POV-Ray : Newsgroups : povray.advanced-users : mesh_camera : Re: mesh_camera Server Time
10 Oct 2025 00:38:42 EDT (-0400)
  Re: mesh_camera  
From: Josh English
Date: 6 Oct 2025 11:19:41
Message: <68e3de0d@news.povray.org>
On 10/6/2025 12:01 AM, Paul Bourke wrote:
> I have the need for a custom camera, specifically an omni directional
> stereoscopic panorama (cylindrical, not equirectangular). I've done this in the
> long distant past by modifying the source and building my own version.
> 
> I thought I would try the mesh_camera but it seems not as useful as I imagined.
> I can readily create the meshes and am getting the right results but ...
> 
> 1. Loading the mesh takes a very long time for high resolution images. The LED
> cylinder I'm creating for is 12816x2048 pixels, even for 1/4 resolution tests
> the mesh loading takes longer than the rendering and it's probably 16x longer
> for the full resolution.
> 
> 2. Is there there still no efficient/clean way to do antialising.
> 
> Am I missing something?
> 
> 
In my Mesh Camera experiments I stole some code from Jaime Vives 
Piqueres on how to save the meshes to files once I had generated them so 
subsequent renders went faster.

The only way I've found to anti-alias is to use multiple copies of the 
mesh moved along the view plane. This also allowed for focal blur and 
motion blur. Since meshes are quick to copy this doesn't add a lot of 
overload.

I've started to experiment with the user-defined camera but I'm not 
getting results yet. The user-defined camera supposedly supports 
anti-aliasing.

Josh


Post a reply to this message


Attachments:
Download 'meshcam07c.png' (211 KB)

Preview of image 'meshcam07c.png'
meshcam07c.png


 

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.