Validation error in shadow mapping sample

[BinaryCat17]

I ran into this problem when I created shadow maps in my project. My command buffers are rebuilt every frame, so this error constantly appears. I decided to run examples and found that there is the same problem.

Error :
VUID-VkWriteDescriptorSet-descriptorType-01403(ERROR / SPEC): msgNum: 0 - vkUpdateDescriptorSets() failed write update validation for Descriptor Set 0x27 with error: Write update to VkDescriptorSet 0x27 allocated with VkDescriptorSetLayout 0x17 binding #2 failed with error message: Attempted write update to combined image sampler descriptor failed due to: Descriptor update with descriptorType VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER is being updated with invalid imageLayout VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL. Allowed layouts are: VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, VK_IMAGE_LAYOUT_GENERAL. The Vulkan spec states: If descriptorType is VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE or VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, the imageLayout member of each element of pImageInfo must be a member of the list given in Sampled Image or Combined Image Sampler, corresponding to its type (https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VUID-VkWriteDescriptorSet-descriptorType-01403)

[JSandusky]

@ComradeStalin17 I ran into the same thing, I cludged around it by mashing the VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT into a marker to make Device::CreateImage in Device.cpp construct the depth image differently:

// Determine a "default" image layout based on the usage.  This default image layout will be assumed during command buffer recording.
        // Ordering of conditional statements below determine image layout precedence.
        // Example: When usage is SAMPLED_BIT, that takes precendence over the image being used as a color attachment or for transfer operations.
        auto usage = pCreateInfo->usage;
        VkImageLayout defaultLayout = imageCreateInfo.initialLayout;
        if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT) defaultLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
        else if (usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) {
            if (usage & VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT) // use input-attachment bit as a flag
                defaultLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL;
            else
                defaultLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
        }

Same deal for color attachments. Though I initially used the sampled bit instead of input_attachment bit, that messed with most of my other render-targets so I had to use the sketchier bit.