70 lines
1.9 KiB
GLSL
70 lines
1.9 KiB
GLSL
// SuperTuxKart - a fun racing game with go-kart
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// Copyright (C) 2013 the SuperTuxKart team
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 3
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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uniform sampler2D tex;
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uniform sampler2D glow_tex;
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uniform float transparency;
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uniform vec3 sun_pos;
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in vec2 uv_anim;
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in vec2 uv;
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in vec2 uv_cl;
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in vec3 vertex;
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in vec2 uv_fast;
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out vec4 FragColor;
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void main()
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{
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vec2 uv_temp = uv;
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vec3 V = normalize(vertex);
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vec3 L = normalize(vec3(sun_pos));
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vec3 col = texture(tex, vec2((L.y + 1.0) / 2.0, V.y)).xyz;
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float vl = clamp(dot(V, L), 0., 1.);
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float paint = texture(tex, uv_temp * 3).a;
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uv_temp += 20;
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//float paint2 = texture(tex, uv_temp * 5).a;
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float paint2 = texture(tex, uv * 5.).a;
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// Get the general cloud mask
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float hello = texture(glow_tex, (uv_cl + paint2 * 0.07) *2.).g;
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float cld_mask = texture(glow_tex, (uv_anim + hello * 0.007 )).r;
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vec2 fast = vec2(-uv_fast.x, uv_fast.y);// + (hello * 0.007);
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float cld_fast = texture(glow_tex, fast ).r;
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cld_mask = (cld_mask * hello * 0.5);
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cld_fast = (cld_fast * hello );
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col = cld_mask + col*(1. - cld_mask);
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col = cld_fast + col*(1. - cld_fast);
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FragColor = vec4( vec3(col * paint * paint2), 1.0);
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//FragColor = vec4(vec3(ou), 1.0);
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}
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