/
SoBrepFaceSet.cpp
1086 lines (952 loc) · 36 KB
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SoBrepFaceSet.cpp
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/***************************************************************************
* Copyright (c) 2011 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# ifdef FC_OS_WIN32
# include <windows.h>
# endif
# ifdef FC_OS_MACOSX
# include <OpenGL/gl.h>
# else
# include <GL/gl.h>
# endif
# include <float.h>
# include <algorithm>
# include <Inventor/SoPickedPoint.h>
# include <Inventor/SoPrimitiveVertex.h>
# include <Inventor/actions/SoCallbackAction.h>
# include <Inventor/actions/SoGetBoundingBoxAction.h>
# include <Inventor/actions/SoGetPrimitiveCountAction.h>
# include <Inventor/actions/SoGLRenderAction.h>
# include <Inventor/actions/SoPickAction.h>
# include <Inventor/actions/SoWriteAction.h>
# include <Inventor/bundles/SoMaterialBundle.h>
# include <Inventor/bundles/SoTextureCoordinateBundle.h>
# include <Inventor/elements/SoLazyElement.h>
# include <Inventor/elements/SoOverrideElement.h>
# include <Inventor/elements/SoCoordinateElement.h>
# include <Inventor/elements/SoGLCoordinateElement.h>
# include <Inventor/elements/SoGLCacheContextElement.h>
# include <Inventor/elements/SoLineWidthElement.h>
# include <Inventor/elements/SoPointSizeElement.h>
# include <Inventor/errors/SoDebugError.h>
# include <Inventor/errors/SoReadError.h>
# include <Inventor/details/SoFaceDetail.h>
# include <Inventor/details/SoLineDetail.h>
# include <Inventor/misc/SoState.h>
#endif
#include "SoBrepFaceSet.h"
#include <Gui/SoFCUnifiedSelection.h>
#include <Gui/SoFCSelectionAction.h>
using namespace PartGui;
SO_NODE_SOURCE(SoBrepFaceSet);
void SoBrepFaceSet::initClass()
{
SO_NODE_INIT_CLASS(SoBrepFaceSet, SoIndexedFaceSet, "IndexedFaceSet");
}
SoBrepFaceSet::SoBrepFaceSet()
{
SO_NODE_CONSTRUCTOR(SoBrepFaceSet);
SO_NODE_ADD_FIELD(partIndex, (-1));
SO_NODE_ADD_FIELD(highlightIndex, (-1));
SO_NODE_ADD_FIELD(selectionIndex, (-1));
selectionIndex.setNum(0);
}
SoBrepFaceSet::~SoBrepFaceSet()
{
}
void SoBrepFaceSet::doAction(SoAction* action)
{
if (action->getTypeId() == Gui::SoHighlightElementAction::getClassTypeId()) {
Gui::SoHighlightElementAction* hlaction = static_cast<Gui::SoHighlightElementAction*>(action);
if (!hlaction->isHighlighted()) {
this->highlightIndex = -1;
return;
}
const SoDetail* detail = hlaction->getElement();
if (detail) {
if (detail->isOfType(SoFaceDetail::getClassTypeId())) {
int index = static_cast<const SoFaceDetail*>(detail)->getPartIndex();
this->highlightIndex.setValue(index);
this->highlightColor = hlaction->getColor();
}
else {
this->highlightIndex = -1;
return;
}
}
}
else if (action->getTypeId() == Gui::SoSelectionElementAction::getClassTypeId()) {
Gui::SoSelectionElementAction* selaction = static_cast<Gui::SoSelectionElementAction*>(action);
this->selectionColor = selaction->getColor();
if (selaction->getType() == Gui::SoSelectionElementAction::All) {
int num = this->partIndex.getNum();
this->selectionIndex.setNum(num);
int32_t* v = this->selectionIndex.startEditing();
for (int i=0; i<num;i++)
v[i] = i;
this->selectionIndex.finishEditing();
return;
}
else if (selaction->getType() == Gui::SoSelectionElementAction::None) {
this->selectionIndex.setNum(0);
return;
}
const SoDetail* detail = selaction->getElement();
if (detail) {
if (!detail->isOfType(SoFaceDetail::getClassTypeId())) {
return;
}
int index = static_cast<const SoFaceDetail*>(detail)->getPartIndex();
switch (selaction->getType()) {
case Gui::SoSelectionElementAction::Append:
{
if (this->selectionIndex.find(index) < 0) {
int start = this->selectionIndex.getNum();
this->selectionIndex.set1Value(start, index);
}
}
break;
case Gui::SoSelectionElementAction::Remove:
{
int start = this->selectionIndex.find(index);
this->selectionIndex.deleteValues(start,1);
}
break;
default:
break;
}
}
}
else if (action->getTypeId() == Gui::SoVRMLAction::getClassTypeId()) {
// update the materialIndex field to match with the number of triangles if needed
SoState * state = action->getState();
Binding mbind = this->findMaterialBinding(state);
if (mbind == PER_PART) {
const SoLazyElement* mat = SoLazyElement::getInstance(state);
int numColor = 1;
int numParts = partIndex.getNum();
if (mat) {
numColor = mat->getNumDiffuse();
if (numColor == numParts) {
int count = 0;
const int32_t * indices = this->partIndex.getValues(0);
for (int i=0; i<numParts; i++) {
count += indices[i];
}
this->materialIndex.setNum(count);
int32_t * matind = this->materialIndex.startEditing();
int32_t k = 0;
for (int i=0; i<numParts; i++) {
for (int j=0; j<indices[i]; j++) {
matind[k++] = i;
}
}
this->materialIndex.finishEditing();
}
}
}
}
inherited::doAction(action);
}
#ifdef RENDER_GLARRAYS
void SoBrepFaceSet::GLRender(SoGLRenderAction *action)
{
SoState * state = action->getState();
SoMaterialBundle mb(action);
Binding mbind = this->findMaterialBinding(state);
SoTextureCoordinateBundle tb(action, TRUE, FALSE);
SbBool doTextures = tb.needCoordinates();
int32_t hl_idx = this->highlightIndex.getValue();
int32_t num_selected = this->selectionIndex.getNum();
if (this->coordIndex.getNum() < 3)
return;
if (num_selected > 0)
renderSelection(action);
if (hl_idx >= 0)
renderHighlight(action);
// When setting transparency shouldGLRender() handles the rendering and returns false.
// Therefore generatePrimitives() needs to be re-implemented to handle the materials
// correctly.
if (!this->shouldGLRender(action))
return;
#ifdef RENDER_GLARRAYS
if (!doTextures && index_array.size() && hl_idx < 0 && num_selected <= 0) {
if (mbind == 0) {
mb.sendFirst(); // only one material -> apply it!
renderSimpleArray();
return;
}
else if (mbind == 1) {
renderColoredArray(&mb);
return;
}
}
#endif
Binding nbind = this->findNormalBinding(state);
const SoCoordinateElement * coords;
const SbVec3f * normals;
const int32_t * cindices;
int numindices;
const int32_t * nindices;
const int32_t * tindices;
const int32_t * mindices;
const int32_t * pindices;
int numparts;
SbBool normalCacheUsed;
SbBool sendNormals = !mb.isColorOnly() || tb.isFunction();
this->getVertexData(state, coords, normals, cindices,
nindices, tindices, mindices, numindices,
sendNormals, normalCacheUsed);
mb.sendFirst(); // make sure we have the correct material
// just in case someone forgot
if (!mindices) mindices = cindices;
if (!nindices) nindices = cindices;
pindices = this->partIndex.getValues(0);
numparts = this->partIndex.getNum();
renderShape(static_cast<const SoGLCoordinateElement*>(coords), cindices, numindices,
pindices, numparts, normals, nindices, &mb, mindices, &tb, tindices, nbind, mbind, doTextures?1:0);
// Disable caching for this node
SoGLCacheContextElement::shouldAutoCache(state, SoGLCacheContextElement::DONT_AUTO_CACHE);
// Workaround for #0000433
//#if !defined(FC_OS_WIN32)
if (hl_idx >= 0)
renderHighlight(action);
if (num_selected > 0)
renderSelection(action);
//#endif
}
//****************************************************************************
// renderSimpleArray: normal and coord from vertex_array;
// no texture, color, highlight or selection but highet possible speed;
// all vertices written in one go!
//
void SoBrepFaceSet::renderSimpleArray()
{
int cnt = index_array.size();
if (cnt == 0) return;
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
#if 0
glInterleavedArrays(GL_N3F_V3F, 0, vertex_array.data());
glDrawElements(GL_TRIANGLES, cnt, GL_UNSIGNED_INT, index_array.data());
#else
glInterleavedArrays(GL_N3F_V3F, 0, &(vertex_array[0]));
glDrawElements(GL_TRIANGLES, cnt, GL_UNSIGNED_INT, &(index_array[0]));
#endif
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
//****************************************************************************
// renderColoredArray: normal and coord from vertex_array;
// no texture, highlight or selection but color / material array.
// needs to iterate over parts (i.e. geometry faces)
//
void SoBrepFaceSet::renderColoredArray(SoMaterialBundle *const materials)
{
int num_parts = partIndex.getNum();
int cnt = index_array.size();
if (cnt == 0) return;
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
#if 0
glInterleavedArrays(GL_N3F_V3F, 0, vertex_array.data());
const int32_t* ptr = index_array.data();
#else
glInterleavedArrays(GL_N3F_V3F, 0, &(vertex_array[0]));
const int32_t* ptr = &(index_array[0]);
#endif
for (int part_id = 0; part_id < num_parts; part_id++) {
int tris = partIndex[part_id];
if (tris > 0) {
materials->send(part_id, TRUE);
glDrawElements(GL_TRIANGLES, 3 * tris, GL_UNSIGNED_INT, ptr);
ptr += 3 * tris;
}
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
#else
void SoBrepFaceSet::GLRender(SoGLRenderAction *action)
{
if (this->coordIndex.getNum() < 3)
return;
if (this->selectionIndex.getNum() > 0)
renderSelection(action);
if (this->highlightIndex.getValue() >= 0)
renderHighlight(action);
// When setting transparency shouldGLRender() handles the rendering and returns false.
// Therefore generatePrimitives() needs to be re-implemented to handle the materials
// correctly.
if (!this->shouldGLRender(action))
return;
SoState * state = action->getState();
Binding mbind = this->findMaterialBinding(state);
Binding nbind = this->findNormalBinding(state);
const SoCoordinateElement * coords;
const SbVec3f * normals;
const int32_t * cindices;
int numindices;
const int32_t * nindices;
const int32_t * tindices;
const int32_t * mindices;
const int32_t * pindices;
int numparts;
SbBool doTextures;
SbBool normalCacheUsed;
SoMaterialBundle mb(action);
SoTextureCoordinateBundle tb(action, TRUE, FALSE);
doTextures = tb.needCoordinates();
SbBool sendNormals = !mb.isColorOnly() || tb.isFunction();
this->getVertexData(state, coords, normals, cindices,
nindices, tindices, mindices, numindices,
sendNormals, normalCacheUsed);
mb.sendFirst(); // make sure we have the correct material
// just in case someone forgot
if (!mindices) mindices = cindices;
if (!nindices) nindices = cindices;
pindices = this->partIndex.getValues(0);
numparts = this->partIndex.getNum();
renderShape(static_cast<const SoGLCoordinateElement*>(coords), cindices, numindices,
pindices, numparts, normals, nindices, &mb, mindices, &tb, tindices, nbind, mbind, doTextures?1:0);
// Disable caching for this node
SoGLCacheContextElement::shouldAutoCache(state, SoGLCacheContextElement::DONT_AUTO_CACHE);
// Workaround for #0000433
//#if !defined(FC_OS_WIN32)
if (this->highlightIndex.getValue() >= 0)
renderHighlight(action);
if (this->selectionIndex.getNum() > 0)
renderSelection(action);
//#endif
}
#endif
void SoBrepFaceSet::GLRenderBelowPath(SoGLRenderAction * action)
{
inherited::GLRenderBelowPath(action);
}
// this macro actually makes the code below more readable :-)
#define DO_VERTEX(idx) \
if (mbind == PER_VERTEX) { \
pointDetail.setMaterialIndex(matnr); \
vertex.setMaterialIndex(matnr++); \
} \
else if (mbind == PER_VERTEX_INDEXED) { \
pointDetail.setMaterialIndex(*mindices); \
vertex.setMaterialIndex(*mindices++); \
} \
if (nbind == PER_VERTEX) { \
pointDetail.setNormalIndex(normnr); \
currnormal = &normals[normnr++]; \
vertex.setNormal(*currnormal); \
} \
else if (nbind == PER_VERTEX_INDEXED) { \
pointDetail.setNormalIndex(*nindices); \
currnormal = &normals[*nindices++]; \
vertex.setNormal(*currnormal); \
} \
if (tb.isFunction()) { \
vertex.setTextureCoords(tb.get(coords->get3(idx), *currnormal)); \
if (tb.needIndices()) pointDetail.setTextureCoordIndex(tindices ? *tindices++ : texidx++); \
} \
else if (tbind != NONE) { \
pointDetail.setTextureCoordIndex(tindices ? *tindices : texidx); \
vertex.setTextureCoords(tb.get(tindices ? *tindices++ : texidx++)); \
} \
vertex.setPoint(coords->get3(idx)); \
pointDetail.setCoordinateIndex(idx); \
this->shapeVertex(&vertex);
void SoBrepFaceSet::generatePrimitives(SoAction * action)
{
//TODO
#if 0
inherited::generatePrimitives(action);
#else
//This is highly experimental!!!
if (this->coordIndex.getNum() < 3) return;
SoState * state = action->getState();
if (this->vertexProperty.getValue()) {
state->push();
this->vertexProperty.getValue()->doAction(action);
}
Binding mbind = this->findMaterialBinding(state);
Binding nbind = this->findNormalBinding(state);
const SoCoordinateElement * coords;
const SbVec3f * normals;
const int32_t * cindices;
int numindices;
const int32_t * nindices;
const int32_t * tindices;
const int32_t * mindices;
SbBool doTextures;
SbBool sendNormals;
SbBool normalCacheUsed;
sendNormals = TRUE; // always generate normals
this->getVertexData(state, coords, normals, cindices,
nindices, tindices, mindices, numindices,
sendNormals, normalCacheUsed);
SoTextureCoordinateBundle tb(action, FALSE, FALSE);
doTextures = tb.needCoordinates();
if (!sendNormals) nbind = OVERALL;
else if (normalCacheUsed && nbind == PER_VERTEX) {
nbind = PER_VERTEX_INDEXED;
}
else if (normalCacheUsed && nbind == PER_FACE_INDEXED) {
nbind = PER_FACE;
}
if (this->getNodeType() == SoNode::VRML1) {
// For VRML1, PER_VERTEX means per vertex in shape, not PER_VERTEX
// on the state.
if (mbind == PER_VERTEX) {
mbind = PER_VERTEX_INDEXED;
mindices = cindices;
}
if (nbind == PER_VERTEX) {
nbind = PER_VERTEX_INDEXED;
nindices = cindices;
}
}
Binding tbind = NONE;
if (doTextures) {
if (tb.isFunction() && !tb.needIndices()) {
tbind = NONE;
tindices = NULL;
}
// FIXME: just call inherited::areTexCoordsIndexed() instead of
// the if-check? 20020110 mortene.
else if (SoTextureCoordinateBindingElement::get(state) ==
SoTextureCoordinateBindingElement::PER_VERTEX) {
tbind = PER_VERTEX;
tindices = NULL;
}
else {
tbind = PER_VERTEX_INDEXED;
if (tindices == NULL) tindices = cindices;
}
}
if (nbind == PER_VERTEX_INDEXED && nindices == NULL) {
nindices = cindices;
}
if (mbind == PER_VERTEX_INDEXED && mindices == NULL) {
mindices = cindices;
}
int texidx = 0;
TriangleShape mode = POLYGON;
TriangleShape newmode;
const int32_t *viptr = cindices;
const int32_t *viendptr = viptr + numindices;
const int32_t *piptr = this->partIndex.getValues(0);
int num_partindices = this->partIndex.getNum();
const int32_t *piendptr = piptr + num_partindices;
int32_t v1, v2, v3, v4, v5 = 0, pi; // v5 init unnecessary, but kills a compiler warning.
SoPrimitiveVertex vertex;
SoPointDetail pointDetail;
SoFaceDetail faceDetail;
vertex.setDetail(&pointDetail);
SbVec3f dummynormal(0,0,1);
const SbVec3f *currnormal = &dummynormal;
if (normals) currnormal = normals;
vertex.setNormal(*currnormal);
int matnr = 0;
int normnr = 0;
int trinr = 0;
pi = piptr < piendptr ? *piptr++ : -1;
while (pi == 0) {
// It may happen that a part has no triangles
pi = piptr < piendptr ? *piptr++ : -1;
if (mbind == PER_PART)
matnr++;
else if (mbind == PER_PART_INDEXED)
mindices++;
}
while (viptr + 2 < viendptr) {
v1 = *viptr++;
v2 = *viptr++;
v3 = *viptr++;
if (v1 < 0 || v2 < 0 || v3 < 0) {
break;
}
v4 = viptr < viendptr ? *viptr++ : -1;
if (v4 < 0) newmode = TRIANGLES;
else {
v5 = viptr < viendptr ? *viptr++ : -1;
if (v5 < 0) newmode = QUADS;
else newmode = POLYGON;
}
if (newmode != mode) {
if (mode != POLYGON) this->endShape();
mode = newmode;
this->beginShape(action, mode, &faceDetail);
}
else if (mode == POLYGON) this->beginShape(action, POLYGON, &faceDetail);
// vertex 1 can't use DO_VERTEX
if (mbind == PER_PART) {
if (trinr == 0) {
pointDetail.setMaterialIndex(matnr);
vertex.setMaterialIndex(matnr++);
}
}
else if (mbind == PER_PART_INDEXED) {
if (trinr == 0) {
pointDetail.setMaterialIndex(*mindices);
vertex.setMaterialIndex(*mindices++);
}
}
else if (mbind == PER_VERTEX || mbind == PER_FACE) {
pointDetail.setMaterialIndex(matnr);
vertex.setMaterialIndex(matnr++);
}
else if (mbind == PER_VERTEX_INDEXED || mbind == PER_FACE_INDEXED) {
pointDetail.setMaterialIndex(*mindices);
vertex.setMaterialIndex(*mindices++);
}
if (nbind == PER_VERTEX || nbind == PER_FACE) {
pointDetail.setNormalIndex(normnr);
currnormal = &normals[normnr++];
vertex.setNormal(*currnormal);
}
else if (nbind == PER_FACE_INDEXED || nbind == PER_VERTEX_INDEXED) {
pointDetail.setNormalIndex(*nindices);
currnormal = &normals[*nindices++];
vertex.setNormal(*currnormal);
}
if (tb.isFunction()) {
vertex.setTextureCoords(tb.get(coords->get3(v1), *currnormal));
if (tb.needIndices()) pointDetail.setTextureCoordIndex(tindices ? *tindices++ : texidx++);
}
else if (tbind != NONE) {
pointDetail.setTextureCoordIndex(tindices ? *tindices : texidx);
vertex.setTextureCoords(tb.get(tindices ? *tindices++ : texidx++));
}
pointDetail.setCoordinateIndex(v1);
vertex.setPoint(coords->get3(v1));
this->shapeVertex(&vertex);
DO_VERTEX(v2);
DO_VERTEX(v3);
if (mode != TRIANGLES) {
DO_VERTEX(v4);
if (mode == POLYGON) {
DO_VERTEX(v5);
v1 = viptr < viendptr ? *viptr++ : -1;
while (v1 >= 0) {
DO_VERTEX(v1);
v1 = viptr < viendptr ? *viptr++ : -1;
}
this->endShape();
}
}
faceDetail.incFaceIndex();
if (mbind == PER_VERTEX_INDEXED) {
mindices++;
}
if (nbind == PER_VERTEX_INDEXED) {
nindices++;
}
if (tindices) tindices++;
trinr++;
if (pi == trinr) {
pi = piptr < piendptr ? *piptr++ : -1;
while (pi == 0) {
// It may happen that a part has no triangles
pi = piptr < piendptr ? *piptr++ : -1;
if (mbind == PER_PART)
matnr++;
else if (mbind == PER_PART_INDEXED)
mindices++;
}
trinr = 0;
}
}
if (mode != POLYGON) this->endShape();
if (normalCacheUsed) {
this->readUnlockNormalCache();
}
if (this->vertexProperty.getValue()) {
state->pop();
}
#endif
}
#undef DO_VERTEX
void SoBrepFaceSet::renderHighlight(SoGLRenderAction *action)
{
SoState * state = action->getState();
state->push();
SoLazyElement::setEmissive(state, &this->highlightColor);
SoOverrideElement::setEmissiveColorOverride(state, this, TRUE);
#if 0 // disables shading effect
// sendNormals will be FALSE
SoLazyElement::setDiffuse(state, this,1, &this->highlightColor,&this->colorpacker);
SoOverrideElement::setDiffuseColorOverride(state, this, TRUE);
SoLazyElement::setLightModel(state, SoLazyElement::BASE_COLOR);
#endif
Binding mbind = this->findMaterialBinding(state);
Binding nbind = this->findNormalBinding(state);
const SoCoordinateElement * coords;
const SbVec3f * normals;
const int32_t * cindices;
int numindices;
const int32_t * nindices;
const int32_t * tindices;
const int32_t * mindices;
const int32_t * pindices;
SbBool doTextures;
SbBool normalCacheUsed;
SoMaterialBundle mb(action);
SoTextureCoordinateBundle tb(action, TRUE, FALSE);
doTextures = tb.needCoordinates();
SbBool sendNormals = !mb.isColorOnly() || tb.isFunction();
this->getVertexData(state, coords, normals, cindices,
nindices, tindices, mindices, numindices,
sendNormals, normalCacheUsed);
mb.sendFirst(); // make sure we have the correct material
int32_t id = this->highlightIndex.getValue();
if (id >= this->partIndex.getNum()) {
SoDebugError::postWarning("SoBrepFaceSet::renderHighlight", "highlightIndex out of range");
}
else {
// just in case someone forgot
if (!mindices) mindices = cindices;
if (!nindices) nindices = cindices;
pindices = this->partIndex.getValues(0);
// coords
int length = (int)pindices[id]*4;
int start=0;
for (int i=0;i<id;i++)
start+=(int)pindices[i];
start *= 4;
// normals
if (nbind == PER_VERTEX_INDEXED)
nindices = &(nindices[start]);
else if (nbind == PER_VERTEX)
normals = &(normals[start]);
else
nbind = OVERALL;
// materials
mbind = OVERALL;
doTextures = FALSE;
renderShape(static_cast<const SoGLCoordinateElement*>(coords), &(cindices[start]), length,
&(pindices[id]), 1, normals, nindices, &mb, mindices, &tb, tindices, nbind, mbind, doTextures?1:0);
}
state->pop();
}
void SoBrepFaceSet::renderSelection(SoGLRenderAction *action)
{
int numSelected = this->selectionIndex.getNum();
const int32_t* selected = this->selectionIndex.getValues(0);
if (numSelected == 0) return;
SoState * state = action->getState();
state->push();
SoLazyElement::setEmissive(state, &this->selectionColor);
SoOverrideElement::setEmissiveColorOverride(state, this, TRUE);
#if 0 // disables shading effect
SoLazyElement::setDiffuse(state, this,1, &this->selectionColor,&this->colorpacker);
SoOverrideElement::setDiffuseColorOverride(state, this, TRUE);
SoLazyElement::setLightModel(state, SoLazyElement::BASE_COLOR);
#endif
Binding mbind = this->findMaterialBinding(state);
Binding nbind = this->findNormalBinding(state);
const SoCoordinateElement * coords;
const SbVec3f * normals;
const int32_t * cindices;
int numindices;
const int32_t * nindices;
const int32_t * tindices;
const int32_t * mindices;
const int32_t * pindices;
SbBool doTextures;
SbBool normalCacheUsed;
SoMaterialBundle mb(action);
SoTextureCoordinateBundle tb(action, TRUE, FALSE);
doTextures = tb.needCoordinates();
SbBool sendNormals = !mb.isColorOnly() || tb.isFunction();
this->getVertexData(state, coords, normals, cindices,
nindices, tindices, mindices, numindices,
sendNormals, normalCacheUsed);
mb.sendFirst(); // make sure we have the correct material
// just in case someone forgot
if (!mindices) mindices = cindices;
if (!nindices) nindices = cindices;
pindices = this->partIndex.getValues(0);
// materials
mbind = OVERALL;
doTextures = FALSE;
for (int i=0; i<numSelected; i++) {
int id = selected[i];
if (id >= this->partIndex.getNum()) {
SoDebugError::postWarning("SoBrepFaceSet::renderSelection", "selectionIndex out of range");
break;
}
// coords
int length = (int)pindices[id]*4;
int start=0;
for (int j=0;j<id;j++)
start+=(int)pindices[j];
start *= 4;
// normals
const SbVec3f * normals_s = normals;
const int32_t * nindices_s = nindices;
if (nbind == PER_VERTEX_INDEXED)
nindices_s = &(nindices[start]);
else if (nbind == PER_VERTEX)
normals_s = &(normals[start]);
else
nbind = OVERALL;
renderShape(static_cast<const SoGLCoordinateElement*>(coords), &(cindices[start]), length,
&(pindices[id]), 1, normals_s, nindices_s, &mb, mindices, &tb, tindices, nbind, mbind, doTextures?1:0);
}
state->pop();
}
void SoBrepFaceSet::renderShape(const SoGLCoordinateElement * const vertexlist,
const int32_t *vertexindices,
int num_indices,
const int32_t *partindices,
int num_partindices,
const SbVec3f *normals,
const int32_t *normalindices,
SoMaterialBundle *const materials,
const int32_t *matindices,
SoTextureCoordinateBundle * const texcoords,
const int32_t *texindices,
const int nbind,
const int mbind,
const int texture)
{
int texidx = 0;
const SbVec3f * coords3d = NULL;
coords3d = vertexlist->getArrayPtr3();
const int32_t *viptr = vertexindices;
const int32_t *viendptr = viptr + num_indices;
const int32_t *piptr = partindices;
const int32_t *piendptr = piptr + num_partindices;
int32_t v1, v2, v3, v4, pi;
SbVec3f dummynormal(0,0,1);
int numverts = vertexlist->getNum();
const SbVec3f *currnormal = &dummynormal;
if (normals) currnormal = normals;
int matnr = 0;
int trinr = 0;
pi = piptr < piendptr ? *piptr++ : -1;
while (pi == 0) {
// It may happen that a part has no triangles
pi = piptr < piendptr ? *piptr++ : -1;
if (mbind == PER_PART)
matnr++;
else if (mbind == PER_PART_INDEXED)
matindices++;
}
glBegin(GL_TRIANGLES);
while (viptr + 2 < viendptr) {
v1 = *viptr++;
v2 = *viptr++;
v3 = *viptr++;
// This test is for robustness upon buggy data sets
if (v1 < 0 || v2 < 0 || v3 < 0 ||
v1 >= numverts || v2 >= numverts || v3 >= numverts) {
break;
}
v4 = viptr < viendptr ? *viptr++ : -1;
(void)v4;
/* vertex 1 *********************************************************/
if (mbind == PER_PART) {
if (trinr == 0)
materials->send(matnr++, TRUE);
}
else if (mbind == PER_PART_INDEXED) {
if (trinr == 0)
materials->send(*matindices++, TRUE);
}
else if (mbind == PER_VERTEX || mbind == PER_FACE) {
materials->send(matnr++, TRUE);
}
else if (mbind == PER_VERTEX_INDEXED || mbind == PER_FACE_INDEXED) {
materials->send(*matindices++, TRUE);
}
if (normals) {
if (nbind == PER_VERTEX || nbind == PER_FACE) {
currnormal = normals++;
glNormal3fv((const GLfloat*)currnormal);
}
else if (nbind == PER_VERTEX_INDEXED || nbind == PER_FACE_INDEXED) {
currnormal = &normals[*normalindices++];
glNormal3fv((const GLfloat*)currnormal);
}
}
if (texture) {
texcoords->send(texindices ? *texindices++ : texidx++,
vertexlist->get3(v1),
*currnormal);
}
glVertex3fv((const GLfloat*) (coords3d + v1));
/* vertex 2 *********************************************************/
if (mbind == PER_VERTEX)
materials->send(matnr++, TRUE);
else if (mbind == PER_VERTEX_INDEXED)
materials->send(*matindices++, TRUE);
if (normals) {
if (nbind == PER_VERTEX) {
currnormal = normals++;
glNormal3fv((const GLfloat*)currnormal);
}
else if (nbind == PER_VERTEX_INDEXED) {
currnormal = &normals[*normalindices++];
glNormal3fv((const GLfloat*)currnormal);
}
}
if (texture) {
texcoords->send(texindices ? *texindices++ : texidx++,
vertexlist->get3(v2),
*currnormal);
}
glVertex3fv((const GLfloat*) (coords3d + v2));
/* vertex 3 *********************************************************/
if (mbind == PER_VERTEX)
materials->send(matnr++, TRUE);
else if (mbind == PER_VERTEX_INDEXED)
materials->send(*matindices++, TRUE);
if (normals) {
if (nbind == PER_VERTEX) {
currnormal = normals++;
glNormal3fv((const GLfloat*)currnormal);
}
else if (nbind == PER_VERTEX_INDEXED) {
currnormal = &normals[*normalindices++];
glNormal3fv((const GLfloat*)currnormal);
}
}
if (texture) {
texcoords->send(texindices ? *texindices++ : texidx++,
vertexlist->get3(v3),
*currnormal);
}
glVertex3fv((const GLfloat*) (coords3d + v3));
if (mbind == PER_VERTEX_INDEXED)
matindices++;
if (nbind == PER_VERTEX_INDEXED)
normalindices++;
if (texture && texindices) {
texindices++;
}
trinr++;
if (pi == trinr) {
pi = piptr < piendptr ? *piptr++ : -1;
while (pi == 0) {
// It may happen that a part has no triangles
pi = piptr < piendptr ? *piptr++ : -1;
if (mbind == PER_PART)
matnr++;
else if (mbind == PER_PART_INDEXED)
matindices++;
}
trinr = 0;
}
}
glEnd();
}
SoDetail * SoBrepFaceSet::createTriangleDetail(SoRayPickAction * action,
const SoPrimitiveVertex * v1,
const SoPrimitiveVertex * v2,
const SoPrimitiveVertex * v3,
SoPickedPoint * pp)
{
SoDetail* detail = inherited::createTriangleDetail(action, v1, v2, v3, pp);