diff options
Diffstat (limited to 'modules/opensimplex')
| -rw-r--r-- | modules/opensimplex/doc_classes/OpenSimplexNoise.xml | 3 | ||||
| -rw-r--r-- | modules/opensimplex/open_simplex_noise.cpp | 9 | ||||
| -rw-r--r-- | modules/opensimplex/open_simplex_noise.h | 7 |
3 files changed, 14 insertions, 5 deletions
diff --git a/modules/opensimplex/doc_classes/OpenSimplexNoise.xml b/modules/opensimplex/doc_classes/OpenSimplexNoise.xml index f4f54901fb..f500925f75 100644 --- a/modules/opensimplex/doc_classes/OpenSimplexNoise.xml +++ b/modules/opensimplex/doc_classes/OpenSimplexNoise.xml @@ -117,7 +117,8 @@ Difference in period between [member octaves]. </member> <member name="octaves" type="int" setter="set_octaves" getter="get_octaves" default="3"> - Number of OpenSimplex noise layers that are sampled to get the fractal noise. + Number of OpenSimplex noise layers that are sampled to get the fractal noise. Higher values result in more detailed noise but take more time to generate. + [b]Note:[/b] The maximum allowed value is 9. </member> <member name="period" type="float" setter="set_period" getter="get_period" default="64.0"> Period of the base octave. A lower period results in a higher-frequency noise (more value changes across the same distance). diff --git a/modules/opensimplex/open_simplex_noise.cpp b/modules/opensimplex/open_simplex_noise.cpp index c99588aefa..bd187e6b5b 100644 --- a/modules/opensimplex/open_simplex_noise.cpp +++ b/modules/opensimplex/open_simplex_noise.cpp @@ -47,7 +47,7 @@ OpenSimplexNoise::~OpenSimplexNoise() { } void OpenSimplexNoise::_init_seeds() { - for (int i = 0; i < 6; ++i) { + for (int i = 0; i < MAX_OCTAVES; ++i) { open_simplex_noise(seed + i * 2, &(contexts[i])); } } @@ -71,7 +71,10 @@ int OpenSimplexNoise::get_seed() { void OpenSimplexNoise::set_octaves(int p_octaves) { if (p_octaves == octaves) return; - octaves = CLAMP(p_octaves, 1, 6); + + ERR_FAIL_COND_MSG(p_octaves > MAX_OCTAVES, vformat("The number of OpenSimplexNoise octaves is limited to %d; ignoring the new value.", MAX_OCTAVES)); + + octaves = CLAMP(p_octaves, 1, MAX_OCTAVES); emit_changed(); } @@ -182,7 +185,7 @@ void OpenSimplexNoise::_bind_methods() { ClassDB::bind_method(D_METHOD("get_noise_3dv", "pos"), &OpenSimplexNoise::get_noise_3dv); ADD_PROPERTY(PropertyInfo(Variant::INT, "seed"), "set_seed", "get_seed"); - ADD_PROPERTY(PropertyInfo(Variant::INT, "octaves", PROPERTY_HINT_RANGE, "1,6,1"), "set_octaves", "get_octaves"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "octaves", PROPERTY_HINT_RANGE, vformat("1,%d,1", MAX_OCTAVES)), "set_octaves", "get_octaves"); ADD_PROPERTY(PropertyInfo(Variant::REAL, "period", PROPERTY_HINT_RANGE, "0.1,256.0,0.1"), "set_period", "get_period"); ADD_PROPERTY(PropertyInfo(Variant::REAL, "persistence", PROPERTY_HINT_RANGE, "0.0,1.0,0.001"), "set_persistence", "get_persistence"); ADD_PROPERTY(PropertyInfo(Variant::REAL, "lacunarity", PROPERTY_HINT_RANGE, "0.1,4.0,0.01"), "set_lacunarity", "get_lacunarity"); diff --git a/modules/opensimplex/open_simplex_noise.h b/modules/opensimplex/open_simplex_noise.h index 89b12253b9..dce62bc1f9 100644 --- a/modules/opensimplex/open_simplex_noise.h +++ b/modules/opensimplex/open_simplex_noise.h @@ -37,11 +37,16 @@ #include "thirdparty/misc/open-simplex-noise.h" +// The maximum number of octaves allowed. Note that these are statically allocated. +// Higher values become exponentially slower, so this shouldn't be set too high +// to avoid freezing the editor for long periods of time. +#define MAX_OCTAVES 9 + class OpenSimplexNoise : public Resource { GDCLASS(OpenSimplexNoise, Resource); OBJ_SAVE_TYPE(OpenSimplexNoise); - osn_context contexts[6]; + osn_context contexts[MAX_OCTAVES]; int seed; float persistence; // Controls details, value in [0,1]. Higher increases grain, lower increases smoothness. |