Offsetting .mdl UVs in real time.

[capnbubs]

Is there any way to offset a .mdl entity's texture in QC?

I want to be able to offset the uv by a certain amount in between frames of animation.

Thanks for reading.

[nahuel]

Is there any way to offset a .mdl entity's texture in QC?

I want to be able to offset the uv by a certain amount in between frames of animation.

Thanks for reading.

you can change skins via qc

[capnbubs]

I don't want to change the skins, I want to be able to shift the UVs of the model across so the texture will slide across the model.

[Spiney]

I guess you'll need a shader that does that.
Would be very useful for a lot of things btw.

[golden_boy]

You can use a skingroup to animate a texture in Quake without needing a shader.

To elaborate, that's not done in qc, that's a property of MDLs and I believe you need QME to do it. Not sure if any Blender exporter even supports that.

Shader might work as well, but that makes it incompatible with vanilla Quake.

[Spiney]

He's not talking about animated textures, he's talking about sliding/offsetting texture coördinates.

[golden_boy]

Yeah, but that results in the same thing, doesn't it?

If you want to move X pixels across a model's skin, using an animated texture might achieve that as well as moving the UVs around.

I brought up the possibility of skingroups because, no, there is no way in QC to move the UVs around.

[Spiney]

Animating it won't provide interpolated scrolling and will probably make file size ridiculous though, for a 128*128 texture that's 128 frames to have it look smooth. But yeah, better than nothing. Scrolling would still be awesome for stuff like veins or lavafalls.

[Spiney]

Here's a good example of when can be achieved with it
Simon schreibt.: Diablo 3 - Resource Bubbles

[golden_boy]

Yes, that would be very nice to have. The skingroup idea was just meant to provide a band aid, really, and it won't work the same way as real scrolling.

By the way, the pool ball trick linked from that page (http://www.voofoostudios.com/?p=33) is some advanced hacking. Very good read.

[talisa]

if you use DP you could use shaders to change the texture constantly

just like what webangel did with her amazing animated textures for ID1

also, shaders allow you to make a texture scrolling too.. least i think?
you used that for your version of prettywater didnt you webangel, make texture be scrolling?

[Spiney]

Should be able to do it with DP fairly easily, especially since it supports Q3 style shaders which are typical for that kind of stuff. (never made them myself so I might be talking out of my ass here)