Add RenderMode

- Replace `Scene::pipeline_state` with `render_mode`.
- Remove `Pipeline::State::line_width`.

Author: karnkaul

lib/engine/src/scene_renderer.cpp

@@ -78,9 +78,7 @@ std::span<glm::mat4x4 const> SceneRenderer::make_instance_mats(Node const& node,
 }
 
 void SceneRenderer::render(Renderer& renderer, vk::CommandBuffer cb, Skybox const& skybox) {
-	auto state = m_scene->pipeline_state;
-	state.depth_test = false;
-	auto pipeline = renderer.bind_pipeline(cb, state, "skybox");
+	auto pipeline = renderer.bind_pipeline(cb, {.depth_test = false}, "skybox");
 	pipeline.set_line_width(1.0f);
 	update_view(pipeline);
 	auto& set1 = pipeline.next_set(1);
@@ -99,10 +97,9 @@ void SceneRenderer::render(Renderer& renderer, vk::CommandBuffer cb, Node const&
 			auto const& material = primitive.material ? resources.materials[primitive.material->value()] : static_cast<Material const&>(s_default_material);
 			auto const& static_mesh = resources.static_meshes[primitive.static_mesh];
 
-			auto state = m_scene->pipeline_state;
-			state.topology = static_mesh.topology();
-			auto pipeline = renderer.bind_pipeline(cb, state, material.shader_id());
-			pipeline.set_line_width(m_scene->pipeline_state.line_width);
+			auto const mode = m_scene->render_mode.type == RenderMode::Type::eWireframe ? vk::PolygonMode::eLine : vk::PolygonMode::eFill;
+			auto pipeline = renderer.bind_pipeline(cb, {.mode = mode, .topology = static_mesh.topology()}, material.shader_id());
+			pipeline.set_line_width(m_scene->render_mode.line_width);
 
 			update_view(pipeline);
 			auto const store = TextureStore{resources.textures, m_white, m_black};

lib/scene/include/facade/scene/scene.hpp

@@ -6,14 +6,25 @@
 #include <facade/util/image.hpp>
 #include <facade/util/ptr.hpp>
 #include <facade/util/transform.hpp>
-#include <facade/vk/pipeline.hpp>
 #include <memory>
 #include <span>
 #include <vector>
 
 namespace facade {
 struct DataProvider;
 
+///
+/// \brief Polygon rendering mode: applied scene-wide.
+///
+struct RenderMode {
+	enum class Type { eFill, eWireframe };
+
+	Type type{Type::eFill};
+	float line_width{1.0f};
+
+	bool operator==(RenderMode const&) const = default;
+};
+
 ///
 /// \brief Models a 3D scene.
 ///
@@ -177,9 +188,9 @@ class Scene {
 	Lights lights{};
 
 	///
-	/// \brief Global pipeline state.
+	/// \brief Render mode.
 	///
-	Pipeline::State pipeline_state{};
+	RenderMode render_mode{};
 
 	///
 	/// \brief Update animations and corresponding nodes.

lib/vk/include/facade/vk/pipeline.hpp

@@ -9,7 +9,6 @@ class Pipeline {
 	struct State {
 		vk::PolygonMode mode{vk::PolygonMode::eFill};
 		vk::PrimitiveTopology topology{vk::PrimitiveTopology::eTriangleList};
-		float line_width{1.0f};
 		bool depth_test{true};
 
 		bool operator==(State const&) const = default;

src/gui/main_menu.cpp

@@ -94,9 +94,9 @@ bool WindowMenu::display_stats(Engine& engine) {
 		if (ImGui::SmallButton("Vsync")) { change_vsync(engine); }
 		ImGui::SameLine();
 		ImGui::Text("%s", vsync_status(stats.mode).data());
-		auto& ps = engine.scene().pipeline_state;
-		bool wireframe = ps.mode == vk::PolygonMode::eLine;
-		if (ImGui::Checkbox("Wireframe", &wireframe)) { ps.mode = wireframe ? vk::PolygonMode::eLine : vk::PolygonMode::eFill; }
+		auto& ps = engine.scene().render_mode;
+		bool wireframe = ps.type == RenderMode::Type::eWireframe;
+		if (ImGui::Checkbox("Wireframe", &wireframe)) { ps.type = wireframe ? RenderMode::Type::eWireframe : RenderMode::Type::eFill; }
 		if (wireframe) {
 			ImGui::SameLine();
 			ImGui::DragFloat("Line Width", &ps.line_width, 0.1f, 1.0f, 10.0f);