Create a volume visualization Creates a transparent volume from a volumetric density field. This process is GL accelerated by using graphics hardware. Cycling '74 Jitter Jitter OpenGL messages to this 3d object TEXT_HERE TEXT_HERE matrix output if enabled TEXT_HERE dumpout TEXT_HERE Render bounding box Flag which enables or disables the rendering of the bounding box surrounding the volume (default = 0).
Density threshold The density threshold for constructing the surface. (default = 0.5) Distance offset The distance offset from the camera. (default = -5) Intensity scale factor The intensity scale factor for multiplying against volume density values. (default = 0.5) Number of slices Sets he number of slices used as proxies for rendering the volume data. Internally, jit.gl.volume creates a 3d jit.gl.texture object and applies it to multiple view-aligned slices of geometry. The resulting slices are then blended together using the standard ob3d blend modes. The density and intensity attributes subsequently control which features are visibile. By enabling the cubes attribute, slices will be rendered in both horizontal and vertical direction, which may result in a visualization which that is comparatively better or worse depending on the volume dataset being used.
The jit.gl.volume 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. Additionally it can reference the name of a jit.gl.node sub-context. This value may also be set via the OB3D drawto attribute. If no argument is present, the object is implicitly added to the first valid drawing context or sub-context found in the current patch or by searching up the patcher hierarchy.