ColorRGBA

ColorRGBA node defines a set of RGBA color values that apply either to a sibling Coordinate/CoordinateDouble node, or else to a parent ElevationGrid node. ColorRGBA is only used by ElevationGrid, IndexedFaceSet, IndexedLineSet, LineSet, PointSet, Triangle* and IndexedTriangle* nodes.

Overview

ColorRGBA
Hierarchy
Fields
Description
Example
Browser Compatibility
External Links

The ColorRGBA node belongs to the Rendering component and its container field is color. It is available since X3D version 3.0 or later.

Hierarchy

+ X3DNode

+ X3DGeometricPropertyNode

+ X3DColorNode

+ ColorRGBA

Fields

SFNode [in, out] metadata NULL [X3DMetadataObject]

Metadata are not part of the X3D world and not interpreted by the X3D browser, but they can be accessed via the ECMAScript interface.

MFColorRGBA [in, out] color [ ] [0,1]

The color field defines an array of 4-tuple RGBA colors.

Warning

ColorRGBA requires Rendering component level 3 (alpha fully supported), Rendering component level 1 (alpha optional), otherwise Full profile.

Description

Hints

Colors are often controlled by Material instead.
Alpha channel may be ignored under Interchange profile.

Warning

ColorRGBA requires Rendering component level 3 (alpha fully supported), Rendering component level 1 (alpha optional), otherwise Full profile.

Example

Downlod ZIP file

XML Encoding

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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.3//EN" "http://www.web3d.org/specifications/x3d-3.3.dtd">

<head>

</head>

<Scene>

</ExternProtoDeclare>

</ProtoInterface>

<QuadSet DEF='_1'

colorPerVertex='false'>

</QuadSet>

</field>

<IS>

</IS>

<![CDATA[ecmascript:

var

points = [ ],

lastTime = 0;

function initialize ()

{

build ();

}

function set_value (value, time)

{

if (lastTime == 0)

lastTime = time;

var dt = time - lastTime;

if (dt < updateInterval)

return;

if (points .length > width)

points .shift ();

points .push (value);

lastTime = time;

animate ();

}

function set_width ()

{

build ();

}

function set_height ()

{

build ();

}

function set_size ()

{

build ();

}

function set_spacing ()

{

build ();

}

function build ()

{

var

hsva = new SFColorRGBA (1, 1, 1, 1),

color = geometry .color .color,

coord = geometry .coord .point;

lastTime = 0;

points .length = 0;

color .length = 0;

coord .length = 0;

for (var w = 0; w < width; ++ w)

{

for (var h = 0; h < height; ++ h)

{

var

x1 = size .x * w + spacing .x * w,

x2 = x1 + size .x,

y1 = size .y * h + spacing .y * h,

y2 = y1 + size .y

hue = w / width * 2 * Math .PI;

hsva .setHSVA (hue, 1, 1, 1);

color .push (hsva);

coord .push (new SFVec3f (x1, y1, 0));

coord .push (new SFVec3f (x2, y1, 0));

coord .push (new SFVec3f (x2, y2, 0));

coord .push (new SFVec3f (x1, y2, 0));

}

function animate ()

{

var color = geometry .color .color;

for (var w = 0; w < points .length; ++ w)

{

var value = (points [w] + 1) * 0.5 * height;

for (var h = 0; h < height; ++ h)

{

var

i = w * height + h,

c = color [i];

if (value > h)

{

c .a = 1;

}

else

{

if (c .a == 1)

c .a = 0.5;

else

c .a *= 0.8;

}

}]]>

</Script>

</ProtoBody>

</ProtoDeclare>

<NavigationInfo

type='"NONE"'

headlight='false'/>

<Viewpoint

position='19.2 8.395 29.0642'

centerOfRotation='19.2 8.975 0'/>

<DirectionalLight

direction='0 -1 0'/>

</ProtoInstance>

<Shape>

</ProtoInstance>

</Shape>

</Transform>

<Transform DEF='DisplayReflection'

rotation='0 0.707106781188933 -0.707106781184162 3.1415978482863'

scale='-1 -1 -1'>

<Shape>

<Material

transparency='0.77'/>

</Appearance>

</Shape>

</Transform>

</Scene>

</X3D>

Classic Encoding

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#X3D V3.3 utf8 Titania V4.3.1

PROFILE Full

META "comment" "World of Titania"

META "created" "Tue, 10 Jul 2018 16:12:19 GMT"

META "creator" "Holger Seelig"

META "generator" "Titania V4.3.1, http://titania.create3000.de"

META "identifier" "file:///home/holger/Projekte/Server/create3000.de/media/htdocs/components/Rendering/ColorRGBA/ColorRGBA.O.x3d"

META "modified" "Wed, 11 Jul 2018 11:40:20 GMT"

EXTERNPROTO Noise [

inputOutput SFBool enabled

inputOutput SFFloat amplitude

inputOutput SFFloat frequency

inputOutput SFFloat phase

outputOnly SFFloat value_changed

]

"assets/Noise.x3d#Noise"

PROTO GraphicDisplay [

inputOnly SFFloat set_value

inputOutput SFInt32 width 10

inputOutput SFInt32 height 10

inputOutput SFVec2f size 1 1

inputOutput SFVec2f spacing 0.1 0.1

]

{

DEF _1 QuadSet {

colorPerVertex FALSE

color ColorRGBA { }

coord Coordinate { }

}

DEF GraphicDisplayScript Script {

inputOnly SFFloat set_value IS set_value

inputOutput SFTime updateInterval 0.05

inputOutput SFInt32 width IS width

inputOutput SFInt32 height IS height

inputOutput SFVec2f size IS size

inputOutput SFVec2f spacing IS spacing

inputOutput SFNode geometry USE _1

url "ecmascript:

var

points = [ ],

lastTime = 0;

function initialize ()

{

build ();

}

function set_value (value, time)

{

if (lastTime == 0)

lastTime = time;

var dt = time - lastTime;

if (dt < updateInterval)

return;

if (points .length > width)

points .shift ();

points .push (value);

lastTime = time;

animate ();

}

function set_width ()

{

build ();

}

function set_height ()

{

build ();

}

function set_size ()

{

build ();

}

function set_spacing ()

{

build ();

}

function build ()

{

var

hsva = new SFColorRGBA (1, 1, 1, 1),

color = geometry .color .color,

coord = geometry .coord .point;

lastTime = 0;

points .length = 0;

color .length = 0;

coord .length = 0;

for (var w = 0; w < width; ++ w)

{

for (var h = 0; h < height; ++ h)

{

var

x1 = size .x * w + spacing .x * w,

x2 = x1 + size .x,

y1 = size .y * h + spacing .y * h,

y2 = y1 + size .y

hue = w / width * 2 * Math .PI;

hsva .setHSVA (hue, 1, 1, 1);

color .push (hsva);

coord .push (new SFVec3f (x1, y1, 0));

coord .push (new SFVec3f (x2, y1, 0));

coord .push (new SFVec3f (x2, y2, 0));

coord .push (new SFVec3f (x1, y2, 0));

}

function animate ()

{

var color = geometry .color .color;

for (var w = 0; w < points .length; ++ w)

{

var value = (points [w] + 1) * 0.5 * height;

for (var h = 0; h < height; ++ h)

{

var

i = w * height + h,

c = color [i];

if (value > h)

{

c .a = 1;

}

else

{

if (c .a == 1)

c .a = 0.5;

else

c .a *= 0.8;

}

WorldInfo {

}

NavigationInfo {

type "NONE"

headlight FALSE

}

Viewpoint {

position 19.2 8.395 29.0642

centerOfRotation 19.2 8.975 0

}

DirectionalLight {

direction 0 -1 0

}

DEF _2 Noise {

enabled TRUE

frequency 2.4

}

DEF Display Transform {

children Shape {

geometry DEF _3 GraphicDisplay {

width 35

height 40

size 1 0.4

}

DEF DisplayReflection Transform {

rotation 0 0.707106781188933 -0.707106781184162 3.1415978482863

scale -1 -1 -1

children Shape {

appearance Appearance {

material Material {

transparency 0.77

}

geometry USE _3

}

ROUTE _2.value_changed TO _3.set_value

JSON Encoding

Browser Compatibility

Titania	X_ITE
yes	yes

Titania X3D Editor

Bring Colours to Your Life.

Titania v4.3.3

Bring Colours to Your Life.

X3D Reference

ColorRGBA

ColorRGBA

Hierarchy

Fields

SFNode [in, out] metadata NULL [X3DMetadataObject]

MFColorRGBA [in, out] color [ ] [0,1]

Warning

Description

Hints

Warning

Example

XML Encoding

Classic Encoding

JSON Encoding

Browser Compatibility

External Links