Turánszki János
59 lines
1.8 KiB
Lua
59 lines
1.8 KiB
Lua
killProcesses() -- stops all running lua coroutine processes
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backlog_post("---> START SCRIPT: trail_renderer.lua")
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local trail = TrailRenderer()
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trail.SetWidth(0.2)
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trail.SetColor(Vector(10,0.1,0.1,1))
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trail.SetBlendMode(BLENDMODE_ADDITIVE)
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trail.SetSubdivision(100)
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-- Trail begins as red:
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trail.AddPoint(Vector(-5,2,-3), 4, Vector(10,0.1,0.1,1))
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trail.AddPoint(Vector(5,1,1), 0.5, Vector(10,0.1,0.1,1))
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trail.AddPoint(Vector(10,5,4), 1.2, Vector(10,0.1,0.1,1))
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trail.AddPoint(Vector(6,8,2), 1, Vector(10,0.1,0.1,1))
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trail.AddPoint(Vector(-6,5,0), 1, Vector(10,0.1,0.1,1))
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-- Trail turn into green:
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trail.AddPoint(Vector(0,2,-5), 1, Vector(0.1,100,0.1,1))
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trail.AddPoint(Vector(1,3,5), 1, Vector(0.1,100,0.1,1))
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trail.AddPoint(Vector(-3,2,8), 1, Vector(0.1,100,0.1,1))
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trail.Cut() -- start a new trail without connecting to previous points
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-- Last trail segment is blue:
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trail.AddPoint(Vector(-5,0,-2), 1, Vector(0.1,0.1,100,1))
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trail.AddPoint(Vector(5,8,5), 1, Vector(0.1,0.1,100,1))
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-- First texture is a circle gradient, this makes the overall trail smooth at the edges:
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local texture = texturehelper.CreateGradientTexture(
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GradientType.Circular,
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256, 256,
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Vector(0.5, 0.5), Vector(0.5, 0),
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GradientFlags.Inverse,
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"rrrr"
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)
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trail.SetTexture(texture)
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-- Second texture is a linear gradient that will be tiled and animated to achieve stippled look:
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local texture2 = texturehelper.CreateGradientTexture(
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GradientType.Linear,
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256, 256,
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Vector(0.5, 0), Vector(0, 0),
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GradientFlags.Inverse | GradientFlags.Smoothstep,
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"rrrr"
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)
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trail.SetTexture2(texture2)
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runProcess(function()
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local scrolling = 0
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while true do
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scrolling = scrolling - getDeltaTime()
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trail.SetTexMulAdd2(Vector(10,1,scrolling,0))
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DrawTrail(trail)
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render() -- this loop will be blocked until render tick
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end
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end)
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backlog_post("---> END SCRIPT: trail_renderer.lua")
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