葉の形状を生成します。
//**********************************************************************************
#declare Grass_scale = 3;;
#declare Ellip_seg =
object { sphere { < 0, 0, 0 >, Grass_length
texture { Texture_grass } scale < Grass_scale, Grass_scale/2 , 1 > }
clipped_by { plane { z, 0 } rotate (Grass_width)*x}
clipped_by { plane { z, 0 } rotate (180-Grass_width)*x }
translate < Grass_length*Grass_scale, 0, 0 >
rotate < 0, 15, Grass_slop >
}
//**********************************************************************************
