Fixing several validation related issues

data/shaders/glsl/multiview/multiview.vert

@@ -19,11 +19,6 @@ layout (binding = 0) uniform UBO
 	vec4 lightPos;
 } ubo;
 
-out gl_PerVertex
-{
-	vec4 gl_Position;
-};
-
 void main() 
 {
 	outColor = inColor;

data/shaders/glsl/multiview/viewdisplay.vert

@@ -2,11 +2,6 @@
 
 layout (location = 0) out vec2 outUV;
 
-out gl_PerVertex
-{
-	vec4 gl_Position;
-};
-
 void main() 
 {
 	outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);

examples/multiview/multiview.cpp

@@ -49,6 +49,8 @@ public:
 
 	VkPipeline viewDisplayPipelines[2];
 
+	VkPhysicalDeviceMultiviewFeaturesKHR physicalDeviceMultiviewFeatures{};
+
 	// Camera and view properties
 	float eyeSeparation = 0.08f;
 	const float focalLength = 0.5f;
@@ -69,6 +71,11 @@ public:
 
 		// Reading device properties and features for multiview requires VK_KHR_get_physical_device_properties2 to be enabled
 		enabledInstanceExtensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
+
+		// Enable required extension features
+		physicalDeviceMultiviewFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHR;
+		physicalDeviceMultiviewFeatures.multiview = VK_TRUE;
+		deviceCreatepNextChain = &physicalDeviceMultiviewFeatures;
 	}
 
 	~VulkanExample()

examples/tessellation/tessellation.cpp

@@ -93,6 +93,9 @@ public:
 		else {
 			wireframe = false;
 		}
+		if (deviceFeatures.samplerAnisotropy) {
+			enabledFeatures.samplerAnisotropy = VK_TRUE;
+		}
 	}
 
 	void buildCommandBuffers()

examples/texturecubemap/texturecubemap.cpp

@@ -84,6 +84,14 @@ public:
 		uniformBuffers.skybox.destroy();
 	}
 
+	// Enable physical device features required for this example
+	virtual void getEnabledFeatures()
+	{
+		if (deviceFeatures.samplerAnisotropy) {
+			enabledFeatures.samplerAnisotropy = VK_TRUE;
+		}
+	}
+
 	void loadCubemap(std::string filename, VkFormat format, bool forceLinearTiling)
 	{
 		ktxResult result;