How could I got about calculating the surface area of a triangle as it is projected onto the screen. Given projection, view, model matrices and the 3 vertex positions.
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How could I got about calculating the surface area of a triangle as it is projected onto the screen. Given projection, view, model matrices and the 3 vertex positions.
A = sqrt(s*(s-a)*(s-b)*(s-c))withs = (a+b+c)/2anda,b,c, the lengths of the three sides of the triangle using some 2D vector math (this is Heron’s formula)