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VideoCommon: Use freelook field of view to change the perspective of the camera

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This commit is contained in:
iwubcode 2020-05-18 17:22:41 -05:00
parent 98de22a1e6
commit 3d7d4dfc8a
3 changed files with 39 additions and 6 deletions
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21
Source/Core/VideoCommon/FreeLookCamera.cpp
View file

@ -204,6 +204,11 @@ Common::Matrix44 FreeLookCamera::GetView()
return m_camera_controller->GetView();
}
Common::Vec2 FreeLookCamera::GetFieldOfView() const
{
return Common::Vec2{m_fov_x, m_fov_y};
}
void FreeLookCamera::MoveVertical(float amt)
{
m_camera_controller->MoveVertical(amt);
@ -228,9 +233,23 @@ void FreeLookCamera::Rotate(const Common::Vec3& amt)
m_dirty = true;
}
void FreeLookCamera::IncreaseFovX(float fov)
{
m_fov_x += fov;
m_fov_x = std::clamp(m_fov_x, 0.1f, m_fov_x);
}
void FreeLookCamera::IncreaseFovY(float fov)
{
m_fov_y += fov;
m_fov_y = std::clamp(m_fov_y, 0.1f, m_fov_y);
}
void FreeLookCamera::Reset()
{
m_camera_controller->Reset();
m_fov_x = 1.0f;
m_fov_y = 1.0f;
m_dirty = true;
}
@ -239,6 +258,8 @@ void FreeLookCamera::DoState(PointerWrap& p)
if (p.mode == PointerWrap::MODE_WRITE || p.mode == PointerWrap::MODE_MEASURE)
{
p.Do(m_current_type);
p.Do(m_fov_x);
p.Do(m_fov_y);
if (m_camera_controller)
{
m_camera_controller->DoState(p);

6
Source/Core/VideoCommon/FreeLookCamera.h
View file

@ -43,6 +43,7 @@ class FreeLookCamera
public:
void SetControlType(FreelookControlType type);
Common::Matrix44 GetView();
Common::Vec2 GetFieldOfView() const;
void MoveVertical(float amt);
void MoveHorizontal(float amt);
@ -51,6 +52,9 @@ public:
void Rotate(const Common::Vec3& amt);
void IncreaseFovX(float fov);
void IncreaseFovY(float fov);
void Reset();
void DoState(PointerWrap& p);
@ -60,6 +64,8 @@ public:
private:
bool m_dirty = false;
float m_fov_x = 1.0f;
float m_fov_y = 1.0f;
std::optional<FreelookControlType> m_current_type;
std::unique_ptr<CameraController> m_camera_controller;
};

18
Source/Core/VideoCommon/VertexShaderManager.cpp
View file

@ -355,14 +355,17 @@ void VertexShaderManager::SetConstants()
switch (xfmem.projection.type)
{
case GX_PERSPECTIVE:
g_fProjectionMatrix[0] = rawProjection[0] * g_ActiveConfig.fAspectRatioHackW;
{
const Common::Vec2 fov =
g_ActiveConfig.bFreeLook ? g_freelook_camera.GetFieldOfView() : Common::Vec2{1, 1};
g_fProjectionMatrix[0] = rawProjection[0] * g_ActiveConfig.fAspectRatioHackW * fov.x;
g_fProjectionMatrix[1] = 0.0f;
g_fProjectionMatrix[2] = rawProjection[1] * g_ActiveConfig.fAspectRatioHackW;
g_fProjectionMatrix[2] = rawProjection[1] * g_ActiveConfig.fAspectRatioHackW * fov.x;
g_fProjectionMatrix[3] = 0.0f;
g_fProjectionMatrix[4] = 0.0f;
g_fProjectionMatrix[5] = rawProjection[2] * g_ActiveConfig.fAspectRatioHackH;
g_fProjectionMatrix[6] = rawProjection[3] * g_ActiveConfig.fAspectRatioHackH;
g_fProjectionMatrix[5] = rawProjection[2] * g_ActiveConfig.fAspectRatioHackH * fov.y;
g_fProjectionMatrix[6] = rawProjection[3] * g_ActiveConfig.fAspectRatioHackH * fov.y;
g_fProjectionMatrix[7] = 0.0f;
g_fProjectionMatrix[8] = 0.0f;
@ -377,9 +380,11 @@ void VertexShaderManager::SetConstants()
g_fProjectionMatrix[15] = 0.0f;
g_stats.gproj = g_fProjectionMatrix;
break;
}
break;
case GX_ORTHOGRAPHIC:
{
g_fProjectionMatrix[0] = rawProjection[0];
g_fProjectionMatrix[1] = 0.0f;
g_fProjectionMatrix[2] = 0.0f;
@ -403,7 +408,8 @@ void VertexShaderManager::SetConstants()
g_stats.g2proj = g_fProjectionMatrix;
g_stats.proj = rawProjection;
break;
}
break;
default:
ERROR_LOG(VIDEO, "Unknown projection type: %d", xfmem.projection.type);