Horizon science of graphical perspective. Assuming the picture plane stands vertical to ground, and "P" is the perpendicular projection of the eye point "O" on the picture plane, the horizon is defined as the horizontal line through "P". The point "P" is the vanishing point of lines perpendicular to the picture. If "S" is another point on the horizon, then it is the vanishing point for all lines parallel to "OS". But Brook Taylor (1719) indicated that the horizon plane determined by "O" and the horizon was like any other plane: The peculiar geometry of perspective where parallel lines converge in
The Colossus (painting) crowd. The effect of the light, which possibly indicates sunset, surrounds and highlights the clouds that encircle the giant's waist as described in Arriaza's poem: This slanting light is fractured and interrupted by the mountain peaks increasing the sensation of disequilibrium and disorder. The effect is similar to Luis de Góngora's famous "dubious daylight" ("Fable of Polyphemus and Galatea" v. 72.). Instead of a centripetal composition where all the indications point towards a central nucleus, in this painting all the lines of movement shatter the unity of the image into multiple paths towards its margins. The painting can be considered