Updated cgltf.

This commit is contained in:
Бранимир Караџић 2024-05-27 19:52:14 -07:00
parent c08fa3da56
commit 887dbc8ffe
2 changed files with 62 additions and 3 deletions

View File

@ -1,7 +1,7 @@
/**
* cgltf - a single-file glTF 2.0 parser written in C99.
*
* Version: 1.13
* Version: 1.14
*
* Website: https://github.com/jkuhlmann/cgltf
*
@ -505,6 +505,11 @@ typedef struct cgltf_anisotropy
cgltf_texture_view anisotropy_texture;
} cgltf_anisotropy;
typedef struct cgltf_dispersion
{
cgltf_float dispersion;
} cgltf_dispersion;
typedef struct cgltf_material
{
char* name;
@ -519,6 +524,7 @@ typedef struct cgltf_material
cgltf_bool has_emissive_strength;
cgltf_bool has_iridescence;
cgltf_bool has_anisotropy;
cgltf_bool has_dispersion;
cgltf_pbr_metallic_roughness pbr_metallic_roughness;
cgltf_pbr_specular_glossiness pbr_specular_glossiness;
cgltf_clearcoat clearcoat;
@ -530,6 +536,7 @@ typedef struct cgltf_material
cgltf_emissive_strength emissive_strength;
cgltf_iridescence iridescence;
cgltf_anisotropy anisotropy;
cgltf_dispersion dispersion;
cgltf_texture_view normal_texture;
cgltf_texture_view occlusion_texture;
cgltf_texture_view emissive_texture;
@ -4297,6 +4304,37 @@ static int cgltf_parse_json_anisotropy(cgltf_options* options, jsmntok_t const*
return i;
}
static int cgltf_parse_json_dispersion(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_dispersion* out_dispersion)
{
CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
int size = tokens[i].size;
++i;
for (int j = 0; j < size; ++j)
{
CGLTF_CHECK_KEY(tokens[i]);
if (cgltf_json_strcmp(tokens + i, json_chunk, "dispersion") == 0)
{
++i;
out_dispersion->dispersion = cgltf_json_to_float(tokens + i, json_chunk);
++i;
}
else
{
i = cgltf_skip_json(tokens, i + 1);
}
if (i < 0)
{
return i;
}
}
return i;
}
static int cgltf_parse_json_image(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_image* out_image)
{
CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
@ -4690,6 +4728,11 @@ static int cgltf_parse_json_material(cgltf_options* options, jsmntok_t const* to
out_material->has_anisotropy = 1;
i = cgltf_parse_json_anisotropy(options, tokens, i + 1, json_chunk, &out_material->anisotropy);
}
else if (cgltf_json_strcmp(tokens + i, json_chunk, "KHR_materials_dispersion") == 0)
{
out_material->has_dispersion = 1;
i = cgltf_parse_json_dispersion(tokens, i + 1, json_chunk, &out_material->dispersion);
}
else
{
i = cgltf_parse_json_unprocessed_extension(options, tokens, i, json_chunk, &(out_material->extensions[out_material->extensions_count++]));

View File

@ -1,7 +1,7 @@
/**
* cgltf_write - a single-file glTF 2.0 writer written in C99.
*
* Version: 1.13
* Version: 1.14
*
* Website: https://github.com/jkuhlmann/cgltf
*
@ -86,6 +86,7 @@ cgltf_size cgltf_write(const cgltf_options* options, char* buffer, cgltf_size si
#define CGLTF_EXTENSION_FLAG_MESH_GPU_INSTANCING (1 << 14)
#define CGLTF_EXTENSION_FLAG_MATERIALS_IRIDESCENCE (1 << 15)
#define CGLTF_EXTENSION_FLAG_MATERIALS_ANISOTROPY (1 << 16)
#define CGLTF_EXTENSION_FLAG_MATERIALS_DISPERSION (1 << 17)
typedef struct {
char* buffer;
@ -659,6 +660,11 @@ static void cgltf_write_material(cgltf_write_context* context, const cgltf_mater
context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_ANISOTROPY;
}
if (material->has_dispersion)
{
context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_DISPERSION;
}
if (material->has_pbr_metallic_roughness)
{
const cgltf_pbr_metallic_roughness* params = &material->pbr_metallic_roughness;
@ -674,7 +680,7 @@ static void cgltf_write_material(cgltf_write_context* context, const cgltf_mater
cgltf_write_line(context, "}");
}
if (material->unlit || material->has_pbr_specular_glossiness || material->has_clearcoat || material->has_ior || material->has_specular || material->has_transmission || material->has_sheen || material->has_volume || material->has_emissive_strength || material->has_iridescence || material->has_anisotropy)
if (material->unlit || material->has_pbr_specular_glossiness || material->has_clearcoat || material->has_ior || material->has_specular || material->has_transmission || material->has_sheen || material->has_volume || material->has_emissive_strength || material->has_iridescence || material->has_anisotropy || material->has_dispersion)
{
cgltf_write_line(context, "\"extensions\": {");
if (material->has_clearcoat)
@ -794,6 +800,13 @@ static void cgltf_write_material(cgltf_write_context* context, const cgltf_mater
CGLTF_WRITE_TEXTURE_INFO("anisotropyTexture", params->anisotropy_texture);
cgltf_write_line(context, "}");
}
if (material->has_dispersion)
{
cgltf_write_line(context, "\"KHR_materials_dispersion\": {");
const cgltf_dispersion* params = &material->dispersion;
cgltf_write_floatprop(context, "dispersion", params->dispersion, 0.f);
cgltf_write_line(context, "}");
}
cgltf_write_line(context, "}");
}
@ -1279,6 +1292,9 @@ static void cgltf_write_extensions(cgltf_write_context* context, uint32_t extens
if (extension_flags & CGLTF_EXTENSION_FLAG_MESH_GPU_INSTANCING) {
cgltf_write_stritem(context, "EXT_mesh_gpu_instancing");
}
if (extension_flags & CGLTF_EXTENSION_FLAG_MATERIALS_DISPERSION) {
cgltf_write_stritem(context, "KHR_materials_dispersion");
}
}
cgltf_size cgltf_write(const cgltf_options* options, char* buffer, cgltf_size size, const cgltf_data* data)