introduce a ODEMeshWorker class, should be pure cosmetic changes for now

1 files changed, 199 insertions, 0 deletions

diff --git a/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs b/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs
new file mode 100644
index 0000000..81d59a6
--- /dev/null
+++ b/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs
@@ -0,0 +1,199 @@
+/*
+ * AJLDuarte 2012
+ */
+
+using System;
+using System.Threading;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Text;
+using OpenSim.Framework;
+using OpenSim.Region.Physics.Manager;
+using OdeAPI;
+using log4net;
+using Nini.Config;
+using OpenMetaverse;
+
+namespace OpenSim.Region.Physics.OdePlugin
+{
+    public class ODEMeshWorker
+    {
+        private ILog m_log;
+        private OdeScene m_scene;
+        private IMesher m_mesher;
+
+        public bool meshSculptedPrim = true;
+        public bool forceSimplePrimMeshing = false;
+        public float meshSculptLOD = 32;
+        public float MeshSculptphysicalLOD = 32;
+
+
+        public ODEMeshWorker(OdeScene pScene, ILog pLog, IMesher pMesher, IConfig pConfig)
+        {
+            m_scene = pScene;
+            m_log = pLog;
+            m_mesher = pMesher;
+
+            if (pConfig != null)
+            {
+                forceSimplePrimMeshing = pConfig.GetBoolean("force_simple_prim_meshing", forceSimplePrimMeshing);
+                meshSculptedPrim = pConfig.GetBoolean("mesh_sculpted_prim", meshSculptedPrim);
+                meshSculptLOD = pConfig.GetFloat("mesh_lod", meshSculptLOD);
+                MeshSculptphysicalLOD = pConfig.GetFloat("mesh_physical_lod", MeshSculptphysicalLOD);
+            }
+        }
+
+
+
+        /// <summary>
+        /// Routine to figure out if we need to mesh this prim with our mesher
+        /// </summary>
+        /// <param name="pbs"></param>
+        /// <returns></returns>
+        public bool needsMeshing(PrimitiveBaseShape pbs)
+        {
+            // check sculpts or meshs 
+            if (pbs.SculptEntry)
+            {
+                if (meshSculptedPrim)
+                    return true;
+
+                if (pbs.SculptType == (byte)SculptType.Mesh) // always do meshs
+                    return true;
+
+                return false;
+            }
+
+            if (forceSimplePrimMeshing)
+                return true;
+
+            // if it's a standard box or sphere with no cuts, hollows, twist or top shear, return false since ODE can use an internal representation for the prim
+
+            if ((pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight)
+                    || (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1
+                    && pbs.Scale.X == pbs.Scale.Y && pbs.Scale.Y == pbs.Scale.Z))
+            {
+
+                if (pbs.ProfileBegin == 0 && pbs.ProfileEnd == 0
+                    && pbs.ProfileHollow == 0
+                    && pbs.PathTwist == 0 && pbs.PathTwistBegin == 0
+                    && pbs.PathBegin == 0 && pbs.PathEnd == 0
+                    && pbs.PathTaperX == 0 && pbs.PathTaperY == 0
+                    && pbs.PathScaleX == 100 && pbs.PathScaleY == 100
+                    && pbs.PathShearX == 0 && pbs.PathShearY == 0)
+                {
+                    return false;
+                }
+            }
+
+            //  following code doesn't give meshs to boxes and spheres ever
+            // and it's odd..  so for now just return true if asked to force meshs
+            // hopefully mesher will fail if doesn't suport so things still get basic boxes
+
+            int iPropertiesNotSupportedDefault = 0;
+
+            if (pbs.ProfileHollow != 0)
+                iPropertiesNotSupportedDefault++;
+
+            if ((pbs.PathBegin != 0) || pbs.PathEnd != 0)
+                iPropertiesNotSupportedDefault++;
+
+            if ((pbs.PathTwistBegin != 0) || (pbs.PathTwist != 0))
+                iPropertiesNotSupportedDefault++;
+
+            if ((pbs.ProfileBegin != 0) || pbs.ProfileEnd != 0)
+                iPropertiesNotSupportedDefault++;
+
+            if ((pbs.PathScaleX != 100) || (pbs.PathScaleY != 100))
+                iPropertiesNotSupportedDefault++;
+
+            if ((pbs.PathShearX != 0) || (pbs.PathShearY != 0))
+                iPropertiesNotSupportedDefault++;
+
+            if (pbs.ProfileShape == ProfileShape.Circle && pbs.PathCurve == (byte)Extrusion.Straight)
+                iPropertiesNotSupportedDefault++;
+
+            if (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1 && (pbs.Scale.X != pbs.Scale.Y || pbs.Scale.Y != pbs.Scale.Z || pbs.Scale.Z != pbs.Scale.X))
+                iPropertiesNotSupportedDefault++;
+
+            if (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1)
+                iPropertiesNotSupportedDefault++;
+
+            // test for torus
+            if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.Square)
+            {
+                if (pbs.PathCurve == (byte)Extrusion.Curve1)
+                {
+                    iPropertiesNotSupportedDefault++;
+                }
+            }
+            else if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
+            {
+                if (pbs.PathCurve == (byte)Extrusion.Straight)
+                {
+                    iPropertiesNotSupportedDefault++;
+                }
+
+                // ProfileCurve seems to combine hole shape and profile curve so we need to only compare against the lower 3 bits
+                else if (pbs.PathCurve == (byte)Extrusion.Curve1)
+                {
+                    iPropertiesNotSupportedDefault++;
+                }
+            }
+            else if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
+            {
+                if (pbs.PathCurve == (byte)Extrusion.Curve1 || pbs.PathCurve == (byte)Extrusion.Curve2)
+                {
+                    iPropertiesNotSupportedDefault++;
+                }
+            }
+            else if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
+            {
+                if (pbs.PathCurve == (byte)Extrusion.Straight)
+                {
+                    iPropertiesNotSupportedDefault++;
+                }
+                else if (pbs.PathCurve == (byte)Extrusion.Curve1)
+                {
+                    iPropertiesNotSupportedDefault++;
+                }
+            }
+
+            if (iPropertiesNotSupportedDefault == 0)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public IMesh getMesh(PhysicsActor actor, PrimitiveBaseShape ppbs, Vector3 psize, byte pshapetype)
+        {
+            if (!(actor is OdePrim))
+                return null;
+
+            IMesh mesh = null;
+            PrimitiveBaseShape pbs = ppbs;
+            Vector3 size = psize;
+            byte shapetype = pshapetype;
+
+            if (needsMeshing(pbs) && (pbs.SculptData.Length > 0))
+            {
+                bool convex;
+                int clod = (int)LevelOfDetail.High;
+                if (shapetype == 0)
+                    convex = false;
+                else
+                {
+                    convex = true;
+                    if (pbs.SculptType != (byte)SculptType.Mesh)
+                        clod = (int)LevelOfDetail.Low;
+                }
+                mesh = m_mesher.CreateMesh(actor.Name, pbs, size, clod, true, convex);
+                if(mesh == null)
+                    mesh = m_mesher.CreateMesh(actor.Name, pbs, size, clod, true, convex);
+            }
+            return mesh;
+        }
+    }
+}
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