Forum: Poser - OFFICIAL


Subject: What am I doing wrong?

xpdev opened this issue on Jan 14, 2014 · 22 posts


Keith posted Thu, 16 January 2014 at 12:42 AM

Quote - But I would like to add that our Sun is not a blue-white star. Our Sun's light is slightly yellow. Clouds in the atmopshere can make it a whiter light when it's overcast and you're getting more diffuse light, but I think with bright sunlight like you're trying for could use a tiny bit of yellow in it.

You have it backwards. The sun's light is basically almost pure white (as photos showing the sun taken in space clearly demonstrate). It appears slightly yellowish because blue and violet is scattered by the atmosphere, making the light that reaches the ground lacking at that end of the spectrum, however you then have the light that's been scattered mixing back in so you're pretty much back to white.

The sun's visible output, when you measure it, is actually strongest in green.

Any photos that show a colour other than white (and doesn't involve scattering due to atmosphere) has either been altered or wasn't taken properly.

For the more scientifically-inclined, the sun is essentially a black-body radiator: the temperature of the emitter determines the colour of light you see. At 1000K, it will be red, at 10,000 kelvin blue-white. The color temperature of sunlight just above the  surface is 5900K, which is basically white.