Yes, it was my resource for this video. After reading his writings a few more times, I finally got it in my mind. I have read more confusing literature (John Montague) regarding the inverted sunlight Vanishing Point.
I shall make a video tutorial about that. Just imagine a ghost volume extruded underneath the object to the ground (like that extra volume I showed in this video). With the floating object, you will have to plot the shadow cast of its bottom edges first, and then the top edges later on. Just remember that the 3 line elements of the light triangle - the vertical edge, shadow direction, and the light direction have each of their respective Vanishing Points.
Hmmm, good question. I rarely do 3-point perspective drawing. The variation or difference would be just the vertical lines (blue) vanishing to a point far away. The shadow castings should be very similar, and the light triangle of the vertical line, shadow direction line and light direction line are still implemented like shown.
Super helpful, thank you. The explanation in Scott Robertsons "How to Render" was kind of confusing, and you cleared it all up for me
Yes, it was my resource for this video. After reading his writings a few more times, I finally got it in my mind. I have read more confusing literature (John Montague) regarding the inverted sunlight Vanishing Point.
Nice tutorial
the only tutorial ive seen for this after losing my mind trying to figure it out. Good video, what happens for a floating object?
I shall make a video tutorial about that. Just imagine a ghost volume extruded underneath the object to the ground (like that extra volume I showed in this video). With the floating object, you will have to plot the shadow cast of its bottom edges first, and then the top edges later on. Just remember that the 3 line elements of the light triangle - the vertical edge, shadow direction, and the light direction have each of their respective Vanishing Points.
Great video. TY. Does the shadow change if the drawing is in 3 point perspective?
Hmmm, good question. I rarely do 3-point perspective drawing. The variation or difference would be just the vertical lines (blue) vanishing to a point far away. The shadow castings should be very similar, and the light triangle of the vertical line, shadow direction line and light direction line are still implemented like shown.
How to find an actual light source based on the shadow and the "pseudo" source?
Can you elaborate more?