OglVolumetricModel

Volumetric model for OpenGL display

Target: VolumetricRendering

namespace: sofa::component::visualmodel

parents:

• VisualModel
• VisualState

Data

Name	Description	Default value
name	object name	unnamed
printLog	if true, emits extra messages at runtime.	0
tags	list of the subsets the objet belongs to
bbox	this object bounding box
componentState	The state of the component among (Dirty, Valid, Undefined, Loading, Invalid).	Undefined
listening	if true, handle the events, otherwise ignore the events	0
enable	Display the object or not	1
tetrahedra	Tetrahedra to draw
hexahedra	Hexahedra to draw
volumeScale	Scale for each volumetric primitive	1
depthTest	Set Depth Test	0
blending	Set Blending	0
defaultColor	Color for each volume (if the attribute a_vertexColor is not detected)	0 0 0 0
Vector
position	Vertices coordinates
restPosition	Vertices rest coordinates
normal	Normals of the model

Links

Name	Description	Destination type name
context	Graph Node containing this object (or BaseContext::getDefault() if no graph is used)	BaseContext
slaves	Sub-objects used internally by this object	BaseObject
master	nullptr for regular objects, or master object for which this object is one sub-objects	BaseObject

Examples

OglVolumetricModel_tetra_physics.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="VolumetricRendering" />

    <Node name="HexaRaptor" >
        <EulerImplicitSolver  rayleighStiffness="0.1" rayleighMass="0.1" />
        <CGLinearSolver iterations="100" tolerance="1.0e-7" threshold="1.0e-7"/>

        <MeshVTKLoader name="loader" filename="mesh/raptorTetra_8418.vtu" />
        <MechanicalObject src="@loader" template="Vec3d" />
        <include href="Objects/TetrahedronSetTopology.xml" src="@loader" />

        <TetrahedronFEMForceField name="FEM" youngModulus="500" poissonRatio="0.4" method="large"
            computeVonMisesStress="2"
         />

        <Node>
            <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5" 
                vertFilename="share/shaders/tetra.vert" geoFilename="share/shaders/tetra_triangles.geo" fragFilename="share/shaders/tetra.frag" />
            <OglFloatVariable id="volumeScale" value="0.9"/>
            <OglFloatVariable id="u_enableLight" value="1"/>
            <OglFloat4Attribute id="a_vertexColor" value="@../FEM.vonMisesStressColors"/>
            <OglVolumetricModel printLog="false" color="1 0 1 1" />

            <IdentityMapping />
        </Node>
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="VolumetricRendering")

   hexa_raptor = root.addChild('HexaRaptor')

   hexa_raptor.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
   hexa_raptor.addObject('CGLinearSolver', iterations="100", tolerance="1.0e-7", threshold="1.0e-7")
   hexa_raptor.addObject('MeshVTKLoader', name="loader", filename="mesh/raptorTetra_8418.vtu")
   hexa_raptor.addObject('MechanicalObject', src="@loader", template="Vec3d")
   hexa_raptor.addObject('include', href="Objects/TetrahedronSetTopology.xml", src="@loader")
   hexa_raptor.addObject('TetrahedronFEMForceField', name="FEM", youngModulus="500", poissonRatio="0.4", method="large", computeVonMisesStress="2")

   node = HexaRaptor.addChild('node')

   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", vertFilename="share/shaders/tetra.vert", geoFilename="share/shaders/tetra_triangles.geo", fragFilename="share/shaders/tetra.frag")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglFloat4Attribute', id="a_vertexColor", value="@../FEM.vonMisesStressColors")
   node.addObject('OglVolumetricModel', printLog="false", color="1 0 1 1")
   node.addObject('IdentityMapping', )

OglVolumetricModel_hexa_link.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="VolumetricRendering" />

    <Node name="Input">
        <SparseGridTopology name="grid" n="51 51 51" fileTopology="mesh/raptor_8kp.obj" />

        <MechanicalObject name="dofs" template="Vec3d" />
        <HexahedronSetTopologyContainer name="topology" hexahedra="@grid.hexahedra" />
    </Node>

    <Node>
        <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5"
                   fileVertexShaders="['share/shaders/tetra.vert']" fileGeometryShaders="['share/shaders/tetra_triangles.geo']" fileFragmentShaders="['share/shaders/tetra.frag']" />
        <OglFloatVariable id="volumeScale" value="0.9"/>
        <OglFloatVariable id="u_enableLight" value="1"/>
        <OglVolumetricModel position="@../Input/dofs.position" hexahedra="@../Input/topology.hexahedra" printLog="false" color="1 0 1 1" />
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="VolumetricRendering")

   input = root.addChild('Input')

   input.addObject('SparseGridTopology', name="grid", n="51 51 51", fileTopology="mesh/raptor_8kp.obj")
   input.addObject('MechanicalObject', name="dofs", template="Vec3d")
   input.addObject('HexahedronSetTopologyContainer', name="topology", hexahedra="@grid.hexahedra")

   node = root.addChild('node')

   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", fileVertexShaders="['share/shaders/tetra.vert']", fileGeometryShaders="['share/shaders/tetra_triangles.geo']", fileFragmentShaders="['share/shaders/tetra.frag']")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglVolumetricModel', position="@../Input/dofs.position", hexahedra="@../Input/topology.hexahedra", printLog="false", color="1 0 1 1")

OglVolumetricModel_tetra.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="VolumetricRendering" />

    <MeshVTKLoader name="loader" filename="mesh/raptorTetra_8418.vtu" />
    <MechanicalObject src="@loader" template="Vec3d" />
    <include href="Objects/TetrahedronSetTopology.xml" src="@loader" />

    <Node>
        <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5" 
            vertFilename="share/shaders/tetra.vert" geoFilename="share/shaders/tetra_triangles.geo" fragFilename="share/shaders/tetra.frag" />
        <OglFloatVariable id="volumeScale" value="0.9"/>
        <OglFloatVariable id="u_enableLight" value="1"/>
        <OglFloat4Attribute id="a_vertexColor" value="@../loader.position"/>
        <OglVolumetricModel printLog="false"  />
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="VolumetricRendering")
   root.addObject('MeshVTKLoader', name="loader", filename="mesh/raptorTetra_8418.vtu")
   root.addObject('MechanicalObject', src="@loader", template="Vec3d")
   root.addObject('include', href="Objects/TetrahedronSetTopology.xml", src="@loader")

   node = root.addChild('node')

   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", vertFilename="share/shaders/tetra.vert", geoFilename="share/shaders/tetra_triangles.geo", fragFilename="share/shaders/tetra.frag")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglFloat4Attribute', id="a_vertexColor", value="@../loader.position")
   node.addObject('OglVolumetricModel', printLog="false")

OglVolumetricModel_physics.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="VolumetricRendering" />

    <Node name="HexaRaptor" >
        <EulerImplicitSolver  rayleighStiffness="0.1" rayleighMass="0.1" />
        <CGLinearSolver iterations="100" tolerance="1.0e-7" threshold="1.0e-7"/>

        <SparseGridTopology name="grid" n="21 21 21" fileTopology="mesh/raptor_8kp.obj" />

        <MechanicalObject name="dofs" template="Vec3d" />
        <HexahedronSetTopologyContainer hexahedra="@grid.hexahedra" />
        <HexahedronSetGeometryAlgorithms />

        <HexahedronFEMForceField name="FEM" youngModulus="500" poissonRatio="0.4" method="large" />

        <Node>
            <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5" 
                vertFilename="share/shaders/tetra.vert" geoFilename="share/shaders/tetra_triangles.geo" fragFilename="share/shaders/tetra.frag" />
            <OglFloatVariable id="volumeScale" value="0.9"/>
            <OglFloatVariable id="u_enableLight" value="1"/>
            <OglFloat4Attribute id="a_vertexColor" value="@../grid.position"/>
            <OglVolumetricModel printLog="false" color="1 0 1 1" />

            <IdentityMapping />
        </Node>
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="VolumetricRendering")

   hexa_raptor = root.addChild('HexaRaptor')

   hexa_raptor.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
   hexa_raptor.addObject('CGLinearSolver', iterations="100", tolerance="1.0e-7", threshold="1.0e-7")
   hexa_raptor.addObject('SparseGridTopology', name="grid", n="21 21 21", fileTopology="mesh/raptor_8kp.obj")
   hexa_raptor.addObject('MechanicalObject', name="dofs", template="Vec3d")
   hexa_raptor.addObject('HexahedronSetTopologyContainer', hexahedra="@grid.hexahedra")
   hexa_raptor.addObject('HexahedronSetGeometryAlgorithms', )
   hexa_raptor.addObject('HexahedronFEMForceField', name="FEM", youngModulus="500", poissonRatio="0.4", method="large")

   node = HexaRaptor.addChild('node')

   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", vertFilename="share/shaders/tetra.vert", geoFilename="share/shaders/tetra_triangles.geo", fragFilename="share/shaders/tetra.frag")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglFloat4Attribute', id="a_vertexColor", value="@../grid.position")
   node.addObject('OglVolumetricModel', printLog="false", color="1 0 1 1")
   node.addObject('IdentityMapping', )

OglVolumetricModel_tetra_clipped_physics.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="VolumetricRendering" />

    <Node name="HexaRaptor" >
        <EulerImplicitSolver  rayleighStiffness="0.1" rayleighMass="0.1" />
        <CGLinearSolver iterations="100" tolerance="1.0e-7" threshold="1.0e-7"/>

        <MeshVTKLoader name="loader" filename="mesh/raptorTetra_8418.vtu" />
        <MechanicalObject src="@loader" template="Vec3d" />
        <include href="Objects/TetrahedronSetTopology.xml" src="@loader" />

        <TetrahedronFEMForceField name="FEM" youngModulus="500" poissonRatio="0.4" method="large"
            computeVonMisesStress="2"
         />

        <Node>
            <ClipPlane id="0" position="0 0 0" normal="0 0 1" />
            <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5" 
                vertFilename="share/shaders/tetra.vert" geoFilename="share/shaders/tetra_triangles.geo" fragFilename="share/shaders/tetra.frag" />
            <OglFloatVariable id="volumeScale" value="0.9"/>
            <OglFloatVariable id="u_enableLight" value="1"/>
            <OglFloat4Attribute id="a_vertexColor" value="@../FEM.vonMisesStressColors"/>
            <OglVolumetricModel printLog="false" color="1 0 1 1" />

            <IdentityMapping />
        </Node>
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="VolumetricRendering")

   hexa_raptor = root.addChild('HexaRaptor')

   hexa_raptor.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
   hexa_raptor.addObject('CGLinearSolver', iterations="100", tolerance="1.0e-7", threshold="1.0e-7")
   hexa_raptor.addObject('MeshVTKLoader', name="loader", filename="mesh/raptorTetra_8418.vtu")
   hexa_raptor.addObject('MechanicalObject', src="@loader", template="Vec3d")
   hexa_raptor.addObject('include', href="Objects/TetrahedronSetTopology.xml", src="@loader")
   hexa_raptor.addObject('TetrahedronFEMForceField', name="FEM", youngModulus="500", poissonRatio="0.4", method="large", computeVonMisesStress="2")

   node = HexaRaptor.addChild('node')

   node.addObject('ClipPlane', id="0", position="0 0 0", normal="0 0 1")
   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", vertFilename="share/shaders/tetra.vert", geoFilename="share/shaders/tetra_triangles.geo", fragFilename="share/shaders/tetra.frag")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglFloat4Attribute', id="a_vertexColor", value="@../FEM.vonMisesStressColors")
   node.addObject('OglVolumetricModel', printLog="false", color="1 0 1 1")
   node.addObject('IdentityMapping', )

OglVolumetricModel_hexa.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Dynamic"/> <!-- Needed to use components [HexahedronSetTopologyContainer] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Grid"/> <!-- Needed to use components [SparseGridTopology] -->
    <RequiredPlugin name="Sofa.GL.Component.Shader"/> <!-- Needed to use components [OglFloatVariable,OglShader] -->
    <RequiredPlugin name="VolumetricRendering" />

    <DefaultAnimationLoop/>
    <SparseGridTopology name="grid" n="51 51 51" fileTopology="mesh/raptor_8kp.obj" />

    <MechanicalObject template="Vec3d" />
    <HexahedronSetTopologyContainer hexahedra="@grid.hexahedra" />

    <Node>
        <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5"
                   fileVertexShaders="['share/shaders/tetra.vert']" fileGeometryShaders="['share/shaders/tetra_triangles.geo']" fileFragmentShaders="['share/shaders/tetra.frag']" />
        <OglFloatVariable id="volumeScale" value="0.9"/>
        <OglFloatVariable id="u_enableLight" value="1"/>
        <OglVolumetricModel printLog="false" color="1 0 1 1" />
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="Sofa.Component.StateContainer")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Dynamic")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Grid")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Shader")
   root.addObject('RequiredPlugin', name="VolumetricRendering")
   root.addObject('DefaultAnimationLoop', )
   root.addObject('SparseGridTopology', name="grid", n="51 51 51", fileTopology="mesh/raptor_8kp.obj")
   root.addObject('MechanicalObject', template="Vec3d")
   root.addObject('HexahedronSetTopologyContainer', hexahedra="@grid.hexahedra")

   node = root.addChild('node')

   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", fileVertexShaders="['share/shaders/tetra.vert']", fileGeometryShaders="['share/shaders/tetra_triangles.geo']", fileFragmentShaders="['share/shaders/tetra.frag']")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglVolumetricModel', printLog="false", color="1 0 1 1")

OglVolumetricModel_hexa_physics.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="VolumetricRendering" />

    <Node name="HexaRaptor" >
        <EulerImplicitSolver  rayleighStiffness="0.1" rayleighMass="0.1" />
        <CGLinearSolver iterations="100" tolerance="1.0e-7" threshold="1.0e-7"/>

        <SparseGridTopology name="grid" n="21 21 21" fileTopology="mesh/raptor_8kp.obj" />

        <MechanicalObject name="dofs" template="Vec3d" />
        <HexahedronSetTopologyContainer hexahedra="@grid.hexahedra" />
        <HexahedronSetGeometryAlgorithms />

        <HexahedronFEMForceField name="FEM" youngModulus="500" poissonRatio="0.4" method="large" />

        <Node>
            <OglShader geometryVerticesOut="12" geometryInputType="10" geometryOutputType="5" 
                vertFilename="share/shaders/tetra.vert" geoFilename="share/shaders/tetra_triangles.geo" fragFilename="share/shaders/tetra.frag" />
            <OglFloatVariable id="volumeScale" value="0.9"/>
            <OglFloatVariable id="u_enableLight" value="1"/>
            <OglFloat4Attribute id="a_vertexColor" value="@../grid.position"/>
            <OglVolumetricModel printLog="false" color="1 0 1 1" />

            <IdentityMapping />
        </Node>
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   root.addObject('RequiredPlugin', name="VolumetricRendering")

   hexa_raptor = root.addChild('HexaRaptor')

   hexa_raptor.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
   hexa_raptor.addObject('CGLinearSolver', iterations="100", tolerance="1.0e-7", threshold="1.0e-7")
   hexa_raptor.addObject('SparseGridTopology', name="grid", n="21 21 21", fileTopology="mesh/raptor_8kp.obj")
   hexa_raptor.addObject('MechanicalObject', name="dofs", template="Vec3d")
   hexa_raptor.addObject('HexahedronSetTopologyContainer', hexahedra="@grid.hexahedra")
   hexa_raptor.addObject('HexahedronSetGeometryAlgorithms', )
   hexa_raptor.addObject('HexahedronFEMForceField', name="FEM", youngModulus="500", poissonRatio="0.4", method="large")

   node = HexaRaptor.addChild('node')

   node.addObject('OglShader', geometryVerticesOut="12", geometryInputType="10", geometryOutputType="5", vertFilename="share/shaders/tetra.vert", geoFilename="share/shaders/tetra_triangles.geo", fragFilename="share/shaders/tetra.frag")
   node.addObject('OglFloatVariable', id="volumeScale", value="0.9")
   node.addObject('OglFloatVariable', id="u_enableLight", value="1")
   node.addObject('OglFloat4Attribute', id="a_vertexColor", value="@../grid.position")
   node.addObject('OglVolumetricModel', printLog="false", color="1 0 1 1")
   node.addObject('IdentityMapping', )