Thanks Ricky,

but I'm not sure if that's what I'm after. That looks like normal object rotation, but I'm trying to make a direction vector. The example given in a previous post did something like this:

CreateRay(Ray* dst,Real x,Real y)
{
	CameraMatrix = MyCam->GetMg();
	
	Vector H = CameraMatrix.v1;
	Vector V = CameraMatrix.v2;
	Vector A = CameraMatrix.v3;
	Vector direction_vector = H + V + A;
	
	// how do I "add" 4.5° yaw to the direction_vector?
	// similarly for pitch
	
	dst->v = direction_vector;
	dst->p = CameraMatrix.off;
}

How do I "add" 4.5 degrees to the yaw with something like this (taking into account the camera's rotation as well)? I'd like to see the math so I can play around with that.

If it's easier, think of it like this - I'm trying to create the standard camera ray without any lens effects (trying to keep it simple). How is the standard camera ray done?

WP.

Hi folks,

I can't get this right. Sometime a go I posted a topic on CreateRay(). I got a (spherical?) example which was awesome, and I could play around with it to some degree. But I'm not grasping how I can expand on this.

Instead of a spherical lens, if I have two angles that I want to 'add' to my camera's rotation, how do I create a direction vector from the camera matrix with this? How would this look in math/coding terms with the following added to the camera rotation:

yaw = 4.5°
pitch = 3.7°

I'm trying to create a direction vector that's based on two angles from my camera's centre. So 4.5° left/right and 3.7° up/down kind of thing.

WP.

@m_magalhaes all good my end!

Am interested to see the further example when available (if nothing else, just to add it to my examples kitty!).

Cheers,

WP.

That did the trick - thanks Manuel.

Hi folks,

is there an example lens effect using the CreateRay() override somewhere? I'm trying to make a custom lens but the draw is all over the place. Would like to see a working example. Something similar that would draw like the default (assuming there is one).

WP.

Thanks for your time, effort and help over the years Andreas. Wishing you all the best for a spicy future!

Welcome Manuel!

Apologies, thought I had left a response but I didn't hit submit!!

Thanks fwilleke80, I was hoping to avoid writing my own, but I might have to.

Hi r_gigante, it's a doc in memory (not a clone, but in memory none-the-less) and can't be in the active viewport. It's rendered to bitmap, sometimes very frequently. So I can't be switching to it in the viewport for one command on each frame. Is there no way to piggyback off the underlying CallCommand() functions for this? No messages I could send to try and invoke it?

WP.

Hi folks,

how can I frame all objects in a document in memory (like command id 12148)?

WP.

Hi folks,

in what thread is the viewport played back in? Is it the main thread or is it another thread?

I'm referring to scene playback, that is, when you click the play button - how's it driven?

WP.

Do the GeUserArea sections display anything? Or are they just spacers?

A mock-up picture might help others to visualise.

How about a 'global' drag and drop function? So, make separate iCustomGui/GeUserAreas for each section. Then just point each of these to the same function held in the parent dialog? That way you only have to write the main drag/catch routine once, in the parent dialog.

Just a thought.

WP.