Hi,
I have this example. The green line is the laser, projected on the scene. As
you can see, the laser passes through the object. I want the laser bypasses the
object (any object, not only spheres), as the example above. It's like a light
spot
...
Thank you!
Cheers,
Matheus
I did a similar project with adaptive headlamps a couple years ago.
The way I would do this is to think about this as sort of a spot light with a
projector slide. So we can also think about this also a spot light with a
shadow.
So what I did was to setup a "slide" scene in which I would
So, you don't care about the line appearing interacting with the water
column, just with it interacting with the surfaces in the scene?
You could either slap a shader pass on EVERY surface in the scene that the
laser line can fall upon, OR do a second render pass (possibly reading the
Z-buffer)
Something like that:
https://www.researchgate.net/profile/Jan_Albiez/publication/283269557/figure/fig6/AS:668780564865037@1536461120832/Screenshot-of-the-simulation-with-an-active-FlatFish-using-the-laser-line-projectors.ppm
...
Thank you!
Cheers,
Matheus
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On Mon, May 27, 2019 at 3:05 PM Matheus Santos
wrote:
> The laser is a fixed line projection, attached to the camera. It's for
> work.
>
Do you have an example of how you'd want it to look?
The classic scanning beam slice from "Aliens" is a little different, but
I'd expect you'd want to see a
The laser is a fixed line projection, attached to the camera. It's for work.
Chris Hanson wrote:
> Is this like a scanning sweep laser beam?
>
> I'd model it as a triangular frustum with a texture on it generated by a
> shader with some kind of animated fBm (Fractal Brownian Motion) noise.
>
Is this like a scanning sweep laser beam?
I'd model it as a triangular frustum with a texture on it generated by a
shader with some kind of animated fBm (Fractal Brownian Motion) noise.
Is this a work project or school or what?
On Fri, May 24, 2019 at 7:35 PM Matheus Santos
wrote:
> Hi, I
Hi, I need to implement a laser inside an underwater simulation. The simulation
uses the physics from the gazebo and renders the scene with OSG. Now I need to
project a green laser (vertical or horizontal) from the robot, inside the
scene. I have no idea how to do something like that (and have
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