Don't crash if some shaders are missing

Use DX10 path always and just return nullptr

src/Layers/xrRender/ResourceManager.cpp

@@ -55,26 +55,14 @@ IBlender* CResourceManager::_GetBlender(LPCSTR Name)
 
  LPSTR N = LPSTR(Name);
  map_Blender::iterator I = m_blenders.find(N);
-#ifdef _EDITOR
- if (I == m_blenders.end())
- return 0;
-#else
-// TODO: DX10: When all shaders are ready switch to common path
-#if defined(USE_DX10) || defined(USE_DX11)
- if (I == m_blenders.end())
- {
- Msg("DX10: Shader '%s' not found in library.", Name);
- return 0;
- }
-#endif
+
  if (I == m_blenders.end())
  {
- xrDebug::Fatal(DEBUG_INFO, "Shader '%s' not found in library.", Name);
+ Msg("! Shader '%s' not found in library.", Name);
  return nullptr;
  }
-#endif
- else
- return I->second;
+
+ return I->second;
 }
 
 IBlender* CResourceManager::_FindBlender(LPCSTR Name)
@@ -274,16 +262,10 @@ Shader* CResourceManager::_cpp_Create(LPCSTR s_shader, LPCSTR s_textures, LPCSTR
 {
  if (!GEnv.isDedicatedServer)
  {
-// TODO: DX10: When all shaders are ready switch to common path
-#if defined(USE_DX10) || defined(USE_DX11)
  IBlender* pBlender = _GetBlender(s_shader ? s_shader : "null");
  if (!pBlender)
  return nullptr;
  return _cpp_Create(pBlender, s_shader, s_textures, s_constants, s_matrices);
-#else // USE_DX10
- return _cpp_Create(_GetBlender(s_shader ? s_shader : "null"), s_shader, s_textures, s_constants, s_matrices);
-#endif // USE_DX10
- //#else
  }
  return nullptr;
 }