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GL accelerated video plane


The jit.gl.videoplane object maps incoming video to a plane in 3D space. This may be used to exploit hardware accelerated rotation, scaling, interpolation, and blending. The jit.gl.videoplane object requires one argument: the name of a drawing context. A named drawing context is a named instance of a jit.window, jit.pwindow, or jit.matrix object that has an instance of the jit.gl.render object associated with it. This value may also be set via the OB3D drawto attribute.

Information for Jitter 3D Object (OB3D) messages and attributes to this object


sendtexture message [list]
Sends the internal jit.gl.texture object the corresponding message.


Name Type g/s Description
client_storage int Client storage flag (default = 1) When this flag is set, the jit.gl.videoplane object uses the incoming matrix's storage rather than allocating texture memory. This attribute is only valid on OS X.
colormode symbol Color mode (default = argb). Possible values are argb or uyvy.
dim int The dimensions of the grid (default = 20 20)
displaylist int Cache in displaylist flag (default = 0) This feature may be used to speed up rendering time by creating and storing a list of gl drawing commands on the graphics card. This will have no effect if matrixoutput turned on.
gridmode int Grid render mode (default = 0 (quadrilateral grid))
0 = quad_grid (quadrilateral grid)
1 = tri_grid (triangular grid)
interp int Interpolation flag (default = 1)
nudge float Texture nudge value (default = 0.01) This value is the amount the texture is nudged from its boundaries to accomodate for boundary errors when mapping the texture to the plane.
rect_tex int Sets the internal texture to use rectangular textures
tex_offset_x float Texture x-offset (default = 0.)
tex_offset_y float Texture y-offset (default = 0.)
tex_scale_x float Texture x-scale (default = 1.)
tex_scale_y float Texture y-scale (default = 1.)
texturename symbol Sets the name of the internal texture.

Information for box attributes common to all objects


See Also

Name Description
jit.gl.graph Open GL floating-point data visualization
jit.gl.gridshape Generate simple geometric shapes as a connected grid
jit.gl.handle Use mouse movement to control position/rotation
jit.gl.isosurf Generates a GL based surface extraction
jit.gl.mesh Generates GL geometry from existing data
jit.gl.model Read and draw Wavefront .obj models
jit.gl.nurbs Generate NURBS surface
jit.gl.plato Generate platonic solids
jit.gl.render Render Open GL
jit.gl.shader Manages a GL shader
jit.gl.sketch GL parallel to lcd
jit.gl.slab Performs a GL accelerated grid-based evaluation
jit.gl.text2d Write bitmap text
jit.gl.text3d Write vector text
jit.gl.texture Manages a GL texture
jit.gl.volume Creates a GL accelerated volume vizualization
Tutorial 42: Slab: Data Processing on the GPU Tutorial 42: Slab: Data Processing on the GPU