mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-24 19:56:06 +00:00
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
#include "shaders_common.h"
|
|
|
|
static const char *stock_vertex_xmb_ribbon_modern = GLSL(
|
|
in vec3 VertexCoord;
|
|
uniform float time;
|
|
out vec3 fragVertexEc;
|
|
|
|
float iqhash( float n )
|
|
{
|
|
return fract(sin(n)*43758.5453);
|
|
}
|
|
|
|
float noise( vec3 x )
|
|
{
|
|
vec3 p = floor(x);
|
|
vec3 f = fract(x);
|
|
f = f*f*(3.0-2.0*f);
|
|
float n = p.x + p.y*57.0 + 113.0*p.z;
|
|
return mix(mix(mix( iqhash(n+0.0 ), iqhash(n+1.0 ),f.x),
|
|
mix( iqhash(n+57.0 ), iqhash(n+58.0 ),f.x),f.y),
|
|
mix(mix( iqhash(n+113.0), iqhash(n+114.0),f.x),
|
|
mix( iqhash(n+170.0), iqhash(n+171.0),f.x),f.y),f.z);
|
|
}
|
|
|
|
float height(vec3 pos )
|
|
{
|
|
const float twoPi = 2.0 * 3.14159;
|
|
float k = twoPi / 20.0;
|
|
float omega = twoPi / 15.0;
|
|
float y = sin( k * pos.x - omega * time );
|
|
y += noise( vec3(0.27) * vec3( 0.4 * pos.x, 3.0, 2.0 * pos.z - 0.5 * time ) );
|
|
return y;
|
|
}
|
|
|
|
void main()
|
|
{
|
|
vec3 pos = VertexCoord;
|
|
pos.y = height( pos );
|
|
gl_Position = vec4(pos, 1.0);
|
|
fragVertexEc =pos;
|
|
}
|
|
);
|