Light not showing up in-game

Been away for a while (working as a mapper on Eternal Silence 2), and
Im running into some lighting problems. As seen in the screen shot in
hammer the light is there, and the cone is casting onto the ground
(custom texture).

(image taken at 1600x1200)

http://img203.imageshack.us/my.php?image=hammershot8rb.jpg

But in game the light isnt being cast onto the ground.

(image taken at 1240x1024)

http://img203.imageshack.us/my.php?image=subsystem300001lj.jpg

The light is there because its being cast on the gravity gun, but it fails to appear on the ground as seen in the in-game shot.

I know the texture is fine because there is a perfect circular light
spot (not the enity) on the same texture else where in the level. So
can someone tell me what im doing wrong?

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Posting And You

Try increasing the cast distance? Or, (this is a shot in the dark) try aligning the light so the cast circle is completley on the upper level (where you're standing) and not shining down into the grate. I've noticed the HL engine(s) don't render light from one source in certain situations (if it moves you'd see the light flicker from the higher to lower surface) ... but, I don't know if that's the case here.

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Blame it on Microsoft, God does.

whats with that constant parameter?

for as long as i have ever played with the lights i have never put anything in that field and all of mine have been working,

also post the compile log

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the only problem with steam updating things every week is it doesent give the developers an incentive to playtest thier work, so we do it for them

Im being really stupid here, it was the model that was blocking the
light - A simple deletion of it solved the problem (the light spot was
"inside" the models bounderies), im gonna havea talk with its creator
to se whats wrong with it. Thanks for the suggestions. And once again
im being really stupid here.

Edit: apparenly this is the case for all modles - dont place any light
entitied in the "box" that the model has, otherwise it will block the
light comming from the source.

Moderators: do what you want with this thread.

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Posting And You

You can keep the model and light where they are if you just tell the model not to cast shadows.

warlord said:
whats with that constant parameter?

DODGY GUESS:
It's a quadratic model, I = ar² + br + c where I is intensity, r is distance from light, and a,b,c are quadratic,linear,constant factors respectively. The constant factor affects what the intensity starts at.

MORE LIKELY CORRECT:
The factors still define a quadratic curve but the curve is used as the shape of the light cone. The constant would affect how far from the light the light cone begins, presumably you could have the light projected from a point a certain distance in front of the light, but I'm still just guessing.

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"If you talk at all during this lesson, you have detention. Do you understand?"

• My yr11 Economics teacher

yes, for a normal light they specify how the lightintensity should decrease over the distance to the origin of the light. ehh..

<span class="mainmenu">

linear means each x units the lightintensity (LI) decreases by the same amount

quadratic means the LI decreases by some quadratic formula (most realistic)

constant means the LI stays the same untill the light hits its max. shining distance</span>

You can keep the model and light where they are if you just tell the model not to cast shadows.

hmmm that seems like a smart choice - ill try it. (Why didn't I think of it! :S)

edit: it woked and I achieved the effect I wanted DG solved this one =P

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Posting And You