By: Louise

Louise — Mon, 16 Apr 2018 22:56:03 +0000

do you have a class on drawing a split gable roof on a house, I have a neighbor who home is a split gable roof and a closed in porch.

By: Anthony Nicholls

Anthony Nicholls — Wed, 05 Apr 2017 02:53:00 +0000

Anthony Nicholls
Your illustration above showing three point perspective is in fact two point angular perspective with an introduced vertical convergence point. The introduced vertical convergece point is not a primary vanishing point but is simply a convergence point with limited perspective characteristics. For instance, it would be difficult a apply a measuring system to it. In other words what is shown is a truncated pyramid pointing downwards.
The technique for introducing a vertical convergence point into a two point angular projection was in order to reduce the optical illusion of splaying out, an illusion that occurs when projecting large vertical forms. Originally, in about the late 1960’s a scale line was used to construct a vertically converging grid of lines that was then overlayed over a standard two point angular projection. The grid was subject to only a very slight convergence. The vertical lines in the projection were then alligned by eye to the overlaying grid. At some stage a convergence point was introduced, however this, because of its proximity to the projection, subjects the projection to a greater degree of convergence. At best is a distortion that simulates three point projection but it is not true three point oblique projection.
Regards.

By: Christian Heine

Christian Heine — Wed, 17 Aug 2016 23:31:00 +0000

Reverse perspective can be seen on a laser-cut portrait like at Madame Tussauds, here only one vantage point on backside of cube, so nothing new really apart that Mr. Hughes needs to recreate the reverse depth and adds 2-point perspective. No need for being overprotective.

Comments on: Linear Perspective That Is Truly Moving

By: Louise

By: Anthony Nicholls

By: Christian Heine