init

shaders/debug_utils/glsl/bloom.frag

@@ -0,0 +1,79 @@
+#version 450
+/* Copyright (c) 2020-2024, 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 = 0.004;
+	const float blurStrength = 0.6;
+
+	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/debug_utils/glsl/bloom.vert

@@ -0,0 +1,30 @@
+#version 450
+/* Copyright (c) 2020-2024, 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/debug_utils/glsl/composition.frag

@@ -0,0 +1,29 @@
+#version 450
+/* Copyright (c) 2020-2024, 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/debug_utils/glsl/composition.vert

@@ -0,0 +1,30 @@
+#version 450
+/* Copyright (c) 2020-2024, 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/debug_utils/glsl/gbuffer.frag

@@ -0,0 +1,69 @@
+#version 450
+/* Copyright (c) 2020-2024, 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 sampler2D samplerEnvMap;
+
+layout (location = 0) in vec2 inUV;
+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(push_constant) uniform Push_Constants {
+	vec4 offset;
+	vec4 color;
+	int object_type;
+} push_constants;
+
+void main() 
+{
+	vec4 color;
+
+	switch (push_constants.object_type) {
+		case 0: // Skysphere			
+			{
+				color = texture(samplerEnvMap, vec2(inUV.s, 1.0 - inUV.t));
+			}
+			break;
+		
+		case 1: // Phong shading
+			{
+				vec3 ambient = push_constants.color.rgb * vec3(0.5);
+				vec3 N = normalize(inNormal);
+				vec3 L = normalize(inLightVec);
+				vec3 V = normalize(inViewVec);
+				vec3 R = reflect(-L, N);
+				vec3 diffuse = max(dot(N, L), 0.0) * push_constants.color.rgb;
+				vec3 specular = vec3(pow(max(dot(R, V), 0.0), 8.0));
+				color = vec4(ambient + diffuse + specular, 1.0);	
+			}
+			break;
+	}
+
+	// Base color into attachment 0
+	outColor0.rgb = color.rgb;
+
+	// 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/debug_utils/glsl/gbuffer.vert

@@ -0,0 +1,60 @@
+#version 450
+/* Copyright (c) 2020-2024, 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 (location = 2) in vec2 inUV;
+
+layout (binding = 0) uniform UBO {
+	mat4 projection;
+	mat4 modelview;
+	mat4 skybox_modelview;
+	float modelscale;
+} ubo;
+
+layout (location = 0) out vec2 outUV;
+layout (location = 1) out vec3 outPos;
+layout (location = 2) out vec3 outNormal;
+layout (location = 3) out vec3 outViewVec;
+layout (location = 4) out vec3 outLightVec;
+
+layout(push_constant) uniform Push_Constants {
+	vec4 offset;
+	vec4 color;
+	int object_type;
+} push_constants;
+
+void main() 
+{
+	switch(push_constants.object_type) {
+		case 0: // Skysphere
+			outPos = vec3(mat3(ubo.skybox_modelview) * inPos);
+			gl_Position = vec4(ubo.projection * vec4(outPos, 1.0));
+			break;
+		case 1: // Object
+			vec3 localPos = inPos * ubo.modelscale + push_constants.offset.xyz;
+			outPos = vec3(ubo.modelview * vec4(localPos, 1.0));
+			gl_Position = ubo.projection * ubo.modelview * vec4(localPos, 1.0);
+			break;
+	}
+	outUV = inUV;
+	outNormal = mat3(ubo.modelview) * inNormal;	
+	vec3 lightPos = mat3(ubo.modelview) * vec3(0.0, -10.0, -10.0);
+	outLightVec = lightPos.xyz - outPos.xyz;
+	outViewVec = -outPos.xyz;		
+}

shaders/debug_utils/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/debug_utils/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/debug_utils/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/debug_utils/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/debug_utils/hlsl/gbuffer.frag.hlsl

@@ -0,0 +1,79 @@
+/* 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 textureEnvMap : register(t1);
+SamplerState samplerEnvMap : register(s1);
+
+struct VSOutput
+{
+float4 Pos : SV_POSITION;
+[[vk::location(0)]] float2 UV : 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;
+};
+
+struct PushConstants
+{
+	float4 offset;
+	float4 color;
+	int object_type;
+};
+[[vk::push_constant]] PushConstants push_constants;
+
+FSOutput main(VSOutput input)
+{
+	FSOutput output = (FSOutput)0;
+	float4 color;
+
+	switch (push_constants.object_type) {
+		case 0: // Skysphere
+			{
+				color = textureEnvMap.Sample(samplerEnvMap, float2(input.UV.x, 1.0 - input.UV.y));
+			}
+			break;
+
+		case 1: // Phong shading
+			{
+				float3 ambient = push_constants.color.rgb * 0.5;
+				float3 N = normalize(input.Normal);
+				float3 L = normalize(input.LightVec);
+				float3 V = normalize(input.ViewVec);
+				float3 R = reflect(-L, N);
+				float3 diffuse = max(dot(N, L), 0.0).xxx * push_constants.color.rgb;
+				float3 specular = (pow(max(dot(R, V), 0.0), 8.0)).xxx;
+				color = float4(ambient + diffuse + specular, 1.0);
+			}
+			break;
+	}
+
+	// Base color into attachment 0
+	output.Color0 = float4(color.rgb, 1.0);
+
+	// 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/debug_utils/hlsl/gbuffer.vert.hlsl

@@ -0,0 +1,74 @@
+/* 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::location(2)]] float2 UV : TEXCOORD0;
+};
+
+struct UBO  {
+	float4x4 projection;
+	float4x4 modelview;
+    float4x4 skyboxModelview;
+    float modelscale;
+};
+[[vk::binding(0, 0)]]
+ConstantBuffer<UBO> ubo : register(b0);
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] float2 UV : TEXCOORD0;
+[[vk::location(1)]] float3 Normal : NORMAL0;
+[[vk::location(2)]] float3 ViewVec : TEXCOORD1;
+[[vk::location(3)]] float3 LightVec : TEXCOORD2;
+};
+
+struct PushConstants
+{
+	float4 offset;
+	float4 color;
+	int object_type;
+};
+[[vk::push_constant]] PushConstants push_constants;
+
+VSOutput main(VSInput input)
+{
+	VSOutput output = (VSOutput)0;
+    float3 worldPos;
+
+	switch(push_constants.object_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
+			float3 localPos = input.Pos * ubo.modelscale + push_constants.offset.xyz;
+            worldPos = mul(ubo.modelview, float4(localPos, 1.0)).xyz;
+            output.Pos = mul(ubo.projection, mul(ubo.modelview, float4(localPos, 1.0)));
+			break;
+	}
+	output.Normal = mul((float4x3)ubo.modelview, input.Normal).xyz;
+	output.UV = input.UV;
+	
+	float3 lightPos = float3(0.0f, -5.0f, 5.0f);
+    output.LightVec = lightPos.xyz - worldPos.xyz;
+    output.ViewVec = -worldPos.xyz;
+	return output;
+}