Emil_Shanaty/Cortex_Engine
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f8384a8672eb5a6adbe68b3c502fff2f42ab8b81
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4 Commits
Author SHA1 Message Date
emil28092005 f8384a8672 fix: ImGui font upload barriers — use correct sync2 access flags 
0x2000 was VK_ACCESS_MEMORY_READ_BIT in Vulkan 1.0 but maps to
VK_ACCESS_2_HOST_READ_BIT in sync2. Replaced with 0x1000
(VK_ACCESS_2_TRANSFER_WRITE_BIT) for dst access on transfer layout.
 2026-06-19 08:54:54 +03:00
emil28092005 bfde04b381 feat: ImGui debug overlay — FPS, camera position, entity count 
- ImGui.NET 1.91.6.1 integrated into Engine.Graphics.Vulkan
- VulkanImGui.cs: font atlas upload (staging → VkImage), sampler,
  descriptor set (COMBINED_IMAGE_SAMPLER), separate pipeline with
  alpha blending, no depth write, dynamic scissor
- ImGui shaders: imgui.vert (ortho MVP push constant) + imgui.frag
  (font texture sampler)
- Dynamic vertex/index buffers (HOST_VISIBLE, grow on demand)
- IRenderer interface: BeginImGuiFrame/EndImGuiFrame default methods
- Program.cs: debug window with FPS, camera pos/target, entity count
- 0 critical validation errors, ~750 FPS with physics + ImGui
 2026-06-18 17:34:42 +03:00
emil28092005 2e0970e769 feat: rebuild Vulkan renderer from scratch — pure P/Invoke triangle (Vulkan 1.3) 
- Complete rewrite of Engine.Graphics.Vulkan with pure P/Invoke (no wrapper libs)
- Vulkan 1.3: dynamic rendering (vkCmdBeginRendering/vkCmdEndRendering),
  synchronization2 (vkQueueSubmit2, vkCmdPipelineBarrier2)
- Split types into VulkanHandles.cs, VulkanEnums.cs, VulkanStructs.cs
- Staging buffer → device-local vertex buffer pattern
- Correct swapchain semaphore indexing (per-image, not per-frame-in-flight)
- VK_EXT_debug_utils debug messenger with validation layer fallback
- Dynamic viewport/scissor (no pipeline recreation on resize)
- Simplified Program.cs to triangle-only rendering
- Removed old Silk.NET renderer, ImGui, PBR shaders, screenshot code
- Updated VULKAN_IMPLEMENTATION_PLAN.md with full architecture decisions
 2026-06-18 01:49:25 +03:00
emil28092005 749fbc8df4 feat: ImGui integration + real screenshot capture via Vulkan 
ImGui:
- ImGui.NET 1.91.6.1 NuGet package
- VulkanImGui: font texture upload, ImGui pipeline (blending, no depth), vertex/index buffer streaming
- GLSL 450 ImGui shaders (vert: scale/translate push constants, frag: font texture sampler)
- Compiled to SPIR-V via @webgpu/glslang
- Debug overlay: FPS, camera position, entity count, light list
- 1600+ FPS with ImGui active

Screenshot:
- vkCmdCopyImageToBuffer embedded in main command buffer
- Layout transition PresentSrcKHR→TransferSrcOptimal→PresentSrcKHR
- Deferred read: staging buffer read on next frame after fence
- BMP format written directly to FileStream (row by row)
- All 16 camera tour screenshots captured (1280x720x32bpp)

All 66 tests pass.
 2026-06-17 23:39:38 +03:00