mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-05-05 19:09:23 -05:00
Emma Broman
d77836d910
* Create a RenderableNodeLine example asset * First version of node direction hint renderable (arrow) * Add possibility to set length as a multiplier of the bounding sphere * Draw arrow cylinder using index array * Update exponents and min max values for lengths * Draw arrow head * Only update arrow geometry when positions change * Add some properties to control visuals of arrow * Implement invert option * Add normals and shading * Set arrow head size by length percentage instead of angle * Add bottom circle to cone * Cleanup and update examples * Remove non-existing property from example asset * Fix vertices not updating if anchor node was changed And some missing updates on property change * Start cleaning up some shape rendering helper functions * Cleanup code and move cylinder function to helper class * Refactor cylinder creation code (fewer loops over same vector) * Update transformations to correctly scale and place arrow * Add the cone to make the arrowhead * Update faulty triangle normals * Add property visibilities * Rename NodeDirectionHint to NodeArrow * Apply suggestions from code review Co-authored-by: Alexander Bock <alexander.bock@liu.se> --------- Co-authored-by: Alexander Bock <alexander.bock@liu.se>
78 lines
2.2 KiB
Lua
78 lines
2.2 KiB
Lua
local earth = asset.require("scene/solarsystem/planets/earth/earth")
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local moon = asset.require("scene/solarsystem/planets/earth/moon/moon")
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local mars = asset.require("scene/solarsystem/planets/mars/mars")
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local EarthRadius = 6371000.0
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local ArrowExample = {
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Identifier = "RenderableNodeArrowExample",
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Parent = earth.Earth.Identifier,
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Renderable = {
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Type = "RenderableNodeArrow",
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StartNode = earth.Earth.Identifier,
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EndNode = mars.Mars.Identifier,
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Color = { 0.8, 1.0, 0.8 },
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Offset = 2 * EarthRadius,
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Length = 5 * EarthRadius,
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Width = 900000.0
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},
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GUI = {
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Name = "Node Arrow Example",
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Path = "/Example",
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Description = [[Example node direction arrow, using absolute sizes]]
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}
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}
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-- Relative values: Multiplied with bounding sphere
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local ArrowExample_RelativeUnits = {
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Identifier = "RenderableNodeArrowExample_Relative",
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Parent = earth.Earth.Identifier,
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Renderable = {
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Type = "RenderableNodeArrow",
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StartNode = earth.Earth.Identifier,
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EndNode = moon.Moon.Identifier,
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Color = { 0.78, 0.0, 1.0 },
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UseRelativeOffset = true,
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UseRelativeLength = true,
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Offset = 2.0,
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Length = 5.0,
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Width = 900000.0,
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Invert = true -- Point to start node instead of end node
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},
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GUI = {
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Name = "Node Arrow Example (relative units)",
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Path = "/Example",
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Description = [[Example node direction arrow, using relative sizes]]
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}
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}
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asset.onInitialize(function()
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openspace.addSceneGraphNode(ArrowExample)
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openspace.addSceneGraphNode(ArrowExample_RelativeUnits)
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end)
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asset.onDeinitialize(function()
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openspace.removeSceneGraphNode(ArrowExample_RelativeUnits)
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openspace.removeSceneGraphNode(ArrowExample)
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end)
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asset.export(ArrowExample)
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asset.export(ArrowExample_RelativeUnits)
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asset.meta = {
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Name = "RenderableNodeArrow Example asset",
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Version = "1.0",
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Description = [[Examples of the RenderableNodeArrow renderable, that can be used to draw
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an arrow pointing from one scene graph node in the direction of another. Note that
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the arrows are generated as objects in 3D space and need to have a size that is
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suitable for their 3D context.]],
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Author = "OpenSpace Team",
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URL = "http://openspaceproject.com",
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License = "MIT license"
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}
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