nuclide/platform/base_glsl.pk3dir/glsl/portal.glsl

37 lines
579 B
GLSL

//======= Copyright (c) 2023 Vera Visions LLC. All rights reserved. =======
//
// Purpose:
//
// Unlit surface.
//==============================================================================
!!ver 110
!!permu FOG
!!samps diffuse
#include "sys/defs.h"
#include "sys/fog.h"
varying vec2 tex_c;
#ifdef VERTEX_SHADER
void main ()
{
tex_c = v_texcoord;
gl_Position = ftetransform();
}
#endif
#ifdef FRAGMENT_SHADER
void main ()
{
vec4 d_f = vec4(1.0, 1.0, 1.0, 1.0) - texture2D( s_diffuse, tex_c );
if (d_f.a > 0.5) {
discard;
}
gl_FragColor = fog4( d_f );
}
#endif