initial commit jolt

Engine/lib/JoltPhysics/TestFramework/Renderer/RenderInstances.h

@@ -0,0 +1,28 @@
+// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
+// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <Jolt/Core/Reference.h>
+
+class RenderPrimitive;
+
+/// Buffer that holds a list of instances (usually model transform etc.) for instance based rendering
+class RenderInstances : public RefTarget<RenderInstances>
+{
+public:
+	/// Destructor
+	virtual					~RenderInstances() = default;
+
+	/// Erase all instance data
+	virtual void			Clear() = 0;
+
+	/// Instance buffer management functions
+	virtual void			CreateBuffer(int inNumInstances, int inInstanceSize) = 0;
+	virtual void *			Lock() = 0;
+	virtual void			Unlock() = 0;
+
+	/// Draw the instances when context has been set by Renderer::BindShader
+	virtual void			Draw(RenderPrimitive *inPrimitive, int inStartInstance, int inNumInstances) const = 0;
+};