MegaPOV is a custom unofficial version of POV-Ray with a lot of additional features.

Media Fur

HDR (High Dynamic Range) image read and write support

New user_defined camera projection type

New camera_view pigment type

Reintroduced motion_blur from MegaPOV 0.7

New post processing feature

Connection-connection collisions and faster collisions for mechsim patch

Angle of incidence and projection pattern from MLPov

Several new spline types

no_radiosity flag for objects

Much more (complete list in the documentation)

Clothray cloth simulation system

Sim-POV mechanics simulation system

Film exposure simulation

Text object alignment

Frame_Step feature

Internal function f_triangle

sor_spline type in splines

Spline accessed like array

UV mapping in torus object

UV mapping in parametric object

Much more (complete list in the documentation)

Listed pattern (before solid pattern)

Displace warp

Glow effect

Time and date functions

Timer functions

Set directive

Noise pigment

Requirements:
OS X 10.3.9 or later
POV-Ray 3.6 or later installed

Universal Binary