我正在尝试使用相同向量的数组进行渲染，但有时当我加载一个对象时，我会遇到一个问题，即相机向量会随着我加载到的对象而变化viewRenderable。可能是什么原因？
这两张图片是相同的渲染，具有相同的矢量。
目前，我正在混合MaterialFactory和viewrenderable. 行使用MaterialFactory，文本使用viewrenderables。
这是我的代码的一部分。中心向量和相机向量被实现为全局变量。
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
)
}
}
这是渲染对象的实用程序代码。
@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)
)
}
}
}
}
}
}