init

shaders/hdr/glsl/bloom.frag

@@ -0,0 +1,79 @@
+#version 450
+/* Copyright (c) 2019-2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+layout (binding = 0) uniform sampler2D samplerColor0;
+layout (binding = 1) uniform sampler2D samplerColor1;
+
+layout (location = 0) in vec2 inUV;
+
+layout (location = 0) out vec4 outColor;
+
+layout (constant_id = 0) const int dir = 0;
+
+void main(void)
+{
+	// From the OpenGL Super bible
+	const float weights[] = float[](0.0024499299678342,
+									0.0043538453346397,
+									0.0073599963704157,
+									0.0118349786570722,
+									0.0181026699707781,
+									0.0263392293891488,
+									0.0364543006660986,
+									0.0479932050577658,
+									0.0601029809166942,
+									0.0715974486241365,
+									0.0811305381519717,
+									0.0874493212267511,
+									0.0896631113333857,
+									0.0874493212267511,
+									0.0811305381519717,
+									0.0715974486241365,
+									0.0601029809166942,
+									0.0479932050577658,
+									0.0364543006660986,
+									0.0263392293891488,
+									0.0181026699707781,
+									0.0118349786570722,
+									0.0073599963704157,
+									0.0043538453346397,
+									0.0024499299678342);
+
+
+	const float blurScale = 0.003;
+	const float blurStrength = 1.0;
+
+	float ar = 1.0;
+	// Aspect ratio for vertical blur pass
+	if (dir == 1)
+	{
+		vec2 ts = textureSize(samplerColor1, 0);
+		ar = ts.y / ts.x;
+	}
+
+	vec2 P = inUV.yx - vec2(0, (weights.length() >> 1) * ar * blurScale);
+
+	vec4 color = vec4(0.0);
+	for (int i = 0; i < weights.length(); i++)
+	{
+		vec2 dv = vec2(0.0, i * blurScale) * ar;
+		color += texture(samplerColor1, P + dv) * weights[i] * blurStrength;
+	}
+
+	outColor = color;
+}

shaders/hdr/glsl/bloom.vert

@@ -0,0 +1,30 @@
+#version 450
+/* Copyright (c) 2019-2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+layout (location = 0) out vec2 outUV;
+
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
+void main() 
+{
+	outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
+	gl_Position = vec4(outUV * 2.0f - 1.0f, 0.0f, 1.0f);
+}

shaders/hdr/glsl/composition.frag

@@ -0,0 +1,29 @@
+#version 450
+/* Copyright (c) 2019-2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+layout (binding = 0) uniform sampler2D samplerColor0;
+layout (binding = 1) uniform sampler2D samplerColor1;
+
+layout (location = 0) in vec2 inUV;
+
+layout (location = 0) out vec4 outColor;
+
+void main() 
+{
+	outColor = texture(samplerColor0, inUV);
+}

shaders/hdr/glsl/composition.vert

@@ -0,0 +1,30 @@
+#version 450
+/* Copyright (c) 2019-2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+layout (location = 0) out vec2 outUV;
+
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
+void main() 
+{
+	outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
+	gl_Position = vec4(outUV * 2.0f - 1.0f, 0.0f, 1.0f);
+}

shaders/hdr/glsl/gbuffer.frag

@@ -0,0 +1,115 @@
+#version 450
+/* Copyright (c) 2019-2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+layout (binding = 1) uniform samplerCube samplerEnvMap;
+
+layout (location = 0) in vec3 inUVW;
+layout (location = 1) in vec3 inPos;
+layout (location = 2) in vec3 inNormal;
+layout (location = 3) in vec3 inViewVec;
+layout (location = 4) in vec3 inLightVec;
+
+layout (location = 0) out vec4 outColor0;
+layout (location = 1) out vec4 outColor1;
+
+layout (constant_id = 0) const int type = 0;
+
+#define PI 3.1415926
+#define TwoPI (2.0 * PI)
+
+layout (binding = 0) uniform UBOCamera {
+	mat4 projection;
+	mat4 modelview;
+	mat4 skybox_modelview;
+	mat4 inverse_modelview;
+	float modelscale;
+} uboCamera;
+
+layout (binding = 2) uniform UBO {
+	float exposure;
+} ubo;
+
+void main() 
+{
+	vec4 color;
+	vec3 wcNormal;
+
+	switch (type) {
+		case 0: // Skybox			
+			{
+				vec3 normal = normalize(inUVW);
+				color = texture(samplerEnvMap, normal);
+			}
+			break;
+		
+		case 1: // Reflect
+			{
+				vec3 wViewVec = mat3(uboCamera.inverse_modelview) * normalize(inViewVec);
+				vec3 normal = normalize(inNormal);
+				vec3 wNormal = mat3(uboCamera.inverse_modelview) * normal;
+
+				float NdotL = max(dot(normal, inLightVec), 0.0);
+
+				vec3 eyeDir = normalize(inViewVec);		
+				vec3 halfVec = normalize(inLightVec + eyeDir);
+				float NdotH = max(dot(normal, halfVec), 0.0); 
+				float NdotV = max(dot(normal, eyeDir), 0.0); 
+				float VdotH = max(dot(eyeDir, halfVec), 0.0);
+		
+				// Geometric attenuation
+				float NH2 = 2.0 * NdotH;
+				float g1 = (NH2 * NdotV) / VdotH;
+				float g2 = (NH2 * NdotL) / VdotH;
+				float geoAtt = min(1.0, min(g1, g2));
+
+				const float F0 = 0.6;
+				const float k = 0.2;
+
+				// Fresnel (schlick approximation)
+				float fresnel = pow(1.0 - VdotH, 5.0);
+				fresnel *= (1.0 - F0);
+				fresnel += F0;
+		
+				// Note: clamp to zero to mitigate any divide by zero
+				float spec = max((fresnel * geoAtt) / (NdotV * NdotL * 3.14), 0.0);
+ 
+				color = texture(samplerEnvMap, reflect(-wViewVec, wNormal));	 	
+
+				color = vec4(color.rgb * NdotL * (k + spec * (1.0 - k)), 1.0);
+			}
+			break;
+
+		case 2: // Refract			
+			{
+				vec3 wViewVec = mat3(uboCamera.inverse_modelview) * normalize(inViewVec);
+				vec3 wNormal = mat3(uboCamera.inverse_modelview) * inNormal;
+				color = texture(samplerEnvMap, refract(-wViewVec, wNormal, 1.0/1.6));		
+			}
+			break;
+	}
+
+
+	// Color with manual exposure into attachment 0
+	outColor0.rgb = vec3(1.0) - exp(-color.rgb * ubo.exposure);
+
+	// Bright parts for bloom into attachment 1
+	float l = dot(outColor0.rgb, vec3(0.2126, 0.7152, 0.0722));
+	float threshold = 0.75;
+	outColor1.rgb = (l > threshold) ? outColor0.rgb : vec3(0.0);
+	outColor1.a = 1.0;
+}

shaders/hdr/glsl/gbuffer.vert

@@ -0,0 +1,57 @@
+#version 450
+/* Copyright (c) 2019-2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+layout (location = 0) in vec3 inPos;
+layout (location = 1) in vec3 inNormal;
+
+layout (constant_id = 0) const int type = 0;
+
+layout (binding = 0) uniform UBO {
+	mat4 projection;
+	mat4 modelview;
+	mat4 skybox_modelview;
+	mat4 inverse_modelview;
+	float modelscale;
+} ubo;
+
+layout (location = 0) out vec3 outUVW;
+layout (location = 1) out vec3 outPos;
+layout (location = 2) out vec3 outNormal;
+layout (location = 3) out vec3 outViewVec;
+layout (location = 4) out vec3 outLightVec;
+
+void main() 
+{
+	outUVW = inPos;
+
+	switch(type) {
+		case 0: // Skybox
+			outPos = vec3(mat3(ubo.skybox_modelview) * inPos);
+			gl_Position = vec4(ubo.projection * vec4(outPos, 1.0));
+			break;
+		case 1: // Object
+			outPos = vec3(ubo.modelview * vec4(inPos * ubo.modelscale, 1.0));
+			gl_Position = ubo.projection * ubo.modelview * vec4(inPos.xyz * ubo.modelscale, 1.0);
+			break;
+	}
+	outNormal = mat3(ubo.modelview) * inNormal;	
+	
+	vec3 lightPos = vec3(0.0f, -5.0f, 5.0f);
+	outLightVec = lightPos.xyz - outPos.xyz;
+	outViewVec = -outPos.xyz;		
+}

shaders/hdr/hlsl/bloom.frag.hlsl

@@ -0,0 +1,77 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+Texture2D textureColor0 : register(t0);
+SamplerState samplerColor0 : register(s0);
+Texture2D textureColor1 : register(t1);
+SamplerState samplerColor1 : register(s1);
+
+[[vk::constant_id(0)]] const int dir = 0;
+
+float4 main([[vk::location(0)]] float2 inUV : TEXCOORD0) : SV_TARGET
+{
+	// From the OpenGL Super bible
+	const float weights[] = {	0.0024499299678342,
+								0.0043538453346397,
+								0.0073599963704157,
+								0.0118349786570722,
+								0.0181026699707781,
+								0.0263392293891488,
+								0.0364543006660986,
+								0.0479932050577658,
+								0.0601029809166942,
+								0.0715974486241365,
+								0.0811305381519717,
+								0.0874493212267511,
+								0.0896631113333857,
+								0.0874493212267511,
+								0.0811305381519717,
+								0.0715974486241365,
+								0.0601029809166942,
+								0.0479932050577658,
+								0.0364543006660986,
+								0.0263392293891488,
+								0.0181026699707781,
+								0.0118349786570722,
+								0.0073599963704157,
+								0.0043538453346397,
+								0.0024499299678342};
+
+
+	const float blurScale = 0.003;
+	const float blurStrength = 1.0;
+
+	float ar = 1.0;
+	// Aspect ratio for vertical blur pass
+	if (dir == 1)
+	{
+		float2 ts;
+		textureColor1.GetDimensions(ts.x, ts.y);
+		ar = ts.y / ts.x;
+	}
+
+	float2 P = inUV.yx - float2(0, (25 >> 1) * ar * blurScale);
+
+	float4 color = float4(0.0, 0.0, 0.0, 0.0);
+	for (int i = 0; i < 25; i++)
+	{
+		float2 dv = float2(0.0, i * blurScale) * ar;
+		color += textureColor1.Sample(samplerColor1, P + dv) * weights[i] * blurStrength;
+	}
+
+	return color;
+}

shaders/hdr/hlsl/bloom.vert.hlsl

@@ -0,0 +1,30 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] float2 UV : TEXCOORD0;
+};
+
+VSOutput main(uint VertexIndex : SV_VertexID)
+{
+	VSOutput output = (VSOutput)0;
+	output.UV = float2((VertexIndex << 1) & 2, VertexIndex & 2);
+	output.Pos = float4(output.UV * 2.0f - 1.0f, 0.0f, 1.0f);
+	return output;
+}

shaders/hdr/hlsl/composition.frag.hlsl

@@ -0,0 +1,32 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+Texture2D textureColor0 : register(t0);
+SamplerState samplerColor0 : register(s0);
+Texture2D textureColor1 : register(t1);
+SamplerState samplerColor1 : register(s1);
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    [[vk::location(0)]] float2 UV : TEXCOORD0;
+};
+
+float4 main(VSOutput input) : SV_TARGET
+{
+	return textureColor0.Sample(samplerColor0, input.UV);
+}

shaders/hdr/hlsl/composition.vert.hlsl

@@ -0,0 +1,30 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] float2 UV : TEXCOORD0;
+};
+
+VSOutput main(uint VertexIndex : SV_VertexID)
+{
+	VSOutput output = (VSOutput)0;
+	output.UV = float2((VertexIndex << 1) & 2, VertexIndex & 2);
+	output.Pos = float4(output.UV * 2.0f - 1.0f, 0.0f, 1.0f);
+	return output;
+}

shaders/hdr/hlsl/gbuffer.frag.hlsl

@@ -0,0 +1,127 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+TextureCube textureEnvMap : register(t1);
+SamplerState samplerEnvMap : register(s1);
+
+struct VSOutput
+{
+float4 Pos : SV_POSITION;
+[[vk::location(0)]] float3 UVW : TEXCOORD0;
+[[vk::location(1)]] float3 Normal : NORMAL0;
+[[vk::location(2)]] float3 ViewVec : TEXCOORD1;
+[[vk::location(3)]] float3 LightVec : TEXCOORD2;
+};
+
+struct FSOutput
+{
+	float4 Color0 : SV_TARGET0;
+	float4 Color1 : SV_TARGET1;
+};
+
+[[vk::constant_id(0)]] const int type = 0;
+
+#define PI 3.1415926
+#define TwoPI (2.0 * PI)
+
+struct UBOMatrices
+{
+    float4x4 projection;
+    float4x4 modelview;
+    float4x4 skyboxModelview;
+    float4x4 inverseModelView;
+    float modelscale;
+};
+[[vk::binding(0, 0)]]
+ConstantBuffer<UBOMatrices> uboMatrices : register(b0);
+
+struct UBO  {
+	float exposure;
+};
+[[vk::binding(2, 0)]]
+ConstantBuffer<UBO> ubo : register(b2);
+
+FSOutput main(VSOutput input)
+{
+	FSOutput output = (FSOutput)0;
+	float4 color;
+	float3 wcNormal;
+
+	switch (type) {
+		case 0: // Skybox
+			{
+				float3 normal = normalize(input.UVW);
+				color = textureEnvMap.Sample(samplerEnvMap, normal);
+			}
+			break;
+
+		case 1: // Reflect
+			{
+                float3 wViewVec = mul((float3x3) uboMatrices.inverseModelView, normalize(input.ViewVec)).xyz;
+                float3 normal = normalize(input.Normal);
+                float3 wNormal = mul((float3x3) uboMatrices.inverseModelView, normal).xyz;
+
+                float NdotL = max(dot(normal, input.LightVec), 0.0);
+
+                float3 eyeDir = normalize(input.ViewVec);
+                float3 halfVec = normalize(input.LightVec + eyeDir);
+                float NdotH = max(dot(normal, halfVec), 0.0);
+                float NdotV = max(dot(normal, eyeDir), 0.0);
+                float VdotH = max(dot(eyeDir, halfVec), 0.0);
+
+				// Geometric attenuation
+                float NH2 = 2.0 * NdotH;
+                float g1 = (NH2 * NdotV) / VdotH;
+                float g2 = (NH2 * NdotL) / VdotH;
+                float geoAtt = min(1.0, min(g1, g2));
+
+                const float F0 = 0.6;
+                const float k = 0.2;
+
+				// Fresnel (schlick approximation)
+                float fresnel = pow(1.0 - VdotH, 5.0);
+                fresnel *= (1.0 - F0);
+                fresnel += F0;
+
+                float spec = (fresnel * geoAtt) / (NdotV * NdotL * 3.14);
+
+                color = textureEnvMap.Sample(samplerEnvMap, reflect(-wViewVec, wNormal));
+
+                color = float4(color.rgb * NdotL * (k + spec * (1.0 - k)), 1.0);
+            }
+			break;
+
+		case 2: // Refract
+			{
+                float3 wViewVec = mul((float4x3) uboMatrices.inverseModelView, normalize(input.ViewVec)).xyz;
+                float3 wNormal = mul((float4x3) uboMatrices.inverseModelView, input.Normal).xyz;
+				color = textureEnvMap.Sample(samplerEnvMap, refract(-wViewVec, wNormal, 1.0/1.6));
+			}
+			break;
+	}
+
+
+	// Color with manual exposure into attachment 0
+	output.Color0.rgb = float3(1.0, 1.0, 1.0) - exp(-color.rgb * ubo.exposure);
+
+	// Bright parts for bloom into attachment 1
+	float l = dot(output.Color0.rgb, float3(0.2126, 0.7152, 0.0722));
+	float threshold = 0.75;
+	output.Color1.rgb = (l > threshold) ? output.Color0.rgb : float3(0.0, 0.0, 0.0);
+	output.Color1.a = 1.0;
+	return output;
+}

shaders/hdr/hlsl/gbuffer.vert.hlsl

@@ -0,0 +1,67 @@
+/* Copyright (c) 2024, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+struct VSInput
+{
+[[vk::location(0)]] float3 Pos : POSITION0;
+[[vk::location(1)]] float3 Normal : NORMAL0;
+};
+
+[[vk::constant_id(0)]] const int type = 0;
+
+struct UBO  {
+	float4x4 projection;
+	float4x4 modelview;
+    float4x4 skyboxModelview;
+    float4x4 inverseModelView;
+    float modelscale;
+};
+[[vk::binding(0, 0)]]
+ConstantBuffer<UBO> ubo : register(b0);
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] float3 UVW : TEXCOORD0;
+[[vk::location(1)]] float3 Normal : NORMAL0;
+[[vk::location(2)]] float3 ViewVec : TEXCOORD1;
+[[vk::location(3)]] float3 LightVec : TEXCOORD2;
+};
+
+VSOutput main(VSInput input)
+{
+	VSOutput output = (VSOutput)0;
+	output.UVW = input.Pos;
+    float3 worldPos;
+
+	switch(type) {
+		case 0: // Skybox
+            worldPos = mul((float4x3) ubo.skyboxModelview, input.Pos).xyz;
+			output.Pos = mul(ubo.projection, float4(worldPos, 1.0));
+			break;
+		case 1: // Object
+            worldPos = mul(ubo.modelview, float4(input.Pos * ubo.modelscale, 1.0)).xyz;
+            output.Pos = mul(ubo.projection, mul(ubo.modelview, float4(input.Pos.xyz * ubo.modelscale, 1.0)));
+			break;
+	}
+	output.Normal = mul((float4x3)ubo.modelview, input.Normal).xyz;
+	
+	float3 lightPos = float3(0.0f, -5.0f, 5.0f);
+    output.LightVec = lightPos.xyz - worldPos.xyz;
+    output.ViewVec = -worldPos.xyz;
+	return output;
+}