Comments on: Red Screen Filter http://www.gamerendering.com/2009/01/14/red-screen-filter/ Thu, 29 Jul 2010 23:27:20 +0000 http://wordpress.org/?v=2.8.5 hourly 1 By: admin http://www.gamerendering.com/2009/01/14/red-screen-filter/comment-page-1/#comment-3039 admin Wed, 28 Oct 2009 07:35:59 +0000 http://www.gamerendering.com/?p=563#comment-3039 Okey, done! :) Okey, done! :)

]]> By: Anonymous Coward http://www.gamerendering.com/2009/01/14/red-screen-filter/comment-page-1/#comment-3030 Anonymous Coward Mon, 26 Oct 2009 21:09:38 +0000 http://www.gamerendering.com/?p=563#comment-3030 There's a *much* easier way to get this effect: turn on alpha blending and draw a semi-transparent red quad over the whole screen! ;) There’s a *much* easier way to get this effect: turn on alpha blending and draw a semi-transparent red quad over the whole screen! ;)

]]> By: Chris http://www.gamerendering.com/2009/01/14/red-screen-filter/comment-page-1/#comment-2567 Chris Thu, 13 Aug 2009 07:46:14 +0000 http://www.gamerendering.com/?p=563#comment-2567 Hello, you should be able to simplify to just: uniform sampler2D screenRT; void main( void ) { // make the screen red, (but works fine for other channels too, of course) gl_FragColor.r = dot(texture2D(screenRT, gl_TexCoord[0].st).xyz,vec3(0.3, 0.59, 0.11)); } I did for use in my project at least. I've noticed this in a couple of your examples. Hello, you should be able to simplify to just:

uniform sampler2D screenRT;

void main( void )
{
// make the screen red, (but works fine for other channels too, of course)
gl_FragColor.r = dot(texture2D(screenRT, gl_TexCoord[0].st).xyz,vec3(0.3, 0.59, 0.11));
}

I did for use in my project at least. I’ve noticed this in a couple of your examples.

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