I have a basic icosphere which i exported from blender with normals as obj.

Here is what i am doing

mesh->vert[i].position = mesh->vert[i].position + noise(mesh->vert[i].position) * mesh->vert[i].normal

for every vertex.

But the triangles are splitting up wierdly like:

The Exact Code:

for(int i=0;i<customModel->mesh->vertexCount;i++)
        {
            Vert tmp = customModelCopy->mesh->vert[i];
            float x = tmp.position.x;
            float y = tmp.position.y;
            float z = tmp.position.z;
            float elev = 0.0f;
            if (noiseBased)
            {
                elev = noiseGen->Evaluate(x, y, z);
                for (NoiseLayerModule* mod : moduleManager->nlModules)
                {
                    if (mod->active)
                    {
                        elev += mod->Evaluate(x, y, z);
                    }
                }
            }
            else {
                float pos[3] = { x, y, z };
                float texCoord[2] = { tmp.texCoord.x, tmp.texCoord.y };
                float minPos[3] = {0, 0, 0};
                float maxPos[3] = {-1, -1, -1};
                elev =  EvaluateMeshNodeEditor(NodeInputParam(pos, texCoord, minPos, maxPos)).value;
                
            }
            tmp.position -= elev * tmp.normal;
            customModel->mesh->vert[i] = tmp;           
        }
        customModel->mesh->RecalculateNormals();

And For Model : https://github.com/Jaysmito101/TerraForge3D/blob/master/TerraForge3D/src/Base/Mesh.cpp https://github.com/Jaysmito101/TerraForge3D/blob/master/TerraForge3D/src/Base/Model.cpp