Scratch

It's quite a difficult process, but you may want to look at BigB's 3D Stunt Flyer if it's something along those lines that you're looking for.

what do you mean by 3D movement, do you mean that the camera would follow your chacter (sorry about the spelling) or would it be like fps.

The only way I know is blender.

Look at M44's project Behind Enemy Lines.Also,for 3-D movement where you appear to get closer to an object,you could have the up and down arrow keys control a variable that controls size,and if you want walls,you could have the walls change into a diffrent costume depending on the ScrollX so it looks like your viewing them from an angle,but that would be getting REALLY complicated.

Last edited by Brass45 (2009-08-26 08:35:27)

i have a * answer for it use my Roit Engine u can find it in Space Combat 3d http://scratch.mit.edu/projects/fanofcena/572735 here if u want Better Movement u could use this engine http://scratch.mit.edu/projects/fanofcena/650060

the only thing  I know is if you're going to waste so much time on making a 3D game on scratch you should rather be wasting time on making a 3D game on something that is meant to support 3D gaming

solstice wrote:

dingdong wrote:

the only thing  I know is if you're going to waste so much time on making a 3D game on scratch you should rather be wasting time on making a 3D game on something that is meant to support 3D gaming

I agree use a 3d made program to make 3d things,

for game engines you can get Unreal Editor by picking up a copy of Unreal Tournament 3 or Gears of War 2 which is has a bit of learning to do but it is a really strong program when you get used to it,
there are also some SDK's out there to use like OGRE,
also you can learn how to script 3d (download Microsoft Visual C# 2008 and XNA game studio)
there are several other ways but I wont go into them.

yes you can use a 3d program to make 3d things. but its funner to try to make 3d things on stuff your not soposed to (well FAKE 3d). its just a fun challenge.

I built a 3-D engine. You can look at them. I don't think they were recent though.

I've created some 3d projects.  I agree with awsomemaster that it's a fun challenge.  I just posted a long post post about 3d scratch projects over there. BUT I reposted it below, because I think here in advanced topics is a better place for it.

--------------------
I believe a realtime first person, explorable 3d environment IS possible in Scratch.  It just takes a *TON* of work to figure out and create. s65 http://scratch.mit.edu/users/S65 and others have made good progress.

Solid and texture surfaces are not practical in Scratch, but wireframe art is.
Some of my projects explore rending of wireframe 3d objects.  You can use these as a starting point in your projects.

3d environments are made easier by just positioning and resizing sprites, and not worrying about trying to draw walls and shapes.  See s65's SpRiTeD 3D Projection Engine: http://scratch.mit.edu/forums/viewtopic.php?id=6033  Another good approach is to use prerendered backgrounds, and just change as needed.  But this is limited, as you need a ton of art to do much.

But like I said I think wireframe 3d environments are possible:
A challenge is that lines that run off the screen are not projected where they should,
(Try zooming into my 3d desk project for an example. http://scratch.mit.edu/projects/AddZero/347789 ) so walls become deformed.  I started working on a solution here: http://scratch.mit.edu/projects/AddOne/564258
Also this can be used to hide walls that are behind other walls.
It is very important the the renderer only draws walls that are visible, otherwise in will waste allot time drawing walls off in the distance, that should be hidden.  This very important if you want large environments,.

I think the DOOM (one of the first '3d' games that ran on slow computers) 3d engine is a good design to pattern off of.  Maps were 2d vector sectors, joined together.  The engine projected just the walls that were necessary, hidden walls across the level were not rendered, just the ones visible to the player.  They used a technique called raycasting to render the walls.  s65 attempted this with a Wolfenstine (one of the first fps that has even lower computer requirements.) like engine:  But solid rendering is not practical in scratch.
Instead, I'd just render the outlines of the walls.  The map structure can be similar to DOOM, a tree or web like data structure can be used to tell what sectors are connected to what.  I explored the tree structure idea some here: http://scratch.mit.edu/projects/AddZero/346118  A similar technique could be used to store the map information into one list that can be read quickly.

I think it would render faster if the engine know what sectors were visible from the current sector without raycasting.  So this can be figure out beforehand for each sectore and stored in another list.

Well. I rambled allot.  I hope this was helpful.  Goodluck.  I may be able to help further if you have questions.

Brass45 wrote:

I know that probably everyone knows this by now,but RHY375467 is the leading expert in 3D on scratch.His now famous GALE3D projection engine uses trig to calculate an objects rotation and position,and he has proved with at least half a dozen tech demos that the long-standing belief"you can't make true 3D in scratch" is dead wrong.

Yeah i agreee

TobiOlivers wrote:

fanofcena wrote:

Brass45 wrote:

I know that probably everyone knows this by now,but RHY375467 is the leading expert in 3D on scratch.His now famous GALE3D projection engine uses trig to calculate an objects rotation and position,and he has proved with at least half a dozen tech demos that the long-standing belief"you can't make true 3D in scratch" is dead wrong.

Yeah i agreee

yep, i use his engine alot, it's very, very helpful 

But very very very very slow ;P
better way i made it on an oldy language the c++ and got extraordinary views

Last edited by fanofcena (2009-12-13 10:41:24)

check out http://www.3drad.com/ I do not think Sratch is capable.