09-23-2023, 11:58 AM
Reflected light would still influence it, just a different take on it. There's no sunlit sand in yet so I just went pretty basic. I think the darkest planes would realistically be the 'column' of the rock in shadow since the ground would light the underside. I would maybe look at some reference to clarify what you want to do there, it's up to you.
if an object is rotated or tilted it requires either new vanishing points, or there are other tricks. But keep in mind you don't really need to use that type of perspective construction at all for something like rocks. You would need new vanishing points if lets say you had a chair rotated a bit, and you wanted another chair with the same rotation. or a slanted roof, and you need another roof with same tilt. Perspective with organic objects is more about helping to visualize the underlying geometry, and make a sense of space. so i wouldn't worry about that stuff too much.
if an object is rotated or tilted it requires either new vanishing points, or there are other tricks. But keep in mind you don't really need to use that type of perspective construction at all for something like rocks. You would need new vanishing points if lets say you had a chair rotated a bit, and you wanted another chair with the same rotation. or a slanted roof, and you need another roof with same tilt. Perspective with organic objects is more about helping to visualize the underlying geometry, and make a sense of space. so i wouldn't worry about that stuff too much.