fix(image): scope sampled-image upload barriers to the real consumer stage (#54) #86
2026-06-16
fix(image): scope sampled-image upload barriers to the real consumer stage (#54)
ImageVulkan hardcoded VK_PIPELINE_STAGE_RAY_TRACING_SHADER_BIT_KHR as the consuming stage in every layout transition. The UI font atlas is sampled by a *compute* shader, so the upload barrier's dst scope never covered the real consumer — a correctness gap, not just lost overlap. Parameterize the consuming stage per image: store it once at Create (defaulting to RT, preserving existing RT/example callers) and reuse it in every Update / UpdateRegion / compressed-Update transition. FontAtlas passes VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>