I'm trying to do some experiments with GL 3D on OpenFL. I started from the HerokuShaders example . I am trying to setup a basic cube. So I increased the glBuffer to 36 vertices and increased the count in the draw. So far it looked ok. But because it's square on I cannot tell if it worked. So I figured a rotation about y-axis by a little bit would help. But that fails completely. I built a 3D rotation matrix and converted it to a Float32Array as required by gl.uniformMatrix4fv. But I just get a blank window now. I tried copying the matrix data to the vertex shader directly but same result. So the question is: is 3D possible here ? Am I missing something basic ? I could not find among the samples a 3D example to start from.

I don't know the low level openfl stuff but for 3D with OpenFL I would look into Away3D for OpenFL https://github.com/openfl/away3d

yeah I've seen a lot of people do that - I am trying to bash my head fairly directly against OpenGL which is why I wanted to use th gl context directly. Can I do that with Away or is it all wrapped up in helpers of one kind or another ?

Mind you - I could look at how Away does it I guess

I have no idea, I mostly stay at "high level" (as3 background) 🙂 openFL is basically "open Flash", maybe you are looking for something else like Heaps ?

Heaps has a bunch of wrappers over GL also

I'm trying not to resort to C though obviously that's an option

Maybe Lime then, openFL is built on it, I know there are people working with Lime directly but I wouldn't know where to start

did have a quick look - there are fewer examples but may go back there if this doesn't pan out

thanx

I have a previous version of my game engine using lime. It has a 2d opengl renderer, but you can change the projection to perspective and use more vertices for I cube I imagine. I can open source that and share it if you want.

trilateral3 is setup for rotating 2D shapes in 3D. I do not think lime is yet setup with 3D projection code within my libs, but it should be viable to look at relevant webgl code and compare with existing lime kitGL ones and fill in the missing as largely it is tweaking name spaces. https://nanjizal.github.io/trilateral3setup/binWebGL/ https://github.com/nanjizal/trilateral3setup

use keyboard to change perspective

maybe if interested can update but limited time

oh cool - thanx for this. I'll take a look

thanx for the offer - I won't trouble you to do that for the moment - I'll look at some of the other 3D stuff first

Is it a bad idea to try to learn Haxe and OpenFL by trying to port Red Ball to it? (It's source code is on https://speedrun.com/redball1/resources)

probably?

its usually best to start small, and a codebase youve never touched before is not small

not a bad idea if that's what you wanna do

I mean i have no Haxe experience I should probably follow the docs first

Learn the basics

Yes definitely learn the basics first

if you have programming experience in other languages, you might be able to just make something small to get familiar with the syntax before working on that

if not, you may want to add something between those two, like maybe trying to make a small baaic game

Probably a good idea

How different is Haxe with OpenFL to AS3?

the syntax is a little different, but the actual api should be roughly the same as the point of openfl is to implement the flash api

Makes sense

openfl is a direct copy of the as3 api so it should be quite familiar