Create a Tron-inspired light cycle effect in Blender

Open start.blend from this Q&A’s project files. Select View > Top, then select Add > Curve > Path. Press [Alt]+[G] and select Clear location. Select the Ipo Curve Editor; switch IPO type from Object to Path, then press [Delete] and choose Erase selected to remove the default animation curve. Return to 3D View and press [Tab] for Edit Mode.

Edit the Path until you like the shape by pushing points around, extruding or subdividing. The arrows on the Path indicate its direction. Select the first Point on the Path; press [Shift]+[S] and choose Cursor -> Selection, then press [Tab]. In the Editing Context of the Buttons Window, select Curve and Surface tab > Center Cursor. Return to the 3D View.

Without moving the 3D Cursor, select Add > Mesh > Cube. Choose View > Front. Press [Tab] for Edit Mode. Model a cube or select a pre-prepared object.

Select Object Mode. In Editing Buttons, click Add Modifier and add an Array. Set Fixed Count to Fit To Curve Length and Ob: to Curve. Set Relative Offset X to 0 and Y to 1, then click Apply. Add a Subsurf Modifier and set its type to Simple Subdiv.

In the 3D View, select Top View and press [Tab] for Edit Mode. Select Add > Plane, press [S] and scale it down slightly, then press [G] and move it to the front of the Path. Ensure all its Points are on the ground level by setting Median Z in Transform Properties to 0, then press [X] and select Only Faces. Select the two front Points, press [Alt]+[M] and select At Center to form a triangle. Add the back two Points to the selection. Press [Shift]+[S] and select Cursor -> Selection to snap the 3D Cursor to this location.

Press [Tab], then Add > Empty. In the Editing Buttons, change Empty’s Display to Cube. [Shift]-select the triangular mesh then, in Edit Mode, press [Ctrl]+[P] and choose Make vertex parent. Return to Object Mode. Select Add > Empty then select the Empty and press [Ctrl]+[Alt]+[C] and choose Copy Location.

Press [Ctrl]+[Alt]+[C] again and choose Copy Rotation. Position the LightCycle so it appears to be emitting the trail. Select the LightCycle followed by the new Empty, then press [Ctrl]+[P] and select make parent.

Select the trail. Add a Curve Modifier; set Ob: to Curve, then enable Y. Press [S] then [Y] and scale the trail on its Y axis to create the trail effect. You can animate this value.

Words: Bassam Kurdali

Bassam is an animator and filmmaker. He is currently working on the animated short Tube:

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