.. _isosurfaceRenderer:
Isosurfaces
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Description
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The Isosurface Renderer displays surfaces that follow a single value of their selected variable. This is similar to a 2D contour, but in 3D space. Each instance of the Isosurface renderer can display up to four surfaces. Initially, only one will be displayed. Additional isosurfaces can be created by double-clicking on the Transfer Function historgram, in the Appearance tab.
Basic Controls
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This renderer contains all of Vapor's standard renderer controls: the :ref:`Variables `, :ref:`Appearance `, :ref:`Geometry `, and :ref:`Annotation ` tabs.
Specialized Controls
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The Isosurface Renderer's Variables tab allows users to color the volume by a secondary variable. This mans that the opacity of the volume can be controlled by a primary variable, and the color can bee attributed to a secondary variable.
Under the Appearance tab, the Isosurface Renderer also allows users to modify its Raytracing and Lighting parameters.
.. include:: commonControls/raytracingParameters.rst
.. include:: commonControls/lightingParameters.rst