[Bf-committers] [Bf-blender-cvs] SVN commit: /data/svn/bf-blender [17454] branches/sim_physics/source/ blender/render/intern/source/volumetric.c: Volume rendering:

[joe]

Eh deriving shi->view from shi->co. . .well the render scene's pre-rotated,
so I imagine it's pretty easy, just look up the function that calculates
shi->view in the first place.

On Thu, Nov 13, 2008 at 11:01 PM, Matt Ebb <matt at mke3.net> wrote:

> Revision: 17454
>
> http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=17454
> Author:   broken
> Date:     2008-11-14 07:01:06 +0100 (Fri, 14 Nov 2008)
>
> Log Message:
> -----------
> Volume rendering:
>
> * Use a slightly better (but still not exact) approximation for the view
> vector when pre-shading the light cache. This still doesn't give exactly
> the
> same results as non-light-cache shading, but it's better. Will investigate
> getting a better view vector when there's more time - or if anyone has a
> simple formula to derive shi->view from shi->co that would be great to
> hear about too :)
>
> Modified Paths:
> --------------
>    branches/sim_physics/source/blender/render/intern/source/volumetric.c
>
> Modified:
> branches/sim_physics/source/blender/render/intern/source/volumetric.c
> ===================================================================
> --- branches/sim_physics/source/blender/render/intern/source/volumetric.c
>     2008-11-14 04:07:47 UTC (rev 17453)
> +++ branches/sim_physics/source/blender/render/intern/source/volumetric.c
>     2008-11-14 06:01:06 UTC (rev 17454)
> @@ -984,7 +984,7 @@
>
>                        for (z=0; z < res; z++) {
>                                co[2] = bbmin[2] + (voxel[2] * z);
> -
> +
>                                time= PIL_check_seconds_timer();
>                                i++;
>
> @@ -1012,6 +1012,9 @@
>                                        obi->volume_precache[2*res_3 +
> x*res_2 + y*res + z] = -1.0f;
>                                        continue;
>                                }
> +
> +                               VECCOPY(shi.view, co);
> +                               Normalize(shi.view);
>                                density = vol_get_density(&shi, co);
>                                vol_get_scattering(&shi, scatter_col, co,
> stepsize, density);
>
>
>
> _______________________________________________
> Bf-blender-cvs mailing list
> Bf-blender-cvs at blender.org
> http://lists.blender.org/mailman/listinfo/bf-blender-cvs
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.blender.org/pipermail/bf-committers/attachments/20081114/7eb5c6cd/attachment.htm