static Geode createAxis()
{
Geode geode = (new Geode());
Geometry geometry = (new Geometry());
Vec3Array vertices = (new Vec3Array());
vertices.push_back(new Vec3f(0.0f, 0.0f, 0.0f));
vertices.push_back(new Vec3f(1.0f, 0.0f, 0.0f));
vertices.push_back(new Vec3f(0.0f, 0.0f, 0.0f));
vertices.push_back(new Vec3f(0.0f, 1.0f, 0.0f));
vertices.push_back(new Vec3f(0.0f, 0.0f, 0.0f));
vertices.push_back(new Vec3f(0.0f, 0.0f, 1.0f));
geometry.setVertexArray(vertices);
Vec4Array colors = (new Vec4Array());
colors.push_back(new Vec4f(1.0f, 0.0f, 0.0f, 1.0f));
colors.push_back(new Vec4f(1.0f, 0.0f, 0.0f, 1.0f));
colors.push_back(new Vec4f(0.0f, 1.0f, 0.0f, 1.0f));
colors.push_back(new Vec4f(0.0f, 1.0f, 0.0f, 1.0f));
colors.push_back(new Vec4f(0.0f, 0.0f, 1.0f, 1.0f));
colors.push_back(new Vec4f(0.0f, 0.0f, 1.0f, 1.0f));
geometry.setColorArray(colors, Array.Binding.BIND_PER_VERTEX);
geometry.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.LINES, 0, 6));
geometry.getOrCreateStateSet().setMode(GL.GL_LIGHTING, (uint)false.ToStateAttributeValue());
geode.addDrawable(geometry);
return(geode);
}
/// <summary>
/// Crea una escena de ejemplo.
/// </summary>
private void CreateSampleScene()
{
//The geode containing our shape
Geode geode = new Geode();
////Our shape: a capsule, it could have been any other geometry (a box, plane, cylinder etc.)
//Capsule myCapsule = new Capsule(new Vec3f(), 1, 2);
////Our shape drawable
//ShapeDrawable capsuledrawable = new ShapeDrawable(myCapsule);
//geode.addDrawable(capsuledrawable);
// create POINTS
{
Geometry pointsGeom = new Geometry();
Vec3Array vertices = new Vec3Array();
vertices.push_back(new Vec3f(-1.02168f, -2.15188e-09f, 0.885735f));
vertices.push_back(new Vec3f(-0.976368f, -2.15188e-09f, 0.832179f));
vertices.push_back(new Vec3f(-0.873376f, 9.18133e-09f, 0.832179f));
vertices.push_back(new Vec3f(-0.836299f, -2.15188e-09f, 0.885735f));
vertices.push_back(new Vec3f(-0.790982f, 9.18133e-09f, 0.959889f));
pointsGeom.setVertexArray(vertices);
Vec4Array colors = new Vec4Array();
colors.push_back(new Vec4f(1.0f, 1.0f, 0.0f, 1.0f));
pointsGeom.setColorArray(colors);
pointsGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
Vec3Array normals = new Vec3Array();
normals.push_back(new Vec3f(0.0f, -1.0f, 0.0f));
pointsGeom.setNormalArray(normals);
pointsGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
pointsGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.POINTS, 0, (int)vertices.size()));
geode.addDrawable(pointsGeom);
}
// create LINES
{
// create Geometry object to store all the vertices and lines primitive.
Geometry linesGeom = new Geometry();
// this time we'll preallocate the vertex array to the size we
// need and then simple set them as array elements, 8 points
// makes 4 line segments.
Vec3Array vertices = new Vec3Array(8);
vertices.set(0, new Vec3f(-1.13704f, -2.15188e-09f, 0.40373f));
vertices.set(1, new Vec3f(-0.856897f, -2.15188e-09f, 0.531441f));
vertices.set(2, new Vec3f(-0.889855f, -2.15188e-09f, 0.444927f));
vertices.set(3, new Vec3f(-0.568518f, -2.15188e-09f, 0.40373f));
vertices.set(4, new Vec3f(-1.00933f, -2.15188e-09f, 0.370773f));
vertices.set(5, new Vec3f(-0.716827f, -2.15188e-09f, 0.292498f));
vertices.set(6, new Vec3f(-1.07936f, 9.18133e-09f, 0.317217f));
vertices.set(7, new Vec3f(-0.700348f, 9.18133e-09f, 0.362533f));
// pass the created vertex array to the points geometry object.
linesGeom.setVertexArray(vertices);
// set the colors as before, plus using the above
Vec4Array colors = new Vec4Array();
colors.push_back(new Vec4f(1.0f, 1.0f, 0.0f, 1.0f));
linesGeom.setColorArray(colors);
linesGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// set the normal in the same way color.
Vec3Array normals = new Vec3Array();
normals.push_back(new Vec3f(0.0f, -1.0f, 0.0f));
linesGeom.setNormalArray(normals);
linesGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
linesGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.LINES, 0, 8));
// add the points geometry to the geode.
geode.addDrawable(linesGeom);
}
// create LINE_STRIP
{
// create Geometry object to store all the vertices and lines primitive.
Geometry linesGeom = new Geometry();
// this time we'll preallocate the vertex array to the size
// and then use an iterator to fill in the values, a bit perverse
// but does demonstrate that we have just a standard std::vector underneath.
Vec3Array vertices = new Vec3Array();
vertices.push_back(new Vec3f(-0.0741545f, -2.15188e-09f, 0.416089f));
vertices.push_back(new Vec3f(0.234823f, -2.15188e-09f, 0.259541f));
vertices.push_back(new Vec3f(0.164788f, -2.15188e-09f, 0.366653f));
vertices.push_back(new Vec3f(-0.0288379f, -2.15188e-09f, 0.333695f));
vertices.push_back(new Vec3f(-0.0453167f, -2.15188e-09f, 0.280139f));
// pass the created vertex array to the points geometry object.
linesGeom.setVertexArray(vertices);
// set the colors as before, plus using the above
Vec4Array colors = new Vec4Array();
colors.push_back(new Vec4f(1.0f, 1.0f, 0.0f, 1.0f));
linesGeom.setColorArray(colors);
linesGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// set the normal in the same way color.
Vec3Array normals = new Vec3Array();
normals.push_back(new Vec3f(0.0f, -1.0f, 0.0f));
linesGeom.setNormalArray(normals);
linesGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
linesGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.LINE_STRIP, 0, 5));
// add the points geometry to the geode.
geode.addDrawable(linesGeom);
}
// create LINE_LOOP
{
// create Geometry object to store all the vertices and lines primitive.
Geometry linesGeom = new Geometry();
// this time we'll a C arrays to initialize the vertices.
Vec3f[] myCoords =
{
new Vec3f(0.741546f, -2.15188e-09f, 0.453167f),
new Vec3f(0.840418f, -2.15188e-09f, 0.304858f),
new Vec3f(1.12468f, -2.15188e-09f, 0.300738f),
new Vec3f(1.03816f, 9.18133e-09f, 0.453167f),
new Vec3f(0.968129f, -2.15188e-09f, 0.337815f),
new Vec3f(0.869256f, -2.15188e-09f, 0.531441f)
};
int numCoords = myCoords.Length;
Vec3Array vertices = new Vec3Array(new Vec3Vector(myCoords));
// pass the created vertex array to the points geometry object.
linesGeom.setVertexArray(vertices);
// set the colors as before, plus using the above
Vec4Array colors = new Vec4Array();
colors.push_back(new Vec4f(1.0f, 1.0f, 0.0f, 1.0f));
linesGeom.setColorArray(colors);
linesGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// set the normal in the same way color.
Vec3Array normals = new Vec3Array();
normals.push_back(new Vec3f(0.0f, -1.0f, 0.0f));
linesGeom.setNormalArray(normals);
linesGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
linesGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.LINE_LOOP, 0, numCoords));
// add the points geometry to the geode.
geode.addDrawable(linesGeom);
}
// now we'll stop creating separate normal and color arrays
// since we are using the same values all the time, we'll just
// share the same ColorArray and NormalArrays..
// set the colors as before, use a ref_ptr rather than just
// standard C pointer, as that in the case of it not being
// assigned it will still be cleaned up automatically.
Vec4Array shared_colors = new Vec4Array();
shared_colors.push_back(new Vec4f(1.0f, 1.0f, 0.0f, 1.0f));
// same trick for shared normal.
Vec3Array shared_normals = new Vec3Array();
shared_normals.push_back(new Vec3f(0.0f, -1.0f, 0.0f));
// Note on vertex ordering.
// According to the OpenGL diagram vertices should be specified in a clockwise direction.
// In reality you need to specify coords for polygons in a anticlockwise direction
// for their front face to be pointing towards you; get this wrong and you could
// find back face culling removing the wrong faces of your models. The OpenGL diagram
// is just plain wrong, but it's a nice diagram so we'll keep it for now!
// create POLYGON
{
// create Geometry object to store all the vertices and lines primitive.
Geometry polyGeom = new Geometry();
// this time we'll use C arrays to initialize the vertices.
// note, anticlockwise ordering.
// note II, OpenGL polygons must be convex, planar polygons, otherwise
// undefined results will occur. If you have concave polygons or ones
// that cross over themselves then use the osgUtil::Tessellator to fix
// the polygons into a set of valid polygons.
Vec3f[] myCoords =
{
new Vec3f(-1.0464f, 0.0f, -0.193626f),
new Vec3f(-1.0258f, 0.0f, -0.26778f),
new Vec3f(-0.807461f, 0.0f, -0.181267f),
new Vec3f(-0.766264f, 0.0f, -0.0576758f),
new Vec3f(-0.980488f, 0.0f, -0.094753f)
};
int numCoords = myCoords.Length;
Vec3Array vertices = new Vec3Array(new Vec3Vector(myCoords));
// pass the created vertex array to the points geometry object.
polyGeom.setVertexArray(vertices);
// use the shared color array.
polyGeom.setColorArray(shared_colors);
polyGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// use the shared normal array.
polyGeom.setNormalArray(shared_normals);
polyGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
polyGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.POLYGON, 0, numCoords));
//printTriangles("Polygon", polyGeom);
// add the points geometry to the geode.
geode.addDrawable(polyGeom);
}
// create QUADS
{
// create Geometry object to store all the vertices and lines primitive.
Geometry polyGeom = new Geometry();
// note, anticlockwise ordering.
Vec3f[] myCoords =
{
new Vec3f(0.0247182f, 0.0f, -0.156548f),
new Vec3f(0.0247182f, 0.0f, -0.00823939f),
new Vec3f(-0.160668f, 0.0f, -0.0453167f),
new Vec3f(-0.222464f, 0.0f, -0.13183f),
new Vec3f(0.238942f, 0.0f, -0.251302f),
new Vec3f(0.333696f, 0.0f, 0.0329576f),
new Vec3f(0.164788f, 0.0f, -0.0453167f),
new Vec3f(0.13595f, 0.0f, -0.255421f)
};
int numCoords = myCoords.Length;
Vec3Array vertices = new Vec3Array(new Vec3Vector(myCoords));
// pass the created vertex array to the points geometry object.
polyGeom.setVertexArray(vertices);
// use the shared color array.
polyGeom.setColorArray(shared_colors);
polyGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// use the shared normal array.
polyGeom.setNormalArray(shared_normals);
polyGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
polyGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.QUADS, 0, numCoords));
//printTriangles("Quads", *polyGeom);
// add the points geometry to the geode.
geode.addDrawable(polyGeom);
}
// create QUAD_STRIP
{
// create Geometry object to store all the vertices and lines primitive.
Geometry polyGeom = new Geometry();
// note, first coord at top, second at bottom, reverse to that buggy OpenGL image..
Vec3f[] myCoords =
{
new Vec3f(0.733306f, -2.15188e-09f, -0.0741545f),
new Vec3f(0.758024f, -2.15188e-09f, -0.205985f),
new Vec3f(0.885735f, -2.15188e-09f, -0.0576757f),
new Vec3f(0.885735f, -2.15188e-09f, -0.214224f),
new Vec3f(0.964009f, 9.18133e-09f, -0.0370773f),
new Vec3f(1.0464f, 9.18133e-09f, -0.173027f),
new Vec3f(1.11232f, -2.15188e-09f, 0.0123591f),
new Vec3f(1.12468f, 9.18133e-09f, -0.164788f),
};
int numCoords = myCoords.Length;
Vec3Array vertices = new Vec3Array(new Vec3Vector(myCoords));
// pass the created vertex array to the points geometry object.
polyGeom.setVertexArray(vertices);
// use the shared color array.
polyGeom.setColorArray(shared_colors);
polyGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// use the shared normal array.
polyGeom.setNormalArray(shared_normals);
polyGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
polyGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.QUAD_STRIP, 0, numCoords));
//printTriangles("Quads strip", *polyGeom);
// add the points geometry to the geode.
geode.addDrawable(polyGeom);
}
// create TRIANGLES, TRIANGLE_STRIP and TRIANGLE_FAN all in one Geometry/
{
// create Geometry object to store all the vertices and lines primitive.
Geometry polyGeom = new Geometry();
// note, first coord at top, second at bottom, reverse to that buggy OpenGL image..
Vec3f[] myCoords =
{
// TRIANGLES 6 vertices, v0..v5
// note in anticlockwise order.
new Vec3f(-1.12056f, -2.15188e-09f, -0.840418f),
new Vec3f(-0.95165f, -2.15188e-09f, -0.840418f),
new Vec3f(-1.11644f, 9.18133e-09f, -0.716827f),
// note in anticlockwise order.
new Vec3f(-0.840418f, 9.18133e-09f, -0.778623f),
new Vec3f(-0.622074f, 9.18133e-09f, -0.613835f),
new Vec3f(-1.067f, 9.18133e-09f, -0.609715f),
// TRIANGLE STRIP 6 vertices, v6..v11
// note defined top point first,
// then anticlockwise for the next two points,
// then alternating to bottom there after.
new Vec3f(-0.160668f, -2.15188e-09f, -0.531441f),
new Vec3f(-0.160668f, -2.15188e-09f, -0.749785f),
new Vec3f(0.0617955f, 9.18133e-09f, -0.531441f),
new Vec3f(0.168908f, -2.15188e-09f, -0.753905f),
new Vec3f(0.238942f, -2.15188e-09f, -0.531441f),
new Vec3f(0.280139f, -2.15188e-09f, -0.823939f),
// TRIANGLE FAN 5 vertices, v12..v16
// note defined in anticlockwise order.
new Vec3f(0.844538f, 9.18133e-09f, -0.712708f),
new Vec3f(1.0258f, 9.18133e-09f, -0.799221f),
new Vec3f(1.03816f, -2.15188e-09f, -0.692109f),
new Vec3f(0.988727f, 9.18133e-09f, -0.568518f),
new Vec3f(0.840418f, -2.15188e-09f, -0.506723f),
};
int numCoords = myCoords.Length;
Vec3Array vertices = new Vec3Array(new Vec3Vector(myCoords));
// pass the created vertex array to the points geometry object.
polyGeom.setVertexArray(vertices);
// use the shared color array.
polyGeom.setColorArray(shared_colors);
polyGeom.setColorBinding(Geometry.AttributeBinding.BIND_OVERALL);
// use the shared normal array.
polyGeom.setNormalArray(shared_normals);
polyGeom.setNormalBinding(Geometry.AttributeBinding.BIND_OVERALL);
// This time we simply use primitive, and hardwire the number of coords to use
// since we know up front,
polyGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.TRIANGLES, 0, 6));
polyGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.TRIANGLE_STRIP, 6, 6));
polyGeom.addPrimitiveSet(new DrawArrays((uint)PrimitiveSet.Mode.TRIANGLE_FAN, 12, 5));
// polygon stipple
StateSet stateSet = new StateSet();
polyGeom.setStateSet(stateSet);
//# if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE) && !defined(OSG_GL3_AVAILABLE)
// PolygonStipple* polygonStipple = new PolygonStipple;
// stateSet.setAttributeAndModes(polygonStipple, StateAttribute.Values.OVERRIDE | StateAttribute.Values.ON);
//#endif
//printTriangles("Triangles/Strip/Fan", *polyGeom);
// add the points geometry to the geode.
geode.addDrawable(polyGeom);
}
this.root.addChild(geode);
}