Added Vulkan examples sources!

data/shaders/cubemap/generate-spirv.bat

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+glslangvalidator -V reflect.vert -o reflect.vert.spv
+glslangvalidator -V reflect.frag -o reflect.frag.spv
+glslangvalidator -V skybox.vert -o skybox.vert.spv
+glslangvalidator -V skybox.frag -o skybox.frag.spv
+
+

data/shaders/cubemap/reflect.frag

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (binding = 1) uniform samplerCube samplerColor;
+
+layout (location = 0) in vec3 inEyePos;
+layout (location = 1) in vec3 inEyeNormal;
+layout (location = 2) in mat4 inView;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	vec3 I = normalize (inEyePos);
+	vec3 R = reflect (I, normalize(inEyeNormal));
+
+	R = vec3(inverse (inView) * vec4(R, 0.0));
+	
+	outFragColor = texture(samplerColor, R);
+}

data/shaders/cubemap/reflect.vert

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) in vec3 inPos;
+layout (location = 1) in vec3 inNormal;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 model;
+} ubo;
+
+layout (location = 0) out vec3 outEyePos;
+layout (location = 1) out vec3 outEyeNormal;
+layout (location = 2) out mat4 outView;
+
+void main() 
+{
+	gl_Position = ubo.projection * ubo.model * vec4(inPos.xyz, 1.0);
+	
+	outEyePos = vec3(ubo.model * vec4(inPos, 1.0));
+	outEyeNormal = vec3(ubo.model * vec4(inNormal, 0.0));	
+	
+	outView = ubo.model;
+}

data/shaders/cubemap/skybox.frag

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (binding = 1) uniform samplerCube samplerCubeMap;
+
+layout (location = 0) in vec3 inUVW;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	outFragColor = texture(samplerCubeMap, inUVW);
+}

data/shaders/cubemap/skybox.vert

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) in vec3 inPos;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 model;
+} ubo;
+
+layout (location = 0) out vec3 outUVW;
+
+void main() 
+{
+	outUVW = inPos;
+	gl_Position = ubo.projection * ubo.model * vec4(inPos.xyz, 1.0);
+}