I am using blender 3.0.0 Beta
I have a plane with many vertices and want to raise one of the vertices higher than others using geometry nodes. 
I have two approaches : 1- vertex groups 2- weighted vertices
Whatever you can help is welcome. I have tried to select and separate both ways and all of my efforts have failed so far. 
Please help to understand how the selection works in Blender 3 geometry nodes. Also the raised vertex at the moment is a manual raise 😊 So the ideal output would be : 
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11 
- $\begingroup$ What is the reason for downvotes ? I have a vertex in a plane that I want to raise it using geometry nodes. Isn't here the right place to ask this question? please explain your downvotes. $\endgroup$Spongebob Comrade– Spongebob Comrade2021-11-25 04:43:50 +00:00Commented Nov 25, 2021 at 4:43
- 1$\begingroup$ Hey Spongebob - don't be angry. Just take it as it is. It is a waste of time to even think about it. If you are longer here you might even make worse experiences. But...there are also a lot of really kind, helpful people here...and some are kind of genius...you will see. And that's worth it!! $\endgroup$Chris– Chris2021-11-25 06:35:09 +00:00Commented Nov 25, 2021 at 6:35
- $\begingroup$ what i can think of is...your question is about Blender3.0beta. And some here take the "rules" which are in here VERY strict - they seem to think the are the sheriffs here - but they don't treat people equally - they just do this on special people...mostly just on the "new ones". So the "official" rule is, that this here is just for officially released software...BUT of course you will find a lot of "still" open and answered questions about Blender 3.0 $\endgroup$Chris– Chris2021-11-25 06:37:22 +00:00Commented Nov 25, 2021 at 6:37
- 1$\begingroup$ And to make you feel a bit better - i upvoted your question ;) $\endgroup$Chris– Chris2021-11-25 06:38:11 +00:00Commented Nov 25, 2021 at 6:38
- $\begingroup$ @Chris I didn't know that only questions from stable versions of blender are answered here. I always use development version :( $\endgroup$Harisreedhar– Harisreedhar2021-11-25 06:46:38 +00:00Commented Nov 25, 2021 at 6:46
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1 Answer
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7 Use Index and Compare Floats node for selecting particular point.
In this example 70th index is selected. 
To select only a vertex group you can use this node setup:
Press this button 
in the modifier to toggle it to attribute.
- $\begingroup$ Thanks Harisreedhar Is there any way to check VertexGroup name or Weight value of a vertex ? $\endgroup$Spongebob Comrade– Spongebob Comrade2021-11-25 06:33:15 +00:00Commented Nov 25, 2021 at 6:33
- 1$\begingroup$ Did you mean importing vertex weight into GN and use it as selection? $\endgroup$Harisreedhar– Harisreedhar2021-11-25 06:38:12 +00:00Commented Nov 25, 2021 at 6:38
- 2$\begingroup$ In that case create float field in
Group inputnode and from the GN modifier tab you can put vertex group into that foat field. $\endgroup$Harisreedhar– Harisreedhar2021-11-25 07:08:09 +00:00Commented Nov 25, 2021 at 7:08 - 1$\begingroup$ i added it to you answer, hope you don't mind. $\endgroup$Chris– Chris2021-11-25 07:14:36 +00:00Commented Nov 25, 2021 at 7:14
- 1$\begingroup$ Thank you @Chris $\endgroup$Harisreedhar– Harisreedhar2021-11-25 07:15:47 +00:00Commented Nov 25, 2021 at 7:15