prevent +/-PI pitch (camera look at does not like that)

hw3d/Camera.cpp

@@ -35,7 +35,7 @@ void Camera::SpawnControlWindow() noexcept
 		ImGui::SliderFloat( "Y",&pos.y,-80.0f,80.0f,"%.1f" );
 		ImGui::SliderFloat( "Z",&pos.z,-80.0f,80.0f,"%.1f" );
 		ImGui::Text( "Orientation" );
-		ImGui::SliderAngle( "Pitch",&pitch,-90.0f,90.0f );
+		ImGui::SliderAngle( "Pitch",&pitch,0.995f * -90.0f,0.995f * 90.0f );
 		ImGui::SliderAngle( "Yaw",&yaw,-180.0f,180.0f );
 		if( ImGui::Button( "Reset" ) )
 		{
@@ -55,7 +55,7 @@ void Camera::Reset() noexcept
 void Camera::Rotate( float dx,float dy ) noexcept
 {
 	yaw = wrap_angle( yaw + dx * rotationSpeed );
-	pitch = std::clamp( pitch + dy * rotationSpeed,-PI / 2.0f,PI / 2.0f );
+	pitch = std::clamp( pitch + dy * rotationSpeed,0.995f * -PI / 2.0f,0.995f * PI / 2.0f );
 }
 
 void Camera::Translate( DirectX::XMFLOAT3 translation ) noexcept