diff --git a/src/rmodels.c b/src/rmodels.c index 8f347ace0..c159350c7 100644 --- a/src/rmodels.c +++ b/src/rmodels.c @@ -4923,6 +4923,56 @@ static Model LoadGLTF(const char *fileName) } } +/* + // TODO: Load glTF meshes animation data + // REF: https://www.khronos.org/registry/glTF/specs/2.0/glTF-2.0.html#skins + // REF: https://www.khronos.org/registry/glTF/specs/2.0/glTF-2.0.html#skinned-mesh-attributes + //---------------------------------------------------------------------------------------------------- + for (unsigned int i = 0, meshIndex = 0; i < data->meshes_count; i++) + { + for (unsigned int p = 0; p < data->meshes[i].primitives_count; p++) + { + // NOTE: We only support primitives defined by triangles + if (data->meshes[i].primitives[p].type != cgltf_primitive_type_triangles) continue; + + for (unsigned int j = 0; j < data->meshes[i].primitives[p].attributes_count; j++) + { + // NOTE: JOINTS_1 + WEIGHT_1 will be used for +4 joints influencing a vertex -> Not supported by raylib + + if (data->meshes[i].primitives[p].attributes[j].type == cgltf_attribute_type_joints) // JOINTS_n (vec4: 4 bones max per vertex / u8, u16) + { + cgltf_accessor *attribute = data->meshes[i].primitives[p].attributes[j].data; + + if ((attribute->component_type == cgltf_component_type_r_8u) && (attribute->type == cgltf_type_vec4)) + { + // Init raylib mesh bone ids to copy glTF attribute data + model.meshes[meshIndex].boneIds = RL_CALLOC(model.meshes[meshIndex].vertexCount*4, sizeof(unsigned char)); + + // Load 4 components of unsigned char data type into mesh.boneIds + LOAD_ATTRIBUTE(attribute, 4, unsigned char, model.meshes[meshIndex].boneIds) + } + else TRACELOG(LOG_WARNING, "MODEL: [%s] Joint attribute data format not supported, use vec4 u8", fileName); + } + else if (data->meshes[i].primitives[p].attributes[j].type == cgltf_attribute_type_weights) // WEIGHTS_n (vec4 / u8, u16, f32) + { + cgltf_accessor *attribute = data->meshes[i].primitives[p].attributes[j].data; + + if ((attribute->component_type == cgltf_component_type_r_32f) && (attribute->type == cgltf_type_vec4)) + { + // Init raylib mesh bone weight to copy glTF attribute data + model.meshes[meshIndex].boneWeights = RL_CALLOC(model.meshes[meshIndex].vertexCount*4, sizeof(float)); + + // Load 4 components of float data type into mesh.boneWeights + LOAD_ATTRIBUTE(attribute, 4, float, model.meshes[meshIndex].boneWeights) + } + else TRACELOG(LOG_WARNING, "MODEL: [%s] Joint weight attribute data format not supported, use vec4 float", fileName); + } + } + + meshIndex++; // Move to next mesh + } + } +*/ // Free all cgltf loaded data cgltf_free(data); }