Added Vulkan examples sources!

data/shaders/shadowmap/cubemapdisplay.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 shadowCubeMap;
+
+layout (location = 0) in vec3 inUVW;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	float dist = length(texture(shadowCubeMap, inUVW).rgb) * 0.005;
+	outFragColor = vec4(vec3(dist), 1.0);
+}

data/shaders/shadowmap/cubemapdisplay.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 view;
+	mat4 model;
+} ubo;
+
+layout (location = 0) out vec3 outUVW;
+
+void main() 
+{
+	outUVW = inPos;
+	gl_Position = ubo.projection * ubo.model * vec4(inPos.xyz, 1.0);
+}
+

data/shaders/shadowmap/generate-spirv.bat

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+glslangvalidator -V offscreen.vert -o offscreen.vert.spv
+glslangvalidator -V offscreen.frag -o offscreen.frag.spv
+glslangvalidator -V scene.vert -o scene.vert.spv
+glslangvalidator -V scene.frag -o scene.frag.spv
+glslangvalidator -V cubemapdisplay.vert -o cubemapdisplay.vert.spv
+glslangvalidator -V cubemapdisplay.frag -o cubemapdisplay.frag.spv
+

data/shaders/shadowmap/offscreen.frag

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) out float outFragColor;
+
+layout (location = 0) in vec4 inPos;
+layout (location = 1) in vec3 inLightPos;
+
+void main() 
+{
+	// Store distance to light as 32 bit float value
+    vec3 lightVec = inPos.xyz - inLightPos;
+    outFragColor = length(lightVec);
+}

data/shaders/shadowmap/offscreen.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 = 0) out vec4 outPos;
+layout (location = 1) out vec3 outLightPos;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 view; 
+	mat4 model;
+	vec4 lightPos;
+} ubo;
+
+layout(push_constant) uniform PushConsts 
+{
+	mat4 view;
+} pushConsts;
+ 
+void main()
+{
+	gl_Position = ubo.projection * pushConsts.view * ubo.model * vec4(inPos, 1.0);
+
+	outPos = vec4(inPos, 1.0);	
+	outLightPos = ubo.lightPos.xyz; 
+}

data/shaders/shadowmap/scene.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 shadowCubeMap;
+
+layout (location = 0) in vec3 inNormal;
+layout (location = 1) in vec3 inColor;
+layout (location = 2) in vec3 inEyePos;
+layout (location = 3) in vec3 inLightVec;
+layout (location = 4) in vec3 inWorldPos;
+layout (location = 5) in vec3 inLightPos;
+
+layout (location = 0) out vec4 outFragColor;
+
+#define EPSILON 0.15
+#define SHADOW_OPACITY 0.5
+
+void main() 
+{
+	// Lighting
+	vec3 N = normalize(inNormal);
+	vec3 L = normalize(vec3(1.0));	
+	
+	vec3 Eye = normalize(-inEyePos);
+	vec3 Reflected = normalize(reflect(-inLightVec, inNormal)); 
+
+	vec4 IAmbient = vec4(vec3(0.05), 1.0);
+	vec4 IDiffuse = vec4(1.0) * max(dot(inNormal, inLightVec), 0.0);
+
+	outFragColor = vec4(IAmbient + IDiffuse * vec4(inColor, 1.0));		
+		
+	// Shadow
+	vec3 lightVec = inWorldPos - inLightPos;
+    float sampledDist = texture(shadowCubeMap, lightVec).r;
+    float dist = length(lightVec);
+
+	// Check if fragment is in shadow
+    float shadow = (dist <= sampledDist + EPSILON) ? 1.0 : SHADOW_OPACITY;
+    		
+	outFragColor.rgb *= shadow;
+}

data/shaders/shadowmap/scene.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 = 2) in vec3 inColor;
+layout (location = 3) in vec3 inNormal;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 view;
+	mat4 model;
+	vec4 lightPos;
+} ubo;
+
+layout (location = 0) out vec3 outNormal;
+layout (location = 1) out vec3 outColor;
+layout (location = 2) out vec3 outEyePos;
+layout (location = 3) out vec3 outLightVec;
+layout (location = 4) out vec3 outWorldPos;
+layout (location = 5) out vec3 outLightPos;
+
+void main() 
+{
+	outColor = inColor;
+	outNormal = inNormal;
+	
+	gl_Position = ubo.projection * ubo.view * ubo.model * vec4(inPos.xyz, 1.0);
+	outEyePos = vec3(ubo.model * vec4(inPos, 1.0f));
+	outLightVec = normalize(ubo.lightPos.xyz - inPos.xyz);	
+	outWorldPos = inPos;
+	
+	outLightPos = ubo.lightPos.xyz;
+}
+