Loading DSM (. Webp) terrain data using terrainlayer

[Paweled]

Parameters I use:
meshMaxError:0,
elevationDecoder:{
rScaler: 65.536,
gScaler: 0.256,
bScaler: 0.001,
offset: -6000
},

However, a square grid will appear, and the effect is very unsatisfactory. Does anyone know how to solve it?
The following figure shows the grade 17 tile effect：

[kylebarron]

That's because you're using meshMaxError set to 0 I believe. That requires every triangle approximate the underlying grid exactly... which means the mesh ends up being exactly the underlying pixel-based terrain data.

[Paweled]

The following figure shows:wireframe:true
It should be connected by smooth triangles rather than stacked into cubes.

[Paweled]

I use polygonlayer to draw triangles as follows;
new PolygonLayer({
data:pointData,
pickable: false,
filled: false,
lineWidthMinPixels: 0,
coordinateSystem: COORDINATE_SYSTEM.CARTESIAN,
getPolygon: d => d.contour,
getLineColor: [0,0,0],
getFillColor: d =>[255,255,0,150],
getLineWidth: 0.03
})

[Paweled]

I think it should be the coordinate system.

I use WGS84 coordinates for boundaries in loaders.gl
I use polygonlayer to draw triangles as follows;

new PolygonLayer({
data:pointData,
pickable: false,
filled: false,
lineWidthMinPixels: 0,
getPolygon: d => d.contour,
getLineColor: [0,0,0],
getFillColor: d =>[255,255,0,150],
getLineWidth: 0.03
})