Added GetCameraViewVector().

simul · Nov 28, 2024 · e631513 · e631513
1 parent b53c40e
commit e631513
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diff --git a/CrossPlatform/Camera.cpp b/CrossPlatform/Camera.cpp
@@ -301,6 +301,14 @@ const float *platform::crossplatform::GetCameraPosVector(const float *v)
 	return cam_pos;
 }
 
+const float *platform::crossplatform::GetCameraViewVector(const float *v)
+{
+	platform::math::Matrix4x4 view(v);
+	static float cam_pos[4], view_dir[4];
+	GetCameraPosVector(view, (float *)cam_pos, (float *)view_dir);
+	return view_dir;
+}
+
 using namespace platform::math;
 Matrix4x4 platform::crossplatform::MatrixLookInDirection(const float *dir,const float *view_up,bool lefthanded)
 { 

diff --git a/CrossPlatform/Camera.h b/CrossPlatform/Camera.h
@@ -127,6 +127,8 @@ namespace platform
 		extern SIMUL_CROSSPLATFORM_EXPORT void GetCameraPosVector(const float *v,float *dcam_pos,float *view_dir,float *up=0);
 		//! Get the camera position from a view matrix.
 		extern SIMUL_CROSSPLATFORM_EXPORT const float *GetCameraPosVector(const float *v);
+		//! Get the camera view direction from a view matrix.
+		extern SIMUL_CROSSPLATFORM_EXPORT const float *GetCameraViewVector(const float *v);
 
 		extern SIMUL_CROSSPLATFORM_EXPORT void UpdateMouseCamera(	class Camera *cam
 															,float time_step