LÖVE

Hopefully for the next release of love we can distort our sprites like in the pictures below. Lots of potential for doing simple 3d things like the classic gta1 buildings.

Good idea.

Well there's already been some talk of taking the image and slicing it up and scaling the individual rows. Which might be effective for now. But this would be an interesting feature. Please add it to the feature tracker:

http://love2d.org/forum/tracker.php?p=2

Yes!

One of those images was from GTA 1 or 2 which uses an ordinary 3D rasterizer to render its scene. Why on earth would you want to have an image distortion API to achieve the same effect with much more code and much slower performance whenever OpenGL itself will do the rasterization for you if you just express your scene in actual 3D geometry?

hdon wrote:One of those images was from GTA 1 or 2 which uses an ordinary 3D rasterizer to render its scene. Why on earth would you want to have an image distortion API to achieve the same effect with much more code and much slower performance whenever OpenGL itself will do the rasterization for you if you just express your scene in actual 3D geometry?

Uh, so I guess you're talking with OP?

LOVE uses OpenGL...

qubodup wrote:LOVE uses OpenGL...

Yes, it does, and that's my *point.* Why would you want to write your own vertex rasterizer using a 2D image transformation API, only to send those vertices off to OpenGL anyway? It would be slower and more complicated!

hdon wrote:

qubodup wrote:LOVE uses OpenGL...

Yes, it does, and that's my *point.* Why would you want to write your own vertex rasterizer using a 2D image transformation API, only to send those vertices off to OpenGL anyway? It would be slower and more complicated!

Care to show how it's done quickly?

hdon wrote:Yes, it does, and that's my *point.* Why would you want to write your own vertex rasterizer using a 2D image transformation API, only to send those vertices off to OpenGL anyway? It would be slower and more complicated!

Because LOVE doesn't support it.

qubodup wrote:

hdon wrote:Yes, it does, and that's my *point.* Why would you want to write your own vertex rasterizer using a 2D image transformation API, only to send those vertices off to OpenGL anyway? It would be slower and more complicated!

Because LOVE doesn't support it.

I'm saying this is a flaw in LOVE. I do get it. I see the attraction of focusing on a 2D graphics API, I really do. But people are going to want to make 3D games. Using a 2D deformation API to regain the powers you would have if OpenGL were just exposed to you directly is what we call a reach around and in my experience (because FOSS tends to give users what they actually want as opposed to what some executive thinks they should have) I have found that this is something people only tolerate because their boss has told them they have to write code for some crappy proprietary platform.

Xcmd wrote:Care to show how it's done quickly?

Just use ordinary OpenGL! To achieve 2D graphics with OpenGL, LOVE simply uses an orthogonal projection matrix and more or less ignores the Z component of OpenGL vertex coordinates. See how Processing handles this.