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Fix Vulkan Unsupported Composite Alpha#875

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RobLoach merged 2 commits intoImmediate-Mode-UI:masterfrom
ZvRzyan18:swapchain_creation
Feb 7, 2026
Merged

Fix Vulkan Unsupported Composite Alpha#875
RobLoach merged 2 commits intoImmediate-Mode-UI:masterfrom
ZvRzyan18:swapchain_creation

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@ZvRzyan18 ZvRzyan18 commented Jan 21, 2026

error msg

validation layer: vkCreateSwapchainKHR(): pCreateInfo->compositeAlpha (VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR) is not supported, support values are:
  VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR
.
The Vulkan spec states: compositeAlpha must be one of the bits present in the supportedCompositeAlpha member of the VkSurfaceCapabilitiesKHR structure returned by vkGetPhysicalDeviceSurfaceCapabilitiesKHR for the surface ([https://docs.vulkan.org/spec/latest/chapters/VK_KHR_surface/wsi.html#VUID-VkSwapchainCreateInfoKHR-compositeAlpha-01280](https://docs.vulkan.org/spec/latest/chapters/VK_KHR_surface/wsi.html?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExVkhJc2VjUlBkTGdnQ2I0RHNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR7O9CvwOc2VweWsMwVI-IYVImUeiXLEsXqpJTVBH-GwGBvQ92E_rcdpNit-cA_aem_-2_u3jxAqLAveBiosX0y5w#VUID-VkSwapchainCreateInfoKHR-compositeAlpha-01280))

RobLoach
RobLoach approved these changes Feb 3, 2026
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Seems to be working here. Good to go?

@RobLoach RobLoach merged commit 4c8faf3 into Immediate-Mode-UI:master Feb 7, 2026
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