Spheres for Skies

-Added: SkySphere a full sphere skyBox
-Change: ScatterSky now renders a dome instead of the top face of a cubeSphere
-Change: Creator now has skySphere

TODO: Simplify sphere creation
PossibleMethod: Add the sphere creation functions to one place to be shared around.

Engine/source/environment/skySphere.h

@@ -0,0 +1,172 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _SKYSPHERE_H_
+#define _SKYSPHERE_H_
+
+#ifndef _SCENEOBJECT_H_
+#include "scene/sceneObject.h"
+#endif
+
+#ifndef _GFXDEVICE_H_
+#include "gfx/gfxDevice.h"
+#endif
+
+#ifndef _CUBEMAPDATA_H_
+#include "gfx/sim/cubemapData.h"
+#endif
+
+#ifndef _MATERIALLIST_H_
+#include "materials/materialList.h"
+#endif
+
+#ifndef _GFXVERTEXBUFFER_H_
+#include "gfx/gfxVertexBuffer.h"
+#endif
+
+#ifndef _GFXPRIMITIVEBUFFER_H_
+#include "gfx/gfxPrimitiveBuffer.h"
+#endif
+
+#include "T3D/assets/MaterialAsset.h"
+
+struct SkyMatParams
+{
+   void init(BaseMatInstance* matInst) {};
+};
+
+class MatrixSet;
+
+class SkySphere : public SceneObject
+{
+   typedef SceneObject Parent;
+
+public:
+
+   SkySphere();
+   virtual ~SkySphere();
+
+   DECLARE_CONOBJECT(SkySphere);
+
+   // SimObject
+   void onStaticModified(const char* slotName, const char* newValue);
+
+   // ConsoleObject
+   virtual bool onAdd();
+   virtual void onRemove();
+   static void initPersistFields();
+   virtual void inspectPostApply();
+
+   // NetObject
+   virtual U32 packUpdate(NetConnection* conn, U32 mask, BitStream* stream);
+   virtual void unpackUpdate(NetConnection* conn, BitStream* stream);
+
+   // SceneObject
+   void prepRenderImage(SceneRenderState* state);
+
+   /// Our render delegate.
+   void _renderObject(ObjectRenderInst* ri, SceneRenderState* state, BaseMatInstance* mi);
+
+   void clearVectors();
+
+   void addVertex(Point3F vert);
+
+   void addNormal(Point3F nor);
+
+   void addTexcoord(F32 s, F32 t);
+
+   void addColor(ColorI col);
+
+   void BuildFinalVert();
+
+   void BuildFinalFogVert();
+
+   /// Prepares rendering structures and geometry.
+   void _initRender();
+
+   struct SphereVertex
+   {
+      Point3F pos;
+      Point3F nor;
+      F32 s, t;
+   };
+
+   Vector<SphereVertex> tmpVertices;
+   Vector<F32> vertsVec;
+   Vector<F32> texCoordVec;
+   Vector<F32> normsVec;
+
+   struct FinalVertexData
+   {
+      Point3F pos;
+      Point3F nor;
+      F32 s;
+      F32 t;
+   };
+
+   Vector<FinalVertexData> finalVertData;
+
+   struct FogVertex
+   {
+      // might need normals for smoothing.
+      Point3F pos;
+      ColorI col;
+   };
+
+   Vector<FogVertex> finalFogVertex;
+   Vector<FogVertex> tempFogVertex;
+   Vector<ColorI> colVec;
+   Vector<F32> fogVerts;
+
+protected:
+
+   // Material
+   DECLARE_MATERIALASSET(SkySphere, Material);
+   DECLARE_ASSET_NET_SETGET(SkySphere, Material, -1);
+
+   BaseMatInstance* mMatInstance;
+   SkyMatParams mMatParamHandle;
+
+   GFXVertexBufferHandle<GFXVertexPNT> mVB;
+
+   GFXVertexBufferHandle<GFXVertexPC> mFogBandVB;
+   Material* mFogBandMat;
+   BaseMatInstance* mFogBandMatInst;
+
+   LinearColorF mLastFogColor;
+
+   bool mIsVBDirty;
+   U32 mPrimCount;
+
+   MatrixSet* mMatrixSet;
+
+   F32 mFogBandHeight;
+   U32 mFogPrimCount;
+
+   void _updateMaterial();
+   void _initMaterial();
+
+   BaseMatInstance* _getMaterialInstance();
+
+};
+
+#endif