I have created a simulation of positions of 4672 of the nearest galaxies: Web Simulation of 3D distribution of galaxies < 200 Mpc from Milky Way The code is here: galaxies/index.htm at master · RiteshSingh/galaxies · GitHub The galaxies are points. I want to color a point on mouseover and load th…

@marquizzo I’ve tried to do something like this: https://jsfiddle.net/prisoner849/y5xqzu1c/ It’s not so precise. Or I do something wrong :slight_smile:

See this example , it uses a Points object with a custom ShaderMaterial that allows for custom colors on each vertex, instead of across the entire material. Maybe instead of changing the size when you mouse over , you’d like to change its customColor rgb values.

Thank you @marquizzo for your most kind reply :pray: :pray: I am able to change color, as well as do basic raycasting, however, I am unable to separately raycast/color individual point. All the points are raycasted and colored as a group as seen here: Web Simulation of 3D distribution of galaxies < …

Did you read through the code of the example I gave you? It looks like you didn’t change anything, because you’re still updating the color of the material, which affects the entire set of points. [image] RiteshSingh: selectedObject.material.color.set( '#69f' ); You need to update the color a…

@prisoner849 yeah, man! You’ve got to set your raycaster’s precision threshold to something lower. See line 74 below, all I changed was raycaster.params.Points.threshold = 0.1; The default value is 1. https://jsfiddle.net/marquizzo/29ogvp6z/1/

Totally forgot about that setting :smile:

Did you read through the code of the example I gave you? It looks like you didn’t change anything, because you’re still updating the color of the material, which affects the entire set of points. @marquizzo Deeply grateful for your patience with me. Sorry if I seem to not put in enough effort. I …

Galaxies simulation: Change color of a point and display text on mouseover

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prisoner849 May 15, 2020, 3:07pm 4

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Galaxies simulation: Change color of a point and display text on mouseover

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