Fixing typos and adding more details

docs/vkrt_tuto_further.md.html

@@ -91,7 +91,7 @@ Replacing if/else by callable shaders. The code to execute the lighting is done
 
 ## [Ray Query](vkrt_tuto_rayquery.md.htm)
 
-Inkoking ray interestion queries directly from the fragment shader to cast shadow rays.
+Invoking ray intersection queries directly from the fragment shader to cast shadow rays.
 
 * Ray tracing directly from the fragment shader
 

docs/vkrt_tuto_instances.md.htm

@@ -202,7 +202,7 @@ Finally, here is the Vulkan Device Memory view from Nsight Graphics:
 
 We can also modify the code to use the [Vulkan Memory Allocator](https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator) from AMD.
 
-Download [vk_mem_alloc.h](https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator/blob/master/src/vk_mem_alloc.h) from GitHub and add this to the `current` folder.
+Download [vk_mem_alloc.h](https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator/blob/master/src/vk_mem_alloc.h) from GitHub and add this to the `shared_sources` folder.
 
 There is already a variation of the allocator for VMA, which is located under [nvpro-samples](https://github.com/nvpro-samples/shared_sources/tree/master/nvvkpp). This allocator has the same simple interface as the `AllocatorDedicated` class in `allocator_dedicated_vkpp.hpp`, but will use VMA for memory management.
 
@@ -249,8 +249,7 @@ In `setup()`
   VmaAllocatorCreateInfo allocatorInfo = {};
   allocatorInfo.physicalDevice         = physicalDevice;
   allocatorInfo.device                 = device;
-  allocatorInfo.flags |=
+  allocatorInfo.flags                  = VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT;
-      VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT | VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT;
   vmaCreateAllocator(&allocatorInfo, &m_vmaAllocator);
   m_alloc.init(device, m_vmaAllocator);
 ~~~~

docs/vkrt_tuto_jitter_cam.md.htm

@@ -186,6 +186,10 @@ At the begining of `HelloVulkan::raytrace`, call
 
 The application will now antialias the image when ray tracing is enabled.
 
+Adding `resetFrame()` in `HelloVulkan::onResize()` will also take care of clearing the buffer while resizing the window.
+
+
+
 ## Resetting Frame on UI Change
 
 The frame number should also be reset when any parts of the scene change, such as the light direction or the background color. In `renderUI()` in `main.cpp`, check for UI changes and reset the frame number when they happen:

docs/vkrt_tuto_manyhits.md.htm

@@ -185,6 +185,10 @@ void main()
 }
 ~~~~
 
+!!! Note 
+    Adding a new shader requires to rerun CMake to added to the project compilation system.
+
+
 ## `main.cpp`
 
 In `main`, after we set which hit group an instance will use, we can add the data we want to set through the shader record.

docs/vkrt_tutorial.md.htm

@@ -1601,6 +1601,7 @@ tracing descriptor set. Add the binding of the material buffer and the array of
 ```` C
 layout(binding = 1, set = 1, scalar) buffer MatColorBufferObject { WaveFrontMaterial m[]; } materials[];
 layout(binding = 3, set = 1) uniform sampler2D textureSamplers[];
+layout(binding = 4, set = 1)  buffer MatIndexColorBuffer { int i[]; } matIndex[];
 ````
 
 The declaration of the material is the same as that used for the rasterizer and is defined in