Fixing UI Texture Filtering in Vulkan and NVRHI // Renderer 2025 // Hazel Engine Stream (12.06.2025) скачать в хорошем качестве

Fixing UI Texture Filtering in Vulkan and NVRHI // Renderer 2025 // Hazel Engine Stream (12.06.2025)

Watch Live ►   / thecherno   Discord channel for live streams ►   / discord   00:00 Problem Introduction Cherno explains UI texture filtering issues causing blocky, non-smooth icon rendering Demonstrates the problem: images showing up pixelated instead of filtered Compares current broken state with previous working version 15:00 Initial Investigation Debugging HLSL shader setup and combined image samplers Examining NVRHI (rendering abstraction) sampler configuration Discovering samplers are set to linear filtering but not working 45:00 Shader Experimentation Testing GLSL vs HLSL shader approaches Converting imgui shader from HLSL to GLSL to rule out shader issues Discovering mysterious register offset issues (samplers at binding 128 vs 0) 1:00:00 Major Breakthrough Discovering NVRHI uses register offsets (128 for samplers, 0 for textures) Successfully fixing texture filtering by adjusting binding locations Explaining how DirectX/HLSL register types translate to Vulkan bindings 1:30:00 Texture State Management Investigating why textures appear as "undefined" in RenderDoc Discovering issues with MIP level generation causing rendering problems Fixing texture state tracking and permanent vs transient state management 2:00:00 State Tracking Deep Dive Understanding NVRHI's command list state tracking system Learning difference between permanent texture states and per-frame transitions Implementing proper initial state management for textures 2:15:00 Final Texture Fixes Setting up proper texture creation with keep_initial_state flags Resolving all "undefined" texture issues in debugging tools Adding debug names to textures for better debugging experience 2:30:00 End: UI Text Rendering Fixing missing text labels in content browser Debugging ImGui layout issues causing text to not render Resolving layout problems by removing problematic suspend/resume layout calls Stream Summary by Claude Sonnet 4