基于HelixToolkit.SharpDX 渲染3D模型

📰 来源: 博客园

HelixToolkit.SharpDX 是 HelixToolkit 生态中基于 DirectX（DX） 底层能力封装的 .NET 开源 3D 可视化库；DirectX 是微软为 Windows 平台开发的底层多媒体 API，可高效调用显卡、声卡等硬件实现高性能图形渲染，而该库基于此能力，兼容 .NET Framework/.NET Core/.NET 5+ 全平台，专为 Windows 桌面应用提供低门槛、高性能的 3D 渲染，完美适配机械臂可视化、点云处理、设备仿真等工业开发场景；

一、NuGet 包管理器中下载相关包

NuGet 依赖：安装 HelixToolkit.Wpf 和HelixToolkit.SharpDX.Core.Wpf

二、引入HelixToolkit.SharpDX

xmlns:hx="http://helix-toolkit.org/wpf/SharpDX"

MainWindow.xaml

<Window

    x:Class="HelixToolkit.SharpDX.MainWindow"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

    xmlns:hx="http://helix-toolkit.org/wpf/SharpDX"

    xmlns:local="clr-namespace:HelixToolkit.SharpDX"

    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

    xmlns:prism="http://prismlibrary.com/"

    xmlns:ui="http://schemas.inkore.net/lib/ui/wpf/modern"

    xmlns:vm="clr-namespace:HelixToolkit.SharpDX.ViewModels"

    Title="MainWindow"

    Width="800"

    Height="450"

    prism:ViewModelLocator.AutoWireViewModel="True"

    ui:TitleBar.Height="36"

    ui:WindowHelper.SystemBackdropType="Mica"

    ui:WindowHelper.UseModernWindowStyle="True"

    mc:Ignorable="d">

    <Window.DataContext>

        <vm:MainWindowViewModel x:Name="viewModel" />

    </Window.DataContext>

    <Grid>

        <hx:Viewport3DX

            BackgroundColor="Black"

            Camera="{Binding Camera}"

            EffectsManager="{Binding EffectsManager}"

            IsRotationEnabled="True"

            IsShadowMappingEnabled="True"

            RotateAroundMouseDownPoint="True"

            ShowCoordinateSystem="True"

            ShowFrameRate="True"

            ShowViewCube="True"

            ZoomAroundMouseDownPoint="True"

            ZoomExtentsWhenLoaded="True">

            <!--  视口输入绑定：定义鼠标和键盘操作  -->

            <hx:Viewport3DX.InputBindings>

                <!--  Ctrl+E快捷键：缩放至整个模型  -->

                <KeyBinding Command="hx:ViewportCommands.ZoomExtents" Gesture="Control+E" />

                <!--  鼠标右键：旋转视图  -->

                <MouseBinding Command="hx:ViewportCommands.Rotate" Gesture="RightClick" />

                <!--  鼠标中键：缩放视图  -->

                <MouseBinding Command="hx:ViewportCommands.Zoom" Gesture="MiddleClick" />

                <!--  鼠标左键：平移视图  -->

                <MouseBinding Command="hx:ViewportCommands.Pan" Gesture="LeftClick" />

            </hx:Viewport3DX.InputBindings>

            <!--  阴影贴图：定义阴影的渲染参数  -->

            <hx:ShadowMap3D OrthoWidth="200" />

            <!--  环境光：基础照明  -->

            <hx:AmbientLight3D Color="White" />

            <!--  平行光：方向性光源，光线方向向量  -->

            <hx:DirectionalLight3D Direction="50, -200, -100" />
            <!--  批处理网格模型：高效渲染多个几何体  -->

            <hx:BatchedMeshGeometryModel3D

                x:Name="batchedMesh"

                BatchedGeometries="{Binding BatchedMeshes}"

                BatchedMaterials="{Binding BatchedMaterials}"

                CullMode="Back"

                IsThrowingShadow="True"

                Material="{Binding MainMaterial}"

                Mouse3DDown="BatchedMeshGeometryModel3D_Mouse3DDown"

                Transform="{Binding BatchedTransform}" />

            <!--  网格几何体模型：用于高亮显示选中的零件  -->

            <hx:MeshGeometryModel3D

                CullMode="Back"

                DepthBias="-100"

                Geometry="{Binding SelectedGeometry}"

                IsHitTestVisible="False"

                IsThrowingShadow="False"

                Material="{Binding SelectedMaterial}"

                Transform="{Binding SelectedTransf

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