Sphere GLight::effectSphere(float cutoff) const {
if (position.w == 0) {
// Directional light
return Sphere(Vector3::zero(), finf());
} else {
// Avoid divide by zero
cutoff = max(cutoff, 0.00001f);
float maxIntensity = max(color.r, max(color.g, color.b));
float radius = finf();
if (attenuation[2] != 0) {
// Solve I / attenuation.dot(1, r, r^2) < cutoff for r
//
// a[0] + a[1] r + a[2] r^2 > I/cutoff
//
float a = attenuation[2];
float b = attenuation[1];
float c = attenuation[0] - maxIntensity / cutoff;
float discrim = square(b) - 4 * a * c;
if (discrim >= 0) {
discrim = sqrt(discrim);
float r1 = (-b + discrim) / (2 * a);
float r2 = (-b - discrim) / (2 * a);
if (r1 < 0) {
if (r2 > 0) {
radius = r2;
}
} else if (r2 > 0) {
radius = min(r1, r2);
} else {
radius = r1;
}
}
} else if (attenuation[1] != 0) {
// Solve I / attenuation.dot(1, r) < cutoff for r
//
// r * a[1] + a[0] = I / cutoff
// r = (I / cutoff - a[0]) / a[1]
float radius = (maxIntensity / cutoff - attenuation[0]) / attenuation[1];
radius = max(radius, 0.0f);
}
return Sphere(position.xyz(), radius);
}
}
bool ArticulatedViewer::onEvent(const GEvent& e, App* app) {
if ((e.type == GEventType::MOUSE_BUTTON_DOWN) && (e.button.button == 0) && ! app->userInput->keyDown(GKey::LCTRL)) {
// Intersect all tri lists with the ray from the camera
const Ray& ray = app->activeCamera()->worldRay(e.button.x, e.button.y,
app->renderDevice->viewport());
m_selectedPart = NULL;
m_selectedMesh = NULL;
m_selectedTriangleIndex = -1;
Model::HitInfo hitInfo;
float distance = finf();
const bool hit = m_model->intersect(ray, m_offset, ArticulatedModel::defaultPose(), distance, hitInfo);
if (hit) {
// shared_ptr<ArticulatedModel> model = dynamic_pointer_cast<ArticulatedModel>(hitInfo.model);
// alwaysAssertM(notNull(model), "Not a model!");
m_selectedMesh = m_model->mesh(hitInfo.meshID);
m_selectedTriangleIndex = hitInfo.primitiveIndex;
}
if (notNull(m_selectedMesh)) {
m_selectedPart = m_selectedMesh->logicalPart;
}
return hit;
} else if ((e.type == GEventType::KEY_DOWN) && (e.key.keysym.sym == 'r')) {
onInit(m_filename);
return true;
}
return false;
}
Vector2 GFont::appendToCharVertexArrayWordWrap
(Array<CPUCharVertex>& cpuCharArray,
Array<int>& indexArray,
RenderDevice* renderDevice,
float maxWidth,
const String& s,
const Vector2& pos2D,
float size,
const Color4& color,
const Color4& border,
XAlign xalign,
YAlign yalign,
Spacing spacing) const {
if (maxWidth == finf()) {
return appendToCharVertexArray(cpuCharArray, indexArray, renderDevice, s, pos2D, size, color, border, xalign, yalign, spacing);
}
Vector2 bounds = Vector2::zero();
Point2 p = pos2D;
String rest = s;
String first = "";
while (! rest.empty()) {
wordWrapCut(maxWidth, rest, first, size, spacing);
Vector2 extent = appendToCharVertexArray(cpuCharArray, indexArray, renderDevice, first, p, size, color, border, xalign, yalign, spacing);
bounds.x = max(bounds.x, extent.x);
bounds.y += extent.y;
p.y += iCeil(extent.y * 0.8f);
}
return bounds;
}
void RayTracer::traceOnePixel(int x, int y, int threadID) {
//used for constructing viewport
Vector2 tmp(m_settings.width, m_settings.height);
Ray primaryRay;
// If one ray per pixel: (kinda debugging mode with blue color for places with no surfel hit
if (m_settings.raysPerPixel == 1){
//Get the primary ray from the pixel x,y
primaryRay = m_camera->worldRay(x + 0.5f, y + 0.5f, Rect2D(tmp));
//Get the first surfel hit.
//Can't call L_i unfortunately because we want the blue background for debugging
const shared_ptr<Surfel>& s = RayTracer::castRay(primaryRay, finf(), 0);
//If there is a surfel hit, get the direct illumination value and apply to the pixel
if (s){
//Call L_scatteredDirect to get direct illumination. Invert primaryRay to get the direction for incident light
m_image->set(Point2int32(x,y), L_o(s, -primaryRay.direction(), m_settings.recursiveBounces, *(m_rnd[threadID])));
} else{
//Set the pixels with no surfel hit. Include this line so we could make it a specific color for debug purposes.
m_image->set(Point2int32(x,y), Color3(0,0,1));
}
} else {
Radiance3 L(0,0,0);
//If more than one ray, randomly generate required number of rays within the pixel
for (int i = 0; i < m_settings.raysPerPixel; ++i){
primaryRay = m_camera->worldRay(x + m_rnd[threadID]->uniform(), y + m_rnd[threadID]->uniform(), Rect2D(tmp));
L += L_i(primaryRay.origin(), primaryRay.direction(), m_settings.recursiveBounces, *(m_rnd[threadID]));
}
m_image->set(Point2int32(x,y), L/m_settings.raysPerPixel);
}
}
Matrix4 Matrix4::perspectiveProjection(
float left,
float right,
float bottom,
float top,
float nearval,
float farval,
float upDirection) {
float x, y, a, b, c, d;
x = (2.0f*nearval) / (right-left);
y = (2.0f*nearval) / (top-bottom);
a = (right+left) / (right-left);
b = (top+bottom) / (top-bottom);
if (farval >= finf()) {
// Infinite view frustum
c = -1.0f;
d = -2.0f * nearval;
} else {
c = -(farval+nearval) / (farval-nearval);
d = -(2.0f*farval*nearval) / (farval-nearval);
}
debugAssertM(abs(upDirection) == 1.0f, "upDirection must be -1 or +1");
y *= upDirection;
b *= upDirection;
return Matrix4(
x, 0, a, 0,
0, y, b, 0,
0, 0, c, d,
0, 0, -1, 0);
}
float Camera::worldToScreenSpaceArea(float area, float z, const Rect2D& viewport) const {
(void)viewport;
if (z >= 0) {
return finf();
}
return area * (float)square(-nearPlaneZ() / z);
}
shared_ptr<Entity> Scene::intersectEyeRay(const shared_ptr<Camera>& camera, const Vector2& pixel, const Rect2D& viewport, const Vector2int16 guardBandThickness, bool hitMarkers, const Array<shared_ptr<Entity> >& exclude, Model::HitInfo& selectionInfo) const {
const Ray& ray = camera->worldRay(pixel.x + guardBandThickness.x, pixel.y + guardBandThickness.y, Rect2D(Vector2(viewport.width() + 2 * guardBandThickness.x, viewport.height() + 2 * guardBandThickness.y)));
// clear old selection info
selectionInfo.clear();
float distance = finf();
return intersect(ray, distance, hitMarkers, exclude, selectionInfo);
}
Radiance3 RayTracer::L_i(const Point3 P, const Vector3& wi, int bouncesLeft, Random& rnd) const{
//Get the surfel hit and call L_o to compute radiance at the surfel
shared_ptr<Surfel> surfel = castRay(G3D::Ray(P,wi).bumpedRay(0.0001), finf(), 0);
if (surfel){
return L_o(surfel, -wi, bouncesLeft, rnd);
} else{
//No surfel, return black
return Radiance3(0,0,0);
}
}
void App::onInit() {
GApp::onInit();
renderDevice->setSwapBuffersAutomatically(true);
logPrintf("App::onInit()\n");
createDeveloperHUD();
showRenderingStats = false;
developerWindow->cameraControlWindow->setVisible(false);
developerWindow->setVisible(false);
developerWindow->videoRecordDialog->setCaptureGui(false);
m_debugCamera->filmSettings().setBloomStrength(0.20f);
m_debugCamera->filmSettings().setBloomRadiusFraction(0.017f);
m_debugCamera->filmSettings().setAntialiasingEnabled(true);
m_debugCamera->filmSettings().setCelluloidToneCurve();
if (! filename.empty()) {
window()->setCaption(filenameBaseExt(filename) + " - G3D Viewer");
}
lighting = shared_ptr<LightingEnvironment>(new LightingEnvironment());
lighting->lightArray.clear();
// The spot light is designed to just barely fit the 3D models. Note that it has no attenuation
lighting->lightArray.append(Light::spotTarget("Light", Point3(40, 120, 80), Point3::zero(), 10 * units::degrees(), Power3(50.0f), 1, 0, 0, true, 8192));
lighting->lightArray.last()->shadowMap()->setBias(0.1f);
Texture::Encoding e;
e.readMultiplyFirst = Color4(Color3(0.5f));
e.format = ImageFormat::RGB32F();
lighting->environmentMapArray.append(Texture::fromFile(System::findDataFile("uffizi/uffizi-*.exr"), e, Texture::DIM_CUBE_MAP));
lighting->ambientOcclusionSettings.numSamples = 24;
lighting->ambientOcclusionSettings.radius = 0.75f * units::meters();
lighting->ambientOcclusionSettings.intensity = 2.0f;
lighting->ambientOcclusionSettings.bias = 0.06f * units::meters();
lighting->ambientOcclusionSettings.useDepthPeelBuffer = true;
m_debugCamera->setFarPlaneZ(-finf());
m_debugCamera->setNearPlaneZ(-0.05f);
// Don't clip to the near plane
glDisable(GL_DEPTH_CLAMP);
colorClear = Color3::white() * 0.9f;
//modelController = ThirdPersonManipulator::create();
m_gbufferSpecification.encoding[GBuffer::Field::CS_POSITION_CHANGE].format = NULL;
gbuffer()->setSpecification(m_gbufferSpecification);
setViewer(filename);
developerWindow->sceneEditorWindow->setVisible(false);
logPrintf("Done App::onInit()\n");
}
QString MainWindowTask::getFileName(QString fileName)
{
QFileInfo finf(fileName);
QFileDialog dialog(this,trUtf8("Открыть файл"),curDir, "("+finf.fileName()+")");
dialog.setAcceptMode(QFileDialog::AcceptOpen);
if(!dialog.exec())return "";
QFileInfo fi(dialog.selectedFiles().first());
return dialog.selectedFiles().first();
};
bool PhysicsFrameSplineEditor::hitsSpline(const Ray& r) {
int j = m_spline.control.size();
for (int i = 0; i < j; ++i) {
const CFrame& c = m_spline.control[i];
if(r.intersectionTime(Sphere(c.translation, CONTROL_POINT_RADIUS), true) != finf()) {
setSelectedControlPointIndex(i);
return true;
}
}
return false;
}
float Ray::intersectionTime(const class Box& box) const {
Vector3 dummy;
float time = CollisionDetection::collisionTimeForMovingPointFixedBox(
m_origin, m_direction, box, dummy);
if ((time == finf()) && (box.contains(m_origin))) {
return 0.0f;
} else {
return time;
}
}
float Ray::intersectionTime(const class AABox& box) const {
Vector3 dummy;
bool inside;
float time = CollisionDetection::collisionTimeForMovingPointFixedAABox(
m_origin, m_direction, box, dummy, inside);
if ((time == finf()) && inside) {
return 0.0f;
} else {
return time;
}
}
bool Sphere::culledBy(
const class Plane* plane,
int numPlanes,
int& cullingPlane,
const uint32 _inMask,
uint32& childMask) const {
if (radius == finf()) {
// No plane can cull the infinite box
return false;
}
uint32 inMask = _inMask;
assert(numPlanes < 31);
childMask = 0;
// See if there is one plane for which all of the
// vertices are in the negative half space.
for (int p = 0; p < numPlanes; p++) {
// Only test planes that are not masked
if ((inMask & 1) != 0) {
bool culledLow = ! plane[p].halfSpaceContainsFinite(center + plane[p].normal() * radius);
bool culledHigh = ! plane[p].halfSpaceContainsFinite(center - plane[p].normal() * radius);
if (culledLow) {
// Plane p culled the sphere
cullingPlane = p;
// The caller should not recurse into the children,
// since the parent is culled. If they do recurse,
// make them only test against this one plane, which
// will immediately cull the volume.
childMask = 1 << p;
return true;
} else if (culledHigh) {
// The bounding volume straddled the plane; we have
// to keep testing against this plane
childMask |= (1 << p);
}
}
// Move on to the next bit.
inMask = inMask >> 1;
}
// None of the planes could cull this box
cullingPlane = -1;
return false;
}
void RayTracer::traceOnePhoton(int ignoreX, int ignoreY, int threadID) {
ThreadData& threadData(m_threadData[threadID]);
Photon photon;
emitPhoton(*threadData.rnd, photon);
const float MIN_POWER_THRESHOLD = 0.001f / m_settings.photon.numEmitted;
float probabilityHint = 1.0;
for (int numBounces = 0;
(numBounces < m_settings.photon.numBounces) &&
(photon.power.sum() > MIN_POWER_THRESHOLD);
++numBounces) {
// Find the first surface
float distance = finf();
const shared_ptr<Surfel>& surfel = castRay(photon.position, -photon.wi, distance, false);
if (isNull(surfel)) {
return;
}
// Store the photon (if this is not the first bounce and it is
// not a purely specular surface)
if ((numBounces > 0) && surfel->nonZeroFiniteScattering()) {
photon.effectRadius = photonEffectRadius(probabilityHint);
// Update photon position. Store it slightly before it hit the surface
// to improve filtering later.
photon.position = surfel->position + photon.wi * min(photon.effectRadius, distance) / 4;
// Store a copy of this photon
m_photonList[threadID].append(photon);
}
// Scatter
Color3 weight;
Vector3 wo;
float probabilityScale;
surfel->scatter(PathDirection::SOURCE_TO_EYE, photon.wi, true, *threadData.rnd, weight, wo, probabilityScale);
probabilityHint *= probabilityScale;
// Update photon power and direction
photon.power *= weight;
photon.wi = -wo;
photon.position = bump(surfel, wo);
}
}
Module::Module( const char *name, WCValSList<String> & enabled,
WCValSList<String> & disabled )
//------------------------------------------------------------
{
WCPtrOrderedVector<ComponentFile> components;
FileInfo finf( name );
int i;
MsgRetType ret;
_dataFile = new ElfFile( name, false );
DwarfFileMerger merger( name, enabled, disabled );
if( !merger.upToDate() ) {
if( !finf.exists() ) {
merger.doMerge();
} else {
if( enabled.entries() != 0 ) {
ret = WMessageDialog::messagef( topWindow,
MsgQuestion, MsgYesNo, "Source Browser",
"Database %s is not consistent with module files.\n"
"Merge the database now?", name );
if( ret == MsgRetYes ) {
merger.doMerge();
}
}
}
}
_dataFile->initSections();
_dataFile->getEnabledComponents( &components );
for( i = 0; i < components.entries(); i += 1 ) {
_enabledFiles.add( new WFileName( components[i]->name ) );
}
components.clear();
_dataFile->getDisabledComponents( &components );
for( i = 0; i < components.entries(); i += 1 ) {
_disabledFiles.add( new WFileName( components[i]->name ) );
}
checkSourceTime();
_dbgInfo = DRDbgInit( this, _dataFile->getDRSizes(), false );
DRSetDebug( _dbgInfo );
}
void Matrix4::getPerspectiveProjectionParameters(
float& left,
float& right,
float& bottom,
float& top,
float& nearval,
float& farval,
float upDirection) const {
assert(abs(upDirection) == 1.0f, "upDirection must be -1 or +1");
float x = elt[0][0];
float y = elt[1][1] * upDirection;
float a = elt[0][2];
float b = elt[1][2] * upDirection;
float c = elt[2][2];
float d = elt[2][3];
assert(elt[3][2] == -1, "Not a projection matrix");
assert(elt[0][1] == 0, "Not a projection matrix");
assert(elt[0][3] == 0, "Not a projection matrix");
assert(elt[1][3] == 0, "Not a projection matrix");
assert(elt[3][3] == 0, "Not a projection matrix");
assert(elt[1][0] == 0, "Not a projection matrix");
assert(elt[2][0] == 0, "Not a projection matrix");
assert(elt[2][1] == 0, "Not a projection matrix");
assert(elt[3][0] == 0, "Not a projection matrix");
assert(elt[3][1] == 0, "Not a projection matrix");
if (c == -1) {
farval = finf();
nearval = -d / 2.0f;
} else {
nearval = d * ((c - 1.0f) / (c + 1.0f) - 1.0f) / (-2.0f * (c - 1.0f) / (c + 1.0f));
farval = nearval * ((c - 1.0f) / (c + 1.0f));
}
left = (a - 1.0f) * nearval / x;
right = 2.0f * nearval / x + left;
bottom = (b - 1.0f) * nearval / y;
top = 2.0f * nearval / y + bottom;
}
void Matrix4::getPerspectiveProjectionParameters(
double& left,
double& right,
double& bottom,
double& top,
double& nearval,
double& farval,
float upDirection) const {
debugAssertM(abs(upDirection) == 1.0f, "upDirection must be -1 or +1");
double x = elt[0][0];
double y = elt[1][1] * upDirection;
double a = elt[0][2];
double b = elt[1][2] * upDirection;
double c = elt[2][2];
double d = elt[2][3];
// Verify that this really is a projection matrix
debugAssertM(elt[3][2] == -1, "Not a projection matrix");
debugAssertM(elt[0][1] == 0, "Not a projection matrix");
debugAssertM(elt[0][3] == 0, "Not a projection matrix");
debugAssertM(elt[1][3] == 0, "Not a projection matrix");
debugAssertM(elt[3][3] == 0, "Not a projection matrix");
debugAssertM(elt[1][0] == 0, "Not a projection matrix");
debugAssertM(elt[2][0] == 0, "Not a projection matrix");
debugAssertM(elt[2][1] == 0, "Not a projection matrix");
debugAssertM(elt[3][0] == 0, "Not a projection matrix");
debugAssertM(elt[3][1] == 0, "Not a projection matrix");
if (c == -1) {
farval = finf();
nearval = -d / 2.0;
} else {
nearval = d * ((c - 1.0) / (c + 1.0) - 1.0) / (-2.0 * (c - 1.0) / (c + 1.0));
farval = nearval * ((c - 1.0) / (c + 1.0));
}
left = (a - 1.0) * nearval / x;
right = 2.0 * nearval / x + left;
bottom = (b - 1.0) * nearval / y;
top = 2.0 * nearval / y + bottom;
}
float movingDiskFixedLineSegmentCollisionTime(Point2 center, float radius, Vector2 velocity, const LineSegment2D& segment, Point2& collisionLocation) {
// Ridiculously implemented in terms of existing 3D functionality
Point3 X;
const float t = CollisionDetection::collisionTimeForMovingSphereFixedTriangle
(Sphere(Point3(center, 0.0f), radius),
Vector3(velocity, 0.0f),
Triangle(Point3(segment.point(0), +1.0f),
Point3(segment.point(0), -1.0f),
Point3(segment.point(1), 0.0f)),
X);
if (t < finf()) {
collisionLocation = X.xy();
}
return t;
}
Radiance3 RayTracer::L_in(const Point3& X, const Vector3& wi, ThreadData& threadData, int bouncesLeft) const {
if (bouncesLeft == 0) {
// We aren't allowed to trace farther, so estimate from the
// environment map
return BACKGROUND_RADIANCE;
}
// Surface hit by the primary ray (at X)
float maxDistance = finf();
shared_ptr<Surfel> surfel(castRay(X, wi, maxDistance));
if (notNull(surfel)) {
// Hit something
return L_out(surfel, -wi, threadData, bouncesLeft);
} else {
// Hit background
return BACKGROUND_RADIANCE;
}
}
void DirReader::recurseDir(const QString &path, int curDepth)
{
QDir dir(path);
dir.setSorting(flags);
dir.setFilter(QDir::AllDirs|QDir::Files);
const QStringList files = dir.entryList();
foreach (QString f, files)
{
if (f == "." || f == "..")
continue;
QFileInfo finf(dir, f);
fileHandler(finf);
if (finf.isDir()) // && (finf.absoluteFilePath() != path))
{
if (curDepth < maxDirDepth)
{
recurseDir(finf.absoluteFilePath(), curDepth+1);
}
}
}
}
bool App::onEvent(const GEvent& event) {
if (GApp::onEvent(event)) {
return true;
}
if (event.type == GEventType::VIDEO_RESIZE) {
// Example GUI dynamic layout code. Resize the debugWindow to fill
// the screen horizontally.
debugWindow->setRect(Rect2D::xywh(0, 0, window()->width(), debugWindow->rect().height()));
}
if (! m_preventEntitySelect && (event.type == GEventType::MOUSE_BUTTON_DOWN) && (event.button.button == 0)) {
// Left click: select by casting a ray through the center of the pixel
const Ray& ray = defaultCamera.worldRay(event.button.x + 0.5f, event.button.y + 0.5f, renderDevice->viewport());
float distance = finf();
selectEntity(m_scene->intersect(ray, distance));
}
if (! m_preventEntitySelect && (event.type == GEventType::GUI_ACTION) && (event.gui.control == m_entityList)) {
// User clicked on dropdown list
selectEntity(m_scene->entity(m_entityList->selectedValue().text()));
}
// If you need to track individual UI events, manage them here.
// Return true if you want to prevent other parts of the system
// from observing this specific event.
//
// For example,
// if ((event.type == GEventType::GUI_ACTION) && (event.gui.control == m_button)) { ... return true;}
// if ((event.type == GEventType::KEY_DOWN) && (event.key.keysym.sym == GKey::TAB)) { ... return true; }
return false;
}
void ElfFile::addComponentFile( const char * fileName, bool enable )
//------------------------------------------------------------------
{
ComponentFile * comp;
bool found = false;
FileInfo finf( fileName );
// NYI -- use the WCVector find!
for( int i = 0; i < _components->entries(); i += 1 ) {
if( strcmp( (*_components)[i]->name, fileName ) == 0 ) {
comp = (*_components)[ i ];
found = true;
}
}
if( !found ) {
comp = ComponentFile::createComponent( finf.st_mtime(), enable, fileName );
}
if( !found ) {
strcpy( comp->name, fileName );
_components->append( comp );
}
}
void MeshAlg::computeBounds(
const Array<Vector3>& vertexArray,
AABox& box,
Sphere& sphere) {
Vector3 xmin, xmax, ymin, ymax, zmin, zmax;
// FIRST PASS: find 6 minima/maxima points
xmin.x = ymin.y = zmin.z = finf();
xmax.x = ymax.y = zmax.z = -finf();
for (int v = 0; v < vertexArray.size(); ++v) {
const Vector3& vertex = vertexArray[v];
if (vertex.x < xmin.x) {
xmin = vertex;
}
if (vertex.x > xmax.x) {
xmax = vertex;
}
if (vertex.y < ymin.y) {
ymin = vertex;
}
if (vertex.y > ymax.y) {
ymax = vertex;
}
if (vertex.z < zmin.z) {
zmin = vertex;
}
if (vertex.z > zmax.z) {
zmax = vertex;
}
}
// Set points dia1 & dia2 to the maximally separated pair
Vector3 dia1 = xmin;
Vector3 dia2 = xmax;
{
// Set xspan = distance between the 2 points xmin & xmax (squared)
double xspan = (xmax - xmin).squaredMagnitude();
// Same for y & z spans
double yspan = (ymax - ymin).squaredMagnitude();
double zspan = (zmax - zmin).squaredMagnitude();
double maxspan = xspan;
if (yspan > maxspan) {
maxspan = yspan;
dia1 = ymin;
dia2 = ymax;
}
if (zspan > maxspan) {
maxspan = zspan;
dia1 = zmin;
dia2 = zmax;
}
}
// dia1, dia2 is a diameter of initial sphere
// calc initial center
Vector3 center = (dia1 + dia2) / 2.0;
// calculate initial radius^2 and radius
Vector3 d = dia2 - sphere.center;
double radSq = d.squaredMagnitude();
double rad = sqrt(radSq);
// SECOND PASS: increment current sphere
double old_to_p, old_to_new;
for (int v = 0; v < vertexArray.size(); ++v) {
const Vector3& vertex = vertexArray[v];
d = vertex - center;
double old_to_p_sq = d.squaredMagnitude();
// do r^2 test first
if (old_to_p_sq > radSq) {
// this point is outside of current sphere
old_to_p = sqrt(old_to_p_sq);
// calc radius of new sphere
rad = (rad + old_to_p) / 2.0;
// for next r^2 compare
radSq = rad * rad;
old_to_new = old_to_p - rad;
// calc center of new sphere
center = (rad * center + old_to_new * vertex) / old_to_p;
}
}
const Vector3 min(xmin.x, ymin.y, zmin.z);
const Vector3 max(xmax.x, ymax.y, zmax.z);
box = AABox(min, max);
const float boxRadSq = (max - min).squaredMagnitude() * 0.25f;
if (boxRadSq >= radSq){
if (isNaN(center.x) || ! isFinite(rad)) {
sphere = Sphere(Vector3::zero(), finf());
} else {
sphere = Sphere(center, rad);
}
} else {
sphere = Sphere((max + min) * 0.5f, sqrt(boxRadSq));
}
}
void ParticleSystemModel::init() {
// Extract the fade in and out times.
m_hasCoverageFadeTime = false;
m_hasExpireTime = false;
for (const shared_ptr<Emitter>& emitter : m_emitterArray) {
const float fi = emitter->specification().coverageFadeInTime;
const float fo = emitter->specification().coverageFadeOutTime;
m_hasCoverageFadeTime = m_hasCoverageFadeTime || (fi > 0) || (fo > 0);
m_coverageFadeTime.append(std::make_pair(fi, fo));
m_hasExpireTime = m_hasExpireTime || (emitter->specification().particleLifetimeMean < finf());
}
}
void RayTracer::tracePhotons(Photon p, int bouncesLeft){
//Only trace the photon if more than one bounce
if (bouncesLeft > 0){
//Get the intersected surface
shared_ptr<UniversalSurfel> surfel = dynamic_pointer_cast<UniversalSurfel>(castRay(G3D::Ray(p.origin,p.direction).bumpedRay(0.0001), finf(), 0));
if (surfel){
p.origin = surfel->position;
//Don't store for mirror surfaces
if (!(surfel->glossyReflectionCoefficient.nonZero() && (surfel->glossyReflectionExponent == inf()))){
Vector3 D = p.origin - m_camera->frame().translation;
//if (D.length() < 10){
if(castRay(G3D::Ray(m_camera->frame().translation,D).bumpedRay(0.0001), D.length(), 1)) {
photons.insert(p);
}
//}
}
shared_ptr<Random> rnd = m_rnd[0];
Vector3 wo;
Color3 weight;
//scatter the photon using the method provided by G3D. Used to be a lot of lines which got deleted
surfel->scatter(PathDirection::SOURCE_TO_EYE, -p.direction, true, *rnd, weight, wo);
//If it scatters, continue tracing
if (wo.magnitude() > 0){
p.direction = wo;
p.power *= weight;
tracePhotons(p, bouncesLeft - 1);
}
rnd.reset();
}
}
}
void Browse::positionEditor( char * fileName, ulong line, uint col,
int hiliteLen )
//-----------------------------------------------------------------
{
FileInfo finf( fileName );
if( finf.exists() ) {
if( optManager()->isEditorDLL() ) {
if( _editorDLL->isInitialized() ) {
if( _editorDLL->EDITConnect() ) {
_editorDLL->EDITFile( fileName, "" );
_editorDLL->EDITLocate( line, col, hiliteLen );
_editorDLL->EDITShowWindow( EDIT_SHOWNORMAL );
} else {
errMessage( "Unable to connect to editor" );
}
} else {
ASSERTION( 0 /* uh-oh -- the menu item should be grayed */ );
}
} else {
WString cmd( optManager()->getEditorName() );
WString editorParms( optManager()->getEditorParms() );
cmd.concat( ' ' ); // space after editor name before parms
int parmsize = editorParms.size();
for( int i=0; i < parmsize; i++ ) {
switch( editorParms[i] ) {
case '%':
switch( editorParms[i+1] ) {
case 'f': // file name
cmd.concat( fileName );
break;
case 'r': // row to go to
cmd.concatf( "%ld", line );
break;
case 'c': // column to go to
cmd.concatf( "%d", col );
break;
case 'l': // length of hilight
cmd.concatf( "%d", hiliteLen );
break;
#if 0
case 'h': // helpid
cmd.concat( x.stringAt( 5 ) );
break;
case 'e': // error message
cmd.concat( x.stringAt( 6 ) );
break;
#endif
case '%': // a real '%'
cmd.concat( '%' );
break;
default:
// ignore the '%' and the character
break;
}
i+=2; // skip % and following char
default:
cmd.concat( editorParms[i] );
break;
}
}
WSystemService::sysExec( cmd, WWinStateShowNormal, 0 );
}
} else {
errMessage( "File \"%s\" not found", fileName );
}
}
void ShadowMap::computeMatrices
(const shared_ptr<Light>& light,
AABox sceneBounds,
CFrame& lightFrame,
Projection& lightProjection,
Matrix4& lightProjectionMatrix,
float lightProjX,
float lightProjY,
float lightProjNearMin,
float lightProjFarMax,
float intensityCutoff) {
if (! sceneBounds.isFinite() || sceneBounds.isEmpty()) {
// Produce some reasonable bounds
sceneBounds = AABox(Point3(-20, -20, -20), Point3(20, 20, 20));
}
lightFrame = light->frame();
if (light->type() == Light::Type::DIRECTIONAL) {
Point3 center = sceneBounds.center();
if (! center.isFinite()) {
center = Point3::zero();
}
// Move directional light away from the scene. It must be far enough to see all objects
lightFrame.translation = -lightFrame.lookVector() *
min(1e6f, max(sceneBounds.extent().length() / 2.0f, lightProjNearMin, 30.0f)) + center;
}
const CFrame& f = lightFrame;
float lightProjNear = finf();
float lightProjFar = 0.0f;
// TODO: for a spot light, only consider objects this light can see
// Find nearest and farthest corners of the scene bounding box
for (int c = 0; c < 8; ++c) {
const Vector3& v = sceneBounds.corner(c);
const float distance = -f.pointToObjectSpace(v).z;
lightProjNear = min(lightProjNear, distance);
lightProjFar = max(lightProjFar, distance);
}
// Don't let the near get too close to the source, and obey
// the specified hint.
lightProjNear = max(lightProjNearMin, lightProjNear);
// Don't bother tracking shadows past the effective radius
lightProjFar = min(light->effectSphere(intensityCutoff).radius, lightProjFar);
lightProjFar = max(lightProjNear + 0.1f, min(lightProjFarMax, lightProjFar));
debugAssert(lightProjNear < lightProjFar);
if (light->type() != Light::Type::DIRECTIONAL) {
// TODO: Square spot
// Spot light; we can set the lightProj bounds intelligently
alwaysAssertM(light->spotHalfAngle() <= halfPi(), "Spot light with shadow map and greater than 180-degree bounds");
// The cutoff is half the angle of extent (See the Red Book, page 193)
const float angle = light->spotHalfAngle();
lightProjX = tan(angle) * lightProjNear;
// Symmetric in x and y
lightProjY = lightProjX;
lightProjectionMatrix =
Matrix4::perspectiveProjection
(-lightProjX, lightProjX, -lightProjY,
lightProjY, lightProjNear, lightProjFar);
} else if (light->type() == Light::Type::DIRECTIONAL) {
// Directional light
// Construct a projection and view matrix for the camera so we can
// render the scene from the light's point of view
//
// Since we're working with a directional light,
// we want to make the center of projection for the shadow map
// be in the direction of the light but at a finite distance
// to preserve z precision.
lightProjectionMatrix =
Matrix4::orthogonalProjection
(-lightProjX, lightProjX, -lightProjY,
lightProjY, lightProjNear, lightProjFar);
} else {
// Omni light. Nothing good can happen here, but at least we
// generate something
lightProjectionMatrix =
Matrix4::perspectiveProjection
(-lightProjX, lightProjX, -lightProjY,
lightProjY, lightProjNear, lightProjFar);
}
float fov = atan2(lightProjX, lightProjNear) * 2.0f;
lightProjection.setFieldOfView(fov, FOVDirection::HORIZONTAL);
lightProjection.setNearPlaneZ(-lightProjNear);
lightProjection.setFarPlaneZ(-lightProjFar);
}
void PlayerEntity::slideMove(GameTime timeLeft) {
static const float epsilon = 0.0001f;
// Use constant velocity gravity (!)
alwaysAssertM(((PhysicsScene*)m_scene)->gravity().x == 0.0f && ((PhysicsScene*)m_scene)->gravity().z == 0.0f,
"We assume gravity points along the y axis to simplify implementation");
m_desiredOSVelocity.y = max( ((PhysicsScene*)m_scene)->gravity().y, m_desiredOSVelocity.y + ((PhysicsScene*)m_scene)->gravity().y);
// Initial velocity
Vector3 velocity = frame().vectorToWorldSpace(m_desiredOSVelocity) + ((PhysicsScene*)m_scene)->gravity();
Array<Tri> triArray;
getConservativeCollisionTris(triArray, velocity, (float)timeLeft);
// Trivial implementation that ignores collisions:
# if 0
m_frame.translation += velocity * timeLeft;
return;
# endif
// Keep simulating until we run out of time or velocity, at which point
// no further movement is possible.
# ifdef TRACE_COLLISIONS
debugPrintf("================================\n");
debugPrintf("Initial velocity = %s; position = %s\n", velocity.toString().c_str(), m_frame.translation.toString().c_str());
# endif
int iterations = 0;
while ((timeLeft > epsilon) && (velocity.length() > epsilon)) {
float stepTime = float(timeLeft);
Vector3 collisionNormal;
Point3 collisionPoint;
const bool collided =
findFirstCollision(triArray, velocity, stepTime, collisionNormal, collisionPoint);
# ifdef TRACE_COLLISIONS
debugPrintf(" stepTime = %f\n", stepTime);
# endif
// Advance to just before the collision
stepTime = max(0.0f, stepTime - epsilon * 0.5f);
m_frame.translation += velocity * stepTime;
// Early out of loop when debugging
//if (! runSimulation) { return; }
if (collided) {
# ifdef TRACE_COLLISIONS
debugPrintf(" Collision C=%s, n=%s; position after=%s)\n",
collisionPoint.toString().c_str(),
collisionNormal.toString().c_str(),
m_frame.translation.toString().c_str());
# endif
if (collisionProxy().contains(collisionPoint)) {
// Interpenetration. This is bad because the
// rest of the code assumes no interpenetration and
// uses that to rise up steps. Place the sphere
// adjacent to the triangle and eliminate all velocity
// towards the triangle.
m_frame.translation = collisionPoint + collisionNormal * (m_collisionProxySphere.radius + epsilon * 2.0f);
# ifdef TRACE_COLLISIONS
debugPrintf(" Interpenetration detected. Position after = %s\n",
m_frame.translation.toString().c_str());
# endif
}
// Constrain the velocity by subtracting the component
// into the collision normal
const Vector3& vPerp = collisionNormal * collisionNormal.dot(velocity);
const Vector3& vPar = velocity - vPerp;
# ifdef SHOW_COLLISIONS
if (collisionNormal.y < 0.95f) {
float duration = 1.0f;
debugDraw(new ArrowShape(collisionPoint, velocity), duration, Color3::green());
debugDraw(new ArrowShape(collisionPoint, vPerp), duration, Color3::yellow());
debugDraw(new ArrowShape(collisionPoint, vPar), duration, Color3::blue());
if (duration == finf()) {
// Pause so we can see the result
runSimulation = false;
}
}
# endif
velocity = vPar;
# ifdef TRACE_COLLISIONS
debugPrintf(" velocity after collision = %s\n", velocity.toString().c_str());
# endif
}
# ifdef TRACE_COLLISIONS
debugPrintf(" --------------\n");
# endif
++iterations;
timeLeft -= stepTime;
}
//screenPrintf("%d collision iterations", iterations);
}
bool imageViewer::openImage(QString &filename,QString start,bool ask,bool showMessage,bool emitSignal,bool fromCache)
{
QImage tempImage;
QFile fi(filename);
QFileInfo finf(filename);
QString cacheFileName;
jp2IO jp2;
displayMBoxEvent *stmb=0;
editorScene ed;
bool success=false;
bool cacheHit=false;
if(activeMovie)
{
activeMovie=false;
qm.stop();
}
if (filename.isEmpty()&&!ask) return false;
if(ask)
{
dirDialog dd((QWidget *)this,"Browse");
filename=dd.openFileName(start,"*");
}
if(filename.isEmpty())
{
imageFileName="";
return false;
}
if(fromCache)
{
cacheFileName=finf.absolutePath()+"/cache/"+finf.baseName()+finf.created().toString()+".png";
if(tempImage.load(cacheFileName))
{
cacheHit=true;
success=true;
orgWidth=tempImage.text("orgWidth").toInt();
orgHeight=tempImage.text("orgHeight").toInt();
}
}
if(!success)
{
if(tempImage.load(filename))
{
success=true;
}
else if(ed.load(fi))
{
success=true;
tempImage=QImage(ed.renderImage(0,0)->copy());
}
else if(jp2.check(filename))
{
tempImage=jp2.decode(filename);
if(!tempImage.isNull())
{
success=true;
}
}
}
if(!success)
{
if(showMessage)
{
stmb= new displayMBoxEvent("Image Loader",QString("Unable to load image:\n%1").arg(filename));
QApplication::postEvent( dispatcherPtr, stmb ); // Qt will delete it when done
}
validImage=false;
imageFileName="";
return false;
}
if(fromCache)
{
sourceImage=QImage();
if(!cacheHit)
{
orgWidth=tempImage.width();
orgHeight=tempImage.height();
tempImage=tempImage.scaledToWidth(120, Qt::FastTransformation);
// save cacheImage for next time
tempImage.setText("orgWidth",QString::number(orgWidth));
tempImage.setText("orgHeight",QString::number(orgHeight));
tempImage.save(cacheFileName,"PNG");
}
displayedImage=tempImage;
}
else
{
sourceImage=tempImage.convertToFormat(QImage::Format_ARGB32_Premultiplied);
orgWidth=tempImage.width();
orgHeight=tempImage.height();
displayedImage=sourceImage;
}
imageFileName=filename;
QFileInfo finfo(filename);
if (finfo.suffix().toLower()=="gif")
{
//we will try a animated gif
qm.setFileName(filename);
if(qm.isValid())
{
if(qm.frameCount()>1)
{
activeMovie=true;
setMovie(&qm);
qm.start();
displayedImage=QImage();
}
else
{
displayImage(); // we have a single image gif
}
}
}
else
{
displayImage();
}
validImage=true;
if (emitSignal) emit imageChanged();
return true;
}
