Best way to achieve multiple, polished 2D lighting

General Discussions
#1

Hi,

I’m looking for a way to implement Normal mapping, Specular mapping, and Color mapping into an object in 2D space with GLSL shaders. I google’d some tutorials, and they were either hard to understand, the wrong version than the last one, or calculated in 3D. I was looking for a good way to implement this lighting into a game engine with multiple lights and different materials. Basically the best lighting possible.

Also, I’m trying to avoid openGL 3.0+, because I absolutely love the deprecated pipeline :), But if you can find a good tutorial on that, or even a book, I’m okay with learning modern openGL if absolutely necessary.

EDIT: Second time I put it in the wrong board, sorry!

#2

Why do you love the depricated pipeline so much? The programmable pipeline is so much better, and you will be very restricted if you don’t take advantage of it.

#3

Mainly because of how I’ve gotten used to it. I don’t mean immediate mode, I’ve moved past that. But I am learning the new pipeline pretty fast. Its just I’d rather learn something hard in a simplistic setting, rather than learning Matrix math, Vector math, Lighting, Additive Blending mechanics, and normal’s all at the same time.

I may be REALLY wrong, but I just need some direction on were to go next. I know the (basics of) interleaved VBOs, GLSL shaders (version 120), and matrix transformations.

#4

Why don’t you get everything working for a simple 2D no-lighting scenario (that means getting everything working with the modern pipeline: VBOs, Shaders, Textures, Matrices, etc.) before you start introducing more complex stuff.

#5

Thanks for the idea, but I still need some good tutorials that I don’t need too much knowledge on modern opengl before hand to learn.

#6

“very restricted” ?
Decades of OpenGL game developing were working fine without it.

#7

Compared to what we have access to today, he will be restricted. If we were having this discussion ten years ago, I would have told him to use the depricated pipeline because it would have been the best option back then.

#8

I just need something to learn for a 2D game engine. It needs multiple materials, and lights. With some kind of graphical effects to make it look like it took a while to make.

The main things I don’t like about the newer pipline is the matrix is handled by the shaders, rather than the glMatrixMode(*), and how the VBOs are pointed to the card. I just think its a bit overkill for a 2D game.

#9

For 2d game you can just use single camera matrix(view and projection) and handle all transformation at cpu. This way you can batch lot more agressively.

#10

That’s not a valid argument. It’s still restrictive as hell. There’s a reason why they’ve been adding functionality.