stk-code_catmod/data/shaders/bubble.vert
vincentlj 9d7ab41c11 OGL32CTX: Replace ftransform by gl_ModelViewProjectionMatrix * gl_Vertex.
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14979 178a84e3-b1eb-0310-8ba1-8eac791a3b58
2014-01-09 16:09:27 +00:00

33 lines
1.3 KiB
GLSL

// SuperTuxKart - a fun racing game with go-kart
// Copyright (C) 2013 the SuperTuxKart team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 3
// of the License, or (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// Creates a bubble (wave) effect by distorting the texture depending on time
#version 130
uniform float time;
out vec2 uv;
void main()
{
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
float delta_x = cos(time*3.0) * sin( 4.0 * gl_TexCoord[0].st.s * 6.28318531 );
float delta_y = cos(time*2.0) * sin( 3.0 * gl_TexCoord[0].st.t * 6.28318531 );
uv = (gl_TextureMatrix[0] * gl_MultiTexCoord0).st + vec2(0.02*delta_x, 0.02*delta_y);
}