I'm trying to render with an array of the same vector, but sometimes when I load an object I have a problem where the camera vector changes with the object I load into viewRenderable. What could be the cause?
These two pictures are the same rendering, with the same vector.
Currently, I'm mixing MaterialFactory and viewrenderable. Lines use MaterialFactory, texts use viewrenderables.
This is part of my code. The center vector and camera vector are implemented as global variables.
class RenderingViewHolder(context: Context, type: Int, roomBean: RoomBean) {
init {
findView()
doorHeight = 15f
windowHeight = 10f
initPointList()
initCallback()
maxLength = LocationUtil.longLength(pointList, roomBean.height)
initVectorList(segmentList)
initPartVectorList(roomBean.wallObjectList)
initCenterVector(vectorList1)
setCameraPosition(cameraPosition)
initSceneView()
startRendering()
}
private fun startRendering() {
DlogUtil.d(TAG, "음??????")
draw3Droom()
draw3Dpart()
setTransformableNode()
}
private fun initCenterVector(vectorList: List<List<Vector3>>) {
var cameraX = 0f
var cameraY = 0f
var cameraZ = 0f
var maxPosition = 0f
for (i in vectorList.indices) {
cameraX += vectorList[i][0].x
cameraY += vectorList[i][0].y
cameraZ += vectorList[i][0].z
}
cameraX /= vectorList.size * 2
cameraY /= vectorList.size * 2
cameraZ /= vectorList.size * 2
centerPosition = Vector3(cameraX, cameraY, cameraZ)
cameraPosition =
if (cameraZ <= 0) {
Vector3(
cameraX, cameraY,
1.5f * maxPosition
)
} else {
Vector3(
cameraX, cameraY,
cameraZ + 1.5f * maxPosition
)
}
}
This is the utility's code to render the object.
@RequiresApi(Build.VERSION_CODES.N)
fun drawCylinderLine(
context: Context,
lineColor: Color,
radius: Float,
length: Float,
parentNode: TransformableNode,
from: Vector3,
to: Vector3
) {
// 1. make a material by the color
MaterialFactory.makeOpaqueWithColor(context, lineColor)
.thenAccept { material: Material? ->
// 2. make a model by the material
val model = ShapeFactory.makeCylinder(
radius, length,
Vector3(0f, 0f, 0f), material
)
val light = Light.builder(Light.Type.FOCUSED_SPOTLIGHT)
.setShadowCastingEnabled(false)
.setIntensity(0f)
.build()
// 3. make node
val node = Node()
node.renderable = model
node.setParent(parentNode)
node.light = light
node.worldPosition = Vector3.add(to, from).scaled(.5f);
//4. set rotation
val difference = Vector3.subtract(to, from)
val directionFromTopToBottom = difference.normalized()
val rotationFromAToB =
Quaternion.lookRotation(
directionFromTopToBottom,
Vector3.up()
)
node.worldRotation = Quaternion.multiply(
rotationFromAToB,
Quaternion.axisAngle(Vector3(1.0f, 0.0f, 0.0f), 90f)
)
}
}
@RequiresApi(Build.VERSION_CODES.N)
fun drawTextView(
context: Context,
height: Float,
text: String,
parentNode: TransformableNode,
from: Vector3,
to: Vector3,
direction: Constants.Direction
) {
ViewRenderable.builder()
.setView(context, R.layout.view_sceneview_length)
.build()
.thenAccept {
val indicatorModel = Node()
indicatorModel.setParent(parentNode)
indicatorModel.renderable = it
indicatorModel.worldPosition = Vector3(
(from.x + to.x) / 2,
((from.y + to.y) / 2 + height),
(from.z + to.z) / 2
)
var textView: TextView = it.view.findViewById(R.id.textViewX)
var linearLayout: LinearLayout =
it.view.findViewById(R.id.linearLayout)
var layoutParam: LinearLayout.LayoutParams =
LinearLayout.LayoutParams(250, 70)
linearLayout.layoutParams = layoutParam
textView.text = text
//4. set rotation
val difference = Vector3.subtract(to, from)
val directionFromTopToBottom = difference.normalized()
when (direction) {
Constants.Direction.Horizontal -> {
val rotationFromAToB =
Quaternion.lookRotation(
directionFromTopToBottom,
Vector3.up()
)
indicatorModel.worldRotation = Quaternion.multiply(
rotationFromAToB,
Quaternion.axisAngle(Vector3(0.0f, 1.0f, 0.0f), 90f)
)
}
Constants.Direction.Vertical -> {
val rotationFromAToB =
Quaternion.lookRotation(
Vector3(0f, 0f, 0f),
Vector3.up()
)
indicatorModel.worldRotation = Quaternion.multiply(
rotationFromAToB,
Quaternion.axisAngle(Vector3(0.0f, 0.0f, 1.0f), 270f)
)
}
Constants.Direction.FLOOR -> {
when {
to.z > from.z -> {
var rotationFromAToB = Quaternion.lookRotation(
directionFromTopToBottom,
Vector3.left()
)
indicatorModel.worldRotation = Quaternion.multiply(
rotationFromAToB,
Quaternion.axisAngle(Vector3(0f, 1f, 0f), 90f)
)
}
to.z < from.z -> {
var rotationFromAToB = Quaternion.lookRotation(
directionFromTopToBottom,
Vector3.right()
)
indicatorModel.worldRotation = Quaternion.multiply(
rotationFromAToB,
Quaternion.axisAngle(Vector3(0f, 1f, 0f), 90f)
)
}
else -> {
var rotationFromAToB = Quaternion.lookRotation(
Vector3(0f, 0f, 0f),
Vector3.zero()
)
indicatorModel.worldRotation = Quaternion.multiply(
rotationFromAToB,
Quaternion.axisAngle(Vector3(1f, 0f, 0f), 90f)
)
}
}
}
}
}
}
This is simple reason.
This is a problem that occurs when the creation time of the parentsNode position is slower than the completion time of the ShareFactory rendering. So far I've put this behind the rendering code, and it caused the error.
Because viewRenderable has a slower rendering generation time than ShapeFactory, rendering was created according to the slower worldPosition.
So, I made the following changes.
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