CircleShape::CircleShape(std::string command, std::string name)
{
_type = SimpleShape::CIRCLE;
BasicShape::setName(name);
_numFaces = 20;
_vertices = new osg::Vec3Array(_numFaces + 2);
_colors = new osg::Vec4Array(_numFaces + 2);
setPosition(osg::Vec3(0.0, 0.0, 0.0), 1.0);
setColor(osg::Vec4(1.0, 0.0, 0.0, 1.0),osg::Vec4(0.0, 1.0, 0.0, 1.0));
update(command);
setVertexArray(_vertices);
setColorArray(_colors);
setColorBinding(osg::Geometry::BIND_PER_VERTEX);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN,0,_numFaces + 2));
osg::StateSet* state = getOrCreateStateSet();
state->setMode(GL_BLEND, osg::StateAttribute::ON);
state->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
//osg::Material* mat = new osg::Material();
//mat->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
//state->setAttributeAndModes(mat, osg::StateAttribute::ON);
}
void OpenGLRenderer::drawIndexed(Primitive primitive, const TexturedVertex * vertices, size_t nvertices, unsigned short * indices, size_t nindices) {
beforeDraw<TexturedVertex>();
if(useVertexArrays && shader) {
glBindBuffer(GL_ARRAY_BUFFER, GL_NONE);
setVertexArray(vertices, vertices);
glDrawRangeElements(arxToGlPrimitiveType[primitive], 0, nvertices - 1, nindices, GL_UNSIGNED_SHORT, indices);
} else {
glBegin(arxToGlPrimitiveType[primitive]);
for(size_t i = 0; i < nindices; i++) {
renderVertex(vertices[indices[i]]);
}
glEnd();
}
CHECK_GL;
}
//==============================================================================
void LineSegmentShapeDrawable::refresh(bool firstTime)
{
if(mLineSegmentShape->getDataVariance() == dart::dynamics::Shape::STATIC)
setDataVariance(osg::Object::STATIC);
else
setDataVariance(osg::Object::DYNAMIC);
const std::vector<Eigen::Vector3d>& vertices =
mLineSegmentShape->getVertices();
const Eigen::aligned_vector<Eigen::Vector2i>& connections =
mLineSegmentShape->getConnections();
if( mLineSegmentShape->checkDataVariance(dart::dynamics::Shape::DYNAMIC_ELEMENTS)
|| firstTime)
{
osg::ref_ptr<osg::DrawElementsUInt> elements =
new osg::DrawElementsUInt(GL_LINES);
elements->reserve(2*connections.size());
for(size_t i=0; i < connections.size(); ++i)
{
const Eigen::Vector2i& c = connections[i];
elements->push_back(c[0]);
elements->push_back(c[1]);
}
addPrimitiveSet(elements);
}
if( mLineSegmentShape->checkDataVariance(dart::dynamics::Shape::DYNAMIC_VERTICES)
|| mLineSegmentShape->checkDataVariance(dart::dynamics::Shape::DYNAMIC_ELEMENTS)
|| firstTime)
{
if(mVertices->size() != vertices.size())
mVertices->resize(vertices.size());
for(size_t i=0; i<vertices.size(); ++i)
(*mVertices)[i] = eigToOsgVec3(vertices[i]);
setVertexArray(mVertices);
}
if( mLineSegmentShape->checkDataVariance(dart::dynamics::Shape::DYNAMIC_COLOR)
|| firstTime)
{
if(mColors->size() != 1)
mColors->resize(1);
(*mColors)[0] = eigToOsgVec4(mLineSegmentShape->getRGBA());
setColorArray(mColors, osg::Array::BIND_OVERALL);
}
}
//------------------------------------------------------------------------------
void HudTextureElement::updateVb()
{
Vector2d pos;
float size;
getPositionAndSize(pos, size);
osg::Vec3Array * vertex = new osg::Vec3Array(4); // vec3 or computeBounds will complain
setVertexArray(vertex);
(*vertex)[0].set(pos.x_, pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size, 0.0f);
}
Widget::Widget(const std::string& name, point_type w, point_type h):
_parent (0),
_index (0),
_layer (LAYER_LOW),
_padLeft (0.0f),
_padRight (0.0f),
_padTop (0.0f),
_padBottom (0.0f),
_valign (VA_CENTER),
_halign (HA_CENTER),
_coordMode (CM_ABSOLUTE),
_canFill (false),
_canClone (true),
_isManaged (false),
_isStyled (false),
_minWidth (0.0f),
_minHeight (0.0f) {
_name = name.size() ? name : generateRandomName("Widget");
if(!_norms.valid()) {
_norms = new PointArray(1);
(*_norms)[0].set(0.0f, 0.0f, 1.0f);
(*_norms)[0].normalize();
}
TexCoordArray* texs = new TexCoordArray(4);
// Fill our texture coordinates with null stuff for now, since we aren't using them
// until an Image is set at some later point.
std::fill(texs->begin(), texs->end(), osg::Vec2(0.0f, 0.0f));
setUseDisplayList(false);
setDataVariance(osg::Object::DYNAMIC);
setVertexArray(new PointArray(4));
setColorArray(new ColorArray(4));
setNormalArray(_norms.get());
setTexCoordArray(0, texs);
setNormalBinding(osg::Geometry::BIND_OVERALL);
setColorBinding(osg::Geometry::BIND_PER_VERTEX);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS, 0, 4));
setDimensions(0.0f, 0.0f, w, h);
setColor(1.0f, 1.0f, 1.0f, 1.0f);
}
void HeightmapShapeDrawable<S>::refresh(bool /*firstTime*/)
{
if (mHeightmapShape->getDataVariance() == dynamics::Shape::STATIC)
setDataVariance(::osg::Object::STATIC);
else
setDataVariance(::osg::Object::DYNAMIC);
// Row major matrix where top left corner is the height at (0, 0), and bottom
// right corner is the height at (rows, -cols) in (x, y) coordinates.
const auto& heightmap = mHeightmapShape->getHeightField();
// This function is called whenever the heightmap version is increased, and
// the heightmap could be updated in the version up. So we always update the
// heightmap.
{
assert(mElements);
assert(mNormals);
setVertices<S>(
heightmap,
*mVertices,
*mElements,
*mNormals,
mHeightmapShape->getScale());
addPrimitiveSet(mElements);
setVertexArray(mVertices);
setNormalArray(mNormals, ::osg::Array::BIND_PER_VERTEX);
}
// This function is called whenever the heightmap version is increased, and
// the color could be updated in the version up. So we always update the
// color.
{
if (mColors->size() != 1)
mColors->resize(1);
(*mColors)[0] = eigToOsgVec4d(mVisualAspect->getRGBA());
setColorArray(mColors, ::osg::Array::BIND_OVERALL);
}
}
WidgetBorder::WidgetBorder(const Widget & widget) : widget(widget)
{
if (osg::Vec3Array * data = new osg::Vec3Array(4))
{
const Rect & rect = widget.getRect();
const int padding = widget.getBorderPadding();
const float z = widget.getZ();
spdlog::get("log")->info("initializing WidgetBorder with rect {}, {}, {}, {}", rect.x1, rect.y1, rect.x2, rect.y2);
(*data)[0].set(rect.x1 - padding, rect.y2 + padding, z);
(*data)[1].set(rect.x1 - padding, rect.y1 - padding, z);
(*data)[2].set(rect.x2 + padding, rect.y1 - padding, z);
(*data)[3].set(rect.x2 + padding, rect.y2 + padding, z);
setVertexArray(data);
}
if (osg::Vec3Array * data = new osg::Vec3Array(1))
{
(*data)[0].set(0.f, 0.f, 1.f);
setNormalArray(data, osg::Array::BIND_OVERALL);
}
if (osg::Vec4Array * data = new osg::Vec4Array(1))
{
/*
const osg::Color & color = widget.getBorderColor();
(*data)[0].set(widget.getBorderColor().r, widget.getBorderColor().g, widget.getBorderColor().b, widget.getBorderColor().a);
*/
(*data)[0].set(1.f, 1.f, 1.f, 1.f);
setColorArray(data, osg::Array::BIND_OVERALL);
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINE_LOOP, 0, 4));
// TODO: getOrCreateStateSet()->setAttribute(new osg::LineWidth(widget.getBorderPadding()));
}
SomePointsRenderer(SomePointsGenerator*_generator)
{
setUseVertexBufferObjects(true);
osg::Vec4Array* vAry2 = new osg::Vec4Array;
vAry2->resize(_generator->getNumPrimitivesGenerated());
setVertexArray(vAry2);
addPrimitiveSet( new osg::DrawArrays( GL_LINES, 0,_generator->getNumPrimitivesGenerated()));
osg::StateSet* sset = getOrCreateStateSet();
///hacking rendering order
/*osg::BlendFunc* bf = new
osg::BlendFunc(osg::BlendFunc::SRC_ALPHA,
osg::BlendFunc::ONE_MINUS_SRC_ALPHA );
sset->setAttributeAndModes(bf);*/
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
getOrCreateVertexBufferObject();
sset->setAttribute( createRenderShader() );
}
SomePointsGenerator::SomePointsGenerator():osg::Geometry()
{
setUseVertexBufferObjects(true);
osg::StateSet* sset = getOrCreateStateSet();
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
vAry = new osg::Vec4Array;;
vAry->push_back( osg::Vec4(0,0,0,1) );
vAry->push_back( osg::Vec4(0,1,0,1) );
vAry->push_back( osg::Vec4(1,0,0,1) );
vAry->push_back( osg::Vec4(1,1,0,1 ));
addPrimitiveSet( new osg::DrawArrays( GL_POINTS, 0, vAry->size() ) );
setVertexArray( vAry );
_program=createGeneratorShader() ;
sset->setAttribute(_program );
// a generic cyclic animation value
osg::Uniform* u_anim1( new osg::Uniform( "u_anim1", 0.9f ) );
u_anim1->setUpdateCallback( new SineAnimation( 4, 0.5, 0.5 ) );
sset->addUniform( u_anim1 );
}
SomePoints()
{
osg::Vec4Array* cAry = new osg::Vec4Array;
setColorArray( cAry, osg::Array::BIND_OVERALL );
cAry->push_back( osg::Vec4(1,1,1,1) );
osg::Vec3Array* vAry = new osg::Vec3Array;
setVertexArray( vAry );
vAry->push_back( osg::Vec3(0,0,0) );
vAry->push_back( osg::Vec3(0,1,0) );
vAry->push_back( osg::Vec3(1,0,0) );
vAry->push_back( osg::Vec3(1,1,0) );
vAry->push_back( osg::Vec3(0,0,1) );
vAry->push_back( osg::Vec3(0,1,1) );
vAry->push_back( osg::Vec3(1,0,1) );
vAry->push_back( osg::Vec3(1,1,1) );
addPrimitiveSet( new osg::DrawArrays( GL_POINTS, 0, vAry->size() ) );
osg::StateSet* sset = getOrCreateStateSet();
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
// if things go wrong, fall back to big points
osg::Point* p = new osg::Point;
p->setSize(6);
sset->setAttribute( p );
#ifdef ENABLE_GLSL
sset->setAttribute( createShader() );
// a generic cyclic animation value
osg::Uniform* u_anim1( new osg::Uniform( "u_anim1", 0.0f ) );
u_anim1->setUpdateCallback( new SineAnimation( 4, 0.5, 0.5 ) );
sset->addUniform( u_anim1 );
#endif
}
void Ellipsoid::subDraw()
{
computeAssistVar();
getPrimitiveSetList().clear();
osg::ref_ptr<osg::Vec3Array> vertexArr = new osg::Vec3Array;
osg::ref_ptr<osg::Vec3Array> normalArr = new osg::Vec3Array;
setVertexArray(vertexArr);
setNormalArray(normalArr, osg::Array::BIND_PER_VERTEX);
osg::ref_ptr<osg::Vec4Array> colArr = new osg::Vec4Array();
colArr->push_back(m_color);
setColorArray(colArr, osg::Array::BIND_OVERALL);
bool isFull = osg::equivalent(m_angle, 2 * M_PI, GetEpsilon());
if (isFull)
{
m_angle = 2 * M_PI;
}
osg::Vec3 bottomNormal = -m_aLen;
bottomNormal.normalize();
osg::Quat localToWold;
localToWold.makeRotate(osg::Z_AXIS, -bottomNormal);
osg::Vec3 xVec = localToWold * osg::X_AXIS;
osg::Vec3 yVec = xVec ^ bottomNormal;
int hCount = m_bDivision;
double hIncAng = 2 * M_PI / hCount;
osg::Quat hQuat(hIncAng, bottomNormal);
int vCount = (int)ceil(m_angle / (2 * M_PI / m_aDivision));
if (vCount & 1) // 如果是奇数，则变成偶数
++vCount;
double vIncAng = m_angle / vCount;
double currAngle = m_angle / 2.0;
double b = m_bRadius;
double a = m_aLen.length();
osg::Vec3 vec1(b * sin(currAngle), 0, a * cos(currAngle));
vec1 = localToWold * vec1;
osg::Vec3 normal1(sin(currAngle) / b, 0, cos(currAngle) / a);
normal1 = localToWold * normal1;
normal1.normalize();
currAngle -= vIncAng;
osg::Vec3 vec2(b * sin(currAngle), 0, a * cos(currAngle));
vec2 = localToWold * vec2;
osg::Vec3 normal2(sin(currAngle) / b, 0, cos(currAngle) / a);
normal2 = localToWold * normal2;
normal2.normalize();
const GLint first = vertexArr->size();
for (int i = 0; i < vCount / 2; ++i)
{
osg::Vec3 hVec1 = vec1;
osg::Vec3 hVec2 = vec2;
osg::Vec3 hNormal1 = normal1;
osg::Vec3 hNormal2 = normal2;
const size_t hFirst = vertexArr->size();
for (int j = 0; j < hCount; ++j)
{
vertexArr->push_back(m_center + hVec1);
vertexArr->push_back(m_center + hVec2);
normalArr->push_back(hNormal1);
normalArr->push_back(hNormal2);
hVec1 = hQuat * hVec1;
hVec2 = hQuat * hVec2;
hNormal1 = hQuat * hNormal1;
hNormal2 = hQuat * hNormal2;
}
vertexArr->push_back((*vertexArr)[hFirst]);
vertexArr->push_back((*vertexArr)[hFirst + 1]);
normalArr->push_back((*normalArr)[hFirst]);
normalArr->push_back((*normalArr)[hFirst + 1]);
vec1 = vec2;
currAngle -= vIncAng;
vec2.set(b * sin(currAngle), 0, a * cos(currAngle));
vec2 = localToWold * vec2;
normal1 = normal2;
normal2.set(sin(currAngle) / b, 0, cos(currAngle) / a);
normal2 = localToWold * normal2;
normal2.normalize();
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP, first, vertexArr->size() - first));
if (!isFull && m_bottomVis)
{
const GLint first = vertexArr->size();
currAngle = m_angle / 2.0;
osg::Vec3 vec1(b * sin(currAngle), 0, a * cos(currAngle));
vec1 = localToWold * vec1;
osg::Vec3 vec2(0, 0, a * cos(currAngle));
vec2 = localToWold * vec2;
vertexArr->push_back(m_center + vec2);
normalArr->push_back(bottomNormal);
for (int i = 0; i < hCount; ++i)
{
vertexArr->push_back(m_center + vec1);
normalArr->push_back(bottomNormal);
vec1 = hQuat * vec1;
}
vertexArr->push_back((*vertexArr)[first + 1]);
normalArr->push_back(bottomNormal);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN, first, vertexArr->size() - first));
}
}
void SCylinder::subDraw()
{
getPrimitiveSetList().clear();
osg::ref_ptr<osg::Vec3Array> vertexArr = new osg::Vec3Array;
osg::ref_ptr<osg::Vec3Array> normalArr = new osg::Vec3Array;
setVertexArray(vertexArr);
setNormalArray(normalArr, osg::Array::BIND_PER_VERTEX);
osg::ref_ptr<osg::Vec4Array> colArr = new osg::Vec4Array();
colArr->push_back(m_color);
setColorArray(colArr, osg::Array::BIND_OVERALL);
int count = (int)getDivision();
double incAng = 2 * M_PI / count;
osg::Vec3 topNormal = m_height;
topNormal.normalize();
double angleCos = m_bottomNormal * (-topNormal) / m_bottomNormal.length() / topNormal.length();
double angle = acos(angleCos);
double a = m_radius;
double b = m_radius / sin(M_PI_2 - angle);
osg::Vec3 vec = m_bottomNormal ^ topNormal;
vec.normalize();
osg::Quat bottomQuat(incAng, m_bottomNormal);
double currAngle = 0;
osg::Quat localToWorldQuat;
localToWorldQuat.makeRotate(osg::Z_AXIS, m_bottomNormal);
osg::Vec3 yAxis = localToWorldQuat * osg::Y_AXIS;
osg::Quat localToWorldQuat2;
localToWorldQuat2.makeRotate(yAxis, vec);
localToWorldQuat *= localToWorldQuat2;
osg::Vec3 bottomVec(b * sin(currAngle), a * cos(currAngle), 0);
bottomVec = localToWorldQuat * bottomVec;
//bottomVec = localToWorldQuat2 * bottomVec;
osg::Quat topQuat(incAng, topNormal);
osg::Vec3 topVec = vec * m_radius;
osg::Vec3 topCenter = m_org + m_height;
size_t first = vertexArr->size();
for (int i = 0; i < count; ++i)
{
vertexArr->push_back(topCenter + topVec);
vertexArr->push_back(m_org + bottomVec);
normalArr->push_back(topVec);
normalArr->back().normalize();
normalArr->push_back(normalArr->back());
currAngle += incAng;
bottomVec.set(b * sin(currAngle), a * cos(currAngle), 0);
bottomVec = localToWorldQuat * bottomVec;
//bottomVec = localToWorldQuat2 * bottomVec;
topVec = topQuat * topVec;
}
vertexArr->push_back((*vertexArr)[first]);
vertexArr->push_back((*vertexArr)[first + 1]);
normalArr->push_back((*normalArr)[first]);
normalArr->push_back((*normalArr)[first + 1]);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_STRIP, first, vertexArr->size() - first));
if (m_bottomVis)
{
first = vertexArr->size();
vertexArr->push_back(m_org);
normalArr->push_back(m_bottomNormal);
for (int i = count; i >= 0; --i)
{
vertexArr->push_back((*vertexArr)[i * 2 + 1]);
normalArr->push_back(m_bottomNormal);
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN, first, vertexArr->size() - first));
}
if (m_topVis)
{
first = vertexArr->size();
vertexArr->push_back(topCenter);
normalArr->push_back(topNormal);
for (int i = 0; i < count + 1; ++i)
{
vertexArr->push_back((*vertexArr)[i * 2]);
normalArr->push_back(topNormal);
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN, first, vertexArr->size() - first));
}
}
void SuperShape3D::generate(void)
{
const float lon_step = 2 * osg::PI / _resolution;
const float lat_step = osg::PI / _resolution;
const float epsilon = std::numeric_limits<float>::epsilon();
osg::Vec3Array* vAry = new osg::Vec3Array;
vAry->reserve( _resolution * _resolution * 6 );
setVertexArray( vAry );
osg::Vec4Array* cAry = new osg::Vec4Array;
setColorArray( cAry );
setColorBinding( osg::Geometry::BIND_OVERALL );
cAry->push_back( osg::Vec4(1,1,1,1) );
for( int lat_count = 0; lat_count <_resolution; ++lat_count )
{
float phi1 = static_cast<float>(lat_count * lat_step - osg::PI_2);
float phi2 = phi1 + lat_step;
for( int lon_count = 0; lon_count < _resolution; ++lon_count )
{
float theta1 = static_cast<float>(lon_count * lon_step - osg::PI);
float theta2 = theta1 + lon_step;
bool tooSmall = false;
float r1_1 = SS1(theta1);
if(fabs(r1_1) < epsilon) tooSmall = true;
float r2_1 = SS2(phi1);
if(fabs(r2_1) < epsilon) tooSmall = true;
float r1_2 = SS1(theta2);
if(fabs(r1_2) < epsilon) tooSmall = true;
float r2_2 = SS2(phi2);
if(fabs(r2_2) < epsilon) tooSmall = true;
if( !tooSmall )
{
r1_1 = 1.0f / r1_1;
r1_2 = 1.0f / r1_2;
r2_1 = 1.0f / r2_1;
r2_2 = 1.0f / r2_2;
osg::Vec3 pa = osg::Vec3(r1_1*cosf(theta1)*r2_1*cosf(phi1), r1_1*sinf(theta1)*r2_1*cosf(phi1), r2_1*sinf(phi1));
osg::Vec3 pb = osg::Vec3(r1_2*cosf(theta2)*r2_1*cosf(phi1), r1_2*sinf(theta2)*r2_1*cosf(phi1), r2_1*sinf(phi1));
osg::Vec3 pc = osg::Vec3(r1_2*cosf(theta2)*r2_2*cosf(phi2), r1_2*sinf(theta2)*r2_2*cosf(phi2), r2_2*sinf(phi2));
osg::Vec3 pd = osg::Vec3(r1_1*cosf(theta1)*r2_2*cosf(phi2), r1_1*sinf(theta1)*r2_2*cosf(phi2), r2_2*sinf(phi2));
if((pa - pb).length() > epsilon && (pa - pc).length() > epsilon)
{
vAry->push_back( pa );
vAry->push_back( pb );
vAry->push_back( pc );
}
if((pc - pd).length() > epsilon && (pc - pa).length() > epsilon)
{
vAry->push_back( pc );
vAry->push_back( pd );
vAry->push_back( pa );
}
}
}
}
addPrimitiveSet( new osg::DrawArrays( GL_TRIANGLES, 0, vAry->size() ) );
FacetingVisitor::facet( *this );
}
chaos::GameObject::GameObject(chaos::Renderer* ren, std::string vaoId, std::string shaderId)
:renderer(ren), material(glm::vec4(1, 0.1, 0.4, 1.0), glm::vec4(0,1,0,1), 32)
{
setVertexArray(vaoId);
setShader(shaderId);
}
int loadObj(const char *filename, OBJ *obj){
/* buffers for data */
GLfloat **normalBuffer, **textureBuffer, **vertexBuffer = NULL;
/* texture and normal index buffers */
GLint *indexBuffer, *normalIndexBuffer, *textureIndexBuffer = NULL;
/* counters */
GLint index = 0;
GLint texture = 0;
GLint normal = 0;
GLint vertex = 0;
/* record size required for index and vertex buffers */
GLint indexSize = 0;
GLint normalSize = 0;
GLint textureSize = 0;
GLint vertexSize = 0;
/* 1. open and get sizes required for index and vertex arrays texture and normal sizes
can be calculated easily from these when required
*/
char *textHeaderLine;
int headerLineCount = 0;
char line[64];
/* 1. loading file */
FILE *file;
if((file = fopen(filename, "r")) != NULL){
while(fgets(line,64,file)!= NULL){
if(line[0] == 'v'){
/* vertex */
if(line[1] == ' '){ vertexSize++; }
/* normals */
if(line[1] == 'n'){ normalSize++; }
/* texture */
if(line[1] == 't'){ textureSize++; }
}
/* faces - three triangles are refereced per line */
if(line[0] == 'f' && line[1] == ' '){ indexSize += 3; }
}
}else{
fprintf(stderr, "Error: Unable to read file %s", filename);
exit(0);
}
if(indexSize == 0 || vertexSize == 0){
fprintf(stderr, "Error: There are no indices or vertices in %s!", filename);
exit(0);
}
/* ALLOCATE MEMORY FOR LOCAL ARRAY BUFFERS */
if(normalSize > 0){
normalBuffer = (GLfloat **)malloc(sizeof(GLfloat *) * normalSize);
int i = 0;
for(i = 0; i < normalSize; i++){
normalBuffer[i] = (GLfloat *)malloc(sizeof(GLfloat) * 3);
if(i == normalSize - 1){
printf("Normal Buffer allocated! %d\n", normalSize);
}
}
normalIndexBuffer = (GLint *)malloc(indexSize * sizeof(GLint));
}
if(textureSize > 0){
textureBuffer = (GLfloat **)malloc(sizeof(GLfloat *) * textureSize);
int t = 0;
for(t = 0; t < textureSize; t++){
textureBuffer[t] = (GLfloat *)malloc(sizeof(GLfloat) * 2);
if(t == textureSize - 1){
printf("Texture Buffer allocated! %d\n", textureSize);
}
}
textureIndexBuffer = (GLint *)malloc(indexSize * sizeof(GLint));
}
//these should always be present - mandatory
if(vertexSize > 0 && indexSize > 0){
vertexBuffer = (GLfloat **)malloc(sizeof(GLfloat *) * vertexSize);
int v = 0;
for(v = 0; v < vertexSize; v++){
vertexBuffer[v] = (GLfloat *)malloc(sizeof(GLfloat) * 3);
if(v == (vertexSize - 1)){
printf("Vertex Buffer allocated! %d\n", vertexSize);
}
}
if(indexSize > 0){
printf("indexSize %d\n", indexSize * sizeof(GLint));
indexBuffer = (GLint *)malloc(indexSize * sizeof(GLint));
}else{
fprintf(stderr,"File does not appear to have any indices!\n");
exit(0);
}
}else{
fprintf(stderr,"File does not appear to have any vertices!\n");
//printf("vertexSize %d\n", vertexSize);
exit(0);
}
/* 2. now open and read data */
rewind(file);
while(fgets(line,64,file)!= NULL){
// NULL if char not found
if((textHeaderLine = strchr(line, '#')) != NULL){
printf("Header Line: %s\n", textHeaderLine);
headerLineCount++;
}
if(line[0] == 'v' && line[1] == ' '){
//knock the first char out so we can use sscanf
line[0] = ' ';
float v[3];
sscanf(line," %f %f %f", &v[0], &v[1], &v[2]);
vertexBuffer[vertex][0] = v[0];
vertexBuffer[vertex][1] = v[1];
vertexBuffer[vertex][2] = v[2];
#if OBJ_DEBUG == 1
printf("vertex buffer: %f %f %f\n", vertexBuffer[vertex][0],vertexBuffer[vertex][1],vertexBuffer[vertex][2]);
#endif
vertex++;
}
/* normals */
if(line[0] == 'v' && line[1] == 'n'){
//knock the first char out so we can use sscanf
line[0] = ' ';
line[1] = ' ';
float v[3];
sscanf(line, "%f %f %f", &v[0], &v[1], &v[2]);
normalBuffer[normal][0] = v[0];
normalBuffer[normal][1] = v[1];
normalBuffer[normal][2] = v[2];
#if OBJ_DEBUG == 1
printf("normal buffer: %f %f %f\n", normalBuffer[normal][0],normalBuffer[normal][1],normalBuffer[normal][2]);
#endif
normal++;
}
// texture coords
if(line[0] == 'v' && line[1] == 't'){
//knock the first char out so we can use sscanf
line[0] = ' ';
line[1] = ' ';
float t[2];
sscanf(line, "%f %f", &t[0], &t[1]);
textureBuffer[texture][0] = t[0];
textureBuffer[texture][1] = t[1];
texture++;
}
/* faces eg. f 3/3/13 7/7/25 5/5/19 1/1/7
1st index - vertex
2nd normal
3rd texture coord
Blender: 3 nums instead??
- no texture or normals by default
*/
if(line[0] == 'f' && line[1] == ' '){
line[0] = ' ';
/* only vertices and indices so each line is going to 3 indices only */
if(textureSize == 0 && normalSize == 0){
int f[3];
sscanf(line, "%d %d %d",&f[0], &f[1], &f[2]);
//printf("%d %d %d\n", f[0], f[1], f[2]);
indexBuffer[index + 0] = --f[0];
indexBuffer[index + 1] = --f[1];
indexBuffer[index + 2] = --f[2];
index += 3;
}
/* normals but NO texture */
if(textureSize == 0 && normalSize > 0){
int f[7];
sscanf(line, "%d//%d %d//%d %d//%d",&f[0], &f[1], &f[2], &f[3], &f[4], &f[5]);
indexBuffer[index + 0] = --f[0];
indexBuffer[index + 1] = --f[2];
indexBuffer[index + 2] = --f[4];
normalIndexBuffer[index + 0] = --f[1];
normalIndexBuffer[index + 1] = --f[3];
normalIndexBuffer[index + 2] = --f[5];
#if OBJ_DEBUG == 1
printf("index: %d %d %d\n", indexBuffer[index + 0],indexBuffer[index + 1],indexBuffer[index + 2]);
#endif
#if OBJ_DEBUG == 1
printf("index: %d %d %d\n", normalIndexBuffer[index + 0], normalIndexBuffer[index + 1], normalIndexBuffer[index + 2]);
#endif
index += 3;
}
/* find evidence for this one - format from logic alone */
/*
if(textureSize > 0 && normalSize == 0){
int f[7];
sscanf(line, "%d/%d %d/%d %d/%d",&f[0], &f[1], &f[2], &f[3], &f[4], &f[5]);
indexBuffer[index + 0] = --f[0];
indexBuffer[index + 1] = --f[1];
indexBuffer[index + 2] = --f[2];
index += 3;
}
if(textureSize > 0 && normalSize > 0){
int f[9];
printf("here");
sscanf(line, "%d/%d/%d %d/%d/%d %d/%d/%d",&f[0], &f[1], &f[2], &f[3], &f[4], &f[5], &f[6], &f[7], &f[8]);
indexBuffer[index + 0] = --f[0];
indexBuffer[index + 1] = --f[3];
indexBuffer[index + 2] = --f[6];
textureIndexBuffer[index + 0] = --f[1];
textureIndexBuffer[index + 1] = --f[4];
textureIndexBuffer[index + 2] = --f[7];
normalIndexBuffer[index + 0] = --f[2];
normalIndexBuffer[index + 1] = --f[5];
normalIndexBuffer[index + 2] = --f[8];
//printf("%d %d %d\n", textureIndexBuffer[index + 0],textureIndexBuffer[index + 1],textureIndexBuffer[index + 2]);
index += 3;
}
*/
}
}
/* set index and vertex to struct */
setIndexArray(indexSize, indexBuffer, obj);
setVertexArray(indexSize, vertexBuffer, obj);
/* free index buffer as this is now in obj struct */
/*
if(indexBuffer){
while(i < indexSize * 3){
free(indexBuffer[i]);
i++;
}
// free(indexBuffer);
indexBuffer = NULL;
}
*/
/* free vertex buffer as this is now in obj struct */
/*
if(vertexBuffer){
while(i < vertexSize){
free(vertexBuffer[i]);
i++;
}
// free(vertexBuffer);
vertexBuffer = NULL;
}
*/
/*
if(normalSize > 0){
setNormalIndexArray(indexSize, normalIndexBuffer, obj);
if(normalIndexBuffer){
free(normalIndexBuffer);
normalIndexBuffer = NULL;
}
setNormalArray(indexSize, normalBuffer, obj);
if(vertexBuffer){
free(normalBuffer);
normalBuffer = NULL;
}
*/
/* only set if we have values to set */
/*
if(textureSize > 0){
setTextureArray((textureSize * 2), textureIndexBuffer, &textureBuffer, obj);
free(textureIndexBuffer);
int t = 0;
while(t < textureSize){
free(textureBuffer[t]);
t++;
}
free(textureBuffer);
}
*/
fclose(file);
return 0;
}
//------------------------------------------------------------------------------
void HudBar::updateVb()
{
// Recreate buffers to reflect new size
osg::Vec3Array * vertex = new osg::Vec3Array(4); // vec3 or computeBounds will complain
setVertexArray(vertex);
osg::Vec2Array* texcoord = new osg::Vec2Array(4);
setTexCoordArray(0,texcoord);
Vector2d pos;
float size;
getPositionAndSize(pos, size);
switch (fill_direction_)
{
case HBFD_LEFT_RIGHT:
(*vertex)[0].set(pos.x_, pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_*value_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_*value_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size, 0.0f);
(*texcoord)[0].set(0,0);
(*texcoord)[1].set(value_,0);
(*texcoord)[2].set(value_,1);
(*texcoord)[3].set(0,1);
break;
case HBFD_RIGHT_LEFT:
(*vertex)[0].set(pos.x_+size*aspect_ratio_*(1.0f-value_), pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_+size*aspect_ratio_*(1.0f-value_), pos.y_+size, 0.0f);
(*texcoord)[0].set(1-value_, 0);
(*texcoord)[1].set(1, 0);
(*texcoord)[2].set(1, 1);
(*texcoord)[3].set(1-value_, 1);
break;
case HBFD_TOP_DOWN:
(*vertex)[0].set(pos.x_, pos.y_+size*(1.0f-value_), 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_+size*(1.0f-value_), 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size, 0.0f);
(*texcoord)[0].set(0,1-value_);
(*texcoord)[1].set(1,1-value_);
(*texcoord)[2].set(1,1);
(*texcoord)[3].set(0,1);
break;
case HBFD_BOTTOM_UP:
(*vertex)[0].set(pos.x_, pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size*value_, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size*value_, 0.0f);
(*texcoord)[0].set(0,0);
(*texcoord)[1].set(1,0);
(*texcoord)[2].set(1,value_);
(*texcoord)[3].set(0,value_);
break;
}
}
void LaserScanLine::updateVertices()
{
UrgToOsg::getOsg2DPoints(&urg, vertices);
setVertexArray(vertices);
}
osgToy::Polyhedron::Polyhedron()
{
setVertexArray( new osg::Vec3Array );
setNormalArray( new osg::Vec3Array );
setColorArray( new osg::Vec4Array );
}