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debug-vulkan

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Mis à jour4 juin 2026 à 19:21

Diagnoses Spectra Vulkan rendering failures — validation layers, swapchain OUT_OF_DATE, buffer uploads, pipeline/SPIR-V mismatches, and lavapipe software rendering. Use for GPU errors, blank frames, validation spam, resize glitches, or shader pipeline issues in src/render/vulkan/.

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Source

danlil240

danlil240/Spectra

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Métiers associésSOC

Basé sur la classification professionnelle SOC

Analystes des systèmes informatiquesProfessions informatiques et mathématiques·SOC 15-1211

SKILL.md

readonly

name	debug-vulkan
description	Diagnoses Spectra Vulkan rendering failures — validation layers, swapchain OUT_OF_DATE, buffer uploads, pipeline/SPIR-V mismatches, and lavapipe software rendering. Use for GPU errors, blank frames, validation spam, resize glitches, or shader pipeline issues in src/render/vulkan/.

Debug Vulkan

Validation layers

cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug
cmake --build build -j$(nproc)
VK_INSTANCE_LAYERS=VK_LAYER_KHRONOS_validation ./build/examples/basic_line

Key files: src/render/vulkan/vk_backend.cpp, vk_swapchain.cpp, vk_buffer.cpp, vk_pipeline.cpp, cmake/CompileShaders.cmake.

Common issues

Symptom	Check
Validation errors	Extensions, sync, image layouts
Present / resize	`vk_swapchain.cpp`, framebuffer size, recreate path
Upload / corruption	VMA flags, staging barriers, vertex counts
Pipeline mismatch	SPIR-V rebuild (re-configure CMake), push constants, vertex bindings

Diagnostics

vulkaninfo --summary
ls /usr/share/vulkan/icd.d/
VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/lvp_icd.x86_64.json ./build/examples/basic_line

Live capture

Run with validation, then spectra-mcp: get_state, capture_window to /tmp/debug_snap.png.

Resize/sync deep dives: see legacy notes in skills/ or plans/archive/; prefer no vkDeviceWaitIdle() in the frame loop.

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name	debug-vulkan
description	Diagnoses Spectra Vulkan rendering failures — validation layers, swapchain OUT_OF_DATE, buffer uploads, pipeline/SPIR-V mismatches, and lavapipe software rendering. Use for GPU errors, blank frames, validation spam, resize glitches, or shader pipeline issues in src/render/vulkan/.

Debug Vulkan

Validation layers

cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug
cmake --build build -j$(nproc)
VK_INSTANCE_LAYERS=VK_LAYER_KHRONOS_validation ./build/examples/basic_line

Key files: src/render/vulkan/vk_backend.cpp, vk_swapchain.cpp, vk_buffer.cpp, vk_pipeline.cpp, cmake/CompileShaders.cmake.

Common issues

Symptom	Check
Validation errors	Extensions, sync, image layouts
Present / resize	`vk_swapchain.cpp`, framebuffer size, recreate path
Upload / corruption	VMA flags, staging barriers, vertex counts
Pipeline mismatch	SPIR-V rebuild (re-configure CMake), push constants, vertex bindings

Diagnostics

vulkaninfo --summary
ls /usr/share/vulkan/icd.d/
VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/lvp_icd.x86_64.json ./build/examples/basic_line

Live capture

Run with validation, then spectra-mcp: get_state, capture_window to /tmp/debug_snap.png.

Resize/sync deep dives: see legacy notes in skills/ or plans/archive/; prefer no vkDeviceWaitIdle() in the frame loop.