psychopy.visual - many visual stimuli¶

Window to display all stimuli below.

Windows and and display devices:

• Window is the main class to display objects

• Warper for non-flat projection screens

• ProjectorFramePacker for handling displays with ‘structured light mode’ to achieve high framerates

• Rift for Oculus Rift support (Windows 64bit only)

• VisualSystemHD for NordicNeuralLab’s VisualSystemHD in-scanner display.

Commonly used:

• ImageStim to show images

• TextStim to show text

• TextBox2 rewrite of TextStim (faster, editable with more layout options and formatting)

Shapes (all special classes of ShapeStim):

• ShapeStim to draw shapes with arbitrary numbers of vertices

• Rect to show rectangles

• Circle to show circles

• Polygon to show polygons

• Line to show a line

• Pie to show wedges and semi-circles

Images and patterns:

• SimpleImageStim to show images without bells and whistles

• GratingStim to show gratings

• RadialStim to show annulus, a rotating wedge, a checkerboard etc

• NoiseStim to show filtered noise patterns of various forms

• EnvelopeGrating to generate second-order stimuli (gratings that can have a carrier and envelope)

Multiple stimuli:

• ElementArrayStim to show many stimuli of the same type

• DotStim to show and control movement of dots

3D shapes, materials, and lighting:

• LightSource to define a light source in a scene

• SceneSkybox to render a background skybox for VR and 3D scenes

• BlinnPhongMaterial to specify a material using the Blinn-Phong lighting model

• RigidBodyPose to define poses of objects in 3D space

• BoundingBox to define bounding boxes around 3D objects

• SphereStim to show a 3D sphere

• BoxStim to show 3D boxes and cubes

• PlaneStim to show 3D plane

• ObjMeshStim to show Wavefront OBJ meshes loaded from files

Other stimuli:

• MovieStim to show movies

• VlcMovieStim to show movies using VLC

• Slider a new improved class to collect ratings

• RatingScale to collect ratings

• CustomMouse to change the cursor in windows with GUI. OBS: will be deprecated soon

Meta stimuli (stimuli that operate on other stimuli):

• BufferImageStim to make a faster-to-show “screenshot” of other stimuli

• Aperture to restrict visibility area of other stimuli

Helper functions:

• filters for creating grating textures and Gaussian masks etc.

• visualhelperfunctions for tests about whether one stimulus contains another

• unittools to convert deg<->radians

• monitorunittools to convert cm<->pix<->deg etc.

• colorspacetools to convert between supported color spaces

• viewtools to work with view projections

• mathtools to work with vectors, quaternions, and matrices

• gltools to work with OpenGL directly (under development)