Transforms

Transforms are snippets that can be attached to events (resize, mouse_scroll, etc.) and inserted into other shader code using hooks.

• transform-pvm.py

  This example shows a simple Projection/Model/View transform that is equivalent to the deprecated GL API (1.0).

• transform-pan-zoom.py

  The panzoom transform allow to translate and scale an object in the window space coordinate (2D).

• transform-trackball.py

  The trackball transform simulates a virtual trackball (3D) that can rotate around the origin using intuitive mouse gestures.

• transform-ortho.py

  This examples shows and orthographic projection where coordinates are manipulated in pixels.

• transform-rotate.py

  This example shows a simple rotating quad using the Rotate transform.

• transform-linear-scale.py

  Simple linear scale that maps point from a domain to a given range.

• transform-power-scale.py

  Power scales are similar to linear scales, except there’s an exponential transform that is applied to the input domain value before the output range value is computed.

• transform-log-scale.py

  Log scales are similar to linear scales, except there’s a logarithmic transform that is applied to the input domain value before the output range value is computed.

• transform-lin-log-scale.py

  This example show how to use different scales on x, y, or z.

• transform-polar.py

  Simple polar projection.

• transform-log-polar.py

  Simple composition of a polar projection and a log scale on the radius.