internal void AddDebugPixel(RayTracer_552.RTCore rtCore) { if (null == rtCore) return; mPixelsToShow.AddDebugPixel(rtCore, mCameraPosition); }
internal void AddRTKdTree(RayTracer_552.KdTreeNode rootNode) { UWB_SceneNode n = new UWB_SceneNode(); m_SceneDatabase.insertChildNode(n); UWB_PrimitiveList list = new UWB_PrimitiveList(); n.setPrimitive(list); AddBox(rootNode, list); }
internal void AddBox(RayTracer_552.KdTreeNode node, UWB_PrimitiveList list) { defineBox(list, node.Bounds.Min, node.Bounds.Max); if (!node.IsLeafNode()) { AddBox(node.LeftChild, list); AddBox(node.RightChild, list); } }
internal void AddDebugRays(RayTracer_552.RTCore rtCore) { if (null == rtCore) return; while ((mShownRayY < rtCore.CurrentY) || (((mShownRayY == rtCore.CurrentY) && (mShownRayX < rtCore.CurrentX)))) { lock (rtCore) { Vector3 p = new Vector3(); System.Drawing.Color c = new System.Drawing.Color(); float dist; rtCore.GetPixelValues(mShownRayX, mShownRayY, out p, out c, out dist); if (rtCore.DisplayDebugRays()) { UWB_PrimitiveLine line = new UWB_PrimitiveLine(); Vector3 v = p - mCameraPosition; float len = v.Length(); v /= len; if (dist > (float.MaxValue / 2f)) dist = len; p = mCameraPosition + dist * v; line.setStartPoint(mCameraPosition.X, mCameraPosition.Y, mCameraPosition.Z); line.setEndPoint(p.X, p.Y, p.Z); line.Material.Diffuse = Vector4.Zero; line.Material.Specular = Vector4.Zero; line.Material.Ambient = Vector4.Zero; line.Material.Emissive = Vector4.One; mRaysToShow.append(line); } mShownRayX++; if (mShownRayX >= rtCore.ImageWidth) { mShownRayX = 0; mShownRayY++; } } } }
private void SetMeshMaterial(UWB_Primitive prim, RayTracer_552.RTMaterial mat) { prim.EnableLighting(true); prim.setShadeMode(eShadeMode.smGouraud); prim.Material.Emissive = new Vector4(Vector3.Zero, 1f); prim.Material.Ambient = new Vector4(mat.GetAmbientColor, 1f); prim.Material.Diffuse = new Vector4(mat.GetDiffuseColor, 1f); prim.Material.Specular = new Vector4(mat.GetSpecularColor, 1f); prim.Material.Power = mat.GetN; }
private void AddLights(RayTracer_552.SceneDatabase rtScene) { UWB_XNAGraphicsDevice.m_TheAPI.LightManager.ResetAllLights(); for (int l = 0; l < rtScene.GetNumLights(); l++) { RTLight lgt = rtScene.GetLight(l); Vector4 useColor = new Vector4(lgt.GetColor(new Vector3(0,0,0)),1f); UWB_XNALight theLight = null; if (lgt.GetLightSourceType() == RTLightType.RTLightSourceType.RTLightSourceTypeDirection) { theLight = UWB_XNAGraphicsDevice.m_TheAPI.LightManager.CreateDirectionalLight(); } else if (lgt.GetLightSourceType() == RTLightType.RTLightSourceType.RTLightSourceTypeSpot) { theLight = UWB_XNAGraphicsDevice.m_TheAPI.LightManager.CreateSpotLight(); } else { theLight = UWB_XNAGraphicsDevice.m_TheAPI.LightManager.CreatePointLight(); } theLight.Ambient = Vector4.Zero; theLight.Diffuse = useColor; theLight.Specular = useColor; theLight.Position = lgt.GetLightPosition(); theLight.Direction = -lgt.GetNormalizedDirection(Vector3.Zero); theLight.Color = useColor; theLight.Attenuation = new Vector3(1f, 0.0f, 0.0f); theLight.Range = 10000f; theLight.SwitchOnLight(); UWB_Primitive prim = CreateSphereMesh(); SetMeshMaterial(prim, rtScene.GetMaterial(0)); float scale = 0.25f; CreateNode(lgt.GetLightPosition(), scale, scale, scale, prim); } }
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); }
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()); }
internal void AddImageFrame(RayTracer_552.RTCore rtCore) { if (null == rtCore) return; // construct the image frame Vector3 tl = rtCore.GetTopLeftPixelPosition(); Vector3 tr = rtCore.GetTopRightPixelPosition(); Vector3 bl = rtCore.GetBottomLeftPixelPosition(); Vector3 br = rtCore.GetBottomRightPixelPosition(); UWB_PrimitiveLine t, b, l, r; t = new UWB_PrimitiveLine(); b = new UWB_PrimitiveLine(); l = new UWB_PrimitiveLine(); r = new UWB_PrimitiveLine(); t.setStartPoint(tr.X, tr.Y, tr.Z); t.setEndPoint(tl.X, tl.Y, tl.Z); t.Material.Emissive = Vector4.UnitX; l.setStartPoint(tl.X, tl.Y, tl.Z); l.setEndPoint(bl.X, bl.Y, bl.Z); l.Material.Emissive = Vector4.UnitX; b.setStartPoint(br.X, br.Y, br.Z); b.setEndPoint(bl.X, bl.Y, bl.Z); b.Material.Emissive = Vector4.UnitX; r.setStartPoint(tr.X, tr.Y, tr.Z); r.setEndPoint(br.X, br.Y, br.Z); r.Material.Emissive = Vector4.UnitX; mCameraPrimitives.append(t); mCameraPrimitives.append(b); mCameraPrimitives.append(l); mCameraPrimitives.append(r); }