Created
August 13, 2024 18:50
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Godot shader that displays a white circle based on a formula for distance between a line and a point
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| shader_type spatial; | |
| render_mode unshaded; | |
| uniform float _Radius = 1.; | |
| //https://mathworld.wolfram.com/Point-LineDistance3-Dimensional.html | |
| float distance_between_point_and_line(vec3 ls, vec3 le, vec3 point) { | |
| //ls = line start | |
| //le = line end | |
| //point = posiiton of point | |
| float dis = length(cross((le-ls),(ls-point)))/length(le-ls); | |
| return dis; | |
| } | |
| void fragment() { | |
| ALBEDO.rgb = vec3(distance_between_point_and_line(EYE_OFFSET,EYE_OFFSET+VIEW,NODE_POSITION_VIEW)>_Radius?0.0:1.0); | |
| } | |
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