Hello, Iām having issue with this, could someone please tell me how can I get a smooth shading on the 3D text ?
I tried textMaterial.flatShading = false
but nothing works,
Help please ! 
From my guess itās because of how the vertices are setup no? Perhaps they arenāt merged. Is there any solution you guys can think of, other than creating the geometry and materials in blender or massively subdividing?
then merge it? if there is no change, they were merged.
How might I do so, please kind sir, iām very new to all this.
Iām on my phone, Iāll test this and report back.
geometry.mergeVertices() and geometry.computeVertexNormals()
This method does not exist. Try it with BufferGeometryUtils.mergeVertices().
Doesnāt increasing the number of curve segments for the text help here?
In some cases ( rendering, then manipulating vertex)
you may need to update the vertex + normals, for the shader to render the new values correctly. Not sure itās effective in your case, give it a try.
mesh.geometry.attributes.position.needsUpdate = true;
mesh.geometry.computeVertexNormals();
I can confirm that recalculating normals will work in smoothing things out, if itās about altering vertices - the terrain in my project looks much smoother when done via āmanualā vertex altering and recomputing normals (as opposed to, say, a displacement map with a higher level of detail).
I guess the main question here is whether this is a case of adjusting the normals, or having more segments in the rounded parts of the shapes, since smoothing is an effect in the latter case too (something quite visible in the case of spheres).
Too bad Three.jsā atrocious level of backward compatibility with previous versions and ways of doing things prevents easy testing of a similar code, otherwise weād already have an answer to thatā¦ 
Sadly it didnāt worked, nothing of the previously advised solutions worked on the font.
Iām starting to think itās just because of how the font is generated and canāt be bypassed other than creating the font properly in blender and exporting/loading.
let mesh_2=new THREE.Mesh(text.geometry.clone(),new THREE.MeshNormalMaterial());
mesh_2.geometry=THREE.BufferGeometryUtils.mergeVertices(mesh_2.geometry,1e-0) ;
mesh_2.geometry.computeVertexNormals();
mesh_2.position.set(1,0,0);
scene.add(mesh_2);
I just canāt believe that nothing worked, since it does for me (finally figured out how to use the font loader, I was mistakenly copying the wrong font loader file before and then wondered why the importing didnāt work), by increasing the number of curve segments as advised - here, I set them to 36 and also set the bevel segments to 20 to be consistent, and now the ādā shape is smooth like baby skin:
Ah yes this works obviously, but as I said in the first message āother than massively subdividing?ā, Iām trying to keep things lightweight, so disliked to add more polygons.
I was looking for a solution like in blender āshade smoothā, that works on something even low poly
Thanks a lot for all your help in any case !!
Ahh, ok, read that but somehow missed it - my bad. Hmmā¦ maybe some blurring can do the job then? Apart from iterating through and adjusting the position attribute followed by recomputing normals for the whole geometry, that isā¦ 
P.S. Altering the position attribute for a sphere is done like this (donāt know for the text though, it probably depends on its specific segments):
var posidx, posval = new THREE.Vector3(), dirval = new THREE.Vector3(), disval;
for (var j = 0; j < geometry.parameters.heightSegments + 1; j++)
{
for (var i = 0; i < geometry.parameters.widthSegments + 1; i++)
{
// ideally you'd only alter the positions in curved segments here
posidx = (geometry.parameters.widthSegments + 1) * j + i;
posval.fromBufferAttribute(geometry.attributes.position, posidx);
dirval.fromBufferAttribute(geometry.attributes.normal, posidx);
// the distance by which you alter vertices will depend here
disval = 0;
posval.addScaledVector(dirval, disval);
geometry.attributes.position.setXYZ(posidx, posval.x, posval.y, posval.z);
};
};
geometry.computeVertexNormals();
geometry.attributes.position.needsUpdate = true;
If you can figure out a way to adjust vertices only for positions belonging to curved segments and in a way that follows some trigonometric function, something similar to this will probably do it. Iām not sure if simply adjusting vertices with a hardcoded value to trigger smoothing via recomputing normals will work, but you can try.
Donāt use THREE.BufferGeometryUtils in this case, just simply BufferGeometryUtils. That will solve the issue.
Thanks, yeah that worked, sadly as shown on the last picture, the vertice merging seems to have destroyed the geometry
I donāt understand how @Chaser_Code managed to have his nice result above with the text smoothed
I had a similar result as you did, after using @Chaser_Codeās code on your text and settings. Change the text to 'three.js' and its settings to the ones in the example here, and it will work (youāll have to zoom out a bit though):
As for the value of 1e-0 or the changes needed to make your (or any, for that matter) text work, youāll have to ask @Chaser_Code for details.
