public static TriangleData processTriangle(int[] index, Vector3f[] v, Vector2f[] t) {
Vector3f edge1 = new Vector3f();
Vector3f edge2 = new Vector3f();
Vector2f edge1uv = new Vector2f();
Vector2f edge2uv = new Vector2f();
Vector3f tangent = new Vector3f();
Vector3f binormal = new Vector3f();
Vector3f normal = new Vector3f();
t[1].subtract(t[0], edge1uv);
t[2].subtract(t[0], edge2uv);
float det = edge1uv.x * edge2uv.y - edge1uv.y * edge2uv.x;
boolean normalize = false;
if (Math.abs(det) < ZERO_TOLERANCE) {
// log.log(Level.WARNING, "Colinear uv coordinates for triangle " + "[{0}, {1}, {2}]; tex0 =
// [{3}, {4}], " + "tex1 = [{5}, {6}], tex2 = [{7}, {8}]",
// new Object[] { index[0], index[1], index[2], t[0].x, t[0].y, t[1].x, t[1].y, t[2].x,
// t[2].y });
det = 1;
normalize = true;
}
v[1].subtract(v[0], edge1);
v[2].subtract(v[0], edge2);
tangent.set(edge1);
tangent.normalizeLocal();
binormal.set(edge2);
binormal.normalizeLocal();
if (Math.abs(Math.abs(tangent.dot(binormal)) - 1) < ZERO_TOLERANCE) {
// log.log(Level.WARNING, "Vertices are on the same line " + "for triangle [{0}, {1},
// {2}].", new Object[] { index[0], index[1], index[2] });
}
float factor = 1 / det;
tangent.x = (edge2uv.y * edge1.x - edge1uv.y * edge2.x) * factor;
tangent.y = (edge2uv.y * edge1.y - edge1uv.y * edge2.y) * factor;
tangent.z = (edge2uv.y * edge1.z - edge1uv.y * edge2.z) * factor;
if (normalize) {
tangent.normalizeLocal();
}
binormal.x = (edge1uv.x * edge2.x - edge2uv.x * edge1.x) * factor;
binormal.y = (edge1uv.x * edge2.y - edge2uv.x * edge1.y) * factor;
binormal.z = (edge1uv.x * edge2.z - edge2uv.x * edge1.z) * factor;
if (normalize) {
binormal.normalizeLocal();
}
tangent.cross(binormal, normal);
normal.normalizeLocal();
return new TriangleData(tangent, binormal, normal);
}
public EffectCenter(Simulator sim) {
this.sim = sim;
AssetManager assetManager = sim.getAssetManager();
WeatherSettings weatherSettings =
Simulator.getDrivingTask().getScenarioLoader().getWeatherSettings();
snowingPercentage =
Math.max(
weatherSettings.getSnowingPercentage(),
-1); // use -1 to suppress construction of SnowParticleEmitter
rainingPercentage =
Math.max(
weatherSettings.getRainingPercentage(),
-1); // use -1 to suppress construction of RainParticleEmitter
fogPercentage =
Math.max(
weatherSettings.getFogPercentage(), -1); // use -1 to suppress construction of FogFilter
isSnowing = (snowingPercentage >= 0);
isRaining = (rainingPercentage >= 0);
isFog = (fogPercentage >= 0);
isBloom = !Simulator.oculusRiftAttached; // switch off bloom filter when Oculus Rift is used
isShadow = true;
if (isSnowing) {
// init snow
snowParticleEmitter = new SnowParticleEmitter(assetManager, snowingPercentage);
sim.getSceneNode().attachChild(snowParticleEmitter);
}
if (isRaining) {
// init rain
rainParticleEmitter = new RainParticleEmitter(assetManager, rainingPercentage);
sim.getSceneNode().attachChild(rainParticleEmitter);
}
if (isFog || isBloom) {
for (ViewPort viewPort : CameraFactory.getViewPortList()) {
FilterPostProcessor processor = new FilterPostProcessor(assetManager);
int numSamples = sim.getContext().getSettings().getSamples();
if (numSamples > 0) processor.setNumSamples(numSamples);
if (isFog) {
FogFilter fogFilter = new FogFilter();
fogFilter.setFogColor(new ColorRGBA(0.9f, 0.9f, 0.9f, 1.0f));
fogFilter.setFogDistance(155);
fogFilter.setFogDensity(2.0f * (fogPercentage / 100f));
fogFilterList.add(fogFilter);
processor.addFilter(fogFilter);
}
if (isBloom) {
// ensure any object is set to glow, e.g. car chassis:
// chassis.getMaterial().setColor("GlowColor", ColorRGBA.Orange);
BloomFilter bloom = new BloomFilter(GlowMode.Objects);
processor.addFilter(bloom);
}
viewPort.addProcessor(processor);
}
}
if (isShadow) { // TODO
DirectionalLight sun = new DirectionalLight();
Vector3f sunLightDirection = new Vector3f(-0.2f, -0.9f, 0.2f); // TODO get from DT files
sun.setDirection(sunLightDirection.normalizeLocal());
ArrayList<ViewPort> viewPortList = CameraFactory.getViewPortList();
if (sim.getNumberOfScreens() > 1) {
int shadowMapSize = 4096;
if (viewPortList.size() > 1) shadowMapSize = 1024;
for (ViewPort viewPort : viewPortList) {
DirectionalLightShadowRenderer dlsr =
new DirectionalLightShadowRenderer(assetManager, shadowMapSize, 1);
dlsr.setLight(sun);
dlsr.setEdgeFilteringMode(EdgeFilteringMode.PCFPOISSON);
viewPort.addProcessor(dlsr);
}
shadowMapSize = 1024;
DirectionalLightShadowRenderer dlsrBack =
new DirectionalLightShadowRenderer(assetManager, shadowMapSize, 1);
dlsrBack.setLight(sun);
CameraFactory.getBackViewPort().addProcessor(dlsrBack);
DirectionalLightShadowRenderer dlsrLeft =
new DirectionalLightShadowRenderer(assetManager, shadowMapSize, 1);
dlsrLeft.setLight(sun);
CameraFactory.getLeftBackViewPort().addProcessor(dlsrLeft);
DirectionalLightShadowRenderer dlsrRight =
new DirectionalLightShadowRenderer(assetManager, shadowMapSize, 1);
dlsrRight.setLight(sun);
CameraFactory.getRightBackViewPort().addProcessor(dlsrRight);
} else {
// does not work with more than one screen
for (ViewPort viewPort : viewPortList) {
DirectionalLightShadowFilter dlsf =
new DirectionalLightShadowFilter(assetManager, 1024, 3);
dlsf.setLight(sun);
dlsf.setLambda(1f);
dlsf.setShadowIntensity(0.3f);
dlsf.setEdgeFilteringMode(EdgeFilteringMode.PCFPOISSON);
dlsf.setEnabled(true);
FilterPostProcessor fpp = new FilterPostProcessor(assetManager);
fpp.addFilter(dlsf);
viewPort.addProcessor(fpp);
}
}
}
}
private Vector3f getAimDirection() {
Vector2f mouse = inputManager.getCursorPosition();
Vector3f playerPos = player.getLocalTranslation();
Vector3f dif = new Vector3f(mouse.x - playerPos.x, mouse.y - playerPos.y, 0);
return dif.normalizeLocal();
}
private static Mesh genTangentLines(Mesh mesh, float scale) {
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer normalBuffer = (FloatBuffer) mesh.getBuffer(Type.Normal).getData();
FloatBuffer tangentBuffer = (FloatBuffer) mesh.getBuffer(Type.Tangent).getData();
FloatBuffer binormalBuffer = null;
if (mesh.getBuffer(Type.Binormal) != null) {
binormalBuffer = (FloatBuffer) mesh.getBuffer(Type.Binormal).getData();
}
ColorRGBA originColor = ColorRGBA.White;
ColorRGBA tangentColor = ColorRGBA.Red;
ColorRGBA binormalColor = ColorRGBA.Green;
ColorRGBA normalColor = ColorRGBA.Blue;
Mesh lineMesh = new Mesh();
lineMesh.setMode(Mesh.Mode.Lines);
Vector3f origin = new Vector3f();
Vector3f point = new Vector3f();
Vector3f tangent = new Vector3f();
Vector3f normal = new Vector3f();
IntBuffer lineIndex = BufferUtils.createIntBuffer(vertexBuffer.limit() / 3 * 6);
FloatBuffer lineVertex = BufferUtils.createFloatBuffer(vertexBuffer.limit() * 4);
FloatBuffer lineColor = BufferUtils.createFloatBuffer(vertexBuffer.limit() / 3 * 4 * 4);
boolean hasParity = mesh.getBuffer(Type.Tangent).getNumComponents() == 4;
float tangentW = 1;
for (int i = 0; i < vertexBuffer.limit() / 3; i++) {
populateFromBuffer(origin, vertexBuffer, i);
populateFromBuffer(normal, normalBuffer, i);
if (hasParity) {
tangent.x = tangentBuffer.get(i * 4);
tangent.y = tangentBuffer.get(i * 4 + 1);
tangent.z = tangentBuffer.get(i * 4 + 2);
tangentW = tangentBuffer.get(i * 4 + 3);
} else {
populateFromBuffer(tangent, tangentBuffer, i);
}
int index = i * 4;
int id = i * 6;
lineIndex.put(id, index);
lineIndex.put(id + 1, index + 1);
lineIndex.put(id + 2, index);
lineIndex.put(id + 3, index + 2);
lineIndex.put(id + 4, index);
lineIndex.put(id + 5, index + 3);
setInBuffer(origin, lineVertex, index);
setInBuffer(originColor, lineColor, index);
point.set(tangent);
point.multLocal(scale);
point.addLocal(origin);
setInBuffer(point, lineVertex, index + 1);
setInBuffer(tangentColor, lineColor, index + 1);
// wvBinormal = cross(wvNormal, wvTangent) * -inTangent.w
if (binormalBuffer == null) {
normal.cross(tangent, point);
point.multLocal(-tangentW);
point.normalizeLocal();
} else {
populateFromBuffer(point, binormalBuffer, i);
}
point.multLocal(scale);
point.addLocal(origin);
setInBuffer(point, lineVertex, index + 2);
setInBuffer(binormalColor, lineColor, index + 2);
point.set(normal);
point.multLocal(scale);
point.addLocal(origin);
setInBuffer(point, lineVertex, index + 3);
setInBuffer(normalColor, lineColor, index + 3);
}
lineMesh.setBuffer(Type.Index, 1, lineIndex);
lineMesh.setBuffer(Type.Position, 3, lineVertex);
lineMesh.setBuffer(Type.Color, 4, lineColor);
lineMesh.setStatic();
// lineMesh.setInterleaved();
return lineMesh;
}
private static void processTriangleData(
Mesh mesh, List<VertexData> vertices, boolean approxTangent, boolean splitMirrored) {
ArrayList<VertexInfo> vertexMap = linkVertices(mesh, splitMirrored);
FloatBuffer tangents = BufferUtils.createFloatBuffer(vertices.size() * 4);
ColorRGBA[] cols = null;
if (debug) {
cols = new ColorRGBA[vertices.size()];
}
Vector3f tangent = new Vector3f();
Vector3f binormal = new Vector3f();
// Vector3f normal = new Vector3f();
Vector3f givenNormal = new Vector3f();
Vector3f tangentUnit = new Vector3f();
Vector3f binormalUnit = new Vector3f();
for (int k = 0; k < vertexMap.size(); k++) {
float wCoord = -1;
VertexInfo vertexInfo = vertexMap.get(k);
givenNormal.set(vertexInfo.normal);
givenNormal.normalizeLocal();
TriangleData firstTriangle = vertices.get(vertexInfo.indices.get(0)).triangles.get(0);
// check tangent and binormal consistency
tangent.set(firstTriangle.tangent);
tangent.normalizeLocal();
binormal.set(firstTriangle.binormal);
binormal.normalizeLocal();
for (int i : vertexInfo.indices) {
ArrayList<TriangleData> triangles = vertices.get(i).triangles;
for (int j = 0; j < triangles.size(); j++) {
TriangleData triangleData = triangles.get(j);
tangentUnit.set(triangleData.tangent);
tangentUnit.normalizeLocal();
if (tangent.dot(tangentUnit) < toleranceDot) {
// log.log(Level.WARNING,
// "Angle between tangents exceeds tolerance "
// + "for vertex {0}.", i);
break;
}
if (!approxTangent) {
binormalUnit.set(triangleData.binormal);
binormalUnit.normalizeLocal();
if (binormal.dot(binormalUnit) < toleranceDot) {
// log.log(Level.WARNING,
// "Angle between binormals exceeds tolerance "
// + "for vertex {0}.", i);
break;
}
}
}
}
// find average tangent
tangent.set(0, 0, 0);
binormal.set(0, 0, 0);
int triangleCount = 0;
for (int i : vertexInfo.indices) {
ArrayList<TriangleData> triangles = vertices.get(i).triangles;
triangleCount += triangles.size();
if (debug) {
cols[i] = ColorRGBA.White;
}
for (int j = 0; j < triangles.size(); j++) {
TriangleData triangleData = triangles.get(j);
tangent.addLocal(triangleData.tangent);
binormal.addLocal(triangleData.binormal);
}
}
int blameVertex = vertexInfo.indices.get(0);
if (tangent.length() < ZERO_TOLERANCE) {
log.log(Level.WARNING, "Shared tangent is zero for vertex {0}.", blameVertex);
// attempt to fix from binormal
if (binormal.length() >= ZERO_TOLERANCE) {
binormal.cross(givenNormal, tangent);
tangent.normalizeLocal();
} // if all fails use the tangent from the first triangle
else {
tangent.set(firstTriangle.tangent);
}
} else {
tangent.divideLocal(triangleCount);
}
tangentUnit.set(tangent);
tangentUnit.normalizeLocal();
if (Math.abs(Math.abs(tangentUnit.dot(givenNormal)) - 1) < ZERO_TOLERANCE) {
log.log(Level.WARNING, "Normal and tangent are parallel for vertex {0}.", blameVertex);
}
if (!approxTangent) {
if (binormal.length() < ZERO_TOLERANCE) {
log.log(Level.WARNING, "Shared binormal is zero for vertex {0}.", blameVertex);
// attempt to fix from tangent
if (tangent.length() >= ZERO_TOLERANCE) {
givenNormal.cross(tangent, binormal);
binormal.normalizeLocal();
} // if all fails use the binormal from the first triangle
else {
binormal.set(firstTriangle.binormal);
}
} else {
binormal.divideLocal(triangleCount);
}
binormalUnit.set(binormal);
binormalUnit.normalizeLocal();
if (Math.abs(Math.abs(binormalUnit.dot(givenNormal)) - 1) < ZERO_TOLERANCE) {
log.log(Level.WARNING, "Normal and binormal are parallel for vertex {0}.", blameVertex);
}
if (Math.abs(Math.abs(binormalUnit.dot(tangentUnit)) - 1) < ZERO_TOLERANCE) {
log.log(Level.WARNING, "Tangent and binormal are parallel for vertex {0}.", blameVertex);
}
}
Vector3f finalTangent = new Vector3f();
Vector3f tmp = new Vector3f();
for (int i : vertexInfo.indices) {
if (approxTangent) {
// Gram-Schmidt orthogonalize
finalTangent
.set(tangent)
.subtractLocal(tmp.set(givenNormal).multLocal(givenNormal.dot(tangent)));
finalTangent.normalizeLocal();
wCoord = tmp.set(givenNormal).crossLocal(tangent).dot(binormal) < 0f ? -1f : 1f;
tangents.put((i * 4), finalTangent.x);
tangents.put((i * 4) + 1, finalTangent.y);
tangents.put((i * 4) + 2, finalTangent.z);
tangents.put((i * 4) + 3, wCoord);
} else {
tangents.put((i * 4), tangent.x);
tangents.put((i * 4) + 1, tangent.y);
tangents.put((i * 4) + 2, tangent.z);
tangents.put((i * 4) + 3, wCoord);
// setInBuffer(binormal, binormals, i);
}
}
}
tangents.limit(tangents.capacity());
// If the model already had a tangent buffer, replace it with the regenerated one
mesh.clearBuffer(Type.Tangent);
mesh.setBuffer(Type.Tangent, 4, tangents);
if (mesh.isAnimated()) {
mesh.clearBuffer(Type.BindPoseNormal);
mesh.clearBuffer(Type.BindPosePosition);
mesh.clearBuffer(Type.BindPoseTangent);
mesh.generateBindPose(true);
}
if (debug) {
writeColorBuffer(vertices, cols, mesh);
}
mesh.updateBound();
mesh.updateCounts();
}
