You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.8 KiB
57 lines
1.8 KiB
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose: A set of utilities to deal with camera transforms
|
|
//
|
|
//===========================================================================//
|
|
|
|
#ifndef CAMERAUTILS_H
|
|
#define CAMERAUTILS_H
|
|
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include "tier2/tier2.h"
|
|
#include "Color.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Forward declarations
|
|
//-----------------------------------------------------------------------------
|
|
class Vector;
|
|
class QAngle;
|
|
class IMaterial;
|
|
struct matrix3x4_t;
|
|
class VMatrix;
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Camera state
|
|
// TODO: Maybe this should be a base class of CViewSetup?
|
|
//-----------------------------------------------------------------------------
|
|
struct Camera_t
|
|
{
|
|
Vector m_origin;
|
|
QAngle m_angles;
|
|
float m_flFOV;
|
|
float m_flZNear;
|
|
float m_flZFar;
|
|
};
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// accessors for generated matrices
|
|
//-----------------------------------------------------------------------------
|
|
void ComputeViewMatrix( VMatrix *pWorldToCamera, const Camera_t& camera );
|
|
void ComputeViewMatrix( matrix3x4_t *pWorldToCamera, const Camera_t& camera );
|
|
void ComputeProjectionMatrix( VMatrix *pCameraToProjection, const Camera_t& camera, int width, int height );
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Computes the screen space position given a screen size
|
|
//-----------------------------------------------------------------------------
|
|
void ComputeScreenSpacePosition( Vector2D *pScreenPosition, const Vector &vecWorldPosition,
|
|
const Camera_t &camera, int width, int height );
|
|
|
|
|
|
#endif // CAMERAUTILS_H
|
|
|