Emil_Shanaty/Faset_Engine
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Introduce stable render instances and prepared LOD policy

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Emil
2026-09-23 22:15:15 +03:00
parent 66f59f4afa
commit f8cd73b95f
8 changed files with 460 additions and 15 deletions
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tests/runtime_player_tests.cpp
+20
View File
@@ -162,6 +162,22 @@ void run() {
physicsDebug(view);
auto snapshot = view.build(scene, 16.f / 9.f);
check(snapshot.draws.size() == 1, "SceneView builtin mesh");
check(!snapshot.draws[0].instance_key.empty(),
"Persistent scene entity gives its builtin mesh a stable render key");
const auto builtin_key = snapshot.draws[0].instance_key;
auto second_mesh = scene;
second_mesh["entities"].push_back(
entity("other-mesh", nullptr,
Json::array({component("faset.mesh", {{"asset", "builtin:cube"}})})));
const auto two_meshes = view.build(second_mesh, 1);
check(two_meshes.draws.size() == 2 && two_meshes.draws[0].instance_key == builtin_key &&
two_meshes.draws[1].instance_key != builtin_key,
"A second instance of the same mesh has a distinct key without renumbering the first");
std::swap(second_mesh["entities"][1], second_mesh["entities"][2]);
const auto reordered_meshes = view.build(second_mesh, 1);
check(reordered_meshes.draws[0].instance_key == two_meshes.draws[1].instance_key &&
reordered_meshes.draws[1].instance_key == builtin_key,
"Render instance identity follows entity identity, not draw order");
check(snapshot.draws[0].model[12] == 3 && snapshot.draws[0].model[13] == 2 &&
snapshot.draws[0].model[14] == 3,
"hierarchy local transforms composed");
@@ -269,6 +285,10 @@ void run() {
check(view.diagnostics().empty(), "valid cooked texture/material produces no error");
check(snapshot.draws.size() == 1 && snapshot.draws[0].mesh->vertices.size() == 3,
"cooked mesh reaches render snapshot");
check(!snapshot.draws[0].instance_key.empty() &&
snapshot.draws[0].instance_key != builtin_key &&
view.build(importedScene, 1).draws[0].instance_key == snapshot.draws[0].instance_key,
"Imported primitive identity is stable across scene extraction");
check(snapshot.draws[0].model[12] == 5, "asset node transform composed with scene hierarchy");
check(snapshot.draws[0].texture && snapshot.draws[0].texture->srgb &&
snapshot.draws[0].texture->rgba == std::vector<std::uint8_t>({240, 80, 20, 255}),