Rough Terrain (Smooth ?)

[Dad72]

Hi,

 

That is why I talked about the feature 'smooth' on the ground. I wanted to flatten parts of ground and the edges are in saw tooth. With a brush smooth, this lisserais the edges.

 

You can see on my screen copy :

 

 

This project shalt distribute freely in the future.

 

Thanks

[GameMonetize]

For me this is beyond the scope of babylon.js

[Dad72]

I speak of worldmonger which can have this functionality  for the completed.

[Dad72]

And I would add also: Worldmonger is actually part of Babylon.js ? Why worldmonger can high the vertex but cannot smooth the vertex high ?

[GameMonetize]

Worldmonger is just a technical demo of babylon.js AFAC

[Dad72]

That is what AFAC ?

 

Yes, agreed. But it would be interesting to complement this demo technic to make a small product more finished.

This would help me to understand how to make that my project leads to something presentable. Without this, my project will not see the day and this shalt be 1 years of lost work for me, because my project canst not be circulated to the public without its features that I do not feel capable of achieving: "smooth", "paint texture", "radius brush visible". That is all that is missing to worldmonger.

Thank you for your attention.
 

[Dad72]

I just see: the particles no longer works on the demo of WorldMonger.

I know I am casse pied

[GameMonetize]

It works for me

[Dad72]

Ah yes, this re works .just now, I had no particle. Sorry

 

That is what AFAC ?

[Wingnut]

Beautiful GUI/IDE, dad72!

[Dad72]

Thank you Wingnut. It is a pleasure to have opinions.
I hope the distribute a day and be of benefit to the community. Unfortunately, I have not yet integrated into the English language in it, but the system multi-language is present.


 

 

[GameMonetize]

It was AFAIC : As far as I'm concerned

[Dad72]

Is this that someone has an idea of how smooth the ground? I used the demo of WorldMonger.

 

Thanks

[Dad72]

It would seem that nobody knows the answer, this must be too complicate for everyone....
I have more that has shut down my project.... I cannot consider restart with another engine.
 

[GameMonetize]

I understand your problem but if you need to smooth the geometry you have to add vertices on your object

[Dad72]

Thank you for your reply. But that is what allows you to add vertices to the ground?

[GameMonetize]

Actually when you update the ground you have two options:

- just add more vertices at ground's creation: it will allow you to smooth the edges without doing nothing else

- change the code you use to update the ground : could you link it here?

[Dad72]

I used the demo WorldMonger. I think that is in _elevateFaces which elevate vertices.

WORLDMONGER.ElevationControl.prototype._elevateFaces = function (pickInfo, radius, height)    {        this._prepareDataModelForElevation();        this._selectedVertices = [];        // Impact zone        var sphereCenter = pickInfo.pickedPoint, index;                sphereCenter.y = 0;        // Determine list of vertices        for (var subIndex = 0; subIndex < this._ground.subMeshes.length; subIndex++)        {            var subMesh = this._ground.subMeshes[subIndex];            if (!this._isBoxSphereIntersected(subMesh.getBoundingInfo().boundingBox, sphereCenter, radius)) continue;                        for (index = subMesh.verticesStart; index < subMesh.verticesStart + subMesh.verticesCount; index++) {                var position = this._groundPositions[index];                sphereCenter.y = position.y;                var distance = BABYLON.Vector3.Distance(position, sphereCenter);                if (distance < radius) {                    this._selectedVertices[index] = distance;                                    }            }        }        // Elevate vertices            for (var selectedVertice in this._selectedVertices)            {                var position = this._groundPositions[selectedVertice];                var distance = this._selectedVertices[selectedVertice];                var fullHeight = height * this.direction * this._invertDirection;                if (distance < radius * 0.3) position.y += fullHeight;                else { position.y += fullHeight * (1.0 - (distance - radius * 0.3) / (radius * 0.7)); }                           if (position.y > this.heightMax) position.y = this.heightMax;                else if (position.y < this.heightMin) position.y = this.heightMin;                this._groundVerticesPositions[selectedVertice * 3 + 1] = position.y;                this._updateSubdivisions(selectedVertice);            }                        // Normals        this._reComputeNormals();        // Update vertex buffer        this._ground.updateVerticesData(BABYLON.VertexBuffer.PositionKind, this._groundVerticesPositions);        this._ground.updateVerticesData(BABYLON.VertexBuffer.NormalKind,this._groundVerticesNormals);            };

[GameMonetize]

This line is the key:

if (distance < radius * 0.3) position.y += fullHeight;
                else { position.y += fullHeight * (1.0 - (distance - radius * 0.3) / (radius * 0.7)); }

 

if you need to smooth things up, just add a small variable there:

if (distance < radius * 0.1) position.y += fullHeight * 0.5;

                else { position.y += 0.5 * fullHeight * (1.0 - (distance - radius * 0.1) / (radius * 0.9)); }

[Dad72]

Ah, ok? I was not far away. i suspected of or i have had to change, but I don't know how change.
Thank You DeltaKosh, I will check that. This to me is a great help.

[Dad72]

This changes nothing, it elevate the vertices and not smooth.

 

 

[GameMonetize]

So try to add more vertices when creating the ground

[Dad72]

I cannot do the loading of the field. Because I saved in a json file any change of vertices and when i reloaded, it is the file that is read to generate the ground. If I added a subdivision, the file no longer corresponds to the number of vertices. I would like the users of my editor can have a smoothing tool while he edited the ground.

[GameMonetize]

this is a physic limitation with 100 vertices you can get a smooth effect :0

[Dad72]

I am sorry, I do not understand: "with 100 vertices you can get a smooth effect :0"