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);
}
// Copy Constructor
public RTCamera(RTCamera c)
{
mEye = c.mEye;
mAt = c.mAt;
mUp = c.mUp;
mViewDir = c.mViewDir;
mSideVec = c.mSideVec;
mFOV = c.mFOV;
mFocus = c.mFocus;
mPixeldX = c.mPixeldX;
mPixeldY = c.mPixeldY;
mPixelOrigin = c.mPixelOrigin;
}
public CommandFileParser(String cmdFile, ContentManager meshLoader, System.Windows.Forms.TextBox statusArea, RTCore rt, SceneDatabase scene)
{
mStatusArea = statusArea;
mFullPath = System.IO.Path.GetFullPath(System.IO.Path.GetDirectoryName(cmdFile));
mParser = new XmlTextReader(cmdFile);
mParser.WhitespaceHandling = WhitespaceHandling.None;
ParserRead();
while (!IsEndElement("RayTracer_552"))
{
if (IsElement() && (!IsElement("RayTracer_552")))
{
if (IsElement("camera"))
{
RTCamera c = new RTCamera(this);
rt.SetCamera(c);
ParserRead();
}
else if (IsElement("sphere"))
{
RTSphere s = new RTSphere(this);
scene.AddGeom(s);
ParserRead();
}
else if (IsElement("rectangle"))
{
RTRectangle r = new RTRectangle(this);
scene.AddGeom(r);
ParserRead();
}
else if (IsElement("triangle"))
{
RTTriangle t = new RTTriangle(this);
scene.AddGeom(t);
ParserRead();
}
else if (IsElement("mesh"))
{
RTTriangle.ParseMeshForTriangles(this, meshLoader, scene);
ParserRead();
}
else if (IsElement("imagespec"))
{
ImageSpec s = new ImageSpec(this);
rt.SetImageSpec(s);
ParserRead();
}
else if (IsElement("rtspec"))
{
rt.Parse(this);
ParserRead();
}
else if (IsElement("material"))
{
RTMaterial m = new RTMaterial(this);
scene.AddMaterial(m);
ParserRead();
}
else if (IsElement("light"))
{
RTLight l = new RTLight(this);
scene.AddLight(l);
ParserRead();
}
else if (IsElement("texture"))
{
RTTexture t = new RTTexture(this);
scene.AddTexture(t);
ParserRead();
}
else
{
ParserError("Main Parser:");
}
}
else
{
ParserRead();
}
}
mParser.Close();
if (!mHasError)
{
mStatusArea.Text = "Parsing Completed!";
}
}
public void SetCamera(RTCamera c)
{
mCamera = new RT3DCamera(c);
}
public CommandFileParser(String cmdFile, ContentManager meshLoader, System.Windows.Forms.TextBox statusArea, RTCore rt, SceneDatabase scene)
{
mStatusArea = statusArea;
mFullPath = System.IO.Path.GetFullPath(System.IO.Path.GetDirectoryName(cmdFile));
mParser = new XmlTextReader(cmdFile);
mParser.WhitespaceHandling = WhitespaceHandling.None;
ParserRead();
while (!IsEndElement("RayTracer_552"))
{
if (IsElement() && (!IsElement("RayTracer_552")) )
{
if (IsElement("camera"))
{
RTCamera c = new RTCamera(this);
rt.SetCamera(c);
ParserRead();
}
else if (IsElement("sphere"))
{
RTSphere s = new RTSphere(this);
scene.AddGeom(s);
ParserRead();
}
else if (IsElement("rectangle"))
{
RTRectangle r = new RTRectangle(this);
scene.AddGeom(r);
ParserRead();
}
else if (IsElement("triangle"))
{
RTTriangle t = new RTTriangle(this);
scene.AddGeom(t);
ParserRead();
}
else if (IsElement("mesh"))
{
RTTriangle.ParseMeshForTriangles(this, meshLoader, scene);
ParserRead();
}
else if (IsElement("imagespec"))
{
ImageSpec s = new ImageSpec(this);
rt.SetImageSpec(s);
ParserRead();
}
else if (IsElement("rtspec"))
{
rt.Parse(this);
ParserRead();
}
else if (IsElement("material"))
{
RTMaterial m = new RTMaterial(this);
scene.AddMaterial(m);
ParserRead();
}
else if (IsElement("light"))
{
RTLight l = new RTLight(this);
scene.AddLight(l);
ParserRead();
}
else if (IsElement("texture"))
{
RTTexture t = new RTTexture(this);
scene.AddTexture(t);
ParserRead();
}
else
ParserError("Main Parser:");
}
else
ParserRead();
}
mParser.Close();
if (!mHasError)
mStatusArea.Text = "Parsing Completed!";
}
internal void AddRTScene(RayTracer_552.RTCamera c, RayTracer_552.SceneDatabase rtScene)
{
UWB_Primitive prim;
NewSceneDatabase();
SceneResource <RTGeometry> allGeom = rtScene.GetAllGeom();
for (int i = 0; i < allGeom.Count; i++)
{
RTGeometry g = (RTGeometry)allGeom.ResourceLookup(i);
switch (g.GeomType())
{
case RTGeometry.RTGeometryType.Sphere:
RTSphere s = (RTSphere)g;
prim = CreateSphereMesh();
SetMeshMaterial(prim, rtScene.GetMaterial(s.GetMaterialIndex()));
float scale = s.Radius / 2f;
CreateNode(s.Center, scale, scale, scale, prim);
break;
case RTGeometry.RTGeometryType.Rectangle:
RTRectangle r = (RTRectangle)g;
prim = CreateRectangle(r);
SetMeshMaterial(prim, rtScene.GetMaterial(r.GetMaterialIndex()));
UWB_SceneNode node = CreateNode(r.GetCenter(), r.GetUSize() / 2f, 1f, r.GetVSize() / 2f, prim);
// now rotate the y-vector of node to point towards r.Normal;
float dot = (float)Math.Abs(Vector3.Dot(Vector3.UnitY, r.GetNormal()));
if (dot < 0.9999f)
{
float angle = (float)Math.Acos(dot);
Vector3 axis = Vector3.Cross(Vector3.UnitY, r.GetNormal());
axis.Normalize();
Quaternion q = Quaternion.CreateFromAxisAngle(axis, angle);
UWB_XFormInfo xf = node.getXFormInfo();
xf.SetRotationQuat(q);
node.setXFormInfo(xf);
}
break;
case RTGeometry.RTGeometryType.Triangle:
RTTriangle t = (RTTriangle)g;
Vector3[] v = t.GetVertices();
prim = new UWB_PrimitiveTriangle(v[0], v[1], v[2]);
prim.EnableLighting(true);
prim.EnableTexturing(false);
SetMeshMaterial(prim, rtScene.GetMaterial(t.GetMaterialIndex()));
CreateNode(Vector3.Zero, 1f, 1f, 1f, prim);
break;
}
}
AddCamera(c);
AddLights(rtScene);
// to show ray list
mShownRayX = mShownRayY = 0;
mRaysToShow = new UWB_PrimitiveList();
mDebugInfo = new UWB_SceneNode();
mDebugInfo.setPrimitive(mRaysToShow);
mDebugInfo.insertChildNode(mPixelsToShow.GetAllPixels());
mDebugInfo.insertChildNode(mPixelInWorld.GetAllPixels());
}
// Copy Constructor
public RTCamera(RTCamera c)
{
mEye = c.mEye;
mAt = c.mAt;
mUp = c.mUp;
mViewDir = c.mViewDir;
mSideVec = c.mSideVec;
mFOV = c.mFOV;
mFocus = c.mFocus;
mPixeldX = c.mPixeldX;
mPixeldY = c.mPixeldY;
mPixelOrigin = c.mPixelOrigin;
}
public void SetCamera(RTCamera c)
{
mCamera = new RT3DCamera(c);
}