mirror of https://github.com/qt/qt3d.git
67 lines
1.5 KiB
QML
67 lines
1.5 KiB
QML
// Copyright (C) 2018 Klaralvdalens Datakonsult AB (KDAB).
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
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import Qt3D.Core 2.0
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import Qt3D.Render 2.0
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import Qt3D.Input 2.0
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import Qt3D.Extras 2.0
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Entity {
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id: root
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property vector3d origin
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property vector3d direction
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property real length: 1
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components: [ mesh, material ]
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function buildVertexBufferData(o, d, l) {
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// Vertices
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var v0 = o
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var v1 = o.plus(d.times(l))
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var vertices = [ v1, v0 ]
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var vertexArray = new Float32Array(vertices.length * 3);
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var i = 0;
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vertices.forEach(function(vec3) {
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vertexArray[i++] = vec3.x;
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vertexArray[i++] = vec3.y;
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vertexArray[i++] = vec3.z;
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});
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return vertexArray;
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}
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Buffer {
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id: vertexBuffer
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data: buildVertexBufferData(root.origin, root.direction, root.length)
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}
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GeometryRenderer {
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id: mesh
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instanceCount: 1
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indexOffset: 0
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firstInstance: 0
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primitiveType: GeometryRenderer.Lines
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geometry: Geometry {
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Attribute {
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attributeType: Attribute.VertexAttribute
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vertexBaseType: Attribute.Float
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vertexSize: 3
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byteOffset: 0
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count: 2
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name: defaultPositionAttributeName
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buffer: vertexBuffer
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}
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}
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}
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LineMaterial {
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id: material
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maincolor: "white"
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}
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}
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