3D Web · Exercise 4 of 4 Previous
Intermediate
Build the rear triangle
The scene has a tubeBetween helper and the bike's down tube. Add the two pairs of stays to the bike group: a group named chain-stays (bottom bracket to rear axle) and a group named seat-stays (seat cluster to rear axle).
Each group holds two tubes at z = −0.055 and z = +0.055, radius 0.013 for the chain stays and 0.012 for the seat stays. Keep the whole scene within 10 draw calls.
What Check tests
- Groups named chain-stays and seat-stays, each with 2 tubes
- Chain stays: middles at (−0.275, 0.325, ±0.055)
- Seat stays: middles at (−0.325, 0.585, ±0.055)
- A chain stay is as long as the distance, 0.5523 m
- At most 10 draw calls
Stuck? One hint at a time
The solution unlocks after your first Check. Try first: that is where the learning happens.
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