Allow shader to define the depth compare operator

openVulkanoCpp/Scene/Shader/Shader.hpp

@@ -40,6 +40,18 @@ namespace OpenVulkano::Scene
 		PATCH_LIST
 	};
 
+	enum class CompareOp : uint32_t
+	{
+		NEVER = 0,
+		LESS = 1,
+		EQUAL = 2,
+		LESS_OR_EQUAL = 3,
+		GREATER = 4,
+		NOT_EQUAL = 5,
+		GREATER_OR_EQUAL = 6,
+		ALWAYS = 7
+	};
+
 	struct ShaderProgram
 	{
 		ShaderProgramType type;
@@ -77,6 +89,7 @@ namespace OpenVulkano::Scene
 		Topology topology = Topology::TRIANGLE_LIST;
 		CullMode cullMode = CullMode::BACK;
 		ICloseable* renderShader = nullptr;
+		CompareOp depthCompareOp = CompareOp::LESS;
 		bool alphaBlend = false; // TODO allow fine control over blending
 		bool depthTest = true;
 		bool depthWrite = true;