Alain <kua### [at] videotronca> wrote:

> > My goal is getting luminance of final pixels.I have set the output openexr.I
> > have converted the irradiance to illumiance as the lightsource input,my code is
> > as below:
> >
> > #version 3.7;
> > global_settings{ assumed_gamma 1.0 }
> > #include "spectral.inc"
> > #declare SpectralWavelength =700;
> >
> > camera
> > {
> > angle  7.54371
> > location <camera_x,camera_y,camera_z >
> > look_at <0,0,0>
> > rotate <0,-31,0>
> > right x
> > up y
> > }
> >
> > light_source {<sun_x,sun_y,sun_z>
> >               SpectralEmission(3.99750132) //convert irradince to illuminance as
> > input
> >               }
> >
> > sphere
> >      {
> >        <x1-center_x,y1-center_y,z1-center_z>,
> >        1.55
> >         finish {
> >                   ambient 0
> >                   emission 0
> >                   specular ref
> >                 }
> >        }
> > I have read the openexr resorce code .It says the y channel represents luminance
> > ,how can I set in pov ?Beg a hot!
> >
> >
>
> What does the X and Z channels represent? Hue and saturation?
> If that's the case, it's a hue, luminance, saturation (HLS) colour
> space. The conversion from RGB should be done automaticaly. Thus, you
> have nothing special to do.
>
>
> Alain

You are a hot person,can I consult your email ?I want to send you my image and
beg you have a look.

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