Updated MiniEngine to better support the Raytracing sample

Author: stanard

MiniEngine/Core/BufferManager.cpp

@@ -22,6 +22,7 @@ namespace Graphics
 {
     DepthBuffer g_SceneDepthBuffer;
     ColorBuffer g_SceneColorBuffer;
+    ColorBuffer g_SceneNormalBuffer;
     ColorBuffer g_PostEffectsBuffer;
     ColorBuffer g_VelocityBuffer;
     ColorBuffer g_OverlayBuffer;
@@ -110,6 +111,7 @@ void Graphics::InitializeRenderingBuffers( uint32_t bufferWidth, uint32_t buffer
     esram.PushStack();
 
         g_SceneColorBuffer.Create( L"Main Color Buffer", bufferWidth, bufferHeight, 1, DefaultHdrColorFormat, esram );
+        g_SceneNormalBuffer.Create( L"Normals Buffer", bufferWidth, bufferHeight, 1, DXGI_FORMAT_R16G16B16A16_FLOAT, esram );
         g_VelocityBuffer.Create( L"Motion Vectors", bufferWidth, bufferHeight, 1, DXGI_FORMAT_R32_UINT );
         g_PostEffectsBuffer.Create( L"Post Effects Buffer", bufferWidth, bufferHeight, 1, DXGI_FORMAT_R32_UINT );
 
@@ -243,6 +245,7 @@ void Graphics::DestroyRenderingBuffers()
 {
     g_SceneDepthBuffer.Destroy();
     g_SceneColorBuffer.Destroy();
+    g_SceneNormalBuffer.Destroy();
     g_VelocityBuffer.Destroy();
     g_OverlayBuffer.Destroy();
     g_HorizontalBuffer.Destroy();

MiniEngine/Core/BufferManager.h

@@ -21,13 +21,14 @@
 
 namespace Graphics
 {
-    extern DepthBuffer g_SceneDepthBuffer;    // D32_FLOAT_S8_UINT
-    extern ColorBuffer g_SceneColorBuffer;    // R11G11B10_FLOAT
-    extern ColorBuffer g_PostEffectsBuffer;    // R32_UINT (to support Read-Modify-Write with a UAV)
-    extern ColorBuffer g_OverlayBuffer;        // R8G8B8A8_UNORM
-    extern ColorBuffer g_HorizontalBuffer;    // For separable (bicubic) upsampling
+    extern DepthBuffer g_SceneDepthBuffer;  // D32_FLOAT_S8_UINT
+    extern ColorBuffer g_SceneColorBuffer;  // R11G11B10_FLOAT
+    extern ColorBuffer g_SceneNormalBuffer; // R16G16B16A16_FLOAT
+    extern ColorBuffer g_PostEffectsBuffer; // R32_UINT (to support Read-Modify-Write with a UAV)
+    extern ColorBuffer g_OverlayBuffer;     // R8G8B8A8_UNORM
+    extern ColorBuffer g_HorizontalBuffer;  // For separable (bicubic) upsampling
 
-    extern ColorBuffer g_VelocityBuffer;	// R10G10B10  (3D velocity)
+    extern ColorBuffer g_VelocityBuffer;    // R10G10B10  (3D velocity)
     extern ShadowBuffer g_ShadowBuffer;
 
     extern ColorBuffer g_SSAOFullScreen;	// R8_UNORM

MiniEngine/Core/CameraController.cpp

@@ -116,6 +116,28 @@ void FlyingFPSCamera::Update( float deltaTime )
     m_TargetCamera.Update();
 }
 
+void FlyingFPSCamera::SetHeadingPitchAndPosition(float heading, float pitch, const Vector3& position)
+{
+    m_CurrentHeading = heading;
+    if (m_CurrentHeading > XM_PI)
+        m_CurrentHeading -= XM_2PI;
+    else if (m_CurrentHeading <= -XM_PI)
+        m_CurrentHeading += XM_2PI; 
+
+    m_CurrentPitch = pitch;
+    m_CurrentPitch = XMMin( XM_PIDIV2, m_CurrentPitch);
+    m_CurrentPitch = XMMax(-XM_PIDIV2, m_CurrentPitch);
+
+    Matrix3 orientation =
+        Matrix3(m_WorldEast, m_WorldUp, -m_WorldNorth) * 
+        Matrix3::MakeYRotation( m_CurrentHeading ) *
+        Matrix3::MakeXRotation( m_CurrentPitch );
+
+    m_TargetCamera.SetTransform( AffineTransform( orientation, position ) );
+    m_TargetCamera.Update();
+}
+
+
 void CameraController::ApplyMomentum( float& oldValue, float& newValue, float deltaTime )
 {
     float blendedValue;

MiniEngine/Core/CameraController.h

@@ -54,6 +54,8 @@ class FlyingFPSCamera : public CameraController
 
     void EnableMomentum( bool enable ) { m_Momentum = enable; }
 
+    void SetHeadingPitchAndPosition(float heading, float pitch, const Vector3& position);
+
 private:
 
     Vector3 m_WorldUp;