Re: set raycast direction with a Null?

[Christopher]

Sam - Raffaele is right. Hopefully someone can give you guidance, ICE is not easy if you don't know the math. I'm still learning and studying and have made a step up :) Christopher Raffaele Fragapane Sunday, April 07, 2013 5:39 PM I would argue your biggest stumbling block is more not knowing the math fundamentals involved, and then thinking it's because you don't know what nodes do what, when if you knew those fundamentals you wouldn't be left wondering in first place. I mean absolutely no offense with this, Sam, just pointing you in the general direction of what you'd be best off studying next IMO. -- Our users will know fear and cower before our software! Ship it! Ship it and let them flee like the dogs they are! Sam Sunday, April 07, 2013 3:21 PM Thanks Peter, that works great! The problem I was having was that I was trying to plug in the Ori data into the Matrix to Vector node. This seems to be my biggest stumbling block with ICE. I know what needs to be done, but sometimes I just can’t figure out what nodes need to be plugged in to what to make it work.   From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Peter Agg Sent: Sunday, April 07, 2013 3:36 AM To: softimage@listproc.autodesk.com Subject: Re: set raycast direction with a Null?   Just to expand on what Matt said:   If you want a direction with any object in ICE, the easiest way is to get it's global kinematics and pipe that into a 'Matrix 4x4 to Vector 3D' node. The node will spit out 4 vectors - ignore the one labeled 'translation' and pick one of the 3 depending on what axis you want to get the direction of. The order is XYZ as you'd expect.   You can then pipe out your chosen axis into the direction of the raycast node and the translation into the position. You can then use that null as a complete raycast controller.   On 7 April 2013 07:54, Sam <sbowl...@cox.net> wrote: I couldn’t figure this one out. Andy’s compound used a Select Case and a rotate vector to convert the orientation of the null to a vector (Thanks Andy!). I was wondering if you could elaborate on your method if you have time. Learning the different ways to do things in ICE could come in handy in the future.     From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Matt Lind Sent: Friday, March 29, 2013 7:10 PM To: softimage@listproc.autodesk.com Subject: RE: set raycast direction with a Null?   All you need to do is pluck an axis out of the transform and use that as your direction vector.  You can do that with the matrix to 3D vector converters.    Matt       From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Sam Sent: Friday, March 29, 2013 6:55 PM To: softimage@listproc.autodesk.com Subject: set raycast direction with a Null?   I have a null I’m using to raycast onto a mesh and it working pretty good, but I want to be able to adjust the direction by rotating the null and I can’t seem to get this to work. There is a direction to rotation node, but there doesn’t seem to be a rotation to direction node. Any help is appreciated.   Peter Agg Sunday, April 07, 2013 6:35 AM Just to expand on what Matt said: If you want a direction with any object in ICE, the easiest way is to get it's global kinematics and pipe that into a 'Matrix 4x4 to Vector 3D' node. The node will spit out 4 vectors - ignore the one labeled 'translation' and pick one of the 3 depending on what axis you want to get the direction of. The order is XYZ as you'd expect. You can then pipe out your chosen axis into the direction of the raycast node and the translation into the position. You can then use that null as a complete raycast controller. Sam Sunday, April 07, 2013 2:54 AM I couldn’t figure this one out. Andy’s compound used a Select Case and a rotate vector to convert the orientation of the null to a vector (Thanks Andy!). I was wondering if you could elaborate on your method if you have time. Learning the different ways to do things in ICE could come in handy in the future.     From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Matt Lind Sent: Friday, March 29, 2013 7:10 PM To: softimage@listproc.autodesk.com Subject: RE: set raycast direction with a Null?   All you need to do is pluck an axis out of the transform and use that as your direction vector.  You can do that with the matrix to 3D vector converters.    Matt       From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Sam Sent: Friday, March 29, 2013 6:55 PM To: softimage@listproc.autodesk.com Subject: set raycast direction with a Null?   I have a null I’m using to raycast onto a mesh and it working pretty good, but I want to be able to adjust the direction by rotating the null and I can’t seem to get this to work. There is a direction to rotation node, but there doesn’t seem to be a rotation to direction node. Any help is appreciated. Matt Lind Friday, March 29, 2013 10:10 PM All you need to do is pluck an axis out of the transform and use that as your direction vector.  You can do that with the matrix to 3D vector converters.    Matt       From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Sam Sent: Friday, March 29, 2013 6:55 PM To: softimage@listproc.autodesk.com Subject: set raycast direction with a Null?   I have a null I’m using to raycast onto a mesh and it working pretty good, but I want to be able to adjust the direction by rotating the null and I can’t seem to get this to work. There is a direction to rotation node, but there doesn’t seem to be a rotation to direction node. Any help is appreciated.