30 lines
663 B
Text
30 lines
663 B
Text
|
!!cvarf r_wateralpha
|
||
|
|
!!permu FOG
|
||
|
|
|
||
|
|
//this is the shader that's responsible for drawing default q1 turbulant water surfaces
|
||
|
|
//this is expected to be moderately fast.
|
||
|
|
|
||
|
|
#include "sys/fog.h"
|
||
|
|
varying vec2 tc;
|
||
|
|
#ifdef VERTEX_SHADER
|
||
|
|
attribute vec2 v_texcoord;
|
||
|
|
void main ()
|
||
|
|
{
|
||
|
|
tc = v_texcoord.st;
|
||
|
|
gl_Position = ftetransform();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#ifdef FRAGMENT_SHADER
|
||
|
|
uniform sampler2D s_t0;
|
||
|
|
uniform float e_time;
|
||
|
|
uniform float cvar_r_wateralpha;
|
||
|
|
void main ()
|
||
|
|
{
|
||
|
|
vec2 ntc;
|
||
|
|
ntc.s = tc.s + sin(tc.t+e_time)*0.125;
|
||
|
|
ntc.t = tc.t + sin(tc.s+e_time)*0.125;
|
||
|
|
vec3 ts = vec3(texture2D(s_t0, ntc));
|
||
|
|
gl_FragColor = fog4(vec4(ts, cvar_r_wateralpha));
|
||
|
|
}
|
||
|
|
#endif
|