{
  "$type": "site.standard.document",
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  "path": "/t/an-attempt-at-vulkan/49433?page=2#post_40",
  "publishedAt": "2026-03-25T06:00:30.000Z",
  "site": "https://hub.jmonkeyengine.org",
  "tags": [
    "github.com/LWJGL/lwjgl3-demos",
    "src/org/lwjgl/demo/vulkan/ColoredRotatingQuadDemo.java",
    "2cd4a62b0",
    "@link",
    "@author"
  ],
  "textContent": "I need some help.\n\n\n    3月 25, 2026 1:22:40 下午 com.jme3.renderer.vulkan.runtime.VulkanRuntimeLifecycle initWindow\n    信息: [Vulkan] window framebuffer size = 1920 x 1080\n    3月 25, 2026 1:22:40 下午 com.jme3.renderer.vulkan.runtime.VulkanRuntimeLifecycle initWindow\n    信息: [Vulkan] settings size (logical) = 1920 x 1080\n    [Vulkan] Validation layer enabled: VK_LAYER_KHRONOS_validation\n    #\n    # A fatal error has been detected by the Java Runtime Environment:\n    #\n    #  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffd5e2a3020, pid=26408, tid=21308\n    #\n    # JRE version: OpenJDK Runtime Environment Zulu17.42+19-CA (17.0.7+7) (build 17.0.7+7-LTS)\n    # Java VM: OpenJDK 64-Bit Server VM Zulu17.42+19-CA (17.0.7+7-LTS, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)\n    # Problematic frame:\n    # C  [msvcp140.dll+0x13020]\n    #\n    # No core dump will be written. Minidumps are not enabled by default on client versions of Windows\n    #\n    # An error report file with more information is saved as:\n    # F:\\JME\\jmonkeyengine\\jme3-lwjgl3\\hs_err_pid26408.log\n    #\n    # If you would like to submit a bug report, please visit:\n    #   http://www.azul.com/support/\n    # The crash happened outside the Java Virtual Machine in native code.\n    # See problematic frame for where to report the bug.\n    #\n\n\nWhen I open the validation layer of lwjgl-vulkan, this problem occurs.\n\ngithub.com/LWJGL/lwjgl3-demos\n\n#### src/org/lwjgl/demo/vulkan/ColoredRotatingQuadDemo.java\n\n2cd4a62b0\n\n\n\n\n\n\n        26. import org.lwjgl.vulkan.*;\n\n\n        27.\n\n        28. /**\n\n\n        29.  * Renders a simple rotating colored quad on a cornflower blue background on a GLFW window with Vulkan.\n\n\n        30.  * <p>\n\n\n        31.  * This is like the {@link ColoredTriangleDemo}, but adds an additional rotation.\n\n\n        32.  * Do a diff between those two classes to see what's new.\n\n\n        33.  *\n\n\n        34.  * @author Kai Burjack\n\n\n        35.  */\n\n\n        36. public class ColoredRotatingQuadDemo {\n\n\n        37.     private static boolean debug = System.getProperty(\"NDEBUG\") == null;\n\n\n        38.\n\n        39.     private static String[] layers = {\n\n\n        40. \t\t\t\"VK_LAYER_LUNARG_standard_validation\",\n\n\n        41. \t\t\t\"VK_LAYER_KHRONOS_validation\",\n\n\n        42.     };\n\n\n        43.\n\n        44.     /**\n\n\n        45.      * This is just -1L, but it is nicer as a symbolic constant.\n\n\n        46.      */\n\n\n\n\n\nIf anyone is willing to help, please try running this demo and enable the validation layer to see if it also triggers a null pointer crash.\n\nI tried to run the compiled shader, but it seems the shader returned an error code -4 and exited. I’m not sure what -4 means. I need to enable the Vulkan validation layer to locate the issue, but when I turn on the validation layer, the program triggers this null pointer error.",
  "title": "An attempt at Vulkan"
}