public void Update(float dt)
 {
     if (!DisableTextureAnimation && !m_subsystemTime.FixedTimeStep.HasValue)
     {
         float dt2 = (float)MathUtils.Min(m_subsystemTime.GameTime - m_lastAnimateGameTime, 1.0);
         m_lastAnimateGameTime = m_subsystemTime.GameTime;
         Texture2D blocksTexture = m_subsystemBlocksTexture.BlocksTexture;
         if (m_animatedBlocksTexture == null || m_animatedBlocksTexture.Width != blocksTexture.Width || m_animatedBlocksTexture.Height != blocksTexture.Height || m_animatedBlocksTexture.MipLevelsCount > 1 != SettingsManager.TerrainMipmapsEnabled)
         {
             Utilities.Dispose(ref m_animatedBlocksTexture);
             m_animatedBlocksTexture = new RenderTarget2D(blocksTexture.Width, blocksTexture.Height, (!SettingsManager.TerrainMipmapsEnabled) ? 1 : 4, ColorFormat.Rgba8888, DepthFormat.None);
         }
         Rectangle      scissorRectangle = Display.ScissorRectangle;
         RenderTarget2D renderTarget     = Display.RenderTarget;
         Display.RenderTarget = m_animatedBlocksTexture;
         try
         {
             Display.Clear(new Vector4(Color.Transparent));
             m_primitivesRenderer.TexturedBatch(blocksTexture, useAlphaTest: false, -1, DepthStencilState.None, RasterizerState.CullNone, BlendState.Opaque, SamplerState.PointClamp).QueueQuad(new Vector2(0f, 0f), new Vector2(m_animatedBlocksTexture.Width, m_animatedBlocksTexture.Height), 0f, Vector2.Zero, Vector2.One, Color.White);
             AnimateWaterBlocksTexture();
             AnimateMagmaBlocksTexture();
             m_primitivesRenderer.Flush();
             Display.ScissorRectangle = AnimateFireBlocksTexture(dt2);
             m_primitivesRenderer.Flush();
         }
         finally
         {
             Display.RenderTarget     = renderTarget;
             Display.ScissorRectangle = scissorRectangle;
         }
         if (SettingsManager.TerrainMipmapsEnabled && Time.FrameIndex % 2 == 0)
         {
             m_animatedBlocksTexture.GenerateMipMaps();
         }
     }
 }