent);
FloatBuffer tb = (FloatBuffer) tangents.getData();
FloatBuffer btb = (FloatBuffer) bindTangents.getData();
tb.clear();
btb.clear();
tb.put(btb).clear();
}
pb.put(bpb).clear();
nb.put(bnb).clear();
}
}
}
