05-11-2015, 01:26 AM
Ray Mitcham Wrote:Yes, you misunderstand my suggestion of imagining the position of the poles.
Imagine the sun is behind you. In front of you approximately thirty feet apart are two 100' poles. You are standing on the midline of the poles
Do you think the shadow of the poles will appear to
a) diverge - yes, the shadow of these poles on a flat surface will appear to diverge due to vanishing point 3d reality
b) stay parallel - n/a
c) converge. - n/a
David, vertical shadows will always appear to converge on the vanishing point whether it is towards the sun or away from the sun as the viewer stands.
If you mean "shadows of vertical objects" will appear to converge just like the shadows in the image I posted of the 4 people and the road.
In reality we both agree that the road does not narrow and the shadows do not converge except at a point back to the horizon under the sun.
I have shown you a number of photos which show this. You have yet to show me one where the shadows do not converge when the sun is behind the viewer.
And the reason for that is Vanishing Point physics of vision and by default photographs. Anything that extends towards the horizon in a 3D world will appear to converge.
The more important thing is the distances we are talking about. In the BYP there is no reason the post and Oswald's shadow are not nearly parallel.
the fact they are at such a sever angle to each other indicated to me there was something up. Then we look at the ghost and repaste we see the exact spots I speak of are the boundaries for that image.
The information between those lines is different than the photographic information outside them, especially on the left of the photo.
Ray - if you want to claim those shadows work and are consistent with a same image, vanishing point shadow convergence... I think you're wrong.
I think we should see a nice, dark post shadow laying in exactly the same angle from the post as the Oswald shadow is to Oswald.
It doesn't.
So instead of trying to teachme something I already know about photos, perspective, light and shadow - either agree with the analysis or prove me wrong.
Take a photo with two objects of the same size less than 3 feet apart at about 3:30 in the afternoon and show me how the shadows behave the same as the BYPs...
I believe we are on the same side of the coin here and disagree about an issue (vanishing point physics) that has no bearing on the images at hand.
Thanks
DJ
Once in a while you get shown the light
in the strangest of places if you look at it right..... R. Hunter
in the strangest of places if you look at it right..... R. Hunter

