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viewer.cpp
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// ======================================================================== //
// Copyright 2022-2022 Stefan Zellmann //
// //
// Licensed under the Apache License, Version 2.0 (the "License"); //
// you may not use this file except in compliance with the License. //
// You may obtain a copy of the License at //
// //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
// Unless required by applicable law or agreed to in writing, software //
// distributed under the License is distributed on an "AS IS" BASIS, //
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
// See the License for the specific language governing permissions and //
// limitations under the License. //
// ======================================================================== //
#include <iomanip>
#include <fstream>
#include <QCheckBox>
#include <QComboBox>
#include <QGroupBox>
#include <QLabel>
#include <QPushButton>
#include <QRadioButton>
#include <QSlider>
#include "qtOWL/OWLViewer.h"
#include "qtOWL/XFEditor.h"
#include "LightInteractor.h"
#include "OWLRenderer.h"
#ifdef HEADLESS
#include "headless.h"
#endif
// #include "SAHBuilder.h"
// #include "SAHVolumeWrapper.h"
#define DUMP_FRAMES 0
static int g_clipPlaneSelected = 0;
namespace exa {
using qtOWL::Camera;
using qtOWL::SimpleCamera;
struct {
std::string scalarFileName = "";
std::string gridsFileName = "";
std::string amrCellFileName = "";
std::string exaBrickFileName = "";
std::string bigMeshFileName = "";
std::string quickClustersFileName = "";
std::string kdtreeFileName = "";
std::string majorantsFileName = "";
std::string meshFileName = "";
std::string xfFileName = "";
std::string outFileName = "Witcher3.png";
std::string fpsFileName = "fps.log";
range1f valueRange = {1e30f,-1e30f};
box2f subImage = {{1e30f,1e30f},{-1e30f,-1e30f}};
struct {
vec3f vp = vec3f(0.f);
vec3f vu = vec3f(0.f);
vec3f vi = vec3f(0.f);
float fovy = 70;
} camera;
struct {
int enabled = 0;
int show = 1;
vec3f N{0,0,1};
float d{1000.f};
} clipPlanes[CLIP_PLANES_MAX];
struct {
box3f remap_from { vec3f(0.f), vec3f(1.f) };
box3f remap_to { vec3f(0.f), vec3f(1.f) };
} xform;
int rendererType = 0;
int shadeMode = 0;
struct {
vec3f pos{0,0,0};
float intensity{ 0.f };
bool on = false;
} lights[1];
vec3i numMCs{128,128,128};
vec2i windowSize = vec2i(1024,1024);
float dt = .5f;
int spp = 1;
int heatMapEnabled = 0;
float heatMapScale = 1.f;
} cmdline;
void usage(const std::string &err)
{
if (err != "")
std::cout << OWL_TERMINAL_RED << "\nFatal error: " << err
<< OWL_TERMINAL_DEFAULT << std::endl << std::endl;
std::cout << "Usage: ./owlDVR volumeFile.raw -dims x y z -f|--format float|byte" << std::endl;
std::cout << std::endl;
exit(1);
}
struct Mat4 {
float m[16];
};
inline Mat4 lookAt(const vec3f eye, const vec3f center, const vec3f up)
{
const vec3f f = normalize(eye-center);
const vec3f s = normalize(cross(up,f));
const vec3f u = cross(f,s);
return {
s.x, u.x, f.x, 0.f,
s.y, u.y, f.y, 0.f,
s.z, u.z, f.z, 0.f,
-dot(eye,s), -dot(eye,u), -dot(eye,f), 1.f
};
}
inline Mat4 perspective(float fovy, float aspect, float znear=.001f, float zfar=1000.f)
{
#define cot(x) cos(x)/sin(x)
float f = cot(fovy*.5f);
#undef cot
return {
f/aspect, 0.f, 0.f, 0.f,
0.f, f, 0.f, 0.f,
0.f, 0.f, (zfar+znear)/(znear-zfar), -1.f,
0.f, 0.f, (2.f*zfar*znear)/(znear-zfar), 0.f
};
}
inline float intersectLinePlane(const vec3f &p1,
const vec3f &p2,
const vec3f &normal,
float offset)
{
float s = dot(normal, normalize(p2-p1));
if (s == 0.f)
return -1.f;
float t = (offset - dot(normal, p1)) / s;
if (t < 0.f || t > length(p2-p1))
return -1.f;
return t;
}
inline void intersectBoxPlane(const box3f &box,
const vec3f &normal,
float offset,
vec3f *pts,
int& isectCnt)
{
const int key[4][3] = { {0,0,0}, {1,0,1}, {1,1,0}, {0,1,1} };
vec3f corners[2] = { box.lower, box.upper };
isectCnt = 0;
for (int i=0; i<4 && isectCnt<6; ++i) {
for (int j=0; j<3 && isectCnt<6; ++j) {
// Edge to intersect with
vec3f p1((j==0) ? (corners[1-key[i][0]][0]) : corners[key[i][0]][0],
(j==1) ? (corners[1-key[i][1]][1]) : corners[key[i][1]][1],
(j==2) ? (corners[1-key[i][2]][2]) : corners[key[i][2]][2]);
vec3f p2(corners[key[i][0]][0], corners[key[i][1]][1], corners[key[i][2]][2]);
// Intersect edge with plane
float t = intersectLinePlane(p1,p2,normal,offset);
if (t >= 0.f) {
pts[isectCnt++] = p1 + normalize(p2-p1) * t;
}
}
}
}
#ifdef HEADLESS
struct Viewer : public Headless {
typedef Headless inherited;
#else
struct Viewer : public qtOWL::OWLViewer {
typedef qtOWL::OWLViewer inherited;
#endif
Q_OBJECT
public:
Viewer(OWLRenderer *renderer)
: inherited("exastitch", cmdline.windowSize)
, renderer(renderer)
{
}
/*! this function gets called whenever the viewer widget changes
camera settings */
void cameraChanged() override;
void resize(const vec2i &newSize) override;
/*! gets called whenever the viewer needs us to re-render out widget */
void render() override;
/*! draw framebuffer using OpenGL */
void draw();
/*! this gets called when the user presses a key on the keyboard ... */
void key(char key, const vec2i &where) override
{
inherited::key(key,where);
renderer->resetAccum();
switch (key) {
case '!':
std::cout << "saving screenshot to '" << cmdline.outFileName << ".png'\n";
screenShot(cmdline.outFileName+".png");
break;
case 'H':
renderer->heatMapEnabled = !renderer->heatMapEnabled;
break;
case 'l':
emit lightEdittingToggled();
break;
case '<':
renderer->heatMapScale /= 1.5f;
break;
case '>':
renderer->heatMapScale *= 1.5f;
break;
case ')':
renderer->spp++;
PRINT(renderer->spp);
break;
case '(':
renderer->spp = max(1,renderer->spp-1);
PRINT(renderer->spp);
break;
case 'T':
if (xfEditor) xfEditor->saveTo("owlDVR.xf");
break;
// case 'Y': {
// if (auto model = renderer->model->as<ExaBrickModel>()) {
// std::string baseFileName = cmdline.scalarFileName;
// std::string cmFileName = baseFileName+"_MajorantColorMap.bin";
// std::string domainsFileName = baseFileName+"_MajorantDomains.bin";
// std::vector<float> rgbaCM(xfEditor->getColorMap().size()*4);
// memcpy(rgbaCM.data(),xfEditor->getColorMap().data(),
// rgbaCM.size()*sizeof(rgbaCM[0]));
// SAHVolumeWrapper vol(model,&rgbaCM,renderer->xf.absDomain,renderer->xf.relDomain);
// volkd::KDTree kdtree(vol,&rgbaCM);
// std::vector<std::pair<box3f,float>> domains;
// while (!kdtree.nodes.empty()) {
// volkd::Node node = kdtree.nodes.top();
// kdtree.nodes.pop();
// range1f tfRange = vol.min_max(node.domain,&rgbaCM);
// std::cout << "Domain " << domains.size() << ": "
// << node.domain << ", majorant: " << tfRange.upper << '\n';
// domains.push_back({node.domain,tfRange.upper});
// }
// std::ofstream cmFile(cmFileName, std::ios::binary);
// uint64_t cmSize = rgbaCM.size();
// cmFile.write((char *)&cmSize,sizeof(cmSize));
// cmFile.write((char *)rgbaCM.data(),rgbaCM.size()*sizeof(rgbaCM[0]));
// std::ofstream domainsFile(domainsFileName, std::ios::binary);
// uint64_t numDomains = domains.size();
// domainsFile.write((char *)&numDomains,sizeof(numDomains));
// domainsFile.write((char *)domains.data(),domains.size()*sizeof(domains[0]));
// }
// break;
// }
// case 'y': {
// if (auto model = renderer->model->as<ExaBrickModel>()) {
// std::string baseFileName = cmdline.scalarFileName;
// std::string cmFileName = baseFileName+"_MajorantColorMap.bin";
// std::string domainsFileName = baseFileName+"_MajorantDomains.bin";
// std::vector<float> rgbaCM(xfEditor->getColorMap().size()*4);
// memcpy(rgbaCM.data(),xfEditor->getColorMap().data(),
// rgbaCM.size()*sizeof(rgbaCM[0]));
// std::ifstream domainsFileIN(domainsFileName, std::ios::binary);
// uint64_t numDomains = 0;
// domainsFileIN.read((char *)&numDomains,sizeof(numDomains));
// std::vector<std::pair<box3f,float>> domains(numDomains);
// domainsFileIN.read((char *)domains.data(),domains.size()*sizeof(domains[0]));
// SAHVolumeWrapper vol(model,&rgbaCM,renderer->xf.absDomain,renderer->xf.relDomain);
// std::vector<std::pair<box3f,float>> newDomains;
// for (size_t i=0; i<domains.size(); ++i) {
// range1f tfRange = vol.min_max(domains[i].first,&rgbaCM);
// std::cout << "Domain " << i << ": " << domains[i].first
// << ", majorant: " << tfRange.upper << '\n';
// newDomains.push_back({domains[i].first,tfRange.upper});
// }
// std::ofstream cmFile(cmFileName, std::ios::binary);
// uint64_t cmSize = rgbaCM.size();
// cmFile.write((char *)&cmSize,sizeof(cmSize));
// cmFile.write((char *)rgbaCM.data(),rgbaCM.size()*sizeof(rgbaCM[0]));
// std::ofstream domainsFile(domainsFileName, std::ios::binary);
// domainsFile.write((char *)&numDomains,sizeof(numDomains));
// domainsFile.write((char *)newDomains.data(),newDomains.size()*sizeof(newDomains[0]));
// }
// break;
// }
case 'P':
if (g_clipPlaneSelected >= 0 && cmdline.clipPlanes[g_clipPlaneSelected].enabled) {
const vec3f N = cmdline.clipPlanes[g_clipPlaneSelected].N;
const float d = cmdline.clipPlanes[g_clipPlaneSelected].d;
std::cout << "(suggested cmdline format, for apps that support this:) "
<< std::endl
<< " --clip-plane"
<< " " << N.x << " " << N.y << " " << N.z << " " << d
<< std::endl;
}
break;
}
}
void mouseButtonLeft(const vec2i &where, bool pressed)
{
if (subImageSelecting) {
if (!pressed && !lastSubImageWin.empty()) {
const box2f subImageUV = lastSubImageWin;
pushSubImage(subImageUV);
box2f combinedUV = computeSubImageUV();
renderer->setSubImage(combinedUV,true);
emit subImageChanged(combinedUV);
renderer->setSubImageSelection({},false); // deactivate selection
lastSubImageWin = {};
}
downPos = where;
} else if (lightInteractor.active()) {
float distToCenter = length(renderer->modelBounds.center() - camera.getFrom());
float zNear = distToCenter - length(renderer->modelBounds.span())/2.f;
float zFar = distToCenter + length(renderer->modelBounds.span())/2.f;
Mat4 view = lookAt(camera.getFrom(),
camera.getAt(),
camera.getUp());
Mat4 proj = perspective(camera.getFovyInDegrees()*M_PI/180.f,
float(fbSize.x)/fbSize.y,
zNear,zFar);
lightInteractor.update(view.m,proj.m,fbSize);
lightInteractor.mouseButtonLeft(where,pressed);
} else {
inherited::mouseButtonLeft(where,pressed);
}
}
void mouseDragLeft(const vec2i &where, const vec2i &delta)
{
if (subImageSelecting) {
const vec2i size = getWindowSize();
auto flip = [size](const vec2i P) { return vec2i{P.x,size.y-P.y-1}; };
vec2i p1 = flip(downPos), p2 = flip(where);
if (subImageSelectionContraint != SubImageSelectionContraint::Free) {
vec2i boxSize(std::abs(p2.x-p1.x),std::abs(p2.y-p1.y));
if (subImageSelectionContraint == SubImageSelectionContraint::KeepAspect) {
float aspect = getWindowSize().x/(float)getWindowSize().y;
boxSize.y = boxSize.x/aspect;
} else if (subImageSelectionContraint == SubImageSelectionContraint::Square) {
boxSize.x = std::min(boxSize.x,boxSize.y);
boxSize.y = std::min(boxSize.x,boxSize.y);
}
if (p2.x < p1.x) p2.x = p1.x-boxSize.x;
else if (p2.x > p1.x) p2.x = p1.x+boxSize.x;
if (p2.y < p1.y) p2.y = p1.y-boxSize.y;
else if (p2.y > p1.y) p2.y = p1.y+boxSize.y;
}
box2i subImageWin = {
clamp(vec2i(min(p1,p2)),vec2i(0),size),
clamp(vec2i(max(p1,p2)),vec2i(0),size)
};
const box2f subImageUV(vec2f(subImageWin.lower)/vec2f(size),
vec2f(subImageWin.upper)/vec2f(size));
renderer->setSubImageSelection(subImageUV,true);
lastSubImageWin = subImageUV;
emit subImageSelectionChanged(subImageUV);
} else if (lightInteractor.active()) {
lightInteractor.mouseDragLeft(where,delta);
} else {
inherited::mouseDragLeft(where,delta);
}
}
signals:
void subImageChanged(box2f subImageUV);
void subImageSelectionChanged(box2f subImageUV);
void lightEdittingToggled();
public slots:
void colorMapChanged(qtOWL::XFEditor *xf);
void rangeChanged(range1f r);
void opacityScaleChanged(double scale);
void lightPosChanged(owl::vec3f pos);
void scheduleScreenShot(double seconds);
void scheduleScreenShot(int frames);
public:
OWLRenderer *const renderer;
qtOWL::XFEditor *xfEditor = nullptr;
vec2i downPos { 0, 0 };
box2f lastSubImageWin;
bool subImageSelecting = false;
std::vector<box2f> subImageUndoStack;
int subImageUndoStackTop = 0;
LightInteractor lightInteractor;
double screenShotAfterSec = -1.0;
double seconds = 0.0;
int screenShotAfterFrames = -1;
int frames = 0;
enum class SubImageSelectionContraint {
KeepAspect,Square,Free,
};
SubImageSelectionContraint subImageSelectionContraint = SubImageSelectionContraint::KeepAspect;
void pushSubImage(const box2f si)
{
// Push, but if the stack and stack's top are unconsistent,
// make sure we start with a clean slate
if (subImageUndoStackTop < subImageUndoStack.size())
subImageUndoStack.resize(subImageUndoStackTop);
subImageUndoStack.push_back(si);
subImageUndoStackTop++;
}
box2f computeSubImageUV() const
{
box2f combinedUV{{0.f,0.f},{1.f,1.f}};
if (!cmdline.subImage.empty())
combinedUV = cmdline.subImage;
for (size_t i=0; i<subImageUndoStackTop; ++i) {
const box2f &si = subImageUndoStack[i];
vec2f currSize = combinedUV.size();
combinedUV.lower += si.lower*currSize;
combinedUV.upper = combinedUV.lower + (si.upper-si.lower)*currSize;
}
return combinedUV;
}
};
void Viewer::resize(const vec2i &newSize)
{
// ... tell parent to resize (also resizes the pbo in the wingdow)
inherited::resize(newSize);
renderer->resize(newSize);
renderer->resetAccum();
}
/*! this function gets called whenever the viewer widget changes
camera settings */
void Viewer::cameraChanged()
{
inherited::cameraChanged();
const SimpleCamera &camera = inherited::getCamera();
const vec3f screen_du = camera.screen.horizontal / float(inherited::getWindowSize().x);
const vec3f screen_dv = camera.screen.vertical / float(inherited::getWindowSize().y);
const vec3f screen_00 = camera.screen.lower_left;
renderer->setCamera(camera.lens.center,screen_00,screen_du,screen_dv);
renderer->resetAccum();
}
/*! gets called whenever the viewer needs us to re-render out widget */
void Viewer::render()
{
if (screenShotAfterFrames >= 1 && frames == 0 ||
screenShotAfterSec >= 0.0 && seconds == 0.0)
{
renderer->resetAccum();
}
static double t_last = getCurrentTime();
static double t_first = t_last;
renderer->render(inherited::fbPointer);
double t_now = getCurrentTime();
static double avg_t = t_now-t_last;
// if (t_last >= 0)
avg_t = 0.8*avg_t + 0.2*(t_now-t_last);
char title[1000];
sprintf(title,"%.2f FPS",(1.f/avg_t));
inherited::setTitle(title);
// setWindowTitle(title);
// glfwSetWindowTitle(this->handle,title);
#ifndef HEADLESS
if (screenShotAfterFrames >= 0) {
this->frames++;
std::cout << frames << '\r';
std::cout << std::flush;
if (this->frames >= screenShotAfterFrames) {
screenShot(cmdline.outFileName+".png");
screenShotAfterFrames = -1;
this->frames = 0;
}
}
if (screenShotAfterSec >= 0) {
this->seconds += t_now-t_last;
std::cout << seconds << '\r';
std::cout << std::flush;
if (this->seconds >= screenShotAfterSec) {
screenShot(cmdline.outFileName+".png");
screenShotAfterSec = -1.0;
this->seconds = 0.0;
}
}
#endif
t_last = t_now;
#if DUMP_FRAMES
// just dump the 10th frame, then hard-exit
static int g_frameID = 0;
if (g_frameID % 16 == 0) {
std::cout << "g_frameID: " << g_frameID << std::endl;
}
if (g_frameID++ >= 256) {
screenShot(cmdline.outFileName+".png");
}
#endif
}
/*! draw framebuffer using OpenGL */
void Viewer::draw()
{
glPushAttrib(GL_ALL_ATTRIB_BITS);
inherited::draw();
const Camera &camera = inherited::getCamera();
float distToCenter = length(renderer->modelBounds.center() - camera.getFrom());
float zNear = distToCenter - length(renderer->modelBounds.span())/2.f;
float zFar = distToCenter + length(renderer->modelBounds.span())/2.f;
Mat4 view = lookAt(camera.getFrom(),
camera.getAt(),
camera.getUp());
Mat4 proj = perspective(camera.getFovyInDegrees()*M_PI/180.f,
float(fbSize.x)/fbSize.y,
zNear,zFar);
glViewport(0, 0, fbSize.x, fbSize.y);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(view.m);
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(proj.m);
glDisable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
for (int i=0; i<CLIP_PLANES_MAX; ++i) {
if (cmdline.clipPlanes[i].enabled && cmdline.clipPlanes[i].show) {
vec3f pts[6];
int isectCnt;
intersectBoxPlane(renderer->modelBounds,
cmdline.clipPlanes[i].N,
cmdline.clipPlanes[i].d,
pts,isectCnt);
// Cyclical selection-sort
for (int ii=0; ii<isectCnt-1; ++ii)
{
int minIdx = ii;
for (int jj=ii+1; jj<isectCnt; ++jj) {
vec3f p1 = pts[jj];
vec3f p2 = pts[minIdx];
vec3f v = cross(p1-pts[0],p2-pts[0]);
if (dot(v,cmdline.clipPlanes[i].N) < 0.f)
minIdx = jj;
}
// swap
vec3f tmp = pts[ii];
pts[ii] = pts[minIdx];
pts[minIdx] = tmp;
}
glLineWidth(4);
glColor3f(1.f,1.f,1.f);
glBegin(GL_LINE_LOOP);
for (int j=0; j<isectCnt; ++j) {
glVertex3f(pts[j].x,pts[j].y,pts[j].z);
}
glEnd();
}
}
glPopAttrib();
if (lightInteractor.active())
lightInteractor.draw();
}
void Viewer::colorMapChanged(qtOWL::XFEditor *xfEditor)
{
renderer->setColorMap(xfEditor->getColorMap());
renderer->resetAccum();
}
// re-map [0,1] range from gui to actual value range
void Viewer::rangeChanged(range1f r)
{
float lo = min(r.lower,r.upper);
float hi = max(r.lower,r.upper);
renderer->setRange({lo,hi});
renderer->setRelDomain(xfEditor->getRelDomain());
renderer->resetAccum();
}
void Viewer::opacityScaleChanged(double scale)
{
renderer->setOpacityScale((float)scale);
renderer->resetAccum();
}
void Viewer::lightPosChanged(owl::vec3f pos)
{
renderer->setLightSource(0,pos,cmdline.lights[0].intensity,cmdline.lights[0].on);
std::ios_base::fmtflags f(std::cout.flags());
std::cout << std::fixed;
std::cout << "Cmdline: \"--light "
<< pos.x << ' ' << pos.y << ' ' << pos.z << ' '
<< cmdline.lights[0].intensity
<< "\"\n";
std::cout.flags(f);
}
void Viewer::scheduleScreenShot(double seconds)
{
screenShotAfterSec = seconds;
this->seconds = 0.0;
}
void Viewer::scheduleScreenShot(int frames)
{
screenShotAfterFrames = frames;
this->frames = 0;
}
extern "C" int main(int argc, char** argv)
{
std::string inFileName = "";
for (int i=1;i<argc;i++) {
const std::string arg = argv[i];
if (arg[0] != '-') {
inFileName = arg;
}
else if (arg == "-scalar" || arg == "-scalars") {
cmdline.scalarFileName = argv[++i];
}
else if (arg == "-grids" || arg == "-gridlets") {
cmdline.gridsFileName = argv[++i];
}
else if (arg == "-cells") {
cmdline.amrCellFileName = argv[++i];
}
else if (arg == "-bricks") {
cmdline.exaBrickFileName = argv[++i];
}
else if (arg == "-bm") {
cmdline.bigMeshFileName = argv[++i];
}
else if (arg == "-qc") {
cmdline.quickClustersFileName = argv[++i];
}
else if (arg == "-kdtree") {
cmdline.kdtreeFileName = argv[++i];
}
else if (arg == "-majorants") {
cmdline.majorantsFileName = argv[++i];
}
else if (arg == "-mesh") {
cmdline.meshFileName = argv[++i];
}
else if (arg == "-xf") {
cmdline.xfFileName = argv[++i];
}
else if (arg == "--range") {
cmdline.valueRange.lower = std::atof(argv[++i]);
cmdline.valueRange.upper = std::atof(argv[++i]);
}
else if (arg == "--subimg") {
cmdline.subImage.lower.x = std::atof(argv[++i]);
cmdline.subImage.lower.y = std::atof(argv[++i]);
cmdline.subImage.upper.x = std::atof(argv[++i]);
cmdline.subImage.upper.y = std::atof(argv[++i]);
}
else if (arg == "-fovy" || arg == "--fov") {
cmdline.camera.fovy = std::stof(argv[++i]);
}
else if (arg == "--camera") {
cmdline.camera.vp.x = std::stof(argv[++i]);
cmdline.camera.vp.y = std::stof(argv[++i]);
cmdline.camera.vp.z = std::stof(argv[++i]);
cmdline.camera.vi.x = std::stof(argv[++i]);
cmdline.camera.vi.y = std::stof(argv[++i]);
cmdline.camera.vi.z = std::stof(argv[++i]);
cmdline.camera.vu.x = std::stof(argv[++i]);
cmdline.camera.vu.y = std::stof(argv[++i]);
cmdline.camera.vu.z = std::stof(argv[++i]);
}
else if (arg == "-win" || arg == "--win" || arg == "--size") {
cmdline.windowSize.x = std::atoi(argv[++i]);
cmdline.windowSize.y = std::atoi(argv[++i]);
}
else if (arg == "-o") {
cmdline.outFileName = argv[++i];
}
else if (arg == "-fps") {
cmdline.fpsFileName = argv[++i];
}
else if (arg == "-spp" || arg == "--spp") {
cmdline.spp = std::stoi(argv[++i]);
}
else if (arg == "--heat-map") {
cmdline.heatMapEnabled = true;
cmdline.heatMapScale = std::stof(argv[++i]);
}
else if (arg == "-dt") {
cmdline.dt = std::stof(argv[++i]);
}
else if (arg == "--remap-from") {
cmdline.xform.remap_from.lower.x = std::stof(argv[++i]);
cmdline.xform.remap_from.lower.y = std::stof(argv[++i]);
cmdline.xform.remap_from.lower.z = std::stof(argv[++i]);
cmdline.xform.remap_from.upper.x = std::stof(argv[++i]);
cmdline.xform.remap_from.upper.y = std::stof(argv[++i]);
cmdline.xform.remap_from.upper.z = std::stof(argv[++i]);
}
else if (arg == "--remap-to") {
cmdline.xform.remap_to.lower.x = std::stof(argv[++i]);
cmdline.xform.remap_to.lower.y = std::stof(argv[++i]);
cmdline.xform.remap_to.lower.z = std::stof(argv[++i]);
cmdline.xform.remap_to.upper.x = std::stof(argv[++i]);
cmdline.xform.remap_to.upper.y = std::stof(argv[++i]);
cmdline.xform.remap_to.upper.z = std::stof(argv[++i]);
}
else if (arg == "--clip-plane") {
static int currentPlane = 0;
int P = currentPlane++;
assert(P < CLIP_PLANES_MAX);
cmdline.clipPlanes[P].enabled = true;
cmdline.clipPlanes[P].N.x = std::stof(argv[++i]);
cmdline.clipPlanes[P].N.y = std::stof(argv[++i]);
cmdline.clipPlanes[P].N.z = std::stof(argv[++i]);
cmdline.clipPlanes[P].d = std::stof(argv[++i]);
}
else if (arg == "-rt") {
cmdline.rendererType = std::atoi(argv[++i]);
}
else if (arg == "-sm") {
cmdline.shadeMode = std::atoi(argv[++i]);
}
else if (arg == "--num-mcs") {
cmdline.numMCs.x = std::atoi(argv[++i]);
cmdline.numMCs.y = std::atoi(argv[++i]);
cmdline.numMCs.z = std::atoi(argv[++i]);
}
else if (arg == "--light") {
cmdline.lights[0].pos.x = std::stof(argv[++i]);
cmdline.lights[0].pos.y = std::stof(argv[++i]);
cmdline.lights[0].pos.z = std::stof(argv[++i]);
cmdline.lights[0].intensity = std::stof(argv[++i]);
cmdline.lights[0].on = true;
}
else
usage("unknown cmdline arg '"+arg+"'");
}
#if 0
// TODO: test code for block-array c'tor
// TODO: remove when no longer needed!
// The block bounds
// see here: https://github.com/openvkl/openvkl/blob/master/openvkl/devices/cpu/volume/amr/AMRData.h#L28
// how these are defined (upper is an integer coordinate and does not include the
// extent of the rightmost cells)
std::vector<box3i> blockBounds(2);
blockBounds[0] = {
{0,0,0},{1,1,1} // thats a 2^3 box
};
blockBounds[1] = {
{1,0,0},{1,0,0}
};
// The levels, per block
std::vector<int> blockLevel(2);
blockLevel[0] = 0;
blockLevel[1] = 1;
// Finally the data, for convenience we create a 1D array here
// (that we need to keep alive!), and define the "blockData's"
// to point into that
std::vector<float> blockDataData(9);
for (int i=0; i<8; ++i) blockDataData[i] = i/float(8);
blockDataData[8] = 1.f;
// (the "blockData's" themselves)
std::vector<OWLRenderer::BlockData> blockData(2);
blockData[0].size = vec3i(2,2,2);
blockData[0].data = &blockDataData[0];
blockData[1].size = vec3i(1,1,1);
blockData[1].data = &blockDataData[8];
OWLRenderer renderer(blockBounds.data(),
blockLevel.data(),
blockData.data(),
blockBounds.size(),
cmdline.xform.remap_from,
cmdline.xform.remap_to,
cmdline.numMCs);
#else
OWLRenderer renderer(inFileName,
cmdline.gridsFileName,
cmdline.amrCellFileName,
cmdline.exaBrickFileName,
cmdline.bigMeshFileName,
cmdline.quickClustersFileName,
cmdline.meshFileName,
cmdline.scalarFileName,
cmdline.kdtreeFileName,
cmdline.majorantsFileName,
cmdline.xform.remap_from,
cmdline.xform.remap_to,
cmdline.numMCs);
#endif
const box3f modelBounds = renderer.modelBounds;
renderer.xf.colorMap = qtOWL::ColorMapLibrary().getMap(0);
renderer.setColorMap(renderer.xf.colorMap);
for (int i=0; i<CLIP_PLANES_MAX; ++i) {
renderer.setClipPlane(i,
cmdline.clipPlanes[i].enabled,
cmdline.clipPlanes[i].N,
cmdline.clipPlanes[i].d);
}
renderer.setType((OWLRenderer::Type)cmdline.rendererType);
renderer.setShadeMode(cmdline.shadeMode);
if (!cmdline.lights[0].on) {
cmdline.lights[0].pos = modelBounds.upper;
cmdline.lights[0].intensity = 60.f;
}
renderer.setLightSource(0,cmdline.lights[0].pos,cmdline.lights[0].intensity,cmdline.lights[0].on);
if (!cmdline.subImage.empty())
renderer.setSubImage(cmdline.subImage,true);
#ifndef HEADLESS
QApplication app(argc,argv);
Viewer viewer(&renderer);
viewer.enableFlyMode();
viewer.enableInspectMode(qtOWL::OWLViewer::Arcball,modelBounds);
//viewer.enableInspectMode(/* valid range of poi*/modelBounds,
// /* min distance */1e-3f,
// /* max distance */1e8f);
if (cmdline.camera.vu != vec3f(0.f)) {
viewer.setCameraOrientation(/*origin */cmdline.camera.vp,
/*lookat */cmdline.camera.vi,
/*up-vector*/cmdline.camera.vu,
/*fovy(deg)*/cmdline.camera.fovy);
} else {
viewer.setCameraOrientation(/*origin */
modelBounds.center()
+ vec3f(-.3f, .7f, +1.f) * modelBounds.span(),
/*lookat */modelBounds.center(),
/*up-vector*/vec3f(0.f, 1.f, 0.f),
/*fovy(deg)*/70.f);
}
viewer.setWorldScale(1.1f*length(modelBounds.span()));
viewer.lightInteractor.setWorldScale(length(modelBounds.span()));
viewer.lightInteractor.setPos(cmdline.lights[0].pos);
qtOWL::XFEditor *xfEditor = new qtOWL::XFEditor;
range1f valueRange = renderer.valueRange;
if (!cmdline.valueRange.is_empty())
valueRange = cmdline.valueRange;
QObject::connect(xfEditor,&qtOWL::XFEditor::colorMapChanged,
&viewer, &Viewer::colorMapChanged);
QObject::connect(xfEditor,&qtOWL::XFEditor::rangeChanged,
&viewer, &Viewer::rangeChanged);
QObject::connect(xfEditor,&qtOWL::XFEditor::opacityScaleChanged,
&viewer, &Viewer::opacityScaleChanged);
QObject::connect(&viewer.lightInteractor,&LightInteractor::lightPosChanged,
&viewer, &Viewer::lightPosChanged);
viewer.xfEditor = xfEditor;
if (cmdline.xfFileName != "")
xfEditor->loadFrom(cmdline.xfFileName);
xfEditor->setAbsDomain(valueRange);
viewer.opacityScaleChanged(xfEditor->getOpacityScale());
QMainWindow guiWindow;
QWidget *centralWidget = new QWidget;
QVBoxLayout vlayout(centralWidget);
vlayout.addWidget(xfEditor);
// ==================================================================
// Screenshot
// ==================================================================
QGroupBox *screenShotBox = new QGroupBox("Screen Shot");
vlayout.addWidget(screenShotBox);
QHBoxLayout screenShotLayout(screenShotBox);
QPushButton screenShotNowButton("Now");
screenShotLayout.addWidget(&screenShotNowButton);
QHBoxLayout screenShotFramesLayout;
QFrame line;
line.setFrameShape(QFrame::VLine);
line.setFrameShadow(QFrame::Sunken);
QLabel screenShotFramesLabel("# Frames:");
QSpinBox screenShotFramesSpinBox;
QPushButton screenShotFramesButton("Schedule...");
screenShotFramesLayout.addWidget(&line);
screenShotFramesLayout.addWidget(&screenShotFramesLabel);
screenShotFramesLayout.addWidget(&screenShotFramesSpinBox);
screenShotFramesLayout.addWidget(&screenShotFramesButton);
screenShotLayout.addLayout(&screenShotFramesLayout);
QHBoxLayout screenShotSecondsLayout;
QLabel screenShotSecondsLabel("Seconds:");
QDoubleSpinBox screenShotSecondsSpinBox;
QPushButton screenShotSecondsButton("Schedule...");
screenShotSecondsLayout.addWidget(&line);
screenShotSecondsLayout.addWidget(&screenShotSecondsLabel);
screenShotSecondsLayout.addWidget(&screenShotSecondsSpinBox);
screenShotSecondsLayout.addWidget(&screenShotSecondsButton);
screenShotLayout.addLayout(&screenShotSecondsLayout);
// ==================================================================
// Rendering settings
// ==================================================================
QGroupBox *renderSettingsBox = new QGroupBox("Render Settings");
vlayout.addWidget(renderSettingsBox);
// Renderer type
QHBoxLayout rendererTypeLayout;
QLabel rendererTypeLabel("Renderer: ");
QComboBox rendererTypeSelection;
rendererTypeSelection.addItem("Path Tracer");
rendererTypeSelection.addItem("Direct Lighting Renderer");
rendererTypeSelection.addItem("A+E Ray Marcher");
rendererTypeSelection.setCurrentIndex(cmdline.rendererType);
rendererTypeLayout.addWidget(&rendererTypeLabel);
rendererTypeLayout.addWidget(&rendererTypeSelection);
// Shade mode
QHBoxLayout shadeModeLayout;
QLabel shadeModeLabel("Shade Mode: ");
QComboBox shadeModeSelection;
for (int i=0; i<renderer.shadeModes().size(); ++i) {
shadeModeSelection.addItem(renderer.shadeModes()[i].c_str());
}
shadeModeSelection.setCurrentIndex(cmdline.shadeMode);
shadeModeLayout.addWidget(&shadeModeLabel);
shadeModeLayout.addWidget(&shadeModeSelection);
// Light source
QHBoxLayout light0Layout;
QCheckBox light0Enabled("Enable Light");
light0Enabled.setCheckState(Qt::Unchecked);