Opening and manipulating a model

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Welcome to VRED.

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Today we will import a model and use the default import settings.

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Click Import.

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A linked wire file has been provided for you to download and use.

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To increase file performance and enhance the rendering process, let's optimize the scene.

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In the Scenegraph, right click the top node of the geometry and select Edit Show Optimize Module.

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You can also activate Optimize module via the Scene menu or through right clicking in the Quick access bar.

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In addition to the default settings, check both Flush Transformation nodes and Cleanup Group Nodes, then click Optimize.

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This optimizes the Scenegraph, removes stored transformations,

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and removes unnecessary or empty group nodes to reduce the number of drawn nodes in the scene.

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Please keep in mind this could destroy your scene graph structure,

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so don't use Clean Up Group Nodes if the structure should not be modified.

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Because bounding is enabled, a bounding box appears around your model which indicates that it is selected.

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Click Wireframe to display the wireframe of the selected component.

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There are several ways to select and deselect objects.

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Shift + left mouse button Click to select an object.

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Shift + right mouse button Click in empty space to deselect all.

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Ctrl + Shift left mouse button Click to select additional objects.

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Ctrl + Shift right mouse button Click to delete additional objects.

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Shift and drag with the left mouse button from the top left to the bottom right to select all items fully inside the selected frame.

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Shift drag the left mouse button from the bottom right to the top left

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to select objects fully or partially inside the selected frame.

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To navigate in the render view, use the left mouse button to rotate, middle mouse button to pan and right mouse button to zoom.

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Double left mouse button click on geometry to set it as the pivot point.

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This does not move the camera.

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Double middle mouse button click on geometry to set the pivot point, then focus and center it in the render view.

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Use this to zoom into small parts quickly.

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Also use this to quickly zoom out when working with large parts.

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This works like selection plus zoom too.

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Double right mouse button Click on Geometry to select the pivot point and center it in the render view.

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Now let's look at the direction of the surface normals to ensure they face the correct direction.

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To display these in VRED, in the visualization menu, select Vertex Face Normal Rendering.

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The colors displayed identify their orientations.

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Green indicates the vertex and face normals are correctly pointed toward the camera.

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Blue surfaces are vertex and face normals pointing away from the camera and need to be flipped for proper rendering results.

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Open the Geometry Editor, use the button face and vertex to flip those.

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Gold indicates inconsistencies where the face normals point away from the camera while the vertex normals point toward the camera.

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Use face surface to flip only those pointing away from the camera.

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Magenta indicates inconsistencies where the face normals point toward the camera and the vertex normals point away from the camera.

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Use vertex to flip the normals so the geometry looks green.

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Red or pink indicate invalid or broken normals.

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This can only be repaired with the recalculation of all normals.

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For more information on the red and pink color definition, check the documentation.

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You can also flip normals of shells and meshes with twisted components and patches using the following hotkeys.

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Alt+left mouse button drag from the top left to the bottom right and close the entire car.

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This flips whole shells depending on the normal direction.

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Parts that are already green won't be flipped.

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Rotate to the opposite view and repeat.

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Use this to flip most normals.

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Ensure to leave the environment Dome blue.

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Alt+middle mouse button drag from left to bottom right or Click to flip only selected components of a shell.

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Alt + right mouse button click, flip only connected components inside a shell.

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This is useful if Alt + left mouse button toggles back and forth as the whole shell with all component flips.

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When normals are facing the camera green, go back to visualization realistic rendering.