Re: emitt grid on surface

2014-03-19 Thread Simon van de Lagemaat
Maybe I need to break this problem down a little.

1.  I need to know how to build a 2d particle grid in the first place... if
there's a simple tut out there I'd love to do it.

2.  Determine how to center and then align the grid to a surface .  I'm
already doing this with a raycast method for the Y alignment but I'm having
to manually center and size the 3d grid to the surfaces bounding box using
it's own built in controls... it's a pita when you have a lot of fields.

I'm a smart guy, I should be able to do this if I can just get access to
the proper tutorials or advice :-)  It's fun regardless, I enjoy putting
all the pieces together as I build them.

FYI, basically I'm making corn rows in a field and I'm being passed geo for
each field.  I need to emit and rotate a grid on it as a base for
instancing.  Everything else I can do easily, i.e. all the usual scattering
stuff, randomization of everything really.


On Tue, Mar 18, 2014 at 3:51 PM, Matt Morris matt...@gmail.com wrote:

 Should be able to get locations on the surface via the raycast and create
 the points needed from them, rather than building all of them and deleting
 those not intersecting?




 On 18 March 2014 22:39, Jason S jasonsta...@gmail.com wrote:

  Actually refreshing to see a bit of normal content =)


 On 03/18/14 17:28, Simon van de Lagemaat wrote:

 There's nothing the matter with it.  Right now I'm just aligning the
 points to the surface and deleting the points that are not hitting the
 surface.  In fact it's working a little better than I thought it would.


 On Tue, Mar 18, 2014 at 2:09 PM, olivier jeannel olivier.jean...@noos.fr
  wrote:

 In order to better help (It's so noisy these days) Can you post a screen
 grab of what you want ? What's the matter with deleting particles ?


 Le 18/03/2014 20:06, Simon van de Lagemaat a écrit :

  Hey guys,

 I'm trying to do something simple, just emitting a flat grid on a
 uneven surface that can have it's heading changed.  Currently I'm just
 creating a grid in a point cloud and raycasting it down on to my surface
 but I'm having to kill off the particles outside the surface which is a
 pita.

 Is there a simple way to emit a rotatable grid from the surface
 directly rather than raycasting?  Even being able to kill off the particles
 that aren't raycasting on to the surface would suffice.







 --
 www.matinai.com



Re: emitt grid on surface

2014-03-18 Thread olivier jeannel
In order to better help (It's so noisy these days) Can you post a screen 
grab of what you want ? What's the matter with deleting particles ?



Le 18/03/2014 20:06, Simon van de Lagemaat a écrit :

Hey guys,

I'm trying to do something simple, just emitting a flat grid on a 
uneven surface that can have it's heading changed.  Currently I'm just 
creating a grid in a point cloud and raycasting it down on to my 
surface but I'm having to kill off the particles outside the surface 
which is a pita.


Is there a simple way to emit a rotatable grid from the surface 
directly rather than raycasting?  Even being able to kill off the 
particles that aren't raycasting on to the surface would suffice.




Re: emitt grid on surface

2014-03-18 Thread Simon van de Lagemaat
There's nothing the matter with it.  Right now I'm just aligning the points
to the surface and deleting the points that are not hitting the surface.
 In fact it's working a little better than I thought it would.


On Tue, Mar 18, 2014 at 2:09 PM, olivier jeannel olivier.jean...@noos.frwrote:

 In order to better help (It's so noisy these days) Can you post a screen
 grab of what you want ? What's the matter with deleting particles ?


 Le 18/03/2014 20:06, Simon van de Lagemaat a écrit :

  Hey guys,

 I'm trying to do something simple, just emitting a flat grid on a uneven
 surface that can have it's heading changed.  Currently I'm just creating a
 grid in a point cloud and raycasting it down on to my surface but I'm
 having to kill off the particles outside the surface which is a pita.

 Is there a simple way to emit a rotatable grid from the surface directly
 rather than raycasting?  Even being able to kill off the particles that
 aren't raycasting on to the surface would suffice.





Re: emitt grid on surface

2014-03-18 Thread Matt Morris
Should be able to get locations on the surface via the raycast and create
the points needed from them, rather than building all of them and deleting
those not intersecting?




On 18 March 2014 22:39, Jason S jasonsta...@gmail.com wrote:

  Actually refreshing to see a bit of normal content =)


 On 03/18/14 17:28, Simon van de Lagemaat wrote:

 There's nothing the matter with it.  Right now I'm just aligning the
 points to the surface and deleting the points that are not hitting the
 surface.  In fact it's working a little better than I thought it would.


 On Tue, Mar 18, 2014 at 2:09 PM, olivier jeannel 
 olivier.jean...@noos.frwrote:

 In order to better help (It's so noisy these days) Can you post a screen
 grab of what you want ? What's the matter with deleting particles ?


 Le 18/03/2014 20:06, Simon van de Lagemaat a écrit :

  Hey guys,

 I'm trying to do something simple, just emitting a flat grid on a uneven
 surface that can have it's heading changed.  Currently I'm just creating a
 grid in a point cloud and raycasting it down on to my surface but I'm
 having to kill off the particles outside the surface which is a pita.

 Is there a simple way to emit a rotatable grid from the surface directly
 rather than raycasting?  Even being able to kill off the particles that
 aren't raycasting on to the surface would suffice.







-- 
www.matinai.com