25 lines
606 B
Lua
25 lines
606 B
Lua
local M = {}
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function M.screen_to_world(x, y, z, camera_id)
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local projection = camera.get_projection(camera_id)
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local view = camera.get_view(camera_id)
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local w, h = window.get_size()
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-- https://defold.com/manuals/camera/#converting-mouse-to-world-coordinates
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local inv = vmath.inv(projection * view)
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x = (2 * x / w) - 1
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y = (2 * y / h) - 1
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z = (2 * z) - 1
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local x1 = x * inv.m00 + y * inv.m01 + z * inv.m02 + inv.m03
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local y1 = x * inv.m10 + y * inv.m11 + z * inv.m12 + inv.m13
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local z1 = x * inv.m20 + y * inv.m21 + z * inv.m22 + inv.m23
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return x1, y1, z1
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end
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if true then
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end
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return M |