HideEntity and shadows

[VeTaL]

First, can i hide entity so i could see only shadow, not model (like for character controller model in FPS).

Second, can i hide shadow from first light source and render only from second? (we want to reproduce some shadow anomalies: a shadow of one entity must be differ from other entities shadows).

[macklebee]

well i dont know about the second one, but this is how I would do the first one:

require("scripts/class")
local class=CreateClass(...)

function class:CreateObject(model)
       local object=self.super:CreateObject(model)

function object:DrawEach(camera)
	if camera==fw.main.camera then
		GetChild(object.model,1):Hide()
	else
		GetChild(object.model,1):Show()
	end
end
end

[macklebee]

and actually, that does kind of do what you are wanting for the second part as well... that script only shows the shadows that are created from a directional light and not from point or spot lights... i dont know why though...

[VeTaL]

I'm lost in converting this to C++...

 

Do i need to overload render function for entity that i want to show a shadow?

[macklebee]

I'm lost in converting this to C++...

 

Do i need to overload render function for entity that i want to show a shadow?

 

well i assume you would have to use the new entity draw callback that was added here recently... though i am not too sure of the syntax... and especially for c++... i would assume there are alot of semicolons and possibly a 'void' in there...

[VeTaL]

Okay, so how its done in some video demos (i saw on youtube demos of fps, where player shoots from gun... as i remember, there were shadow of him)?

[VeTaL]

Hey... maybe this can be in camera properties? Not to render the player, from wich camera is looking, but render his shadow. (in 3d gamestudio there is possibility like this)

[Flexman]

Well, just to throw this into the mix.

 

The material can use a shader with the "invisible.frag" which won't render, but the shadow shader can use your standard "mesh_shadow.frag" which will render (should render) the shadow.

 

So you have two materials, one to render the material you can see for 3rd person, paint it with the invisible material for first person.

 

This is how I intend to do it for our pilot character.

[VeTaL]

Ahh, that exact what i need on first question ^^

Imo, this also can be added to FAQ.