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/**
* @file class1\lighting\lightFullbrightAlphaMaskF.glsl
*
* $LicenseInfo:firstyear=2011&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2011, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifdef DEFINE_GL_FRAGCOLOR
out vec4 frag_color;
#else
#define frag_color gl_FragColor
#endif
uniform float minimum_alpha;
uniform float texture_gamma; // either 1.0 or 2.2; see: "::TEXTURE_GAMMA"
// render_hud_attachments() -> HUD objects set LLShaderMgr::NO_ATMO; used in LLDrawPoolAlpha::beginRenderPass()
uniform int no_atmo;
vec3 fullbrightAtmosTransport(vec3 light);
vec3 fullbrightScaleSoftClip(vec3 light);
VARYING vec4 vertex_color;
VARYING vec2 vary_texcoord0;
void fullbright_lighting()
{
vec4 color = diffuseLookup(vary_texcoord0.xy);
if (color.a < minimum_alpha)
{
discard;
}
color.rgb *= vertex_color.rgb;
color.rgb = pow(color.rgb, vec3(texture_gamma));
// SL-9632 HUDs are affected by Atmosphere
if (no_atmo == 0)
{
color.rgb = fullbrightAtmosTransport(color.rgb);
color.rgb = fullbrightScaleSoftClip(color.rgb);
}
//*TODO: Are we missing an inverse pow() here?
// class1\lighting\lightFullbrightF.glsl has:
// color.rgb = pow(color.rgb, vec3(1.0/texture_gamma));
frag_color = color;
}
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