There are certain limitations of our current MSAA implementation which may impact the quality of the output image in more detailed scenes. For example, we're currently not solving potential problems caused by shader aliasing, i.e. MSAA only smoothens out the edges of geometry but not the interior filling. This may lead to a situation when you get a smooth polygon rendered on screen but the applied texture will still look aliased if it contains high contrasting colors. One way to approach this problem is to enable [Sample Shading](https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#primsrast-sampleshading) which will improve the image quality even further, though at an additional performance cost:

void createLogicalDevice() {

...

deviceFeatures.sampleRateShading = VK_TRUE; // enable sample shading feature for the device

...

}

void createGraphicsPipeline() {

...

multisampling.sampleShadingEnable = VK_TRUE; // enable sample shading in the pipeline

multisampling.minSampleShading = .2f; // min fraction for sample shading; closer to one is smoother

...

}

In this example we'll leave sample shading disabled but in certain scenarios the quality improvement may be noticeable: