Explore the technical side of RenderMan with this in-depth shader writing video training, which includes courses for OSL, C++, and Se Expression.

The Cornu spiral is a plot in the complex plane of the points B(t)=S(t)+iC(t), (1) where S(t) and C(t) are the Fresnel integrals (von Seggern 2007, p. 210; Gray 1997, p. 65). The Cornu spiral is also known as the clothoid or Euler's spiral. It was probably first studied by Johann Bernoulli around 1696 (Bernoulli 1967, pp. 1084-1086). A Cornu spiral describes diffraction from the edge of a half-plane. The quantities C(t)/S(t) and S(t)/C(t) are plotted above. The slope of the curve's...

Discussion topic from the Foundry Community under Modo Forums - Workflow Specific - Lighting & Rendering

Corona Materials is a website dedicated to material simulation. We have tutorials, materials for c4d, Courses and Videos to master materials with Corona Renderer.

A helix, sometimes also called a coil, is a curve for which the tangent makes a constant angle with a fixed line. The shortest path between two points on a cylinder (one not directly above the other) is a fractional turn of a helix, as can be seen by cutting the cylinder along one of its sides, flattening it out, and noting that a straight line connecting the points becomes helical upon re-wrapping (Steinhaus 1999, p. 229). It is for this reason that squirrels chasing one another up and...

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Procedurally generated gradients to add to your materials, eliminating the need for textures and saving memory.

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UE4 - Tutorial - Niagara Skull Mesh Particles