[Sidefx-houdini-list] visualizing env light hdr

zoran arizanovic zoran.arizanovic at gmail.com
Mon Jul 25 18:12:33 EDT 2011


great help thanks guys :)
zoran

On Mon, Jul 25, 2011 at 10:34 PM, Nick Boughen <
Nick.Boughen at cis-vancouver.com> wrote:

> We made an .otl that does exactly this, since we do this all the time.
>  Only difference is you need the shop network inside the sop.
>
> -----Original Message-----
> From: sidefx-houdini-list-bounces at sidefx.com [mailto:
> sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Alvaro Castaneda
> Sent: Monday, July 25, 2011 1:15 PM
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] visualizing env light hdr
>
> Here's what I do
>
> Create a big sphere for reflection
> add polar uv to that
> add a constant shader with the Hdr in as the color map
> assign that to the sphere
> in the constant shader go to the openGL tab
> break the connection on the OGL Emission attrib
> and set that to black
> that'll bring the image into the sphere
>
> hope that helps :P
>
>
> On Mon, Jul 25, 2011 at 2:03 PM, Jeff Wagner <jeff at sidefx.com> wrote:
>
> > Here's one way.
> >
> > Assuming you already have an Environment Light in your scene set up.
> >
> > Plop down a sphere in the center of your scene.
> > Enable High Quality Light Shading (either from viewport right hand
> toolbar
> > or display options Effects tab).
> >
> > Sampling Angle to 0 on your Environment Light. The only way to enable the
> > parm is to flip the Rendering Mode to Ambient Occlusion, set Sampling
> Angle
> > to 0, then you should see the sphere reflect the environment in the
> > viewport.
> >
> > Set the rendering mode back to whatever it was before you changed it
> > (Direct Lighting is the default).
> > The sampling angle remains at 0.  You aren't wisywig at this point btw.
> >
> >
> > -jeff
> >
> > On 11-07-25 8:47 AM, zoran arizanovic wrote:
> >
> >> hi
> >> what would be the best way to setup a scene so i could see hdr on a env
> >> light
> >> in the viewport
> >> thanks
> >> zoran
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