Problems with spotlights

Power Render API Affiliates

0 comments, last by GameDev.net 24 years, 6 months ago

October 12, 1999 10:39 AM

I'm working on the 3dsmax plugin, and
the directional and omni lights works
well but the spotlight don't work.

i see the spolight.c and view strange
options in the

SetLightTarget( ...,6000,... ) why 6000 ?

explain me how it works

i put a plane on 0,0,0 with grid poligons

and i set:

LightPosition ( 0,400,0 )
LightTarget ( 0,0,0 );
Cone( RADIANS(45),RADIANS(90) )
Falloff( 4000 ) for example
strenght etc ... it's ok

and i don't see the effect of a spotlight

target is a direction ?
y ix z ?
x,y,z is multiplied ?

please explain me for finish the light exporting module of the 3dsmax plugin

184

October 12, 1999 10:39 AM

The target is a 3D location the light points at. It is NOT a direction vector.

You will need to swap the y and x values for both spot location and target to match 3D Studio's coordinate system.

The falloff value is the distance the light drops off to no effect. If you don't want it to fall off make this a high value like 100000.

Chris

Author of Power Render (http:/www.powerrender.com)

Reticulating splines