griz

I'm trying to create a 3D space in which the position of a gridshape in relation to several other points or areas (gradients) determines some output values.

I have my gridshape moving in my phys world the way I want, but finding the proximity to other points is baffling me.

My first problem is how to fill the planes with the right numbers, and my second is how to use the position of the cursor to navigate the matrix.

I'm trying to create a 3D space in which the position of a gridshape in relation to several other points or areas (gradients) determines some output values.
I have my gridshape moving in my phys world the way I want, but finding the proximity to other points is baffling me.

spatial-mapping-2

I'm sure there's probably a tutorial or two that will answer my questions, does anyone know which?

I've read the spatial mapping tutorial but it doesn't quite go far enough.

The colour swatch warping in that tut is a 2D approximation of what I'd like to achieve in 3D, with each area of colour being a synth preset or similar.

I'm sure there's probably a tutorial or two that will answer my questions, does anyone know which?
I've read the spatial mapping tutorial but it doesn't quite go far enough.
The colour swatch warping in that tut is a 2D approximation of what I'd like to achieve in 3D, with each area of colour being a synth preset or similar.


Can't you just use the formula to calculate the distance between two objects in 3d space ??

I think just calculating your data with formula and then adding it into a matrix is a good way to get started.

Can't you just use the formula to calculate the distance between two objects in 3d space ??
I think just calculating your data with formula and then adding it into a matrix is a good way to get started.


Thanks, I've already done that, but I need more flexibility in terms of manipulating the space.

Maybe I should break this down into separate questions.

I have xyz data and I want to use it to scroll through a matrix with interpolation.

Lets say one plane has a gradient... I want my cube to be more opaque at one side than the other. git.gl.volume hurts my gpu :/

Thanks, I've already done that, but I need more flexibility in terms of manipulating the space.
Maybe I should break this down into separate questions.

How do I navigate a matrix?
I have xyz data and I want to use it to scroll through a matrix with interpolation.

How do I display a 2D matrix in 3D?
Lets say one plane has a gradient... I want my cube to be more opaque at one side than the other. git.gl.volume hurts my gpu :/


Also, I should say that calculating the distance between two objects is fine, but maybe I want to use jit.phys.multiple to create a cloud of control points... Seems better to load the values from RAM instead of calculate them every time.

Well... thanks guys. Tutorial 50 was the one I needed in order to understand gradients in 3D matrices.

I've still not worked out how to present this in an openGL environment efficiently. jit.gl.volume really canes my gpu. Any other possibilities?

Well... thanks guys. Tutorial 50 was the one I needed in order to understand gradients in 3D matrices.
I've still not worked out how to present this in an openGL environment efficiently. jit.gl.volume really canes my gpu. Any other possibilities?


perhaps posting a patch will illustrate better what you are trying to achieve.

Spatial mapping