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--
-- raylib [models] example - Heightmap loading and drawing
--
-- This example has been created using raylib 1.6 (www.raylib.com)
-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
--
-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
--
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-- Initialization
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local screenWidth = 800
local screenHeight = 450
InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing")
-- Define our custom camera to look into our 3d world
local camera = Camera(Vector3(18.0, 16.0, 18.0), Vector3(0.0, 0.0, 0.0), Vector3(0.0, 1.0, 0.0), 45.0)
local image = LoadImage("resources/heightmap.png") -- Load heightmap image (RAM)
local texture = LoadTextureFromImage(image) -- Convert image to texture (VRAM)
local map = LoadHeightmap(image, Vector3(16, 8, 16)) -- Load heightmap model with defined size
map.material.texDiffuse = texture -- Set map diffuse texture
local mapPosition = Vector3(-8.0, 0.0, -8.0) -- Set model position (depends on model scaling!)
UnloadImage(image) -- Unload heightmap image from RAM, already uploaded to VRAM
SetCameraMode(CameraMode.ORBITAL) -- Set an orbital camera mode
SetCameraPosition(camera.position) -- Set internal camera position to match our custom camera position
SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
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-- Main game loop
while not WindowShouldClose() do -- Detect window close button or ESC key
-- Update
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camera = UpdateCamera(camera) -- Update internal camera and our camera
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-- Draw
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BeginDrawing()
ClearBackground(RAYWHITE)
Begin3dMode(camera)
-- NOTE: Model is scaled to 1/4 of its original size (128x128 units)
DrawModel(map, mapPosition, 1.0, RED)
DrawGrid(20, 1.0)
End3dMode()
DrawTexture(texture, screenWidth - texture.width - 20, 20, WHITE)
DrawRectangleLines(screenWidth - texture.width - 20, 20, texture.width, texture.height, GREEN)
DrawFPS(10, 10)
EndDrawing()
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end
-- De-Initialization
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UnloadTexture(texture) -- Unload texture
UnloadModel(map) -- Unload model
CloseWindow() -- Close window and OpenGL context
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