27 lines
856 B
Nim
27 lines
856 B
Nim
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import myou_engine
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import random
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# NOT calling this to have always the same results
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#randomize()
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let engine = newMyouEngine(1024, 768)
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let scene = engine.newScene()
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let cam = scene.newCamera(cam_type = Orthographic, ortho_scale = 2)
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cam.position.z = 10
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# vertex_count is the initial capacity and is not necessary
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let lines = scene.newMesh("lines", draw_method=Lines, vertex_count=64)
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lines.materials.add engine.newSolidMaterial("white", vec4(1))
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scene.pre_draw_callbacks.add proc(scene: Scene, dt: float) =
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# ensure_capacity enlarges the size of the mesh if the next N vertices
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# don't fit, by making it at least twice the size
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lines.ensure_capacity(1)
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lines.add_vertex(vec3(rand(1f), rand(1f), 0) * 2f - 1f)
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# call update_varray() only once after making changes
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lines.data.update_varray()
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scene.enable_render()
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engine.run()
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