Adding preliminary metal support (it sucks)

src/metal/MetalRenderer.h

@@ -0,0 +1,54 @@
+#pragma once
+#include "metal/MetalScene.h"
+#include "scene/Renderer.h"
+#include "util/Camera.h"
+#include <Foundation/Foundation.hpp>
+#include <Metal/Metal.hpp>
+#include <QuartzCore/QuartzCore.hpp>
+
+struct GPUCamera
+{
+  glm::vec3 cameraPosition;
+  float f;
+  glm::vec3 cameraForward;
+  float S_O;
+  glm::vec3 fogEmm;
+  float ks;
+  float A;
+  float ka;
+  glm::vec2 sensorSize;
+    uint width;
+    uint height;
+};
+
+struct SampleParams
+{
+    uint pass;
+    uint samplesPerPixel;
+    uint numDirectionalLights;
+    uint numPointLights;
+};
+
+class MetalRenderer : public Renderer
+{
+public:
+    MetalRenderer();
+    virtual ~MetalRenderer();
+    virtual void addPointLight(PointLight point) override { scene->addPointLight(point); }
+    virtual void addDirectionalLight(DirectionalLight dir) override { scene->addDirectionalLight(dir); }
+    virtual void addModel(PModel model, glm::mat4 transform) override { scene->addModel(std::move(model), transform); }
+    virtual void addModels(std::vector<PModel> models, glm::mat4 transform) override { scene->addModels(std::move(models), transform); }
+    virtual void generate() override { scene->generate(); }
+    virtual void render(Camera camera, RenderParameter params) override;
+    
+private:
+    MTL::Device* device;
+    MTL::Library* library;
+    MTL::CommandQueue* queue;
+    MTL::Function* function;
+    MTL::ComputePipelineState* computePipeline;
+    MTL::Buffer* accumulator;
+    MTL::Buffer* resultTexture;
+
+    MetalScene* scene;
+};