Samuel Bouchet
aab38bb9b9
Implement CPU-side Naive Surface Nets for smooth voxel surfaces (SmoothStone, Snow) coexisting with blocky voxels (Grass, Dirt, Stone, Sand). Key features: - SmoothMesher with binary SDF, centroid vertex placement, per-axis boundary clamping to align with blocky grid at smooth↔blocky transitions - Cross-chunk connectivity: PAD=2 SDF grid, vertex range [-1, CHUNK_SIZE), canonical edge ownership (no duplicate triangles, no z-fighting) - Face normals oriented by edge axis+sign (robust with binary SDF, unlike SDF gradient dot or centroid sampling approaches) - Y-axis winding fix: sharing cells have different spatial arrangement, requiring opposite winding from X and Z axes - GPU mesher treats smooth neighbors as solid (no blocky faces toward smooth) - Material blending: primary (smooth-only) + secondary (all counts) per vertex - Dedicated shaders: voxelSmoothVS (vertex pulling t6) + voxelSmoothPS (triplanar + lerp blending between two materials) - Separate render pass with LoadOp::LOAD after voxels+topings - New materials: SmoothStone (mat 6), blocky Stone (mat 3) and Dirt patches added to world generation for boundary testing
68 lines
3.3 KiB
CMake
68 lines
3.3 KiB
CMake
cmake_minimum_required(VERSION 3.19)
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project(BVLEVoxels LANGUAGES CXX)
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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# Wicked Engine options - disable what we don't need
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set(WICKED_EDITOR OFF CACHE BOOL "" FORCE)
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set(WICKED_TESTS OFF CACHE BOOL "" FORCE)
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set(WICKED_IMGUI_EXAMPLE OFF CACHE BOOL "" FORCE)
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set(WICKED_WINDOWS_TEMPLATE OFF CACHE BOOL "" FORCE)
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set(WICKED_LINUX_TEMPLATE OFF CACHE BOOL "" FORCE)
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set(WICKED_ENABLE_SYMLINKS OFF CACHE BOOL "" FORCE)
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add_subdirectory(engine)
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# ── Voxel Engine Library ──────────────────────────────────────────
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file(GLOB_RECURSE VOXEL_SOURCES src/voxel/*.cpp src/voxel/*.h)
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add_library(VoxelEngine STATIC ${VOXEL_SOURCES})
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target_include_directories(VoxelEngine PUBLIC src)
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target_link_libraries(VoxelEngine PUBLIC WickedEngine)
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# ── Main Application ─────────────────────────────────────────────
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file(GLOB APP_SOURCES src/app/*.cpp src/app/*.h)
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add_executable(BVLEVoxels WIN32 ${APP_SOURCES})
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target_link_libraries(BVLEVoxels PRIVATE VoxelEngine WickedEngine)
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# Copy Content directory (shaders, etc.) to build output
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add_custom_command(TARGET BVLEVoxels POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_directory
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${CMAKE_SOURCE_DIR}/engine/Content
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$<TARGET_FILE_DIR:BVLEVoxels>/Content
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)
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# Copy DXC shader compiler DLL next to the exe (required for runtime shader compilation)
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add_custom_command(TARGET BVLEVoxels POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${CMAKE_SOURCE_DIR}/engine/WickedEngine/dxcompiler.dll
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$<TARGET_FILE_DIR:BVLEVoxels>/dxcompiler.dll
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COMMENT "Copying DXC shader compiler DLL"
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)
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# Copy our custom shader sources into Wicked's shader source tree
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# so LoadShader can find and compile them as "voxel/voxelVS.cso"
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add_custom_command(TARGET BVLEVoxels POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_directory
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${CMAKE_SOURCE_DIR}/shaders
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${CMAKE_SOURCE_DIR}/engine/WickedEngine/shaders/voxel
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COMMENT "Copying voxel shaders to Wicked Engine shader source directory"
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)
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# Delete stale compiled voxel shaders to force runtime recompilation.
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# Wicked Engine only compiles .hlsl → .cso when .cso is ABSENT (no timestamp check).
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# Without this step, .hlsl changes are silently ignored if old .cso files exist.
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add_custom_command(TARGET BVLEVoxels POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E rm -f
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelVS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelPS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelCullCS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelMeshCS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelTopingVS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelTopingPS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelSmoothVS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelSmoothPS.cso
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$<TARGET_FILE_DIR:BVLEVoxels>/shaders/hlsl6/voxel/voxelCommon.hlsli.cso
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COMMENT "Clearing stale voxel shader cache (forces recompilation from current .hlsl sources)"
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)
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