use PostEffectMeshBorderHighlight zoom delay

[lif-enable]

I use PostEffectMeshBorderHighlight display mesh outline, meshnode count >1000， There is a significant delay when zoom scene code `<hx:Viewport3DX Grid.Column="0" Grid.Row="0"

        x:Name="view1"
        Camera="{Binding Camera}"
        EffectsManager="{Binding EffectsManager}"
        Title="{Binding Title}"
        SubTitle="{Binding SubTitle}"
            InfoForeground="Blue"

        ShowCoordinateSystem="True"

        EnableDesignModeRendering="true"
            IsInertiaEnabled="True"

        EnableRenderOrder="True"
        EnableMouseButtonHitTest="True"
         IsManipulationEnabled="False"
            ShowCameraInfo="False"
            ShowCameraTarget="False"
       MSAA="Disable" 
                 EnableSwapChainRendering="True"
        FXAALevel="Low" 
        FixedRotationPoint="{Binding ModelCentroid}"
        FixedRotationPointEnabled="True" 
            EnableRenderFrustum="True"
            UseDefaultGestures="False"  
                >

                <hx:Viewport3DX.InputBindings>
                    <KeyBinding Key="B" Command="hx:ViewportCommands.BackView" />
                    <KeyBinding Key="F" Command="hx:ViewportCommands.FrontView" />
                    <KeyBinding Key="U" Command="hx:ViewportCommands.TopView" />
                    <KeyBinding Key="D" Command="hx:ViewportCommands.BottomView" />
                    <KeyBinding Key="L" Command="hx:ViewportCommands.LeftView" />
                    <KeyBinding Key="R" Command="hx:ViewportCommands.RightView" />
                    <KeyBinding Command="hx:ViewportCommands.ZoomExtents" Gesture="Control+E" />
                    <MouseBinding Command="hx:ViewportCommands.Rotate" Gesture="RightClick" />
                    <MouseBinding Command="hx:ViewportCommands.Zoom" Gesture="MiddleClick" />
                    <MouseBinding Command="hx:ViewportCommands.Pan" Gesture="LeftClick" />
                </hx:Viewport3DX.InputBindings>

                <hx:AmbientLight3D Color="White" /> 

                <hx:PostEffectMeshBorderHighlight
                        DrawMode="Separated"

                        EffectName="highlight"
                        IsHitTestVisible="False"   />
                <hx:PostEffectMeshOutlineBlur

                        NumberOfBlurPass="2"
                        EffectName="blur"
                        IsHitTestVisible="False"   />
                <hx:Element3DPresenter    Content="{Binding GroupModel}"   >

                </hx:Element3DPresenter>

            </hx:Viewport3DX>

`

[holance]

You need to reduce number of mesh nodes. No sure why you need to highlight so many of them. Could you provide more context of what you are trying to do?

[lif-enable]

model is a machine with shell 、parts 。。。。,and user need click some inner face to set params 。

[lif-enable]

I use material opacity + border help user find face

[holance]

What's the graphics card are you using?

[lif-enable]

NV T600 Laptop

[holance]

Make sure your program is running on the external graphics card.

[holance]

Also if you set draw mode to separate, it's gonna be much slower.

[lif-enable]

Make sure your program is running on the external graphics card.

yes,i disabled inter graphics card

[lif-enable]

Also if you set draw mode to separate, it's gonna be much slower. if I create some groupnode , how to display groupnode border?

[holance]

Group border is not supported at this moment.