/** This creates the wireframe PickBox around the widget.
Volume vertex names:
<PRE>
4____ 7 y
/___ /| |
0| 3| | |___x
| 5 | /6 /
|/___|/ z
1 2
</PRE>
*/
Geometry *PickBox::createWireframe(const Vec4 &color)
{
Geometry *geom = new Geometry();
updateVertices(geom);
// Set colors:
Vec4Array *colors = new Vec4Array();
colors->push_back(color);
geom->setColorArray(colors);
geom->setColorBinding(Geometry::BIND_OVERALL);
// Set normals:
Vec3Array *normals = new Vec3Array();
normals->push_back(Vec3(0.0f, 0.0f, 1.0f));
geom->setNormalArray(normals);
geom->setNormalBinding(Geometry::BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords
// to use since we know up front:
geom->addPrimitiveSet(new DrawArrays(PrimitiveSet::LINES, 0, 24));
geom->setUseDisplayList(false); // allow dynamic changes
return geom;
}
Geode* ChessUtils::createRectangleWithTexture(Vec3 centerPosition, Image* image, int width, int height, Vec4 color) {
int halfWidth = width / 2;
int halfHeight = height / 2;
Vec3Array* vertices = new Vec3Array();
vertices->push_back(Vec3(centerPosition.x() - halfWidth, centerPosition.y() - halfHeight, centerPosition.z()));
vertices->push_back(Vec3(centerPosition.x() + halfWidth, centerPosition.y() - halfHeight, centerPosition.z()));
vertices->push_back(Vec3(centerPosition.x() + halfWidth, centerPosition.y() + halfHeight, centerPosition.z()));
vertices->push_back(Vec3(centerPosition.x() - halfWidth, centerPosition.y() + halfHeight, centerPosition.z()));
Vec3Array* normals = new Vec3Array();
normals->push_back(Vec3(0.0f, 0.0f, 1.0f));
Vec2Array* texcoords = new Vec2Array();
texcoords->push_back(Vec2(0.0f, 0.0f));
texcoords->push_back(Vec2(1.0f, 0.0f));
texcoords->push_back(Vec2(1.0f, 1.0f));
texcoords->push_back(Vec2(0.0f, 1.0f));
Vec4Array* colors = new Vec4Array();
colors->push_back(color);
Geometry* quad = new Geometry();
quad->setVertexArray(vertices);
quad->setNormalArray(normals);
quad->setNormalBinding(osg::Geometry::BIND_OVERALL);
quad->setColorArray(colors);
quad->setColorBinding(osg::Geometry::BIND_OVERALL);
quad->setTexCoordArray(0, texcoords);
quad->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, 4));
Texture2D* texture = new Texture2D();
if (image != NULL) {
texture->setImage(image);
}
Geode* geode = new Geode();
geode->addDrawable(quad);
osg::BlendFunc* blendFunc = new osg::BlendFunc();
blendFunc->setFunction(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
osg::TexEnv* blendTexEnv = new osg::TexEnv();
blendTexEnv->setMode(osg::TexEnv::BLEND);
osg::StateSet* geodeStateset = geode->getOrCreateStateSet();
geodeStateset->setAttributeAndModes(blendFunc);
geodeStateset->setTextureAttribute(0, blendTexEnv);
geodeStateset->setTextureAttributeAndModes(0, texture);
geodeStateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
return geode;
}
void ShapeDrawable::setColor(const Vec4& color)
{
_color = color;
Vec4Array* colors = dynamic_cast<Vec4Array*>(_colorArray.get());
if (!colors || colors->empty() || colors->getBinding()!=Array::BIND_OVERALL)
{
_colorArray = colors = new Vec4Array(Array::BIND_OVERALL, 1);
}
(*colors)[0] = color;
colors->dirty();
dirtyGLObjects();
}
Hyperspace::Hyperspace()
{
setGlows(false);
//start by creating a bunch of "stars"
int stars = 2500;
osg::Geode* geode = new Geode();
Geometry* geom = new Geometry;
geode->addDrawable(geom);
Vec4Array* colors = new Vec4Array();
colors->push_back(Vec4(1, 1, 1, 1));
geom->setColorArray(colors);
geom->setColorBinding(Geometry::BIND_OVERALL);
Vec3Array* verts = new Vec3Array();
geom->setVertexArray(verts);
geom->addPrimitiveSet(new DrawArrays(PrimitiveSet::TRIANGLES, 0, stars*3));
geom->getOrCreateStateSet()->setMode(GL_LIGHTING, false);
for(int i = 0; i < stars; i++)
{
float radius = Util::random(10, 150);
float theta = 6.28 * Util::loggedRandom("Hyperspace theta") / RAND_MAX;
float s = cosf(theta);
float c = sinf(theta);
Vec3 localUp(-s, c, 0);
float width = Util::random(0.1, 0.25) * radius / 25;;
float length = Util::random(10, 30) * radius / 20;
float z = 0;
Vec3 basePos(c*radius, s*radius, z+length*0.5);
Vec3 zDir(0, 0, 1);
verts->push_back(basePos + zDir * length * 0.5 + localUp * width * 0);
// verts->push_back(basePos + zDir * length * 0.5 - localUp * width * 0.5);
verts->push_back(basePos - zDir * length * 0.5 - localUp * width * 0.5);
verts->push_back(basePos - zDir * length * 0.5 + localUp * width * 0.5);
}
mPat->setPosition(Vec3(0, 0, -250));
mPat->addChild(geode);
mHSTime = -1;
update(0);
}
Array* Array_readLocalData(Input& fr)
{
if (fr[0].matchWord("Use"))
{
if (fr[1].isString())
{
Object* obj = fr.getObjectForUniqueID(fr[1].getStr());
if (obj)
{
fr+=2;
return dynamic_cast<Array*>(obj);
}
}
osg::notify(osg::WARN)<<"Warning: invalid uniqueID found in file."<<std::endl;
return NULL;
}
std::string uniqueID;
if (fr[0].matchWord("UniqueID") && fr[1].isString())
{
uniqueID = fr[1].getStr();
fr += 2;
}
int entry = fr[0].getNoNestedBrackets();
const char* arrayName = fr[0].getStr();
unsigned int capacity = 0;
fr[1].getUInt(capacity);
++fr;
fr += 2;
Array* return_array = 0;
if (strcmp(arrayName,"ByteArray")==0)
{
ByteArray* array = new ByteArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
int int_value;
if (fr[0].getInt(int_value))
{
++fr;
array->push_back(int_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"ShortArray")==0)
{
ShortArray* array = new ShortArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
int int_value;
if (fr[0].getInt(int_value))
{
++fr;
array->push_back(int_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"IntArray")==0)
{
IntArray* array = new IntArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
int int_value;
if (fr[0].getInt(int_value))
{
++fr;
array->push_back(int_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UByteArray")==0)
{
UByteArray* array = new UByteArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int uint_value;
if (fr[0].getUInt(uint_value))
{
++fr;
array->push_back(uint_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UShortArray")==0)
{
UShortArray* array = new UShortArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int uint_value;
if (fr[0].getUInt(uint_value))
{
++fr;
array->push_back(uint_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UIntArray")==0)
{
UIntArray* array = new UIntArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int uint_value;
if (fr[0].getUInt(uint_value))
{
++fr;
array->push_back(uint_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"UVec4bArray")==0 || strcmp(arrayName,"Vec4ubArray")==0)
{
Vec4ubArray* array = new Vec4ubArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b,a;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b) &&
fr[3].getUInt(a))
{
fr+=4;
array->push_back(osg::Vec4ub(r,g,b,a));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"FloatArray")==0)
{
FloatArray* array = new FloatArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
float float_value;
if (fr[0].getFloat(float_value))
{
++fr;
array->push_back(float_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"DoubleArray")==0)
{
DoubleArray* array = new DoubleArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
double double_value;
if (fr[0].getFloat(double_value))
{
++fr;
array->push_back(double_value);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2Array")==0)
{
Vec2Array* array = new Vec2Array;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec2 v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()))
{
fr += 2;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2dArray")==0)
{
Vec2dArray* array = new Vec2dArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec2d v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()))
{
fr += 2;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3Array")==0)
{
Vec3Array* array = new Vec3Array;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec3 v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()))
{
fr += 3;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3dArray")==0)
{
Vec3dArray* array = new Vec3dArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec3d v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()))
{
fr += 3;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4Array")==0)
{
Vec4Array* array = new Vec4Array;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec4 v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()) && fr[3].getFloat(v.w()))
{
fr += 4;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4dArray")==0)
{
Vec4dArray* array = new Vec4dArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
Vec4d v;
if (fr[0].getFloat(v.x()) && fr[1].getFloat(v.y()) && fr[2].getFloat(v.z()) && fr[3].getFloat(v.w()))
{
fr += 4;
array->push_back(v);
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2bArray")==0)
{
Vec2bArray* array = new Vec2bArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g))
{
fr+=2;
array->push_back(osg::Vec2b(r,g));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3bArray")==0)
{
Vec3bArray* array = new Vec3bArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b))
{
fr+=3;
array->push_back(osg::Vec3b(r,g,b));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4bArray")==0)
{
Vec4bArray* array = new Vec4bArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b,a;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b) &&
fr[3].getUInt(a))
{
fr+=4;
array->push_back(osg::Vec4b(r,g,b,a));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec2sArray")==0)
{
Vec2sArray* array = new Vec2sArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g))
{
fr+=2;
array->push_back(osg::Vec2s(r,g));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec3sArray")==0)
{
Vec3sArray* array = new Vec3sArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b))
{
fr+=3;
array->push_back(osg::Vec3s(r,g,b));
}
else ++fr;
}
++fr;
return_array = array;
}
else if (strcmp(arrayName,"Vec4sArray")==0)
{
Vec4sArray* array = new Vec4sArray;
array->reserve(capacity);
while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
{
unsigned int r,g,b,a;
if (fr[0].getUInt(r) &&
fr[1].getUInt(g) &&
fr[2].getUInt(b) &&
fr[3].getUInt(a))
{
fr+=4;
array->push_back(osg::Vec4s(r,g,b,a));
}
else ++fr;
}
++fr;
return_array = array;
}
if (return_array)
{
if (!uniqueID.empty()) fr.registerUniqueIDForObject(uniqueID.c_str(),return_array);
}
return return_array;
}
void updateHorizonColors(Vec4Array const &colors) {
assert(int(colors.size()) == m_Segments);
for (int i=0; i < m_Segments; i++) (*m_Colors)[i] = colors[i];
dirtyDisplayList();
}
void operator ()( const osg::Vec3& s1, const osg::Vec3& s2,
const osg::Vec3& s3, bool treatVertexDataAsTemporary )
{
Vec3 v1 = s1;
Vec3 v2 = s2;
Vec3 v3 = s3;
if( _matrix ) {
v1 = v1 * *_matrix;
v2 = v2 * *_matrix;
v3 = v3 * *_matrix;
}
if(_mode == ShadowVolumeGeometryGenerator::CPU_RAW || _mode == ShadowVolumeGeometryGenerator::CPU_SILHOUETTE){
Vec3 n;
if(_fronface == ShadowVolumeGeometryGenerator::CCW)
n = (v2-v1) ^ (v3-v1); // normal of the face
else
n = (v3-v1) ^ (v2-v1); // normal of the face
Vec3 lp3 = toVec3( _lightPos ); // lightpos converted to Vec3
/**
* Is the current triangle facing to the light in given vertex ordering.
* Dot product of normal with to-light vector. The normal is in given CW or CCW order.
* The > sign means, that when the face is parallel to light ( the normal is orthogonal) the
* face is considered back face (otherwise there would be >=). This helps with objects with
* holes (non-solid) so when we are computing silhouette in z-fail we are not making light
* caps out of it (causing problems with directional light).
*/
bool front = ( n * ( lp3-v1 * _lightPos.w() ) ) > 0;
//if(_castface = ShadowVolumeGeometryGenerator::BACK)
// front = !front;
if(_mode == ShadowVolumeGeometryGenerator::CPU_RAW && !front
&& (_castface == ShadowVolumeGeometryGenerator::FRONT_AND_BACK || _castface == ShadowVolumeGeometryGenerator::BACK)
)
{
Vec3 tmp = v1;
v1 = v2;
v2 = tmp;
//return;
}
//in case of not shadow casting face in CPU_RAW
else if(_mode == ShadowVolumeGeometryGenerator::CPU_RAW &&
(
(!front && _castface == ShadowVolumeGeometryGenerator::FRONT) ||
( front && _castface == ShadowVolumeGeometryGenerator::BACK)
)
)
{
return; //the triangle is not shadow casting face
}
//In z-fail silhouette case, we need to generate caps now becuse there is no algorithm for
//creating it from silhouette, and it is impossible in case of light cap. Light cap need
//to be the actual geometry.
else if( _mode == ShadowVolumeGeometryGenerator::CPU_SILHOUETTE
&& _method == ShadowVolumeGeometryGenerator::ZFAIL
&& _caps_vert != NULL
//now we are sure we need caps, so we need to generate them from shadowcasting faces, right?
&&(
( front && _castface == ShadowVolumeGeometryGenerator::FRONT)
|| (!front && _castface == ShadowVolumeGeometryGenerator::BACK)
)
)
{
//notify(NOTICE)<<"ADD CAP"<<std::endl;
Vec4 t1(v1,1.0);
Vec4 t2(v2,1.0);
Vec4 t3(v3,1.0);
_caps_vert->push_back(t1);
_caps_vert->push_back(t2);
_caps_vert->push_back(t3);
_caps_col->push_back(Vec4(1.0,0.0,0.0,1.0));
_caps_col->push_back(Vec4(1.0,0.0,0.0,1.0));
_caps_col->push_back(Vec4(1.0,0.0,0.0,1.0));
/* dark caps (lame) */
Vec4 t0inf = projectToInf(t1, _lightPos);
Vec4 t1inf = projectToInf(t2, _lightPos);
Vec4 t2inf = projectToInf(t3, _lightPos);
_caps_vert->push_back(t0inf);
_caps_vert->push_back(t2inf);
_caps_vert->push_back(t1inf);
_caps_col->push_back(Vec4(0.0,0.0,1.0,1.0));
_caps_col->push_back(Vec4(0.0,0.0,1.0,1.0));
_caps_col->push_back(Vec4(0.0,0.0,1.0,1.0));
}
}
// transform vertices
Vec4 t1( v1,1.);
Vec4 t2( v2,1.);
Vec4 t3( v3,1.);
// skip if not front-facing the light
//Vec3 n = (t2-t1) ^ (t3-t1); // normal of the face
//Vec3 lp3 = toVec3( _lightPos ); // lightpos converted to Vec3
//bool front = ( n * ( lp3-t1 ) ) >= 0; // dot product
//if( !front )
// return;
// final vertices
/*Vec4 f1( t1, 1. );
Vec4 f2( t2, 1. );
Vec4 f3( t3, 1. );*/
// store vertices
_data->push_back( t1 );
_data->push_back( t2 );
_data->push_back( t3 );
}
