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Is there a way to create a heightmap manually or to access its vertices ?


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Hi again AR!  Also, you might want to check out....


line 809 - mesh.applyDisplacementMap()  and  line 834 - mesh.applyDisplacementMapFromBuffer()

I used a slightly modified copy of applyDisplacementMapFromBuffer() in this demo... 


I needed to rotate the image around, so I had to hack on the canvas that was being used for the displace.  That's why I used a rogue copy of the function in the playground code... instead of using the default framework version.   But maybe the rogue version was not needed.  I'm not a very good programmer.  :)

Rogue?  Maybe "vagabond" is a better word. *shrug*

Grab a zip or a copy... have some fun, show us the cool stuff you make.  Fun with heightMapping (from buffers/arrays).  :)

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You should use a ground with more subdivisions (like var ground = BABYLON.Mesh.CreateGround("ground", 2, 2, 100, scene, true); )


And by the way, the buffer should contain a picture with grayscale values. If you want to update a mesh you can use mesh.getVerticesData and mesh.updateVerticesData:


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ok, here is an updated sample : http://playground.babylonjs.com/#1AVEYO#10

I am using 100 subdivisions now. Still trying to figure this one out. Used  mesh.getVerticesData() to get the vertex data and for setting the data I tried mesh.updateVerticesData and mesh.setVerticesData 

By the way, can the debug layer be modified to show the world axes too ? 

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  • 2 years later...

var positions = ground.getVerticesData(BABYLON.VertexBuffer.PositionKind);
var normals =   ground.getVerticesData(BABYLON.VertexBuffer.NormalKind);
var colors =    ground.getVerticesData(BABYLON.VertexBuffer.ColorKind);
var uvs =       ground.getVerticesData(BABYLON.VertexBuffer.UVKind);

var indices =   ground.getIndices();

all return null for me when applied to a height map generated ground.

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