ps_2_0
// generate circles
// ~1/radius in c0.x
// origin 1 in c1.xy
// origin 2 in c1.zw
// tex0
dcl t0
dcl_2d s0
dcl_2d s1
def c2,0.5,1.1,1,0
def c3,0.9,0,0,0
sub r0,t0,c1
mul r0,r0,r0
add r0.x,r0.x,r0.y
rsq r0.y,r0.x
rcp r0.x,r0.y
mul r0.x,r0.x,c0.x
frc r0.y,r0.x
sub r0.y,r0.y,c2.x
cmp r1.x,r0.y,c2.z,c2.w
//
sub r0.x,t0.x,c1.z
sub r0.y,t0.y,c1.w
mul r0,r0,r0
add r0.x,r0.x,r0.y
rsq r0.y,r0.x
rcp r0.x,r0.y
mul r0.x,r0.x,c0.x
frc r0.y,r0.x
sub r0.y,r0.y,c2.x
cmp r1.y,r0.y,c2.z,c2.w
//
add r1.x,r1.x,r1.y
sub r1.y,r1.x,c2.y
cmp r0,r1.y,c2.w,c2.z
sub r1.y,r1.x,c3.x
cmp r0,r1.y,r0.x,c2.w
texld r2,t0,s0
texld r3,t0,s1
sub r0.x,r0.x,c2.x
cmp r0,r0.x,r3,r2

mov oC0,r0
