private void createMesh(Color color) {
float[] v = {
(float) _lower._x,
(float) _lower._y,
(float) _lower._z,
(float) _lower._x,
(float) _upper._y,
(float) _lower._z,
(float) _lower._x,
(float) _upper._y,
(float) _upper._z,
(float) _lower._x,
(float) _lower._y,
(float) _upper._z,
(float) _upper._x,
(float) _lower._y,
(float) _lower._z,
(float) _upper._x,
(float) _upper._y,
(float) _lower._z,
(float) _upper._x,
(float) _upper._y,
(float) _upper._z,
(float) _upper._x,
(float) _lower._y,
(float) _upper._z
};
short[] i = {
0, 1, 1, 2, 2, 3, 3, 0, 1, 5, 5, 6, 6, 2, 2, 1, 5, 4, 4, 7, 7, 6, 6, 5, 4, 0, 0, 3, 3, 7, 7,
4, 3, 2, 2, 6, 6, 7, 7, 3, 0, 1, 1, 5, 5, 4, 4, 0
};
FloatBufferBuilderFromCartesian3D vertices =
new FloatBufferBuilderFromCartesian3D(CenterStrategy.firstVertex(), Vector3D.zero());
ShortBufferBuilder indices = new ShortBufferBuilder();
final int numVertices = 8;
for (int n = 0; n < numVertices; n++) {
vertices.add(v[n * 3], v[n * 3 + 1], v[n * 3 + 2]);
}
final int numIndices = 48;
for (int n = 0; n < numIndices; n++) {
indices.add(i[n]);
}
_mesh =
new IndexedMesh(
GLPrimitive.lines(),
true,
vertices.getCenter(),
vertices.create(),
indices.create(),
1,
1,
color);
}
private Mesh createMesh(G3MRenderContext rc) {
final int numStrides = 5;
FloatBufferBuilderFromCartesian3D vertices =
FloatBufferBuilderFromCartesian3D.builderWithoutCenter();
FloatBufferBuilderFromColor colors = new FloatBufferBuilderFromColor();
ShortBufferBuilder indices = new ShortBufferBuilder();
int indicesCounter = 0;
final float innerRadius = 0F;
// const float r2=50;
final Camera camera = rc.getCurrentCamera();
final int viewPortWidth = camera.getViewPortWidth();
final int viewPortHeight = camera.getViewPortHeight();
final int minSize = (viewPortWidth < viewPortHeight) ? viewPortWidth : viewPortHeight;
final float outerRadius = minSize / 15.0f;
final IMathUtils mu = IMathUtils.instance();
for (int step = 0; step <= numStrides; step++) {
final double angle = (double) step * 2 * DefineConstants.PI / numStrides;
final double c = mu.cos(angle);
final double s = mu.sin(angle);
vertices.add((innerRadius * c), (innerRadius * s), 0);
vertices.add((outerRadius * c), (outerRadius * s), 0);
indices.add((short) (indicesCounter++));
indices.add((short) (indicesCounter++));
// float col = (float) (1.0 * step / numStrides);
// if (col>1) {
// colors.add(1, 1, 1, 0);
// colors.add(1, 1, 1, 0);
// }
// else {
// colors.add(1, 1, 1, 1 - col);
// colors.add(1, 1, 1, 1 - col);
// }
// colors.add(Color::red().wheelStep(numStrides, step));
// colors.add(Color::red().wheelStep(numStrides, step));
colors.add(1, 1, 1, 1);
colors.add(1, 1, 1, 0);
}
// the two last indices
indices.add((short) 0);
indices.add((short) 1);
Mesh result =
new IndexedMesh(
GLPrimitive.triangleStrip(),
true,
vertices.getCenter(),
vertices.create(),
indices.create(),
1,
1,
null,
colors.create());
if (vertices != null) vertices.dispose();
return result;
}
