NightVision Tutorial: Difference between revisions

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[[Category:Programming]]
#REDIRECT [[Vision Nocturna]]
[[Category:Tutorials]]
== Adding Nightvision To your Source Single Player Mod ==
Here's something that is part of Nightfall [[nightfall]], and many people have been stumpled on - Night Vision.
 
== Summary ==
 
Before i start, this is only one, and a very early attempt (It works), of one way to get the Night Vision Mode to work with your mod.
 
Before i start, i would like to credit Gnolfo from www.hl2coding.com and [[user:ts2do]]
 
== Seting up the convar, The Meat and The Spuds ==
 
Open the file '''src/cl_dll/view_scene.cpp''', and jump to the end (ctrl+end)
 
<pre>
//nightfall - amckern - amckern@yahoo.com
//NightVision
static void ScreenOver_f( void )
//rename ScreenOver to what ever you wish, maybe cl_nightvis
{
IMaterial *pMaterial = materials->FindMaterial( "HUDoverlays/nightvision", TEXTURE_GROUP_OTHER, true );
//This is the texture we are going to use for the 'effect' - never use an ext on material files
 
{
static bool bDisplayed = false;
if( bDisplayed )
{
// turn it off
view->SetScreenOverlayMaterial( NULL );
engine->ClientCmd( "mat_fullbright 0\n" );//turn full bright off again
CLocalPlayerFilter filter;
C_BaseEntity::EmitSound( filter, 0, "Nightfall.NightVisOff" );
//play the off sound
}
else
{
// turn it on
view->SetScreenOverlayMaterial( pMaterial );
//this is the HUDoverlays/nightvision texture we made a pointer to above
engine->ClientCmd( "mat_fullbright 1\n" );//light up the world
CLocalPlayerFilter filter;
C_BaseEntity::EmitSound( filter, 0, "Nightfall.NightVisOn" );
//On we go - play a sound to let the player know that the NV is on
}
bDisplayed = !bDisplayed;
}
}
 
static ConCommand r_screenover( "r_screenover", ScreenOver_f );
</pre>
 
So what we have done here is set a bool cvar (on/off) that either enables, or disables the night vision effect. if you read the comments, you will under stand what each part is doing.
 
<pre>Nightfall.NightVisOn</pre> is

Latest revision as of 09:42, 6 March 2010

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