diff options
Diffstat (limited to 'intern/cycles/kernel/osl/shaders/node_hash.h')
-rw-r--r-- | intern/cycles/kernel/osl/shaders/node_hash.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/shaders/node_hash.h b/intern/cycles/kernel/osl/shaders/node_hash.h new file mode 100644 index 00000000000..b42e42ff910 --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_hash.h @@ -0,0 +1,81 @@ +#include "stdcycles.h" +#include "vector2.h" +#include "vector4.h" + +#define vector3 point + +/* **** Hash a float or vector[234] into a float [0, 1] **** */ + +float hash_float_to_float(float k) +{ + return hashnoise(k); +} + +float hash_vector2_to_float(vector2 k) +{ + return hashnoise(k.x, k.y); +} + +float hash_vector3_to_float(vector3 k) +{ + return hashnoise(k); +} + +float hash_vector4_to_float(vector4 k) +{ + return hashnoise(vector3(k.x, k.y, k.z), k.w); +} + +/* **** Hash a vector[234] into a vector[234] [0, 1] **** */ + +vector2 hash_vector2_to_vector2(vector2 k) +{ + return vector2(hash_vector2_to_float(k), hash_vector3_to_float(vector3(k.x, k.y, 1.0))); +} + +vector3 hash_vector3_to_vector3(vector3 k) +{ + return vector3(hash_vector3_to_float(k), + hash_vector4_to_float(vector4(k[0], k[1], k[2], 1.0)), + hash_vector4_to_float(vector4(k[0], k[1], k[2], 2.0))); +} + +vector4 hash_vector4_to_vector4(vector4 k) +{ + return vector4(hash_vector4_to_float(k), + hash_vector4_to_float(vector4(k.w, k.x, k.y, k.z)), + hash_vector4_to_float(vector4(k.z, k.w, k.x, k.y)), + hash_vector4_to_float(vector4(k.y, k.z, k.w, k.x))); +} + +/* **** Hash a float or a vec[234] into a color [0, 1] **** */ + +color hash_float_to_color(float k) +{ + return color(hash_float_to_float(k), + hash_vector2_to_float(vector2(k, 1.0)), + hash_vector2_to_float(vector2(k, 2.0))); +} + +color hash_vector2_to_color(vector2 k) +{ + return color(hash_vector2_to_float(k), + hash_vector3_to_float(vector3(k.x, k.y, 1.0)), + hash_vector3_to_float(vector3(k.x, k.y, 2.0))); +} + +color hash_vector3_to_color(vector3 k) +{ + return color(hash_vector3_to_float(k), + hash_vector4_to_float(vector4(k[0], k[1], k[2], 1.0)), + hash_vector4_to_float(vector4(k[0], k[1], k[2], 2.0))); +} + +color hash_vector4_to_color(vector4 k) +{ + return color(hash_vector4_to_float(k), + hash_vector4_to_float(vector4(k.z, k.x, k.w, k.y)), + hash_vector4_to_float(vector4(k.w, k.z, k.y, k.x))); +} + +#undef vector3 |