burkkyy
9d2b167f70
Add a RenderTarget resource so the scene can render offscreen instead of straight to the swapchain. The editor uses it to show the scene inside the Viewport panel. - Rename AssetRegistry to ResourceRegistry (AssetTraits -> ResourceTraits, assets() -> resources()) and move the pools from engine/src/assets to engine/src/resources. It now covers non-asset GPU resources as well. - Replace loadMesh() with create<T>(...), and add create<RenderTarget>(), requestResize(), getExtent() and isAlive(). - Add RenderTarget and RenderTargetPool with RenderTargetHandle. Resizes are deferred and applied at the start of the next frame, when the GPU is idle. - Add Application::setSceneTarget(). With no target set, the scene still renders to the swapchain. With a target set, the scene renders offscreen and the swapchain receives only the UI. Frame extent and camera projection follow the target's size. - Add sophia::UI (Application::ui()) with image() and getTextureId() to draw a render target in an ImGui window, sizing the target to the available space. ImGuiRenderer now registers the target textures for this. - ViewportPanel takes the UI and a target, and draws the scene image in place of the flat background fill. - Update the testbed, the boids example, and the glossary for the rename.
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
#include "viewport_panel.hpp"
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#include <imgui.h>
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void ViewportPanel::onUpdate(const sophia::FrameInfo&) {
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const struct {
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const char* label;
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GizmoMode mode;
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} modes[] = {{"Move", GizmoMode::Move},
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{"Rotate", GizmoMode::Rotate},
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{"Scale", GizmoMode::Scale}};
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for (const auto& entry : modes) {
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if (ImGui::RadioButton(entry.label, gizmoMode == entry.mode)) {
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gizmoMode = entry.mode;
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}
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ImGui::SameLine();
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}
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ImGui::Checkbox("Grid", &showGrid);
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ImGui::Separator();
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const ImVec2 origin = ImGui::GetCursorScreenPos();
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const ImVec2 size = ImGui::GetContentRegionAvail();
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const ImVec2 end(origin.x + size.x, origin.y + size.y);
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ui.image(target);
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ImDrawList* drawList = ImGui::GetWindowDrawList();
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if (showGrid) {
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constexpr float GRID_STEP = 40.0f;
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const ImU32 gridColor = IM_COL32(255, 255, 255, 18);
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for (float x = GRID_STEP; x < size.x; x += GRID_STEP) {
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drawList->AddLine(ImVec2(origin.x + x, origin.y),
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ImVec2(origin.x + x, end.y), gridColor);
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}
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for (float y = GRID_STEP; y < size.y; y += GRID_STEP) {
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drawList->AddLine(ImVec2(origin.x, origin.y + y),
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ImVec2(end.x, origin.y + y), gridColor);
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}
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}
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ImGui::SetCursorScreenPos(ImVec2(origin.x + 8.0f, origin.y + 8.0f));
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ImGui::TextDisabled("%.0f x %.0f", size.x, size.y);
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}
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