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175db95c98
LU Toolbox's Combine Transparent is off by default, so each transparent brick is its own object and shape (the client can sort them). combine_transparent=1 joins them as before. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
244 lines
11 KiB
C++
244 lines
11 KiB
C++
#include "UgcJobs.h"
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#include <chrono>
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#include <sstream>
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#include "json.hpp"
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#include "Sd0.h"
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#include "UgcFormats.h"
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#include "UgcModel.h"
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#include "UgcModular.h"
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#include "ZCompression.h"
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namespace UgcJobs {
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void AddDownload(UgcStorage::Files& files, const std::string& name, const std::string& data) {
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files[name + ".gz"] = ZCompression::Gzip(data);
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files[name + ".checksum"] = UgcFormats::ChecksumXml(data);
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}
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std::string LxfmlFromBlob(const std::string& blob) {
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if (blob.starts_with("<?xml") || blob.starts_with("<LXFML")) return blob;
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std::stringstream stream(blob);
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try {
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Sd0 sd0(stream);
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return sd0.GetAsStringUncompressed();
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} catch (...) {
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return {};
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}
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}
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namespace {
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// The icon files of a model, and false when nothing was drawn
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bool AddIcon(UgcStorage::Files& files, const UgcModel::Model& model, const UgcRender::IconOptions& options, const std::vector<float>* ao = nullptr) {
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const auto icon = UgcRender::RenderIcon(model, options, ao);
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bool drawn = false;
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for (size_t i = 3; i < icon.rgba.size(); i += 4) drawn = drawn || icon.rgba[i] != 0;
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files["icon.png"] = UgcFormats::EncodePng(icon);
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AddDownload(files, "icon.dds", UgcFormats::EncodeDds(icon));
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return drawn;
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}
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}
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size_t CountParts(std::string_view lxfml) {
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size_t count = 0;
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for (size_t at = lxfml.find("<Part"); at != std::string_view::npos; at = lxfml.find("<Part", at + 5)) count++;
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return count;
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}
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uint64_t EstimateMemory(size_t parts, const Settings& settings) {
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// Measured: the renders' buffers, and per brick its mesh in each LOD (positions, normals, colors, indices,
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// the occlusion tree and copies made along the way), about 40 KB at LOD 0
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const uint64_t resolution = static_cast<uint64_t>(std::clamp(settings.optimize.resolution, 64, 4096));
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const uint64_t icon = static_cast<uint64_t>(settings.icon.size) * settings.icon.supersample;
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const uint64_t fixed = resolution * resolution * 8 + icon * icon * 20 + 1024 * 1024 * 4 + 16 * 1024 * 1024;
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return fixed + static_cast<uint64_t>(parts) * 40 * 1024 * (1 + settings.lods.size());
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}
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namespace {
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double Since(std::chrono::steady_clock::time_point start) {
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return std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - start).count();
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}
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std::string ShapeName(const std::string& shader, bool transparent) {
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return ("S" + (transparent ? std::string("01") : shader) + (transparent ? "_Alpha_" : "_Opaque_") + "Model").substr(0, 60);
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}
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}
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Outcome ProcessModel(const std::string& blob, UgcBricks::BrickLibrary& library, const Settings& settings, uint64_t seed) {
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Outcome outcome;
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const auto started = std::chrono::steady_clock::now();
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const auto lxfml = LxfmlFromBlob(blob);
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if (lxfml.empty()) {
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outcome.error = "the stored LXFML can't be read";
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return outcome;
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}
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std::string error;
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const auto parts = UgcModel::ParseLxfml(lxfml, error);
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if (parts.empty()) {
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outcome.error = error;
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return outcome;
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}
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if (settings.maxBricks > 0 && parts.size() > settings.maxBricks) {
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outcome.error = "the model has " + std::to_string(parts.size()) + " bricks, more than max_model_bricks (" + std::to_string(settings.maxBricks) + ")";
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return outcome;
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}
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auto lods = settings.lods;
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std::erase_if(lods, [](uint32_t lod) { return lod > 3; });
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std::sort(lods.begin(), lods.end());
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lods.erase(std::unique(lods.begin(), lods.end()), lods.end());
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if (lods.empty()) lods.push_back(0);
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const auto ranges = UgcModel::LodRanges(lods, settings.lodDistances);
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nlohmann::json stats;
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stats["version"] = 1;
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stats["bricks"] = parts.size();
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auto& lodStats = stats["lods"] = nlohmann::json::array();
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double buildMs = 0, hsrMs = 0, aoMs = 0;
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// Every LOD made like LU Toolbox makes each LOD collection: colored, hidden faces removed, lighting baked, divided
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std::vector<UgcModel::Model> models;
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std::vector<std::vector<UgcModel::Mesh>> opaquePieces, transparentPieces;
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UgcModel::Model preview; // LOD 0 before the lighting bake, for the dashboard
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// The icon: LU Toolbox's icon renderer imports LOD 0 again, with its own color corrections and no variation.
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// The same bricks in the same order, so LOD 0's hidden surface removal and occlusion apply to it too (neither
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// changes what the icon's camera sees).
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UgcModel::Model iconModel;
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std::vector<float> iconAo;
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double iconMs = 0;
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for (size_t i = 0; i < lods.size(); i++) {
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auto options = settings.build;
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options.seed = seed;
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options.lod = lods[i];
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auto step = std::chrono::steady_clock::now();
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auto model = UgcModel::Build(parts, library, options);
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buildMs += Since(step);
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if (i == 0) {
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if (!model.missingDesigns.empty()) {
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outcome.note = "no geometry for design(s)";
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for (const auto design : model.missingDesigns) outcome.note += " " + std::to_string(design);
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stats["missingDesigns"] = model.missingDesigns;
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}
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if (model.Empty()) {
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outcome.error = "none of the model's bricks have geometry";
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if (!outcome.note.empty()) outcome.error += " (" + outcome.note + ")";
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return outcome;
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}
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}
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nlohmann::json entry{ { "lod", lods[i] }, { "near", ranges[i].first }, { "far", ranges[i].second },
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{ "opaqueBefore", model.opaque.TriangleCount() }, { "transparent", model.transparent.TriangleCount() } };
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step = std::chrono::steady_clock::now();
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const auto optimized = UgcRender::Optimize(model, settings.optimize);
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hsrMs += Since(step);
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if (i == 0 && optimized.trianglesRemoved > 0) {
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if (!outcome.note.empty()) outcome.note += "; ";
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outcome.note += "removed " + std::to_string(optimized.trianglesRemoved) + " of " + std::to_string(optimized.trianglesBefore) + " triangles";
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}
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if (i == 0) {
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preview = model;
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step = std::chrono::steady_clock::now();
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auto iconOptions = settings.build;
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iconOptions.seed = seed;
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iconOptions.lod = 0;
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iconOptions.icon = settings.iconCorrectColors;
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iconOptions.colorVariation = settings.iconColorVariation;
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iconModel = UgcModel::Build(parts, library, iconOptions);
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if (!optimized.kept.empty() && iconModel.opaque.TriangleCount() == optimized.kept.size()) UgcModel::KeepTriangles(iconModel.opaque, optimized.kept);
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iconMs += Since(step);
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}
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step = std::chrono::steady_clock::now();
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auto ao = UgcRender::BakeAo(model, settings.ao);
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aoMs += Since(step);
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if (i == 0) iconAo = std::move(ao);
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entry["opaqueAfter"] = model.opaque.TriangleCount();
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entry["vertices"] = model.opaque.positions.size() + model.transparent.positions.size();
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opaquePieces.push_back(UgcModel::Divide(model.opaque));
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transparentPieces.push_back(settings.combineTransparent ? UgcModel::Divide(model.transparent) : UgcModel::SplitAt(model.transparent, model.transparentBricks));
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entry["shapes"] = opaquePieces.back().size() + transparentPieces.back().size();
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lodStats.push_back(entry);
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}
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outcome.aoBaked = settings.ao.enabled;
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// An NiLODNode for the opaque bricks and one for the transparent ones, as LU Toolbox names them
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const auto groups = [&](size_t levels, const std::vector<std::vector<UgcModel::Mesh>>& opaque, const std::vector<std::vector<UgcModel::Mesh>>& transparent) {
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std::vector<UgcFormats::NifLodGroup> out;
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for (const bool isTransparent : { false, true }) {
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UgcFormats::NifLodGroup group{ ShapeName(settings.shaderOpaque, isTransparent), isTransparent, {} };
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bool any = false;
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for (size_t i = 0; i < levels; i++) {
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UgcFormats::NifLod lod{ ranges[i].first, ranges[i].second, "LOD_" + std::to_string(lods[i]), {} };
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for (const auto& piece : (isTransparent ? transparent : opaque)[i]) lod.pieces.push_back(&piece);
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any = any || !lod.pieces.empty();
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group.lods.push_back(std::move(lod));
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}
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if (any) out.push_back(std::move(group));
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}
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return out;
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};
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const auto nif = UgcFormats::WriteLodNif("SceneNode_Model", groups(lods.size(), opaquePieces, transparentPieces));
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outcome.files["model.nif"] = nif;
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AddDownload(outcome.files, "model.nif", nif);
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AddDownload(outcome.files, "model.lxfml", lxfml);
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{
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const std::vector<std::vector<UgcModel::Mesh>> opaque{ UgcModel::Divide(preview.opaque) }, transparent{ transparentPieces[0] };
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outcome.files["model.noao.nif"] = UgcFormats::WriteLodNif("SceneNode_Model", groups(1, opaque, transparent));
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}
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const auto iconStart = std::chrono::steady_clock::now();
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AddIcon(outcome.files, iconModel, settings.icon, iconAo.empty() ? nullptr : &iconAo);
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iconMs += Since(iconStart);
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stats["ms"] = { { "build", std::lround(buildMs) }, { "hiddenSurfaces", std::lround(hsrMs) }, { "ambientOcclusion", std::lround(aoMs) },
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{ "icon", std::lround(iconMs) }, { "total", std::lround(Since(started)) } };
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stats["settings"] = { { "palette", settings.build.palette == UgcModel::ePalette::LU_TOOLBOX ? "lu_toolbox" : "brickdb" },
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{ "colorVariation", settings.build.colorVariation }, { "transparentOpacity", settings.build.transparentOpacity },
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{ "removeHiddenFaces", settings.optimize.removeHidden }, { "groundPlane", settings.optimize.groundPlane },
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{ "ao", settings.ao.enabled }, { "aoDistance", settings.ao.distance }, { "aoSamples", settings.ao.samples }, { "aoStrength", settings.ao.strength } };
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outcome.stats = stats.dump();
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outcome.files["stats.json"] = outcome.stats;
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outcome.ok = true;
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return outcome;
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}
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Outcome ProcessModular(const ModularInput& input, const std::filesystem::path& res, const Settings& settings) {
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Outcome outcome;
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const auto build = UgcModular::ParseBuild(input.buildXml);
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if (!build) {
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outcome.error = "the build type has no topology in ModularBuildComponent";
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return outcome;
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}
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std::vector<UgcModular::Module> modules;
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for (const auto& moduleInput : input.modules) {
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const auto path = UgcBricks::ResolvePath(res, moduleInput.renderAsset);
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const auto data = path ? UgcBricks::ReadFile(*path) : std::nullopt;
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if (!data) {
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outcome.note += "module " + std::to_string(moduleInput.lot) + " has no mesh (" + moduleInput.renderAsset + "); ";
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continue;
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}
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std::string error;
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auto nif = NifFile::Parse(*data, 0, error);
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if (!nif) {
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outcome.note += "module " + std::to_string(moduleInput.lot) + ": " + error + "; ";
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continue;
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}
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modules.push_back({ moduleInput.partCode, std::move(*nif), UgcModular::ParseModuleConnections(moduleInput.moduleXml) });
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}
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if (modules.empty()) {
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outcome.error = "none of the modules have a mesh";
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if (!outcome.note.empty()) outcome.error += " (" + outcome.note + ")";
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return outcome;
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}
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const auto model = UgcModular::Assemble(*build, modules, outcome.note);
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if (model.Empty()) {
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outcome.error = "the modules have no triangles";
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return outcome;
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}
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auto options = settings.modularIcon;
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options.modelRotation = build->additionalRotation * options.modelRotation;
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AddIcon(outcome.files, model, options);
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outcome.ok = true;
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return outcome;
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}
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}
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