Add comprehensive OpenXR and Vulkan 1.4 Spatial Computing chapter navigation

Add navigation structure for new OpenXR-Vulkan spatial computing guide covering 20 chapters: OpenXR-Vulkan handshake, runtime-owned swapchains, dynamic rendering, predictive frame loop, late latching, action spaces, Slang shaders, quad-views with foveated rendering, variable rate shading, canted displays, CAVE architecture, warp and blend, lightfield theory, plenoptic synthesis, scene understanding, ML inference, semantic occlusion, platform divergence, and spatial diagnostics. Each chapter includes introduction, technical deep-dives, and engine integration sections.

Author: gpx1000

antora/modules/ROOT/nav.adoc

@@ -149,3 +149,104 @@
 *** xref:Building_a_Simple_Engine/Advanced_Topics/Robustness2.adoc[Robustness2]
 ** Appendix
 *** xref:Building_a_Simple_Engine/Appendix/appendix.adoc[Appendix]
+
+* OpenXR and Vulkan 1.4 Spatial Computing
+** xref:OpenXR_Vulkan_Spatial_Computing/introduction.adoc[Introduction]
+** The OpenXR-Vulkan 1.4 Handshake
+*** xref:OpenXR_Vulkan_Spatial_Computing/02_OpenXR_Vulkan_Handshake/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/02_OpenXR_Vulkan_Handshake/02_system_integration.adoc[System Integration]
+*** xref:OpenXR_Vulkan_Spatial_Computing/02_OpenXR_Vulkan_Handshake/03_hardware_alignment_luid.adoc[Hardware Alignment (LUID)]
+*** xref:OpenXR_Vulkan_Spatial_Computing/02_OpenXR_Vulkan_Handshake/04_vulkan_1_4_feature_requirements.adoc[Vulkan 1.4 Feature Requirements]
+*** xref:OpenXR_Vulkan_Spatial_Computing/02_OpenXR_Vulkan_Handshake/05_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Runtime-Owned Swapchains
+*** xref:OpenXR_Vulkan_Spatial_Computing/03_Runtime_Owned_Swapchains/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/03_Runtime_Owned_Swapchains/02_external_image_negotiation.adoc[External Image Negotiation]
+*** xref:OpenXR_Vulkan_Spatial_Computing/03_Runtime_Owned_Swapchains/03_raii_resource_integration.adoc[RAII Resource Integration]
+*** xref:OpenXR_Vulkan_Spatial_Computing/03_Runtime_Owned_Swapchains/04_memory_ownership_lifecycle.adoc[Memory Ownership Lifecycle]
+*** xref:OpenXR_Vulkan_Spatial_Computing/03_Runtime_Owned_Swapchains/05_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Dynamic Rendering for Spatial Views
+*** xref:OpenXR_Vulkan_Spatial_Computing/04_Dynamic_Rendering/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/04_Dynamic_Rendering/02_rendering_to_spatial_swapchains.adoc[Rendering into Spatial Swapchains]
+*** xref:OpenXR_Vulkan_Spatial_Computing/04_Dynamic_Rendering/03_stereo_viewport_scissor.adoc[Stereo Viewport & Scissor Management]
+*** xref:OpenXR_Vulkan_Spatial_Computing/04_Dynamic_Rendering/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** The Predictive Frame Loop
+*** xref:OpenXR_Vulkan_Spatial_Computing/05_Predictive_Frame_Loop/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/05_Predictive_Frame_Loop/02_xr_lifecycle.adoc[The XR Lifecycle]
+*** xref:OpenXR_Vulkan_Spatial_Computing/05_Predictive_Frame_Loop/03_display_time_prediction.adoc[Display Time Prediction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/05_Predictive_Frame_Loop/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Late Latching
+*** xref:OpenXR_Vulkan_Spatial_Computing/06_Late_Latching/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/06_Late_Latching/02_last_second_update.adoc[The Last-Second Update]
+*** xref:OpenXR_Vulkan_Spatial_Computing/06_Late_Latching/03_implementation.adoc[Implementation]
+*** xref:OpenXR_Vulkan_Spatial_Computing/06_Late_Latching/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Action Spaces and Input
+*** xref:OpenXR_Vulkan_Spatial_Computing/07_Action_Spaces_Input/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/07_Action_Spaces_Input/02_openxr_action_system.adoc[The OpenXR Action System]
+*** xref:OpenXR_Vulkan_Spatial_Computing/07_Action_Spaces_Input/03_space_manifolds.adoc[Space Manifolds]
+*** xref:OpenXR_Vulkan_Spatial_Computing/07_Action_Spaces_Input/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Slang for Spatial Shaders
+*** xref:OpenXR_Vulkan_Spatial_Computing/08_Slang_Spatial_Shaders/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/08_Slang_Spatial_Shaders/02_native_multiview.adoc[Native Multiview (N=2)]
+*** xref:OpenXR_Vulkan_Spatial_Computing/08_Slang_Spatial_Shaders/03_slang_architecture.adoc[Slang Architecture]
+*** xref:OpenXR_Vulkan_Spatial_Computing/08_Slang_Spatial_Shaders/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Quad-Views and Foveated Rendering
+*** xref:OpenXR_Vulkan_Spatial_Computing/09_Quad_Views_Foveated/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/09_Quad_Views_Foveated/02_primary_stereo_with_insets.adoc[Primary Stereo with Insets]
+*** xref:OpenXR_Vulkan_Spatial_Computing/09_Quad_Views_Foveated/03_multi_layer_composition.adoc[Multi-Layer Composition]
+*** xref:OpenXR_Vulkan_Spatial_Computing/09_Quad_Views_Foveated/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Variable Rate Shading
+*** xref:OpenXR_Vulkan_Spatial_Computing/10_Variable_Rate_Shading/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/10_Variable_Rate_Shading/02_fragment_density_control.adoc[Fragment Density Control]
+*** xref:OpenXR_Vulkan_Spatial_Computing/10_Variable_Rate_Shading/03_gaze_driven_logic.adoc[Gaze-Driven Logic]
+*** xref:OpenXR_Vulkan_Spatial_Computing/10_Variable_Rate_Shading/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Canted Displays
+*** xref:OpenXR_Vulkan_Spatial_Computing/11_Canted_Displays/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/11_Canted_Displays/02_non_parallel_projections.adoc[Non-Parallel Projections]
+*** xref:OpenXR_Vulkan_Spatial_Computing/11_Canted_Displays/03_viewport_swizzling.adoc[Viewport Swizzling]
+*** xref:OpenXR_Vulkan_Spatial_Computing/11_Canted_Displays/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** CAVE Architecture
+*** xref:OpenXR_Vulkan_Spatial_Computing/12_CAVE_Architecture/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/12_CAVE_Architecture/02_projector_based_spatial_tech.adoc[Projector-Based Spatial Tech]
+*** xref:OpenXR_Vulkan_Spatial_Computing/12_CAVE_Architecture/03_hardware_sync.adoc[Hardware Sync]
+*** xref:OpenXR_Vulkan_Spatial_Computing/12_CAVE_Architecture/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Warp and Blend
+*** xref:OpenXR_Vulkan_Spatial_Computing/13_Warp_and_Blend/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/13_Warp_and_Blend/02_geometric_correction.adoc[Geometric Correction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/13_Warp_and_Blend/03_post_process_warping.adoc[Post-Process Warping]
+*** xref:OpenXR_Vulkan_Spatial_Computing/13_Warp_and_Blend/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** LightField Theory
+*** xref:OpenXR_Vulkan_Spatial_Computing/14_LightField_Theory/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/14_LightField_Theory/02_4d_lightfield_representation.adoc[4D LightField Representation]
+*** xref:OpenXR_Vulkan_Spatial_Computing/14_LightField_Theory/03_high_density_view_arrays.adoc[High-Density View Arrays]
+*** xref:OpenXR_Vulkan_Spatial_Computing/14_LightField_Theory/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Plenoptic Synthesis
+*** xref:OpenXR_Vulkan_Spatial_Computing/15_Plenoptic_Synthesis/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/15_Plenoptic_Synthesis/02_synthesis_shaders.adoc[Synthesis Shaders]
+*** xref:OpenXR_Vulkan_Spatial_Computing/15_Plenoptic_Synthesis/03_ray_traced_synthesis.adoc[Ray Traced Synthesis]
+*** xref:OpenXR_Vulkan_Spatial_Computing/15_Plenoptic_Synthesis/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Scene Understanding
+*** xref:OpenXR_Vulkan_Spatial_Computing/16_Scene_Understanding/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/16_Scene_Understanding/02_environmental_ingestion.adoc[Environmental Ingestion]
+*** xref:OpenXR_Vulkan_Spatial_Computing/16_Scene_Understanding/03_zero_copy_hand_off.adoc[Zero-Copy Hand-off]
+*** xref:OpenXR_Vulkan_Spatial_Computing/16_Scene_Understanding/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** ML Inference for Spatial Data
+*** xref:OpenXR_Vulkan_Spatial_Computing/17_ML_Inference_Spatial/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/17_ML_Inference_Spatial/02_on_gpu_inference.adoc[On-GPU Inference]
+*** xref:OpenXR_Vulkan_Spatial_Computing/17_ML_Inference_Spatial/03_refining_spatial_data.adoc[Refining Spatial Data]
+*** xref:OpenXR_Vulkan_Spatial_Computing/17_ML_Inference_Spatial/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Semantic Occlusion
+*** xref:OpenXR_Vulkan_Spatial_Computing/18_Semantic_Occlusion/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/18_Semantic_Occlusion/02_ml_driven_segmentation.adoc[ML-Driven Segmentation]
+*** xref:OpenXR_Vulkan_Spatial_Computing/18_Semantic_Occlusion/03_per_pixel_masking.adoc[Per-Pixel Masking]
+*** xref:OpenXR_Vulkan_Spatial_Computing/18_Semantic_Occlusion/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Platform Divergence
+*** xref:OpenXR_Vulkan_Spatial_Computing/19_Platform_Divergence/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/19_Platform_Divergence/02_desktop_high_end.adoc[Desktop High-End]
+*** xref:OpenXR_Vulkan_Spatial_Computing/19_Platform_Divergence/03_mobile_mastery.adoc[Mobile Mastery]
+*** xref:OpenXR_Vulkan_Spatial_Computing/19_Platform_Divergence/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** Spatial Diagnostics
+*** xref:OpenXR_Vulkan_Spatial_Computing/20_Spatial_Diagnostics_CI_CD/01_introduction.adoc[Introduction]
+*** xref:OpenXR_Vulkan_Spatial_Computing/20_Spatial_Diagnostics_CI_CD/02_spatial_debugging.adoc[Spatial Debugging]
+*** xref:OpenXR_Vulkan_Spatial_Computing/20_Spatial_Diagnostics_CI_CD/03_automated_qa.adoc[Automated QA]
+*** xref:OpenXR_Vulkan_Spatial_Computing/20_Spatial_Diagnostics_CI_CD/04_incorporating_into_the_engine.adoc[Incorporating into the Engine]
+** xref:OpenXR_Vulkan_Spatial_Computing/conclusion.adoc[Conclusion]