WIP adding directory structure

kraken/nodes/KRCamera.h

@@ -0,0 +1,121 @@
+//
+//  KRSettings.h
+//  Kraken Engine
+//
+//  Copyright 2024 Kearwood Gilbert. All rights reserved.
+//  
+//  Redistribution and use in source and binary forms, with or without modification, are
+//  permitted provided that the following conditions are met:
+//  
+//  1. Redistributions of source code must retain the above copyright notice, this list of
+//  conditions and the following disclaimer.
+//  
+//  2. Redistributions in binary form must reproduce the above copyright notice, this list
+//  of conditions and the following disclaimer in the documentation and/or other materials
+//  provided with the distribution.
+//  
+//  THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
+//  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+//  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
+//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+//  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+//  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//  
+//  The views and conclusions contained in the software and documentation are those of the
+//  authors and should not be interpreted as representing official policies, either expressed
+//  or implied, of Kearwood Gilbert.
+//
+
+#pragma once
+
+#include "KREngine-common.h"
+
+#include "KRPipeline.h"
+#include "KRContextObject.h"
+#include "resources/texture/KRTexture.h"
+#include "KRContext.h"
+#include "KRViewport.h"
+#include "KRRenderSettings.h"
+#include "resources/mesh/KRMeshManager.h"
+
+#define KRAKEN_FPS_AVERAGE_FRAME_COUNT 30
+
+class KRModel;
+class KRScene;
+class KRViewport;
+class KRSurface;
+
+class KRCamera : public KRNode
+{
+public:
+  static void InitNodeInfo(KrNodeInfo* nodeInfo);
+  KRCamera(KRScene& scene, std::string name);
+  virtual ~KRCamera();
+
+  KrResult update(const KrNodeInfo* nodeInfo) override;
+
+  void renderFrame(VkCommandBuffer& commandBuffer, KRSurface& compositeSurface);
+
+  KRRenderSettings settings;
+
+  const KRViewport& getViewport() const;
+
+
+  virtual std::string getElementName() override;
+  virtual tinyxml2::XMLElement* saveXML(tinyxml2::XMLNode* parent) override;
+  virtual void loadXML(tinyxml2::XMLElement* e) override;
+
+  std::string getDebugText();
+
+  void flushSkybox();     // this will delete the skybox and cause the camera to reload a new skybox based on the settings
+
+  void setFadeColor(const hydra::Vector4& fade_color);
+  hydra::Vector4 getFadeColor();
+
+  void setSkyBox(const std::string& skyBox);
+  const std::string getSkyBox() const;
+
+private:
+  void createBuffers(int renderBufferWidth, int renderBufferHeight);
+
+  int volumetricBufferWidth, volumetricBufferHeight;
+
+  int compositeFramebuffer, compositeDepthTexture, compositeColorTexture;
+  int lightAccumulationBuffer, lightAccumulationTexture;
+
+
+  int volumetricLightAccumulationBuffer, volumetricLightAccumulationTexture;
+
+  void renderPost(VkCommandBuffer& commandBuffer, KRSurface& surface);
+  void renderDebug(VkCommandBuffer& commandBuffer, KRSurface& surface);
+
+  void destroyBuffers();
+
+  KrSurfaceHandle m_surfaceHandle;
+  KRTexture* m_pSkyBoxTexture;
+  std::string m_skyBox;
+  KRViewport m_viewport;
+
+  float m_particlesAbsoluteTime;
+
+  hydra::Vector4 m_fade_color;
+
+  typedef struct
+  {
+    float x;
+    float y;
+    float z;
+    float u;
+    float v;
+  } DebugTextVertexData;
+
+  mimir::Block m_debug_text_vertices;
+  KRMeshManager::KRVBOData m_debug_text_vbo_data;
+
+  uint64_t m_last_frame_start;
+  int m_frame_times[KRAKEN_FPS_AVERAGE_FRAME_COUNT];
+  int m_frame_times_filled;
+};