/
VolRender.cpp
1061 lines (908 loc) · 36.2 KB
/
VolRender.cpp
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// ---------------------------------------------------------------
// VolRender.cpp
// ---------------------------------------------------------------
#include <VolRender.H>
#include <AMReX_DataServices.H>
#include <GlobalUtilities.H>
#include <AMReX_ParallelDescriptor.H>
#include <AMReX_AmrvisConstants.H>
#include <iostream>
#include <cstdlib>
using std::cerr;
using std::cout;
using std::endl;
#include <ctime>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
using namespace amrex;
extern Real RadToDeg(Real angle);
extern Real DegToRad(Real angle);
#define CheckVP(vpret, n) \
if(vpret != VP_OK) { \
cerr << "VolPack error " << n << ": " \
<< vpGetErrorString(vpGetError(vpc)) << endl; \
exit(-4); \
}
// -------------------------------------------------------------------
VolRender::VolRender(const Vector<Box> &drawdomain, int mindrawnlevel,
int maxdrawnlevel, Palette *paletteptr,
const string &asLightFileName)
{
bDrawAllBoxes = false;
minDrawnLevel = mindrawnlevel;
maxDataLevel = maxdrawnlevel;
drawnDomain = drawdomain;
vpDataValid = false;
swfDataValid = false;
swfDataAllocated = false;
palettePtr = paletteptr;
preClassify = true;
// these are the defaults
ambientMat = 0.28;
diffuseMat = 0.35;
specularMat = 0.39;
shinyMat = 10.0;
minRayOpacity = (float) 0.05;
maxRayOpacity = (float) 0.95;
Real ambient, diffuse, specular, shiny, minray, maxray;
bool bFileOk = AVGlobals::ReadLightingFile(asLightFileName, ambient, diffuse,
specular, shiny, minray, maxray);
if(bFileOk) {
if(0.0 > ambient || ambient > 1.0) {
cerr << "Error: ambient value must be in the range (0.0, 1.0)." << endl;
} else {
ambientMat = ambient;
}
if(0.0 > diffuse || diffuse > 1.0) {
cerr << "Error: diffuse value must be in the range (0.0, 1.0)." << endl;
} else {
diffuseMat = diffuse;
}
if(0.0 > specular || specular > 1.0) {
cerr << "Error: specular value must be in the range (0.0, 1.0)." << endl;
} else {
specularMat = specular;
}
shinyMat = shiny;
if(0.0 > minray || minray > 1.0) {
cerr << "Error: minray value must be in the range (0.0, 1.0)." << endl;
} else {
minRayOpacity = (float) minray;
}
if(0.0 > maxray || maxray > 1.0) {
cerr << "Error: maxray value must be in the range (0.0, 1.0)." << endl;
} else {
maxRayOpacity = (float) maxray;
}
}
volData = NULL;
voxelFields = 3;
//voxel field variables:
static RawVoxel* dummy_voxel;
normalField = 0;
normalOffset = vpFieldOffset(dummy_voxel, normal);
normalSize = 2; // sizeof(short); on a t3e this will want to be 2
normalMax = VP_NORM_MAX;
densityField = 1;
densityOffset = vpFieldOffset(dummy_voxel, density);
densitySize = sizeof(unsigned char);
densityMax = 255;
gradientField = 2;
gradientOffset = vpFieldOffset(dummy_voxel, gradient);
gradientSize = sizeof(unsigned char);
gradientMax = 255;
lightingModel = true;
paletteSize = 256;
if(ParallelDescriptor::IOProcessor()) {
// must initialize vpc before calling ReadTransferFile
vpc = vpCreateContext();
maxDenRampPts = densityMax + 1;
maxShadeRampPts = normalMax + 1;
density_ramp.resize(maxDenRampPts);
shade_table.resize(maxShadeRampPts);
value_shade_table.resize(paletteSize);
maxGradRampPts = gradientMax + 1;
gradient_ramp.resize(maxGradRampPts);
SetProperties();
rows = drawnDomain[maxDataLevel].length(Amrvis::XDIR);
cols = drawnDomain[maxDataLevel].length(Amrvis::YDIR);
planes = drawnDomain[maxDataLevel].length(Amrvis::ZDIR);
// --- describe the layout of the volume
vpResult vpret = vpSetVolumeSize(vpc, rows, cols, planes);
CheckVP(vpret, 1);
}
bVolRenderDefined = true;
} // end VolRender()
// -------------------------------------------------------------------
VolRender::~VolRender() {
BL_ASSERT(bVolRenderDefined);
if(ParallelDescriptor::IOProcessor()) {
//cout << "_in VolRender::~VolRender(): volData = " << volData << endl;
vpDestroyContext(vpc);
//cout << "_after vpDestroyContext: volData = " << volData << endl;
delete [] volData;
//cout << "_after delete [] volData: volData = " << volData << endl;
if(swfDataAllocated) {
delete [] swfData;
}
}
}
// -------------------------------------------------------------------
bool VolRender::AllocateSWFData() {
BL_ASSERT(bVolRenderDefined);
// --- create the big array
swfDataSize = drawnDomain[maxDataLevel].numPts();
cout << "swfData box size = "
<< drawnDomain[maxDataLevel] << " " << swfDataSize << endl;
swfData = new unsigned char[swfDataSize];
if(swfData == NULL) {
cerr << "Error in AmrPicture::ChangeDerived: could not allocate "
<< swfDataSize << " bytes for swfData." << endl;
swfDataAllocated = false;
} else {
swfDataAllocated = true;
}
return swfDataAllocated;
}
// -------------------------------------------------------------------
void VolRender::MakeSWFData(amrex::DataServices *dataServicesPtr,
Real rDataMin, Real rDataMax,
const string &derivedName,
int iPaletteStart, int iPaletteEnd,
int iBlackIndex, int iWhiteIndex,
int iColorSlots, const bool bdrawboxes)
{
BL_ASSERT(bVolRenderDefined);
amrex::ignore_unused(iPaletteEnd, iBlackIndex, iWhiteIndex);
if(swfDataValid) {
return;
}
bDrawAllBoxes = bdrawboxes;
if( ! swfDataAllocated) {
if(ParallelDescriptor::IOProcessor()) {
swfDataAllocated = AllocateSWFData();
} else {
swfDataAllocated = true;
}
}
swfDataValid = true;
clock_t time0 = clock();
int maxDrawnLevel(maxDataLevel);
Box grefbox;
Box swfDataBox(drawnDomain[maxDrawnLevel]);
FArrayBox swfFabData;
if(ParallelDescriptor::IOProcessor()) {
swfFabData.resize(swfDataBox, 1);
}
amrex::DataServices::Dispatch(DataServices::FillVarOneFab, dataServicesPtr,
(void *) &swfFabData,
(void *) &swfDataBox,
maxDrawnLevel,
(void *) &derivedName);
if(ParallelDescriptor::IOProcessor()) {
Real gmin(rDataMin);
Real gmax(rDataMax);
Real globalDiff(gmax - gmin);
Real oneOverGDiff;
if(globalDiff < FLT_MIN) {
oneOverGDiff = 0.0; // so we dont divide by zero
} else {
oneOverGDiff = 1.0 / globalDiff;
}
int cSlotsAvail(iColorSlots - 1);
cout << "Filling swfFabData..." << endl;
// copy data into swfData and change to chars
Real dat;
char chardat;
Real *dataPoint = swfFabData.dataPtr();
int sindexbase;
int srows = swfDataBox.length(Amrvis::XDIR);
int scols = swfDataBox.length(Amrvis::YDIR);
//int splanes = swfDataBox.length(Amrvis::ZDIR);
int scolssrowstmp = scols*srows;
int sstartr = swfDataBox.smallEnd(Amrvis::XDIR);
//int sstartc = swfDataBox.smallEnd(Amrvis::YDIR);
int sstartp = swfDataBox.smallEnd(Amrvis::ZDIR);
//int sendr = swfDataBox.bigEnd(Amrvis::XDIR);
int sendc = swfDataBox.bigEnd(Amrvis::YDIR);
//int sendp = swfDataBox.bigEnd(Amrvis::ZDIR);
Box gbox(swfDataBox);
Box goverlap(gbox & drawnDomain[maxDrawnLevel]);
int gstartr = gbox.smallEnd(Amrvis::XDIR);
int gstartc = gbox.smallEnd(Amrvis::YDIR);
int gstartp = gbox.smallEnd(Amrvis::ZDIR);
int gostartr = goverlap.smallEnd(Amrvis::XDIR) - gstartr;
int gostartc = goverlap.smallEnd(Amrvis::YDIR) - gstartc;
int gostartp = goverlap.smallEnd(Amrvis::ZDIR) - gstartp;
int goendr = goverlap.bigEnd(Amrvis::XDIR) - gstartr;
int goendc = goverlap.bigEnd(Amrvis::YDIR) - gstartc;
int goendp = goverlap.bigEnd(Amrvis::ZDIR) - gstartp;
int grows = gbox.length(Amrvis::XDIR);
int gcols = gbox.length(Amrvis::YDIR);
//int gplanes = gbox.length(Amrvis::ZDIR);
int gcolsgrowstmp(gcols * grows);
int gpgcgrtmp, gcgrowstmp;
for(int gp(gostartp); gp <= goendp; ++gp) {
gpgcgrtmp = gp * gcolsgrowstmp;
for(int gc(gostartc); gc <= goendc; ++gc) {
gcgrowstmp = gpgcgrtmp + gc * grows;
for(int gr(gostartr); gr <= goendr; ++gr) {
//dat = dataPoint[(gp * gcols * grows) + (gc * grows) + gr]; // works
dat = dataPoint[gcgrowstmp + gr];
dat = max(dat,gmin); // clip data if out of range
dat = min(dat,gmax);
chardat = (char) (((dat - gmin) * oneOverGDiff) * cSlotsAvail);
chardat += (char) iPaletteStart;
int gprev = gostartp + goendp - gp;
sindexbase =
//(((gp + gstartp) - sstartp) * scolssrowstmp) +
(((gprev + gstartp) - sstartp) * scolssrowstmp) +
((sendc - ((gc + gstartc))) * srows) + // check this
((gr + gstartr) - sstartr);
swfData[sindexbase] = chardat;
}
}
} // end for(gp...)
// ---------------- VolumeBoxes
bool bDrawVolumeBoxes(AVGlobals::GetBoxColor() > -1); // need to limit
// to palmaxindex
if(bDrawVolumeBoxes) {
int edger, edgec, edgep;
int volumeBoxColor(AVGlobals::GetBoxColor());
int gr, gc, gp, sr, sc, sp, sindex;
AmrData &amrData = dataServicesPtr->AmrDataRef();
if(bDrawAllBoxes) {
for(int lev(minDrawnLevel); lev <= maxDrawnLevel; ++lev) {
int crr(amrex::CRRBetweenLevels(lev, maxDrawnLevel,
amrData.RefRatio()));
const BoxArray &gridBoxes = amrData.boxArray(lev);
for(int iGrid(0); iGrid < gridBoxes.size(); ++iGrid) {
gbox = gridBoxes[iGrid];
// grow high end by one to eliminate overlap
//gbox.growHi(Amrvis::XDIR, 1);
//gbox.growHi(Amrvis::YDIR, 1);
//gbox.growHi(Amrvis::ZDIR, 1);
//
Box goverlapdd(gbox & drawnDomain[lev]);
grefbox = goverlapdd;
grefbox.refine(crr);
int sGstartr(gbox.smallEnd(Amrvis::XDIR));
int sGstartc(gbox.smallEnd(Amrvis::YDIR));
int sGstartp(gbox.smallEnd(Amrvis::ZDIR));
int sGostartr(goverlapdd.smallEnd(Amrvis::XDIR) - sGstartr);
int sGostartc(goverlapdd.smallEnd(Amrvis::YDIR) - sGstartc);
int sGostartp(goverlapdd.smallEnd(Amrvis::ZDIR) - sGstartp);
int sGoendr(goverlapdd.bigEnd(Amrvis::XDIR) - sGstartr);
int sGoendc(goverlapdd.bigEnd(Amrvis::YDIR) - sGstartc);
int sGoendp(goverlapdd.bigEnd(Amrvis::ZDIR) - sGstartp);
grows = gbox.length(Amrvis::XDIR);
gcols = gbox.length(Amrvis::YDIR);
if(crr != 1) {
int sGcolsgrowstmp(gcols * grows);
int ddsez(drawnDomain[lev].smallEnd(Amrvis::ZDIR));
int ddbez(drawnDomain[lev].bigEnd(Amrvis::ZDIR));
for(gp = sGostartp; gp <= sGoendp; ++gp) {
int gprev = ddsez + ddbez - (gp + sGstartp);
if(gp == sGostartp || gp == sGoendp) {
edgep = 1;
} else {
edgep = 0;
}
gpgcgrtmp = gp * sGcolsgrowstmp;
for(gc = sGostartc; gc <= sGoendc; ++gc) {
if(gc == sGostartc || gc == sGoendc) {
edgec = 1;
} else {
edgec = 0;
}
for(gr = sGostartr; gr <= sGoendr; ++gr) {
if(gr == sGostartr || gr == sGoendr) {
edger = 1;
} else {
edger = 0;
}
//sindexbase = (((gp + sGstartp) * crr - sstartp) * scolssrowstmp) +
sindexbase = (((gprev) * crr - sstartp) * scolssrowstmp) +
((sendc - ((gc + sGstartc) * crr)) * srows) +
((gr + sGstartr) * crr - sstartr);
if((edger + edgec + edgep) > 1) {
// (possibly) draw boxes into dataset
int onEdger, onEdgec, onEdgep;
for(sp = 0; sp < crr; ++sp) {
if((gp==sGostartp && sp==0) || (gp==sGoendp && sp == (crr-1))) {
onEdgep = 1;
} else {
onEdgep = 0;
}
for(sc = 0; sc < crr; ++sc) {
if((gc==sGostartc && sc==0) || (gc==sGoendc && sc == (crr-1))) {
onEdgec = 1;
} else {
onEdgec = 0;
}
for(sr = 0; sr < crr; ++sr) {
if((gr==sGostartr && sr==0) || (gr==sGoendr && sr == (crr-1))) {
onEdger = 1;
} else {
onEdger = 0;
}
if((onEdger + onEdgec + onEdgep) > 1) {
sindex = sindexbase + ((sp * scolssrowstmp) -
(sc * srows) + sr);
swfData[sindex] = volumeBoxColor;
}
}
}
} // end for(sp...)
}
}
}
} // end for(gp...)
} else { // crr == 1
int ddsez(drawnDomain[lev].smallEnd(Amrvis::ZDIR));
int ddbez(drawnDomain[lev].bigEnd(Amrvis::ZDIR));
for(gp = sGostartp; gp <= sGoendp; ++gp) {
int gprev = ddsez + ddbez - (gp + sGstartp);
if(gp == sGostartp || gp == sGoendp) {
edgep = 1;
} else {
edgep = 0;
}
for(gc = sGostartc; gc <= sGoendc; ++gc) {
if(gc == sGostartc || gc == sGoendc) {
edgec = 1;
} else {
edgec = 0;
}
for(gr = sGostartr; gr <= sGoendr; ++gr) {
if(gr == sGostartr || gr == sGoendr) {
edger = 1;
} else {
edger = 0;
}
if((edger + edgec + edgep) > 1) {
sindexbase =
//(((gp + sGstartp) - sstartp) * scolssrowstmp) +
((gprev - sstartp) * scolssrowstmp) +
((sendc - ((gc + sGstartc))) * srows) +
((gr + sGstartr) - sstartr);
swfData[sindexbase] = volumeBoxColor;
}
}
}
} // end for(gp...)
} // end if(crr...)
} // end for(iGrid...)
} // end for(lev...)
} else { // only draw the boundingbox
int lev(minDrawnLevel);
int crr(amrex::CRRBetweenLevels(lev, maxDrawnLevel,
amrData.RefRatio()));
gbox = drawnDomain[lev];
Box sGoverlap(gbox & drawnDomain[lev]);
grefbox = sGoverlap;
grefbox.refine(crr);
int sGstartr(gbox.smallEnd(Amrvis::XDIR));
int sGstartc(gbox.smallEnd(Amrvis::YDIR));
int sGstartp(gbox.smallEnd(Amrvis::ZDIR));
int sGostartr(sGoverlap.smallEnd(Amrvis::XDIR) - sGstartr);
int sGostartc(sGoverlap.smallEnd(Amrvis::YDIR) - sGstartc);
int sGostartp(sGoverlap.smallEnd(Amrvis::ZDIR) - sGstartp);
int sGoendr(sGoverlap.bigEnd(Amrvis::XDIR) - sGstartr);
int sGoendc(sGoverlap.bigEnd(Amrvis::YDIR) - sGstartc);
int sGoendp(sGoverlap.bigEnd(Amrvis::ZDIR) - sGstartp);
grows = gbox.length(Amrvis::XDIR);
gcols = gbox.length(Amrvis::YDIR);
if(crr != 1) {
int sGcolsgrowstmp(gcols * grows);
for(gp = sGostartp; gp <= sGoendp; ++gp) {
if(gp == sGostartp || gp == sGoendp) {
edgep = 1;
} else {
edgep = 0;
}
gpgcgrtmp = gp * sGcolsgrowstmp;
for(gc = sGostartc; gc <= sGoendc; ++gc) {
if(gc == sGostartc || gc == sGoendc) {
edgec = 1;
} else {
edgec = 0;
}
for(gr = sGostartr; gr <= sGoendr; ++gr) {
if(gr == sGostartr || gr == sGoendr) {
edger = 1;
} else {
edger = 0;
}
sindexbase = (((gp + sGstartp) * crr - sstartp) * scolssrowstmp) +
((sendc - ((gc + sGstartc) * crr)) * srows) +
((gr + sGstartr) * crr - sstartr);
if((edger + edgec + edgep) > 1) {
// (possibly) draw boxes into dataset
int onEdger, onEdgec, onEdgep;
for(sp = 0; sp < crr; ++sp) {
if((gp==sGostartp && sp==0) || (gp==sGoendp && sp == (crr-1))) {
onEdgep = 1;
} else {
onEdgep = 0;
}
for(sc = 0; sc < crr; ++sc) {
if((gc==sGostartc && sc==0) || (gc==sGoendc && sc == (crr-1))) {
onEdgec = 1;
} else {
onEdgec = 0;
}
for(sr = 0; sr < crr; ++sr) {
if((gr==sGostartr && sr==0) || (gr==sGoendr && sr == (crr-1))) {
onEdger = 1;
} else {
onEdger = 0;
}
if((onEdger + onEdgec + onEdgep) > 1) {
sindex = sindexbase + ((sp * scolssrowstmp) -
(sc * srows) + sr);
swfData[sindex] = volumeBoxColor;
}
}
}
} // end for(sp...)
}
}
}
} // end for(gp...)
} else { // crr == 1
int sGcolsgrowstmp(gcols * grows);
for(gp = sGostartp; gp <= sGoendp; ++gp) {
if(gp == sGostartp || gp == sGoendp) {
edgep = 1;
} else {
edgep = 0;
}
gpgcgrtmp = gp * sGcolsgrowstmp;
for(gc = sGostartc; gc <= sGoendc; ++gc) {
if(gc == sGostartc || gc == sGoendc) {
edgec = 1;
} else {
edgec = 0;
}
for(gr = sGostartr; gr <= sGoendr; ++gr) {
if(gr == sGostartr || gr == sGoendr) {
edger = 1;
} else {
edger = 0;
}
if((edger + edgec + edgep) > 1) {
sindexbase =
(((gp + sGstartp) - sstartp) * scolssrowstmp) +
((sendc - ((gc + sGstartc))) * srows) +
((gr + sGstartr) - sstartr);
swfData[sindexbase] = volumeBoxColor;
}
}
}
} // end for(gp...)
} // end if(crr...)
} // end if(bDrawAllBoxes)
} // end if(bDrawVolumeBoxes)
} // end if(ParallelDescriptor::IOProcessor())
// fix up cartgrid body
AmrData &amrData = dataServicesPtr->AmrDataRef();
const string vfracName = "vfrac";
if(amrData.CartGrid() && derivedName != vfracName) {
// reuse swfFabData
amrex::DataServices::Dispatch(DataServices::FillVarOneFab, dataServicesPtr,
(void *) &swfFabData,
(void *) &swfDataBox,
maxDrawnLevel,
(void *) &vfracName);
if(ParallelDescriptor::IOProcessor()) {
char bodyColor = (char) palettePtr->BodyIndex();
Real *dataPoint = swfFabData.dataPtr();
Real vfeps = amrData.VfEps(maxDrawnLevel);
int sindexbase;
int srows = swfDataBox.length(Amrvis::XDIR);
int scols = swfDataBox.length(Amrvis::YDIR);
int scolssrowstmp = scols*srows;
int sstartr = swfDataBox.smallEnd(Amrvis::XDIR);
int sstartp = swfDataBox.smallEnd(Amrvis::ZDIR);
int sendc = swfDataBox.bigEnd(Amrvis::YDIR);
Box gbox(swfDataBox);
Box goverlap(gbox & drawnDomain[maxDrawnLevel]);
int sGstartr = gbox.smallEnd(Amrvis::XDIR);
int sGstartc = gbox.smallEnd(Amrvis::YDIR);
int sGstartp = gbox.smallEnd(Amrvis::ZDIR);
int sGostartr = goverlap.smallEnd(Amrvis::XDIR) - sGstartr;
int sGostartc = goverlap.smallEnd(Amrvis::YDIR) - sGstartc;
int sGostartp = goverlap.smallEnd(Amrvis::ZDIR) - sGstartp;
int sGoendr = goverlap.bigEnd(Amrvis::XDIR) - sGstartr;
int sGoendc = goverlap.bigEnd(Amrvis::YDIR) - sGstartc;
int sGoendp = goverlap.bigEnd(Amrvis::ZDIR) - sGstartp;
int grows = gbox.length(Amrvis::XDIR);
int gcols = gbox.length(Amrvis::YDIR);
int gcolsgrowstmp(gcols * grows);
int gpgcgrtmp, gcgrowstmp;
for(int gp(sGostartp); gp <= sGoendp; ++gp) {
gpgcgrtmp = gp*gcolsgrowstmp;
for(int gc(sGostartc); gc <= sGoendc; ++gc) {
gcgrowstmp = gpgcgrtmp + gc*grows;
for(int gr(sGostartr); gr <= sGoendr; ++gr) {
//dat = dataPoint[(gp*gcols*grows)+(gc*grows)+gr]; // works
if(dataPoint[gcgrowstmp + gr] < vfeps) { // body
int gprev = sGostartp + sGoendp - gp;
sindexbase =
(((gprev+sGstartp)-sstartp) * scolssrowstmp) +
((sendc-((gc+sGstartc))) * srows) + // check this
((gr+sGstartr)-sstartr);
swfData[sindexbase] = bodyColor;
}
}
}
} // end for(gp...)
} // end if(ioproc)
}
if(ParallelDescriptor::IOProcessor()) {
cout << endl;
cout << "--------------- make swfData time = "
<< ((clock()-time0)/1000000.0) << endl;
}
} // end MakeSWFData(...)
// -------------------------------------------------------------------
void VolRender::WriteSWFData(const string &filenamebase, bool SWFLight) {
cout << "VolRender::WriteSWFData" << endl;
BL_ASSERT(bVolRenderDefined);
if(ParallelDescriptor::IOProcessor()) {
cout << "vpClassify Scalars..." << endl; // --- classify
clock_t time0 = clock();
vpResult vpret;
bool PCtemp(preClassify);
preClassify = true;
// here set lighting or value model
bool bLMtemp(lightingModel);
lightingModel = SWFLight;
MakeVPData();
preClassify = PCtemp;
lightingModel = bLMtemp;
cout << "----- make vp data time = " << ((clock() - time0)/1000000.0) << endl;
string filename = filenamebase;
filename += (SWFLight ? ".lt" : ".val" );
filename += ".vpdat";
cout << "----- storing classified volume into file: " << filename << endl;
FILE *fptr = fopen(filename.c_str(), "w");
vpret = vpStoreClassifiedVolume(vpc, fileno(fptr));
CheckVP(vpret, 4);
fclose(fptr);
}
}
// -------------------------------------------------------------------
void VolRender::InvalidateSWFData() {
swfDataValid = false;
}
// -------------------------------------------------------------------
void VolRender::InvalidateVPData() {
vpDataValid = false;
}
// -------------------------------------------------------------------
void VolRender::SetLightingModel(bool lightOn) {
if(lightingModel == lightOn) {
return;
}
lightingModel = lightOn;
if(lightingModel == true) {
vpSetVoxelField(vpc, normalField, normalSize, normalOffset, maxShadeRampPts-1);
} else { // value model
vpSetVoxelField(vpc, normalField, normalSize, normalOffset, paletteSize-1);
}
}
// -------------------------------------------------------------------
void VolRender::SetPreClassifyAlgorithm(bool pC) {
preClassify = pC;
}
// -------------------------------------------------------------------
void VolRender::SetImage(unsigned char *image_data, int width, int height,
int pixel_type)
{
vpSetImage(vpc, image_data, width, height, width, pixel_type);
}
// -------------------------------------------------------------------
void VolRender::MakePicture(Real mvmat[4][4], Real Length, int width,
int height)
{
vpCurrentMatrix(vpc, VP_MODEL);
vpIdentityMatrix(vpc);
#ifdef BL_USE_FLOAT
double dmvmat[4][4];
for(int i(0); i < 4; ++i) {
for(int j(0); j < 4; ++j) {
dmvmat[i][j] = (double) mvmat[i][j];
}
}
vpSetMatrix(vpc, dmvmat);
#else
vpSetMatrix(vpc, mvmat);
#endif
vpCurrentMatrix(vpc, VP_PROJECT);
vpIdentityMatrix(vpc);
vpLen = Length;
if(width < height) { // undoes volpacks aspect ratio scaling
vpWindow(vpc, VP_PARALLEL,
-Length*vpAspect, Length*vpAspect,
-Length, Length,
-Length, Length);
} else {
vpWindow(vpc, VP_PARALLEL,
-Length, Length,
-Length*vpAspect, Length*vpAspect,
-Length, Length);
}
vpResult vpret;
if(lightingModel) {
vpret = vpShadeTable(vpc);
CheckVP(vpret, 12);
}
if(preClassify) {
vpret = vpRenderClassifiedVolume(vpc); // --- render
CheckVP(vpret, 11);
} else {
vpret = vpClassifyVolume(vpc); // - classify and then render
CheckVP(vpret, 11.1);
vpret = vpRenderRawVolume(vpc);
CheckVP(vpret, 11.2);
}
}
// -------------------------------------------------------------------
void VolRender::MakeVPData() {
BL_ASSERT(bVolRenderDefined);
if(ParallelDescriptor::IOProcessor()) {
clock_t time0 = clock();
vpDataValid = true;
cout << "vpClassifyScalars..." << endl; // --- classify
vpSetd(vpc, VP_MIN_VOXEL_OPACITY, minRayOpacity);
vpSetd(vpc, VP_MAX_RAY_OPACITY, maxRayOpacity);
vpResult vpret;
if(preClassify) {
if(lightingModel) {
// #define AV_LOWMEMRENDER
#ifdef AV_LOWMEMRENDER
int xStride(sizeof(RawVoxel));
//int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) * sizeof(RawVoxel));
int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR));
//int zStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) *
//drawnDomain[maxDataLevel].length(Amrvis::YDIR) * sizeof(RawVoxel));
long int nrc(drawnDomain[maxDataLevel].length(Amrvis::YDIR) *
drawnDomain[maxDataLevel].length(Amrvis::ZDIR));
RawVoxel *vscanline = volData;
cout << "****** volData = " << volData << endl;
cout << "****** classifying " << nrc << " scanlines." << endl;
for(int ix(0); ix < nrc; ++ix) {
//for(int iz(0); iz < drawnDomain[maxDataLevel].length(Amrvis::ZDIR); ++iz) {
//for(int iy(0); iy < drawnDomain[maxDataLevel].length(Amrvis::YDIR); ++iy) {
if(ix % 100 == 0) {
cout << "----- vscanline = " << ix << endl;
}
vpret = vpClassifyScanline(vpc, (void *) vscanline);
CheckVP(vpret, 6.05);
vscanline += yStride;
//}
}
//CheckVP(vpret, 6);
//vpret = vpClassifyScalars(vpc, swfData, swfDataSize,
//densityField, gradientField, normalField);
//CheckVP(vpret, 6);
#else
vpret = vpClassifyScalars(vpc, swfData, swfDataSize,
densityField, gradientField, normalField);
CheckVP(vpret, 6);
#endif
} else { // value model
#ifdef AV_LOWMEMRENDER
// the classification and loading of the value model
delete [] volData;
volData = new RawVoxel[swfDataSize]; // volpack will delete this
int xStride(sizeof(RawVoxel));
//int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) * sizeof(RawVoxel));
int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR));
int zStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) *
drawnDomain[maxDataLevel].length(Amrvis::YDIR) * sizeof(RawVoxel));
vpret = vpSetRawVoxels(vpc, volData, swfDataSize * sizeof(RawVoxel),
xStride, yStride, zStride);
CheckVP(vpret, 9.4);
for(int vindex(0); vindex < swfDataSize; ++vindex) {
volData[vindex].normal = swfData[vindex];
volData[vindex].density = swfData[vindex];
}
long int nrc(drawnDomain[maxDataLevel].length(Amrvis::YDIR) *
drawnDomain[maxDataLevel].length(Amrvis::ZDIR));
RawVoxel *vscanline = volData;
cout << "****** classifying " << nrc << " scanlines." << endl;
for(int ix(0); ix < nrc; ++ix) {
if(ix % 100 == 0) {
cout << "----- vscanline = " << ix << endl;
}
vpret = vpClassifyScanline(vpc, (void *) vscanline);
CheckVP(vpret, 9.5);
vscanline += yStride;
}
#else
// the classification and loading of the value model
delete [] volData;
volData = new RawVoxel[swfDataSize]; // volpack will delete this
int xStride(sizeof(RawVoxel));
int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) * sizeof(RawVoxel));
int zStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) *
drawnDomain[maxDataLevel].length(Amrvis::YDIR) * sizeof(RawVoxel));
vpret = vpSetRawVoxels(vpc, volData, swfDataSize * sizeof(RawVoxel),
xStride, yStride, zStride);
CheckVP(vpret, 9.4);
for(int vindex(0); vindex < swfDataSize; ++vindex) {
volData[vindex].normal = swfData[vindex];
volData[vindex].density = swfData[vindex];
}
vpret = vpClassifyVolume(vpc);
CheckVP(vpret, 9.5);
#endif
}
} else { // load the volume data and precompute the minmax octree
if(lightingModel) {
delete [] volData;
volData = new RawVoxel[swfDataSize];
int xStride(sizeof(RawVoxel));
int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) * sizeof(RawVoxel));
int zStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) *
drawnDomain[maxDataLevel].length(Amrvis::YDIR) * sizeof(RawVoxel));
vpret = vpSetRawVoxels(vpc, volData, swfDataSize * sizeof(RawVoxel),
xStride, yStride, zStride);
CheckVP(vpret, 9.45);
vpret = vpVolumeNormals(vpc, swfData, swfDataSize,
densityField, gradientField, normalField);
CheckVP(vpret, 6.1);
} else { // value model
delete [] volData;
volData = new RawVoxel[swfDataSize];
int xStride(sizeof(RawVoxel));
int yStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) * sizeof(RawVoxel));
int zStride(drawnDomain[maxDataLevel].length(Amrvis::XDIR) *
drawnDomain[maxDataLevel].length(Amrvis::YDIR) * sizeof(RawVoxel));
vpret = vpSetRawVoxels(vpc, volData, swfDataSize * sizeof(RawVoxel),
xStride, yStride, zStride);
CheckVP(vpret, 9.4);
for(int vindex(0); vindex < swfDataSize; ++vindex) {
volData[vindex].normal = swfData[vindex];
volData[vindex].density = swfData[vindex];
}
}
vpret = vpMinMaxOctreeThreshold(vpc, DENSITY_PARAM,
OCTREE_DENSITY_THRESH);
CheckVP(vpret, 9.41);
if(classifyFields == 2) {
vpret = vpMinMaxOctreeThreshold(vpc, GRADIENT_PARAM,
OCTREE_GRADIENT_THRESH);
CheckVP(vpret, 9.42);
}
vpret = vpCreateMinMaxOctree(vpc, 1, OCTREE_BASE_NODE_SIZE);
CheckVP(vpret, 9.43);
}
// --- set the shading parameters
if(lightingModel) {
vpret = vpSetLookupShader(vpc, 1, 1, normalField, shade_table.dataPtr(),
maxShadeRampPts * sizeof(float), 0, NULL, 0);
CheckVP(vpret, 7);
vpSetMaterial(vpc, VP_MATERIAL0, VP_AMBIENT, VP_BOTH_SIDES,
ambientMat, ambientMat, ambientMat);//0.28, 0.28, 0.28);
vpSetMaterial(vpc, VP_MATERIAL0, VP_DIFFUSE, VP_BOTH_SIDES,
diffuseMat, diffuseMat, diffuseMat);//0.35, 0.35, 0.35);
vpSetMaterial(vpc, VP_MATERIAL0, VP_SPECULAR, VP_BOTH_SIDES,
specularMat, specularMat, specularMat);//0.39, 0.39, 0.39);
vpSetMaterial(vpc, VP_MATERIAL0, VP_SHINYNESS, VP_BOTH_SIDES,
shinyMat, 0.0, 0.0);//10.0, 0.0, 0.0);
vpSetLight(vpc, VP_LIGHT0, VP_DIRECTION, 0.3, 0.3, 1.0);
vpSetLight(vpc, VP_LIGHT0, VP_COLOR, 1.0, 1.0, 1.0);
vpEnable(vpc, VP_LIGHT0, 1);
vpSeti(vpc, VP_CONCAT_MODE, VP_CONCAT_LEFT);
// --- compute shading lookup table
vpret = vpShadeTable(vpc);
CheckVP(vpret, 8);
} else { // value model
BL_ASSERT(palettePtr != NULL);
for(int sn(0); sn < paletteSize; ++sn) {
value_shade_table[sn] = (float) sn;
}
value_shade_table[0] = (float) AVGlobals::MaxPaletteIndex();
float maxf(0.0);
float minf(1000000.0);
for(int ijk(0); ijk < paletteSize; ++ijk) {
maxf = max(maxf, value_shade_table[ijk]);
minf = min(minf, value_shade_table[ijk]);
}
vpret = vpSetLookupShader(vpc, 1, 1, normalField,
value_shade_table.dataPtr(),
paletteSize * sizeof(float), 0, NULL, 0);
CheckVP(vpret, 9);
vpSetMaterial(vpc, VP_MATERIAL0, VP_AMBIENT, VP_BOTH_SIDES,
ambientMat, ambientMat, ambientMat);//0.28, 0.28, 0.28);
vpSetMaterial(vpc, VP_MATERIAL0, VP_DIFFUSE, VP_BOTH_SIDES,
diffuseMat, diffuseMat, diffuseMat);//0.35, 0.35, 0.35);
vpSetMaterial(vpc, VP_MATERIAL0, VP_SPECULAR, VP_BOTH_SIDES,
specularMat, specularMat, specularMat);//0.39, 0.39, 0.39);
vpSetMaterial(vpc, VP_MATERIAL0, VP_SHINYNESS, VP_BOTH_SIDES,
shinyMat, 0.0, 0.0);//10.0, 0.0, 0.0);
vpSetLight(vpc, VP_LIGHT0, VP_DIRECTION, 0.3, 0.3, 1.0);
vpSetLight(vpc, VP_LIGHT0, VP_COLOR, 1.0, 1.0, 1.0);
vpEnable(vpc, VP_LIGHT0, 1);
vpSeti(vpc, VP_CONCAT_MODE, VP_CONCAT_LEFT);
}
cout << "----- make vp data time = " << ((clock()-time0)/1000000.0) << endl;
}
} // end MakeVPData()
// -------------------------------------------------------------------
void VolRender::MakeDefaultTransProperties() {
classifyFields = 2;
shadeFields = 2;
nDenRampPts = 2;
densityRampX.resize(nDenRampPts);
densityRampY.resize(nDenRampPts);
nGradRampPts = 2;
gradientRampX.resize(nGradRampPts);
gradientRampY.resize(nGradRampPts);
densityRampX[0] = 0; densityRampX[1] = 255;
densityRampY[0] = 0.0; densityRampY[1] = 1.0;
gradientRampX[0] = 0; gradientRampX[1] = 255;
gradientRampY[0] = 0.0; gradientRampY[1] = 1.0;
minRayOpacity = (float) 0.05;
maxRayOpacity = (float) 0.95;
}
// -------------------------------------------------------------------
void VolRender::SetTransferProperties() {
BL_ASSERT(palettePtr != NULL);