diff options
| -rw-r--r-- | modules/gltf/gltf_document.cpp | 92 | ||||
| -rw-r--r-- | modules/gltf/gltf_state.h | 1 |
2 files changed, 55 insertions, 38 deletions
diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp index babdc9f33b..5f9099cb31 100644 --- a/modules/gltf/gltf_document.cpp +++ b/modules/gltf/gltf_document.cpp @@ -230,15 +230,21 @@ Error GLTFDocument::_serialize(Ref<GLTFState> state, const String &p_path) { } Error GLTFDocument::_serialize_extensions(Ref<GLTFState> state) const { - const String texture_transform = "KHR_texture_transform"; - const String punctual_lights = "KHR_lights_punctual"; Array extensions_used; - extensions_used.push_back(punctual_lights); - extensions_used.push_back(texture_transform); - state->json["extensionsUsed"] = extensions_used; Array extensions_required; - extensions_required.push_back(texture_transform); - state->json["extensionsRequired"] = extensions_required; + if (!state->lights.is_empty()) { + extensions_used.push_back("KHR_lights_punctual"); + } + if (state->use_khr_texture_transform) { + extensions_used.push_back("KHR_texture_transform"); + extensions_required.push_back("KHR_texture_transform"); + } + if (!extensions_used.is_empty()) { + state->json["extensionsUsed"] = extensions_used; + } + if (!extensions_required.is_empty()) { + state->json["extensionsRequired"] = extensions_required; + } return OK; } @@ -3305,7 +3311,11 @@ Error GLTFDocument::_serialize_materials(Ref<GLTFState> state) { } if (gltf_texture_index != -1) { bct["index"] = gltf_texture_index; - bct["extensions"] = _serialize_texture_transform_uv1(material); + Dictionary extensions = _serialize_texture_transform_uv1(material); + if (!extensions.is_empty()) { + bct["extensions"] = extensions; + state->use_khr_texture_transform = true; + } mr["baseColorTexture"] = bct; } } @@ -3436,7 +3446,11 @@ Error GLTFDocument::_serialize_materials(Ref<GLTFState> state) { } if (has_roughness || has_metalness) { mrt["index"] = orm_texture_index; - mrt["extensions"] = _serialize_texture_transform_uv1(material); + Dictionary extensions = _serialize_texture_transform_uv1(material); + if (!extensions.is_empty()) { + mrt["extensions"] = extensions; + state->use_khr_texture_transform = true; + } mr["metallicRoughnessTexture"] = mrt; } } @@ -4525,6 +4539,9 @@ void GLTFDocument::_remove_duplicate_skins(Ref<GLTFState> state) { } Error GLTFDocument::_serialize_lights(Ref<GLTFState> state) { + if (state->lights.is_empty()) { + return OK; + } Array lights; for (GLTFLightIndex i = 0; i < state->lights.size(); i++) { Dictionary d; @@ -4551,10 +4568,6 @@ Error GLTFDocument::_serialize_lights(Ref<GLTFState> state) { lights.push_back(d); } - if (!state->lights.size()) { - return OK; - } - Dictionary extensions; if (state->json.has("extensions")) { extensions = state->json["extensions"]; @@ -6651,45 +6664,48 @@ Error GLTFDocument::_parse(Ref<GLTFState> state, String p_path, Ref<FileAccess> return OK; } -Dictionary GLTFDocument::_serialize_texture_transform_uv2(Ref<BaseMaterial3D> p_material) { - Dictionary extension; - Ref<BaseMaterial3D> mat = p_material; - if (mat.is_valid()) { - Dictionary texture_transform; +Dictionary _serialize_texture_transform_uv(Vector2 p_offset, Vector2 p_scale) { + Dictionary texture_transform; + bool is_offset = p_offset != Vector2(0.0, 0.0); + if (is_offset) { Array offset; offset.resize(2); - offset[0] = mat->get_uv2_offset().x; - offset[1] = mat->get_uv2_offset().y; + offset[0] = p_offset.x; + offset[1] = p_offset.y; texture_transform["offset"] = offset; + } + bool is_scaled = p_scale != Vector2(1.0, 1.0); + if (is_scaled) { Array scale; scale.resize(2); - scale[0] = mat->get_uv2_scale().x; - scale[1] = mat->get_uv2_scale().y; + scale[0] = p_scale.x; + scale[1] = p_scale.y; texture_transform["scale"] = scale; - // Godot doesn't support texture rotation + } + Dictionary extension; + // Note: Godot doesn't support texture rotation. + if (is_offset || is_scaled) { extension["KHR_texture_transform"] = texture_transform; } return extension; } Dictionary GLTFDocument::_serialize_texture_transform_uv1(Ref<BaseMaterial3D> p_material) { - Dictionary extension; if (p_material.is_valid()) { - Dictionary texture_transform; - Array offset; - offset.resize(2); - offset[0] = p_material->get_uv1_offset().x; - offset[1] = p_material->get_uv1_offset().y; - texture_transform["offset"] = offset; - Array scale; - scale.resize(2); - scale[0] = p_material->get_uv1_scale().x; - scale[1] = p_material->get_uv1_scale().y; - texture_transform["scale"] = scale; - // Godot doesn't support texture rotation - extension["KHR_texture_transform"] = texture_transform; + Vector3 offset = p_material->get_uv1_offset(); + Vector3 scale = p_material->get_uv1_scale(); + return _serialize_texture_transform_uv(Vector2(offset.x, offset.y), Vector2(scale.x, scale.y)); } - return extension; + return Dictionary(); +} + +Dictionary GLTFDocument::_serialize_texture_transform_uv2(Ref<BaseMaterial3D> p_material) { + if (p_material.is_valid()) { + Vector3 offset = p_material->get_uv2_offset(); + Vector3 scale = p_material->get_uv2_scale(); + return _serialize_texture_transform_uv(Vector2(offset.x, offset.y), Vector2(scale.x, scale.y)); + } + return Dictionary(); } Error GLTFDocument::_serialize_version(Ref<GLTFState> state) { diff --git a/modules/gltf/gltf_state.h b/modules/gltf/gltf_state.h index 2fdef19038..7a06c93d59 100644 --- a/modules/gltf/gltf_state.h +++ b/modules/gltf/gltf_state.h @@ -60,6 +60,7 @@ class GLTFState : public Resource { Vector<uint8_t> glb_data; bool use_named_skin_binds = false; + bool use_khr_texture_transform = false; bool discard_meshes_and_materials = false; Vector<Ref<GLTFNode>> nodes; |