Differential D2020 Diff 8631 source/graphics/Camera.h

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source/graphics/Camera.h

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* which can be used to cull objects for rendering.		* which can be used to cull objects for rendering.
*/		*/

#ifndef INCLUDED_CAMERA		#ifndef INCLUDED_CAMERA
#define INCLUDED_CAMERA		#define INCLUDED_CAMERA

#include "graphics/Frustum.h"		#include "graphics/Frustum.h"
#include "maths/BoundingBoxAligned.h"		#include "maths/BoundingBoxAligned.h"
#include "maths/Matrix3D.h"		#include "maths/Matrix3D.h"
		elexisUnsubmitted Not Done Inline Actions tanf in <math.h> elexis: tanf in <math.h>

		#include <array>

// view port		// view port
struct SViewPort		struct SViewPort
{		{
int m_X;		int m_X;
int m_Y;		int m_Y;
int m_Width;		int m_Width;
int m_Height;		int m_Height;
};		};
Show All 18 Lines	public:
// everytime the view or projection matrices are		// everytime the view or projection matrices are
// altered.		// altered.
void UpdateFrustum(const CBoundingBoxAligned& scissor = CBoundingBoxAligned(CVector3D(-1.0f, -1.0f, -1.0f), CVector3D(1.0f, 1.0f, 1.0f)));		void UpdateFrustum(const CBoundingBoxAligned& scissor = CBoundingBoxAligned(CVector3D(-1.0f, -1.0f, -1.0f), CVector3D(1.0f, 1.0f, 1.0f)));
void ClipFrustum(const CPlane& clipPlane);		void ClipFrustum(const CPlane& clipPlane);
const CFrustum& GetFrustum() const { return m_ViewFrustum; }		const CFrustum& GetFrustum() const { return m_ViewFrustum; }

void SetViewPort(const SViewPort& viewport);		void SetViewPort(const SViewPort& viewport);
const SViewPort& GetViewPort() const { return m_ViewPort; }		const SViewPort& GetViewPort() const { return m_ViewPort; }
		float GetAspectRatio() const;

float GetNearPlane() const { return m_NearPlane; }		float GetNearPlane() const { return m_NearPlane; }
float GetFarPlane() const { return m_FarPlane; }		float GetFarPlane() const { return m_FarPlane; }
float GetFOV() const { return m_FOV; }		float GetFOV() const { return m_FOV; }

// Returns four points in camera space at given distance from camera		// Returns four points in camera space at given distance from camera
void GetCameraPlanePoints(float dist, CVector3D pts[4]) const;		void GetCameraPlanePoints(float dist, std::array<CVector3D, 4>& pts) const;

// Build a ray passing through the screen coordinate (px, py) and the camera		// Build a ray passing through the screen coordinate (px, py) and the camera
/////////////////////////////////////////////////////////////////////////////////////////		/////////////////////////////////////////////////////////////////////////////////////////
// BuildCameraRay: calculate origin and ray direction of a ray through		// BuildCameraRay: calculate origin and ray direction of a ray through
// the pixel (px,py) on the screen		// the pixel (px,py) on the screen
void BuildCameraRay(int px, int py, CVector3D& origin, CVector3D& dir) const;		void BuildCameraRay(int px, int py, CVector3D& origin, CVector3D& dir) const;

// General helpers that seem to fit here		// General helpers that seem to fit here
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