[Scripts] Small fix on XRay binding in GraphicsAPI and add option readOnly in the SofaRigidMapper to control SOFA object (#211)

* Add readOnly mode to the SofaRigidMapper

* [GraphicsAPI] Small fix on XRay binding

Author: epernod

Core/Plugins/SofaUnityAPI/GraphicAPI/SofaGraphicAPI.cs

@@ -19,7 +19,7 @@ public void Dispose()
         public static extern int AddRenderEvent_SetPluginTexture(System.IntPtr simuContext, System.IntPtr texture, int w, int h, string objectName);
 
         [DllImport("VirtualXRay")]
-        public static extern int AddRenderEvent_SetVirtualXRayTexture(System.IntPtr simuContext, System.IntPtr texture, int w, int h, string objectName);
+        public static extern int AddRenderEvent_SetVirtualXRayTexture(System.IntPtr simuContext, System.IntPtr texture, int w, int h, string objectName, int graphicsType);
 
         [DllImport("ImagingUS")]
         public static extern int AddRenderEvent_SetImagingUSTexture(System.IntPtr simuContext, System.IntPtr texture, int w, int h, string objectName, int graphicsType);

Core/Scripts/Modules/Controllers/SofaRigidMapper.cs

@@ -9,6 +9,7 @@ namespace SofaUnity
     public class SofaRigidMapper : MonoBehaviour
     {
         public SofaMesh m_sofaMesh = null;
+        public bool m_isReadOnly = false;
 
         private bool m_updatedFromSofa = true;
 
@@ -51,11 +52,20 @@ void FixedUpdate()
             if (!m_ready)
                 return;
 
-            if (m_updatedFromSofa) {
+            if (m_isReadOnly)
+            {
                 UpdateFromSofa();
             }
+            else 
+            {
+                if (m_updatedFromSofa)
+                {
+                    UpdateFromSofa();
+                    m_updatedFromSofa = false;
+                }
 
-            UpdateToSofa();
+                UpdateToSofa();
+            }
         }
 
 
@@ -77,8 +87,6 @@ protected void UpdateFromSofa()
 
             // Combine current rotation with SofaContext one
             this.transform.rotation = m_sofaMesh.m_sofaContext.transform.rotation * this.transform.rotation;
-
-            m_updatedFromSofa = false;
         }