zerocount( )
a1(x1,y1,z1 )
rem( )
( ) 
( );
[ ]
//---------------------
/*  */
;=============================================
#define PI 3.14159265359
#define 
struct  {  };
#include ""
i.normal
1-
0.8-
0.5-
*0.5
.xxx
.yyy
.zzz
.www
.xyz
.x
.y
.z
.w
float 
float2( , )
float2  = float2(1 ,1 );
float3( , , )
float3  = float3(1 ,1 ,1 );
float4( , , , )
float4  = float4(1 ,1 ,1 ,1);
int 
clamp( , , ) 
sqrt 
rsqrt 
normalize 
pow 
lerp( , , ) 
max 
min 
[branch] if ( > ) { } else { } 
dot 
cross 
sin 
cos
return  
return float4(,,,1); 
return float4(.x,.y,.z,1);
return float4(1- .x,1- .y,1- .z,1);
