diff options
Diffstat (limited to 'rorschach.cginc')
| -rw-r--r-- | rorschach.cginc | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/rorschach.cginc b/rorschach.cginc index bfa550d..3c27494 100644 --- a/rorschach.cginc +++ b/rorschach.cginc @@ -14,10 +14,16 @@ struct RorschachPBR { float map_sdf(float3 p, float2 e, float3 period) { - float r = 1 * min(period.x, min(period.y, period.z)); - float st = sin(_Time[1] * e.y * e.y + e.x * 3.14159265 * 2); + float r = _Rorschach_Radius * min(period.x, min(period.y, period.z)); + float st = sin(_Time[1] * _Rorschach_Speed * e.y * e.y + e.x * 3.14159265 * 2); r *= st; - return distance_from_sphere(p, r); + float3 o = float3( + (e.x - 0.5) * period.x, + (e.y - 0.5) * period.y, + 0); + //o *= _SinTime[1]; + o *= _Rorschach_Center_Randomization; + return distance_from_sphere(p + o, r); } float map_dr( @@ -74,6 +80,19 @@ RorschachPBR get_rorschach(v2f i) d *= 3; d = saturate(d); +#if defined(_RORSCHACH_MASK) + float mask = _Rorschach_Mask.SampleLevel(linear_repeat_s, i.uv0.xy, /*lod=*/0); + mask = _Rorschach_Mask_Invert ? 1 - mask : mask; + float mask_e = 0.1; + // map mask onto [mask_e, 1 - mask_e] + mask = clamp(mask, mask_e, 1.0 - mask_e); + // map mask onto [0, 1 - 2 * mask_e] + mask -= mask_e; + // map mask onto [0, 1] + mask /= (1 - 2 * mask_e); + d *= mask; +#endif + result.albedo.rgb = d; return result; |