mesh | Gentics Mesh - The open source headless CMS for developers | Content Management System library

After some digging, I found my mistake. itemSize of BufferAttribute for the faces has to be 1.

So I've changed this line

Ideally, your cleanup should look like this:

They are the 2D coordinates of the point where you clicked in the drawing area of MeshLab! Origin is in the bottom-left corner.

To achieve the "expected" output given the "actual" output, you could use the following filter:

One way to determine what section of your terrain should be culled is to use a quadtree (for a heightmap) or an octree (for a voxel map). Basically, you divide your terrain into little chunks that then get divided further accordingly. You can then test if these chunks are in your viewing frustum and cull them if necessary. This technique was already discussed in great detail:

• Efficient (and well explained) implementation of a Quadtree for 2D collision detection
• https://www.rastertek.com/tertut05.html
• https://gamedev.stackexchange.com/questions/15697/quadtree-terrain-splitting-i-dont-get-it

I saw some websites saying to use GL_DYNAMIC_DRAW instead of GL_STATIC_DRAW, but I did not understand it.

These are usage hints to OpenGL on how the data will be accessed so the implementation has the ability to apply certain optimizations on how to store/use it.

usage is a hint to the GL implementation as to how a buffer object's data store will be accessed. This enables the GL implementation to make more intelligent decisions that may significantly impact buffer object performance. (https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBufferData.xhtml)

Please note that these are only indications, no restrictions:

It does not, however, constrain the actual usage of the data store.

Because you will likely update your VBO's and IBO's constantly (see culling) and only want to draw them GL_DYNAMIC_DRAW would be a good choice:

The data store contents will be modified repeatedly (because of culling) and used many times. The data store contents are modified by the application and used as the source for GL drawing and image specification commands.

as I have googled that it can affect the performance of the game

Well, it will cost some performance to cull your terrain but in the end, it will likely gain performance because many vertices (triangles) can be discarded. This performance gain may grow with larger terrains.

It's strange that no one could answer this question. So I finally figured out how to make it by myself.

The solution is in the following link.

The primary reason was that mapbox plots things not based on its vector configuration. It renders things through its matrix as follows.

var m = new THREE.Matrix4().fromArray(matrix); var l = new THREE.Matrix4().makeTranslation(modelTransform.translateX, modelTransform.translateY, modelTransform.translateZ) .scale(new THREE.Vector3(modelTransform.scale, -modelTransform.scale, modelTransform.scale))

Here is an infographic to show when a collision message will be detected by OnCollisionEnter between two objects. Both objects will need some sort of collider, and will most likely need a Rigidbody.

You will not want to set isTrigger as that will not make it physically react to a collision, but will just detect when a collision occurs. It will also not call OnCollisionEnter but will call OnTriggerEnter. Setting both not as triggers, adding a collider, and giving them Rigidbodies should allow the collision to be detected. You will also need to attach this script to one of the objects that have the collider. Are there other components on the objects you are using?

When you create a box of width 1, the left is at -0.5, and the right is at +0.5. This translation was necessary to change its range from [-0.5, 0.5] => [0.0, 1.0]. This way it's easier to sample the 3D texture with the position coordinates, since texture-sampling always requires coordinates between 0 - 1.

Collision to work needs at least one rigidbody component, so attach rigidbody, check layers (Project Settings -> Physics)

Also read this: collisions unity

With normal, non-trigger collisions, there is an additional detail that at least one of the objects involved must have a non-kinematic Rigidbody (ie, Is Kinematic must be switched off). If both objects are kinematic Rigidbodies then OnCollisionEnter, etc, will not be called. With trigger collisions, this restriction doesn’t apply and so both kinematic and non-kinematic Rigidbodies will prompt a call to OnTriggerEnter when they enter a trigger collider.