Add depth bias config to shader

openVulkanoCpp/Scene/Prefabs/LabelDrawable.cpp

@@ -58,6 +58,7 @@ namespace OpenVulkano::Scene
 				billboardUniformBinding.stageFlags = ShaderProgramType::Type::VERTEX;
 				shader.AddDescriptorSetLayoutBinding(billboardUniformBinding, 4);
 			}
+			shader.EnableDepthBias();
 			return shader;
 		}
 

openVulkanoCpp/Scene/Shader/Shader.hpp

@@ -81,7 +81,6 @@ namespace OpenVulkano::Scene
 	};
 
 
-
 	class Shader final : public RenderResourceHolder<Shader>, public ICloseable
 	{
 	public:
@@ -96,6 +95,8 @@ namespace OpenVulkano::Scene
 		bool depthTest = true;
 		bool depthWrite = true;
 		bool dynamicViewport = true; // If disabled the swapchains fullscreen viewport will always be used, regardless of framebuffer or viewport
+		bool depthBias = false;
+		float depthBiasClamp = 0.0f, depthBiasSlope = 0.0f, depthBiasConstant = 0.0f;
 
 		Shader() = default;
 		~Shader() override { Shader::Close(); }
@@ -128,6 +129,7 @@ namespace OpenVulkano::Scene
 		{
 			CheckShaderInitState();
 			if (bindingId < 0) bindingId = static_cast<int>(vertexInputDescriptions.size());
+			// ReSharper disable once CppDFALoopConditionNotUpdated
 			while (bindingId > static_cast<int>(vertexInputDescriptions.size()))
 			{
 				vertexInputDescriptions.emplace_back(0, 0);
@@ -149,6 +151,7 @@ namespace OpenVulkano::Scene
 			if (setId < 0) setId = static_cast<int>(descriptorSets.size() + 2);
 			if (setId < 2) throw std::runtime_error("Cant bind set id 0 or 1! They are used for node and camera!");
 			setId -= 2;
+			// ReSharper disable once CppDFALoopConditionNotUpdated
 			while (setId >= static_cast<int>(descriptorSets.size()))
 			{
 				descriptorSets.emplace_back();
@@ -163,6 +166,13 @@ namespace OpenVulkano::Scene
 			pushConstantRanges.push_back(pushConstantRange);
 		}
 
+		void EnableDepthBias(const float slope = -1.0, const float constant = 0.001f)
+		{
+			depthBias = true;
+			depthBiasSlope = slope;
+			depthBiasConstant = constant;
+		}
+
 		void Close() override
 		{
 			if (HasRenderResource())

openVulkanoCpp/Vulkan/Scene/VulkanShader.cpp

@@ -84,6 +84,13 @@ namespace OpenVulkano::Vulkan
 		vk::PipelineInputAssemblyStateCreateInfo inputAssembly = { {}, static_cast<vk::PrimitiveTopology>(shader->topology), 0 };
 		vk::PipelineRasterizationStateCreateInfo rasterizer = {};
 		rasterizer.cullMode = static_cast<vk::CullModeFlagBits>(shader->cullMode);
+		if (shader->depthBias)
+		{
+			rasterizer.depthBiasEnable = VK_TRUE;
+			rasterizer.depthBiasClamp = shader->depthBiasClamp;
+			rasterizer.depthBiasConstantFactor = shader->depthBiasConstant;
+			rasterizer.depthBiasSlopeFactor = shader->depthBiasSlope;
+		}
 		vk::PipelineMultisampleStateCreateInfo msaa = {};
 		vk::PipelineDepthStencilStateCreateInfo depth = { {}, shader->depthTest, shader->depthWrite, static_cast<vk::CompareOp>(shader->depthCompareOp) };
 		depth.maxDepthBounds = 1;

openVulkanoCpp/Vulkan/Scene/VulkanShader.hpp

@@ -11,39 +11,36 @@
 #include <vulkan/vulkan.hpp>
 #include <vector>
 
-namespace OpenVulkano
+namespace OpenVulkano::Vulkan
 {
-	namespace Vulkan
-	{
-		class Context;
-		class IShaderOwner;
+	class Context;
+	class IShaderOwner;
 
 	class VulkanShader final : public IRenderResource<Scene::Shader>, public IRecordable
-		{
-		public:
-			vk::Device device;
-			std::vector<vk::ShaderModule> shaderModules; // TODO manage live time somewhere else to allow sharing of shader programs
-			std::vector<vk::PipelineShaderStageCreateInfo> shaderStageCreateInfo;
-			vk::Pipeline pipeline; // TODO pipeline and shader config should be split
-			std::vector<vk::DescriptorSetLayout> descriptorSetLayouts;
-			vk::PipelineLayout pipelineLayout;
-			IShaderOwner* owner = nullptr;
-			Context* context = nullptr;
+	{
+	public:
+		vk::Device device;
+		std::vector<vk::ShaderModule> shaderModules; // TODO manage live time somewhere else to allow sharing of shader programs
+		std::vector<vk::PipelineShaderStageCreateInfo> shaderStageCreateInfo;
+		vk::Pipeline pipeline; // TODO pipeline and shader config should be split
+		std::vector<vk::DescriptorSetLayout> descriptorSetLayouts;
+		vk::PipelineLayout pipelineLayout;
+		IShaderOwner* owner = nullptr;
+		Context* context = nullptr;
 
-			VulkanShader(Context* context, Scene::Shader* shader, IShaderOwner* owner);
+		VulkanShader(Context* context, Scene::Shader* shader, IShaderOwner* owner);
 
-			~VulkanShader() override;
+		~VulkanShader() override;
 
-			void Resize();
+		void Resize();
 
-			void Record(VulkanDrawContext* context) override;
+		void Record(VulkanDrawContext* context) override;
 
-			void Release() override;
+		void Release() override;
 
-		private:
-			void BuildPipeline();
+	private:
+		void BuildPipeline();
 
-			void CreatePipelineLayout();
-		};
-	}
+		void CreatePipelineLayout();
+	};
 }