Use USHORT_MAX value for jump flood seed attachment image clear color.

Author: stripe2933

impl/vulkan/Frame.cpp

@@ -1549,7 +1549,7 @@ void vk_gltf_viewer::vulkan::Frame::recordScenePrepassCommands(vk::CommandBuffer
             vku::lvalue(vk::RenderingAttachmentInfo {
                 *viewport->hoveringNodeJumpFloodSeedAttachmentGroup.seedImageView, vk::ImageLayout::eColorAttachmentOptimal,
                 {}, {}, {},
-                vk::AttachmentLoadOp::eClear, vk::AttachmentStoreOp::eStore,
+                vk::AttachmentLoadOp::eClear, vk::AttachmentStoreOp::eStore, vk::ClearColorValue { 65535U, 65535U, 0U, 0U },
             }),
             &vku::lvalue(vk::RenderingAttachmentInfo {
                 *viewport->hoveringNodeJumpFloodSeedAttachmentGroup.depthImageView, vk::ImageLayout::eDepthStencilAttachmentOptimal,
@@ -1591,7 +1591,7 @@ void vk_gltf_viewer::vulkan::Frame::recordScenePrepassCommands(vk::CommandBuffer
             vku::lvalue(vk::RenderingAttachmentInfo {
                 *viewport->selectedNodeJumpFloodSeedAttachmentGroup.seedImageView, vk::ImageLayout::eColorAttachmentOptimal,
                 {}, {}, {},
-                vk::AttachmentLoadOp::eClear, vk::AttachmentStoreOp::eStore,
+                vk::AttachmentLoadOp::eClear, vk::AttachmentStoreOp::eStore, vk::ClearColorValue { 65535U, 65535U, 0U, 0U },
             }),
             &vku::lvalue(vk::RenderingAttachmentInfo {
                 *viewport->selectedNodeJumpFloodSeedAttachmentGroup.depthImageView, vk::ImageLayout::eDepthStencilAttachmentOptimal,