void DebugRenderer::AddCylinder(const Vector3& position, float radius, float height, const Color& color, bool depthTest)
{
Sphere sphere(position, radius);
Vector3 heightVec(0, height, 0);
Vector3 offsetXVec(radius, 0, 0);
Vector3 offsetZVec(0, 0, radius);
for (unsigned i = 0; i < 360; i += 45)
{
Vector3 p1 = PointOnSphere(sphere, i, 90);
Vector3 p2 = PointOnSphere(sphere, i + 45, 90);
AddLine(p1, p2, color, depthTest);
AddLine(p1 + heightVec, p2 + heightVec, color, depthTest);
}
AddLine(position + offsetXVec, position + heightVec + offsetXVec, color, depthTest);
AddLine(position - offsetXVec, position + heightVec - offsetXVec, color, depthTest);
AddLine(position + offsetZVec, position + heightVec + offsetZVec, color, depthTest);
AddLine(position - offsetZVec, position + heightVec - offsetZVec, color, depthTest);
}
/**
* GeometryUtils
*/
JNIEXPORT jlong JNICALL Java_org_openscenegraph_osg_util_GeometryUtils_nativeCreateScreenQuad(JNIEnv *env, jclass,
jint x, jint y, jint w, jint h, jboolean isBackGround)
{
osg::Camera *hud = new osg::Camera();
float z=-1.0f;
osg::Vec4 color((float)(rand()%10)/10.0,1,(float)(rand()%10)/10.0,1);
hud->setProjectionMatrix(osg::Matrix::ortho2D(0,w,0,h));
hud->setViewport(x,y,w,h);
hud->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
hud->setViewMatrix(osg::Matrix::identity());
hud->setInheritanceMask(hud->getInheritanceMask() & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE);
hud->setAllowEventFocus(false);
hud->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
if(isBackGround == JNI_TRUE)
{
hud->setRenderOrder(osg::Camera::NESTED_RENDER);
//hud->getOrCreateStateSet()->setRenderBinDetails(1,"DepthSortedBin");
hud->getOrCreateStateSet()->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
hud->getOrCreateStateSet()->setTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::ON);
}
osg::ref_ptr<osg::Geode> geode = new osg::Geode();
osg::ref_ptr<osg::Geometry> plane = new osg::Geometry;
osg::Vec3 corner(0,0,z);
osg::Vec3 widthVec(w, 0.0, z);
osg::Vec3 heightVec(0.0, h, z);
float l = 0.0f;
float b = 0.0f;
float r = 1.0;
float t = 1.0;
osg::Vec3Array* coords = new osg::Vec3Array(4);
(*coords)[0] = corner+heightVec;
(*coords)[1] = corner;
(*coords)[2] = corner+widthVec;
(*coords)[3] = corner+widthVec+heightVec;
plane->setVertexArray(coords);
osg::Vec2Array* tcoords = new osg::Vec2Array(4);
(*tcoords)[0].set(l,t);
(*tcoords)[1].set(l,b);
(*tcoords)[2].set(r,b);
(*tcoords)[3].set(r,t);
plane->setTexCoordArray(0,tcoords);
osg::Vec4Array* colours = new osg::Vec4Array(1);
(*colours)[0] = color;
plane->setColorArray(colours);
plane->setColorBinding(osg::Geometry::BIND_OVERALL);
osg::Vec3Array* normals = new osg::Vec3Array(1);
(*normals)[0] = widthVec^heightVec;
(*normals)[0].normalize();
plane->setNormalArray(normals);
plane->setNormalBinding(osg::Geometry::BIND_OVERALL);
plane->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
geode->addDrawable(plane.get());
hud->addChild(geode.get());
hud->ref();
return reinterpret_cast<jlong>(hud);
}