i’m new on babylon.js and i want to change to knnow if is it possibe to change the scale pls …
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Welcome then 
If you were to manually code yourself the Water Material, you would indeed use some scale over UV. But here, since it’s already implemented, all you need is tweaking wavelength
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if you just wanna change the scale on the bump texture
you can do it by uScale of vScale properties on the texture : O
or as Trico said, changing the wavelength does the same thing
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And you can animate the UV offsets:
thanks all but i want to change the UV because otherwise, with the water texture, the meshes are not aligned properly
Changing that can help me with the mesh who are not aligned properly ?
What does this exactly mean? Show us an example of your “not aligned mesh” so we can understand your problem.
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here is with the texture and without and when the texture is on the mesh are not aligned, sorry for my bad english
No worries.
I believe you mean this part gets unaligned. There is a gap.
As you can see the mesh is still in place (marked by the blue gizmo):
However when using the water material the vertex shader is manipulating/transforming the vertices of the mesh on the GPU so this is kind of expected. Since your ground has low tesselation it moves the whole mesh.
Your mesh:
When creating the ground you can specify the subdivisions parameter to achieve this water like surface:
Subdivided:
Regarding the disc you are out of luck because the geometry doesn’t allow to properly apply the water material because it needs a grid like vertex structure as you can see on the ground.
You can create a plane and use an opacity texture to mask out the unwanted areas of the plane to get the haf of the disc rendered. Or you can create a custom mesh with the vertices positioned in a grid. Or draw the disc in a 3D software…
You can also increase the number of vertices by calling:
planEauDemiDisque.increaseVertices(4) the result will be not satisfying. I believe you want to connect the two meshes to get one water surface.
I think, the best approach will be to draw one mesh for example in Blender and import it to the scene.
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or you can set water.waveHeight = 0 if you don’t wanna displace
like so,
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water.waveHeight = 0
In this case he doesn’t need the watermaterial at all
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ye : )
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