LineExample renders triangles instead of lines

[kephale]

Describe the bug

When I run LineExample on the current version of main with azul zulu 21, the lines are rendered as triangles.

I also get this output:

[main] INFO LineExample - Started application as PID 84806 on MACOSX/ARM64
[main] INFO VulkanRenderer - Loaded Deferred Shading (Deferred Shading, with HDR postprocessing and FXAA)
2024-02-02 20:35:08.762 java[84806:801407] WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.
[main] INFO VulkanRenderer - Creating Vulkan instance with extensions VK_MVK_macos_surface,VK_KHR_surface,VK_KHR_surface,VK_EXT_metal_surface and layers 
[main] INFO VulkanRenderer - Available special-purpose swapchains are: SwingSwapchain, HeadlessSwapchain, OpenGLSwapchain
[main] INFO Companion - Physical devices: 
[main] INFO Companion -   0: 🍎 Apple M1 Pro (IntegratedGPU, driver version 0.2.2014, Vulkan API 1.2.261) (selected)
[main] INFO VulkanDevice - Creating 1 distinct queue groups
[main] INFO VulkanRenderer - Using swapchain SwingSwapchain
[main] INFO VulkanRenderer - Renderer initialisation complete.
[main] INFO InputHandler - No custom key configuration found, using default keybindings.
[main] INFO VulkanRenderer - Recreating Swapchain at frame 0 (SwingSwapchain)
[main] INFO SwingSwapchain - Present queue is 0, graphics queue is 0
[main] INFO SwingSwapchain - Selected present mode: VK_PRESENT_MODE_FIFO_KHR with 3 images
[main] INFO Companion - Creating render framebuffer GeometryBuffer for pass Scene (1024x1024)
[main] INFO Companion -  + attachment NormalsMaterial, RGBA_Float16
[main] INFO Companion -  + attachment DiffuseAlbedo, RGBA_UInt8
[main] INFO Companion -  + attachment ZBuffer, Depth32
[main] INFO Companion - Creating render framebuffer AOTemp1 for pass AO (1024x1024)
[main] INFO Companion -  + attachment Occlusion, RGBA_UInt8
[main] INFO Companion - Creating render framebuffer AOTemp2 for pass AOBlurV (1024x1024)
[main] INFO Companion -  + attachment Occlusion, RGBA_UInt8
[main] INFO Companion - Creating render framebuffer AOBuffer for pass AOBlurH (512x512)
[main] INFO Companion -  + attachment Occlusion, RGBA_UInt8
[main] INFO Companion - Creating render framebuffer ForwardBuffer for pass DeferredLighting (1024x1024)
[main] INFO Companion -  + attachment Color, RGBA_Float16
[main] INFO Companion - Creating render framebuffer HDRBuffer for pass ForwardShading (1024x1024)
[main] INFO Companion -  + attachment Color, RGBA_Float16
[main] INFO Companion -  + attachment Depth, Depth32
[main] INFO Companion - Creating render framebuffer FXAABuffer for pass HDR (1024x1024)
[main] INFO Companion -  + attachment Color, RGBA_UInt8
[main] INFO VulkanRenderer - Scene initialization started.
[main] INFO VulkanRenderer - Scene initialization complete, took 37.904675 ms.
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[Thread-0] INFO LineExample - Full startup took 3159ms
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline
[main] ERROR VulkanPipeline - Pipeline VulkanPipeline (LINE -> 0x29E840200, TRIANGLE_STRIP -> 0x29D8C7000, POINTS -> 0x29E835200, POLYGON -> 0x119353000, TRIANGLES -> 0x29D8A6E00) does not contain a fitting pipeline for LINE_STRIP_ADJACENCY, return triangle pipeline

Desktop (please complete the following information):

• OS: macos 14.3
• Browser lynx

Additional context

This was first reported in https://github.com/scenerygraphics/sciview/issues/467

[skalarproduktraum]

This is not directly fixable, macOS does not support geometry shaders.

[kephale]

LOL, but should we pull out the Line demo from sciview then?

[skalarproduktraum]

Either that, or fall back to the regular line primitive.

[kephale]

Ok, I'll just pull it from sciview. This would need to be fixed in Line in scenery otherwise. Plus we have Line3D in sciview which is what we use for SNT anyway.