Rajan Craveri - micron

Is it possible to access the third dimension in gen?

I'm looking for a cell.z or norm.2 or something similar

I'm working with "jit.bfg 3 float32 10 10 10" to create 3d vector fields

jit.gen

swiz

norm

comment

codebox

message

jit.gl.handle

jit.gl.mesh

button

jit.matrix

toggle

jit.world

Is it possible to access the third dimension in gen?
I'm looking for a cell.z or norm.2 or something similar
I'm working with "jit.bfg 3 float32 10 10 10" to create 3d vector fields

Is it possible to access the third dimension in gen?
I'm looking for a cell.z or norm.2 or something similar
I'm working with "jit.bfg 3 flo

how-to-access-the-third-dimension-in-gen

Short answer: route norm/cell into [swiz z].

Longer answer: The cell and norm operators will have as many dimensions as there are dims in the matrix/texture coming to the jit.gen/jit.gl.pix's first inlet. So if you are sending the "jit.bfg 3 float32 10 10 10" to the first inlet, then cell, norm etc. will be 3-element vectors. You can pull out individual elements (dims) of the vector using [swiz x], [swiz z] etc. (or [swiz 0], [swiz 2] etc.). And you can pack values into bigger vectors again using [vec] and [concat] operators.

Short answer: route norm/cell into [swiz z]. 

Thanks Graham, but in my test 
norm->swiz 2 
is always 0

So jit.spill is only showing the first slice of the 3rd dimension (the lists should have 27 elements, not 9!). A quick test of swapping the [norm] for [noise] in your patcher verifies that the jit.gl.mesh is only receiving 9 points too -- I think jit.gl.mesh can't handle 3d matrices either.

In general support for 3D matrices in Jitter is much more limited than 2D matrices, unfortunately.

So jit.spill is only showing the first slice of the 3rd dimension (the lists should have 27 elements, not 9!). A quick test of swapping the [norm] for [noise] in your patcher verifies that the jit.gl.mesh is only receiving 9 points too -- I think jit.gl.mesh can't handle 3d matrices either. 

In general support for 3D matrices in Jitter is much more limited than 2D matrices, unfortunately. 

So here's a demo showing that a) jit.gl.mesh is only showing the first two dimensions of the incoming matrix, and b) the norm *is* generating the 3rd axis data as it should:

So Joshua just sent me a patcher that shows how to convert a 3D matrix into a 2D matrix, for use with jit.gl.mesh, jit.spill, etc. Awesome!

https://cycling74.com/forums/3d-matrix-with-jit-gl-multiple

 it's also probably better to work with a 1D matrix and generate 3D coordinates when needed via a jit.gen or jit.gl.pix.

However, as noted & demonstrated in https://cycling74.com/forums/3d-matrix-with-jit-gl-multiple it's also probably better to work with a 1D matrix and generate 3D coordinates when needed via a jit.gen or jit.gl.pix. 

and for the last patch to convert 3d into 2d

at the end I think you are right it's better to work with 2D matrix

Wow Graham thank you for your time,
and for the last patch to convert 3d into 2d
at the end I think you are right it's better to work with 2D matrix

How to access the third dimension in gen