Choose an example: twoPointX spineFlip spineFlipCollinear web3dEdgeCase rotations CircleFishPrototype TexCircleFishPrototype web3dExtrusionTests points2500 multiscaling torus mountain --seeva-- extrusionBasic extrusionCoin extrusionDirections extrusionDirY extrusionNoDir extrusionScaleOrient extrusionTextures extrusionThreeCoin --Please choose a x3d scene--