Backends: Vulkan: Added support for specifying multisample count. (#2705, #2706)
diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 7c251b3..acc7bef 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -36,6 +36,9 @@
Other Changes:
- Backends: DX11: Fixed GSGetShader() call not passing an initialized instance count,
would generally make the debug layer complain (Added in 1.72).
+- Backends: Vulkan: Added support for specifying multisample count.
+ Set ImGui_ImplVulkan_InitInfo::MSAASamples to one of the VkSampleCountFlagBits values
+ to use, default is non-multisampled as before. (#2705, #2706) [@vilya]
-----------------------------------------------------------------------
diff --git a/examples/imgui_impl_vulkan.cpp b/examples/imgui_impl_vulkan.cpp
index b55cb19..9d977f0 100644
--- a/examples/imgui_impl_vulkan.cpp
+++ b/examples/imgui_impl_vulkan.cpp
@@ -22,6 +22,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
+// 2019-08-01: Vulkan: Added support for specifying multisample count. Set ImGui_ImplVulkan_InitInfo::MSAASamples to one of the VkSampleCountFlagBits values to use, default is non-multisampled as before.
// 2019-05-29: Vulkan: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: Vulkan: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2019-04-04: *BREAKING CHANGE*: Vulkan: Added ImageCount/MinImageCount fields in ImGui_ImplVulkan_InitInfo, required for initialization (was previously a hard #define IMGUI_VK_QUEUED_FRAMES 2). Added ImGui_ImplVulkan_SetMinImageCount().
@@ -721,7 +722,10 @@
VkPipelineMultisampleStateCreateInfo ms_info = {};
ms_info.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
- ms_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
+ if (v->MSAASamples != 0)
+ ms_info.rasterizationSamples = v->MSAASamples;
+ else
+ ms_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
VkPipelineColorBlendAttachmentState color_attachment[1] = {};
color_attachment[0].blendEnable = VK_TRUE;
diff --git a/examples/imgui_impl_vulkan.h b/examples/imgui_impl_vulkan.h
index 80356b9..f2bf929 100644
--- a/examples/imgui_impl_vulkan.h
+++ b/examples/imgui_impl_vulkan.h
@@ -37,6 +37,7 @@
VkDescriptorPool DescriptorPool;
uint32_t MinImageCount; // >= 2
uint32_t ImageCount; // >= MinImageCount
+ VkSampleCountFlagBits MSAASamples; // >= VK_SAMPLE_COUNT_1_BIT
const VkAllocationCallbacks* Allocator;
void (*CheckVkResultFn)(VkResult err);
};
