protected override void DrawPrimitive(eLevelofDetail lod, UWB_DrawHelper draw_helper)
{
UWB_XNAGraphicsDevice graphics = UWB_XNAGraphicsDevice.m_TheAPI;
UWB_XNAPrimitiveMesh pCylinderMesh = new UWB_XNAPrimitiveMesh("cylinder");
UWB_XNAPrimitiveMesh pConeMesh = new UWB_XNAPrimitiveMesh("cone");
if (pCylinderMesh != null && pConeMesh != null)
{
pCylinderMesh.Material = Material;
pConeMesh.Material = Material;
draw_helper.pushModelTransform();
{
// Need to add support for finding the bounding box of a mesh
// the Z value is hard coded until then
//UWB_BoundingBox box = (pCylinderMesh.getBoundingVolume(draw_helper.getLod()) as UWB_BoundingBox);
UWB_XFormInfo cylinder_xform = new UWB_XFormInfo();
cylinder_xform.SetScale(new Vector3(0.025f, 0.025f, 0.2666666666f));
cylinder_xform.UpdateRotationYByDegree(-90.0f);
cylinder_xform.SetTranslation(new Vector3(0.4f, 0.0f, 0.0f));
cylinder_xform.setupModelStack(draw_helper);
try
{
pCylinderMesh.setMesh(graphics.mResources.Load<Model>("cylinder"));
pCylinderMesh.DrawMesh(true, mFlatColor, draw_helper);
}
catch (Exception e) { UWBGL_XNA_Lib.UWB_Utility.echoToStatusArea((e.Message)); }
//pCylinderMesh.DrawMesh(false, mFlatColor,draw_helper);
}
draw_helper.popModelTransform();
draw_helper.pushModelTransform();
{
//const UWB_BoundingBox box = pConeMesh.getBoundingBox();
UWB_XFormInfo cone_xform = new UWB_XFormInfo();
cone_xform.SetScale(new Vector3(0.08f,0.08f, 0.1f));
cone_xform.UpdateRotationYByDegree(-90.0f);
cone_xform.SetTranslation(new Vector3(0.85f,0.0f,0.0f));
cone_xform.setupModelStack(draw_helper);
try
{
pConeMesh.setMesh(graphics.mResources.Load<Model>("cone"));
pConeMesh.DrawMesh(true, mFlatColor, draw_helper);
}
catch (Exception e) { UWBGL_XNA_Lib.UWB_Utility.echoToStatusArea((e.Message)); }
//pConeMesh.DrawMesh(false, mFlatColor, draw_helper);
}
draw_helper.popModelTransform();
}
}
protected override void DrawPrimitive(eLevelofDetail lod, UWB_DrawHelper draw_helper)
{
UWB_XNAGraphicsDevice graphics = UWB_XNAGraphicsDevice.m_TheAPI;
UWB_XNAPrimitiveMesh pCylinderMesh = new UWB_XNAPrimitiveMesh("cylinder");
UWB_XNAPrimitiveMesh pConeMesh = new UWB_XNAPrimitiveMesh("cone");
if (pCylinderMesh != null && pConeMesh != null)
{
pCylinderMesh.Material = Material;
pConeMesh.Material = Material;
draw_helper.pushModelTransform();
{
// Need to add support for finding the bounding box of a mesh
// the Z value is hard coded until then
//UWB_BoundingBox box = (pCylinderMesh.getBoundingVolume(draw_helper.getLod()) as UWB_BoundingBox);
UWB_XFormInfo cylinder_xform = new UWB_XFormInfo();
cylinder_xform.SetScale(new Vector3(0.025f, 0.025f, 0.2666666666f));
cylinder_xform.UpdateRotationYByDegree(-90.0f);
cylinder_xform.SetTranslation(new Vector3(0.4f, 0.0f, 0.0f));
cylinder_xform.setupModelStack(draw_helper);
try
{
pCylinderMesh.setMesh(graphics.mResources.Load <Model>("cylinder"));
pCylinderMesh.DrawMesh(true, mFlatColor, draw_helper);
}
catch (Exception e) { UWBGL_XNA_Lib.UWB_Utility.echoToStatusArea((e.Message)); }
//pCylinderMesh.DrawMesh(false, mFlatColor,draw_helper);
}
draw_helper.popModelTransform();
draw_helper.pushModelTransform();
{
//const UWB_BoundingBox box = pConeMesh.getBoundingBox();
UWB_XFormInfo cone_xform = new UWB_XFormInfo();
cone_xform.SetScale(new Vector3(0.08f, 0.08f, 0.1f));
cone_xform.UpdateRotationYByDegree(-90.0f);
cone_xform.SetTranslation(new Vector3(0.85f, 0.0f, 0.0f));
cone_xform.setupModelStack(draw_helper);
try
{
pConeMesh.setMesh(graphics.mResources.Load <Model>("cone"));
pConeMesh.DrawMesh(true, mFlatColor, draw_helper);
}
catch (Exception e) { UWBGL_XNA_Lib.UWB_Utility.echoToStatusArea((e.Message)); }
//pConeMesh.DrawMesh(false, mFlatColor, draw_helper);
}
draw_helper.popModelTransform();
}
}
private UWB_Primitive CreateSphereMesh()
{
UWB_XNAPrimitiveMesh m = new UWB_XNAPrimitiveMesh("sphere");
m.EnableTexturing(false);
m.EnableLighting(true);
return m;
}
private UWB_Primitive CreateRectangle(RTRectangle r)
{
UWB_XNAPrimitiveMesh m = new UWB_XNAPrimitiveMesh("HiResFloor");
m.EnableTexturing(false);
m.EnableLighting(true);
return m;
}
private void AddCamera(RayTracer_552.RTCamera c)
{
// Look at position
UWB_SceneNode atN = new UWB_SceneNode();
UWB_XNAPrimitiveMesh at = new UWB_XNAPrimitiveMesh("sphere");
at.Material.Diffuse = new Vector4(0.8f, 0.1f, 0.1f, 1.0f);
atN.setPrimitive(at);
UWB_XFormInfo atxf = atN.getXFormInfo();
atxf.SetTranslation(c.AtPosition);
atxf.SetScale(new Vector3(0.3f, 0.3f, 0.3f));
atN.setXFormInfo(atxf);
// Eye position
UWB_SceneNode eyeN = new UWB_SceneNode();
UWB_XNAPrimitiveMesh eye = new UWB_XNAPrimitiveMesh("cone");
eyeN.setPrimitive(eye);
UWB_XFormInfo eyexf = eyeN.getXFormInfo();
eyexf.SetTranslation(c.EyePosition);
mCameraPosition = c.EyePosition;
Vector3 init = new Vector3(0, 0, 1); // initial cone orientation
Vector3 final = c.AtPosition - c.EyePosition;
final = Vector3.Normalize(final);
float dot = Vector3.Dot(init, final);
if (Math.Abs(dot) < 0.9999)
{
float angle = (float)Math.Acos(dot);
Vector3 axis = Vector3.Cross(init, final);
axis = Vector3.Normalize(axis);
Quaternion q = Quaternion.CreateFromAxisAngle(axis, angle);
eyexf.SetRotationQuat(q);
}
eyeN.setXFormInfo(eyexf);
// Lines ...
UWB_SceneNode lineN = new UWB_SceneNode();
mCameraPrimitives = new UWB_PrimitiveList();
lineN.setPrimitive(mCameraPrimitives);
UWB_PrimitiveLine l = new UWB_PrimitiveLine();
l.setStartPoint(c.EyePosition.X, c.EyePosition.Y, c.EyePosition.Z);
l.setEndPoint(c.AtPosition.X, c.AtPosition.Y, c.AtPosition.Z);
mCameraPrimitives.append(l);
mCamera.insertChildNode(lineN);
mCamera.insertChildNode(atN);
mCamera.insertChildNode(eyeN);
}
