character and statue model added

Assets/3_MarathonEnvs/Textures/ground.mat

@@ -13,11 +13,12 @@ Material:
   m_ModifiedSerializedProperties: 0
   m_ValidKeywords:
   - _DISABLE_SSR_TRANSPARENT
+  - _DOUBLESIDED_ON
   - _NORMALMAP_TANGENT_SPACE
   m_InvalidKeywords: []
   m_LightmapFlags: 4
   m_EnableInstancingVariants: 0
-  m_DoubleSidedGI: 0
+  m_DoubleSidedGI: 1
   m_CustomRenderQueue: 2225
   stringTagMap:
     MotionVector: User
@@ -163,8 +164,8 @@ Material:
     - _BlendMode: 0
     - _CoatMask: 0
     - _ConservativeDepthOffsetEnable: 0
-    - _CullMode: 2
-    - _CullModeForward: 2
+    - _CullMode: 0
+    - _CullModeForward: 0
     - _Cutoff: 0.5
     - _DepthOffsetEnable: 0
     - _DetailAlbedoScale: 1
@@ -175,7 +176,7 @@ Material:
     - _DisplacementLockObjectScale: 1
     - _DisplacementLockTilingScale: 1
     - _DisplacementMode: 0
-    - _DoubleSidedEnable: 0
+    - _DoubleSidedEnable: 1
     - _DoubleSidedGIMode: 0
     - _DoubleSidedNormalMode: 1
     - _DstBlend: 0