Hello,
I’m currently doing a marquee/selection box found in RTS. In UDK there is a project() function that transform 3D space into 2D space. Are there any similar functions found in Rocket?
Thanks
Link to UDK Canvas Technical:UDK | CanvasTechnicalGuide
Dear Lim,
Yes there is such a function!
You will need to be using your own custom HUD class to use it, and you must call it from within DrawHUD
it is
if(Canvas)Canvas->Project()
and
if(Canvas) Canvas->Deproject()
#Canvas.h
Refer to the Canvas.h file in your main Rocket install Source folder for more info, you should get used to refering to these .h files
/** Transforms a 3D world-space vector into 2D screen coordinates. */
FVector Project(FVector Location);
/**
* Transforms 2D screen coordinates into a 3D world-space origin and direction.
* @param ScreenPos - screen coordinates in pixels
* @param WorldOrigin (out) - world-space origin vector
* @param WorldDirection (out) - world-space direction vector
*/
void Deproject(FVector2D ScreenPos, /*out*/ FVector& WorldOrigin, /*out*/ FVector& WorldDirection);
#Windows Grep
I recommend using something like windows grep to make searches easier
It’s free and is independent of Visual Studio
Rama
Hello Rama,
I did a search in the Source folder and found 2 Canvas.h but i managed to find the Project() one under the Engine folder. Thanks for your help and the Wingrep recommendation.
Thanks