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Import real world terrain into Roblox
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| --[[ | |
| Steps: | |
| 1. Download heightmap Bitmap | |
| e.g. from terrain.party: http://terrain.party/api/export?name=guarda&box=10.186055,46.850130,10.080975,46.778264) | |
| e.g. from earthe | |
| Data Sets: NASA LPDAAC Collections -> NASA SRTM (SRTM 3) Collections | |
| 2. Use this site to convert BMP to Lua: https://codepen.io/Domiii/pen/oMJvoJ?editors=0010 | |
| 3. Copy the final Lua code to workspace.TerrainPixels (ModuleScript) | |
| 4. Run this script! | |
| ]] | |
| local MaxHeight = 1800 | |
| local VoxelSize = 1 | |
| local MaxPixelValue = 255 | |
| local Resolution = 1 -- only use every 4th pixel | |
| -- xLen = 100 | |
| -- zLen = 100 | |
| local VoxelVectorSize = Vector3.new(VoxelSize, VoxelSize, VoxelSize) | |
| local origin = Vector3.new(0, 0, 0) | |
| function GenerateMountain(origin, xLen, zLen, height) | |
| for i = 1, xLen do | |
| for j = 1, zLen do | |
| local y = math.random() * height | |
| --print(y) | |
| for k = 1, y do | |
| --local size = Vector3.new(Amount*Amount-(i*10),Y*(i*2),Amount*Amount-(i*10)) | |
| --local pos = pos + Vector3.new(i * VoxelSize, k*VoxelSize, j*VoxelSize) | |
| local pos = origin + Vector3.new(i*VoxelSize, k*VoxelSize, j*VoxelSize) | |
| game.Workspace.Terrain:FillBlock(CFrame.new(pos), VoxelVectorSize, Enum.Material.Rock) | |
| end | |
| end | |
| end | |
| end | |
| local cancelName = 'TerrainCancel' | |
| local guiName = 'TerrainGenStatusGui' | |
| local cancelledRef | |
| local gui | |
| local statusLabel | |
| function Cleanup() | |
| if game.StarterGui:FindFirstChild(guiName) then | |
| game.StarterGui:FindFirstChild(guiName):Destroy() | |
| end | |
| if workspace:FindFirstChild(cancelName) then | |
| workspace:FindFirstChild(cancelName):Destroy() | |
| end | |
| end | |
| function GetProgressPercent(current, max) | |
| return current / max * 100 | |
| end | |
| function UpdateStatus(current, max) | |
| local progressPct = GetProgressPercent(current, max) | |
| statusLabel.Text = tostring(math.floor(progressPct + 0.5)) .. '%' | |
| end | |
| function ShowTerrainGui() | |
| gui = Instance.new('ScreenGui') | |
| gui.Name = guiName | |
| statusLabel = Instance.new('TextLabel') | |
| statusLabel.Parent = gui | |
| statusLabel.Size = UDim2.new(1, 0, 0, 30) | |
| gui.Parent = game.StarterGui | |
| cancelledRef = workspace:FindFirstChild(cancelName) | |
| if not cancelledRef then | |
| cancelledRef = Instance.new('BoolValue') | |
| cancelledRef.Name = cancelName | |
| cancelledRef.Parent = workspace | |
| end | |
| cancelledRef.Value = false | |
| -- select the Cancel object | |
| local select = { cancelledRef } | |
| game.Selection:Set(select) | |
| end | |
| function CheckCancel() | |
| if cancelledRef and cancelledRef.Value then | |
| print('Terrain Generation Cancelled') | |
| Cleanup() | |
| return true | |
| end | |
| return false | |
| end | |
| function GetMaterial(yNormalized) | |
| local material | |
| if yNormalized < 0.4 then | |
| material = Enum.Material.Grass | |
| elseif yNormalized < 0.8 then | |
| material = Enum.Material.Rock | |
| else | |
| material = Enum.Material.Snow | |
| end | |
| return material | |
| end | |
| function GenTerrainFromHeightmap(origin) | |
| local pixels = require(workspace.TerrainPixels:Clone()) | |
| local xLen = #pixels | |
| local zLen = #pixels[1] | |
| Cleanup() | |
| ShowTerrainGui() | |
| workspace.Terrain:Clear() | |
| for i = 1, xLen, Resolution do | |
| local row = pixels[i] | |
| for j = 1, zLen, Resolution do | |
| local px = row[j] | |
| local yNormalized = px / MaxPixelValue | |
| local material = GetMaterial(yNormalized) | |
| y = yNormalized * MaxHeight | |
| --for k = 1, y do | |
| local pos = origin + Vector3.new(i*VoxelSize, 0, j*VoxelSize) | |
| local size = Vector3.new(VoxelSize, y * VoxelSize, VoxelSize) | |
| game.Workspace.Terrain:FillBlock(CFrame.new(pos), size, material) | |
| --end | |
| end | |
| if CheckCancel() then return end | |
| UpdateStatus(i, xLen) | |
| wait() | |
| end | |
| print('Terrain Generation Finished!') | |
| Cleanup() | |
| end | |
| --GenTerrainFromHeightmap(origin, pixels) | |
| --GenerateMountain(origin, xLen, zLen, height) | |
| function GenTerrainBetweenParts(basePart) | |
| Cleanup() | |
| ShowTerrainGui() | |
| workspace.Terrain:Clear() | |
| local material = Enum.Material.Grass | |
| local size = basePart.Size | |
| local pos1 = basePart.Position - size / 2 | |
| local pos2 = pos1 + size | |
| local y = basePart.Position.Y + size.Y | |
| --local y = (pos1.Y + pos2.Y) / 2 | |
| local up = Vector3.new(0, 1, 0) | |
| for z = pos1.Z, pos2.Z do | |
| for x = pos1.X, pos2.X do | |
| local origin = Vector3.new(x, y, z) | |
| local ray = Ray.new(origin, origin + up * 100000) | |
| local terrainCellsAreCubes = false | |
| local ignoreWater = true | |
| local part, pos, normal, material2 = workspace:FindPartOnRay ( | |
| ray, | |
| basePart, | |
| terrainCellsAreCubes, | |
| ignoreWater | |
| ) | |
| --print(x,y,z, part, pos, normal, material2) | |
| -- local p = Instance.new('Part') | |
| -- p.Shape = Enum.PartType.Ball | |
| -- p.Position = origin | |
| -- p.Parent = workspace.Tmp | |
| --if part then | |
| local blockSize = Vector3.new(1, (pos - origin).Y, 1) | |
| -- NOTE: basePos is the center of the block! | |
| local basePos = origin + blockSize/2 | |
| game.Workspace.Terrain:FillBlock(CFrame.new(basePos), blockSize, material) | |
| --end | |
| end | |
| if CheckCancel() then return end | |
| UpdateStatus(z-pos1.Z, pos2.Z-pos1.Z) | |
| wait() | |
| end | |
| print('Terrain Generation Finished!') | |
| Cleanup() | |
| end | |
| GenTerrainBetweenParts(workspace.Baseplate) |
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