Hello,
As promised - here is Relief mapping.
It is really hard to judge framerate impact compared with parallax mapping on my computer… I have 30 fps cap in Blender, i dont know why. Ill have to reinstall OS i guess.
This is very similar to steep parallax mapping, but i think it looks better… and also could be slower :).
3 pretty screenshots:
and a blend file: (RMB-click on link and Save As…)
Like I said before, this really should be hardcoded into Blender so it’s very accessable to artists because they won’t need python and can just use the Blender materials, plus then you can see it in the GLSL view. I tried the earlier version and found you need GLSL knowledge to control displacement amount and texture scale
Also, if you do that, this would also be a very nice feature for the Blender Internal renderer as it provides a good alternative to micropolygons. Just think of Blender having the same advanced shading techniques in the renderer, the 3D view, and the BGE.
All this really needs is to affect spot-lamp shadows in the BGE, then it will be perfect for hardcoding into Blender, and then it can be done to affect ray shadows just for the Internal renderer.
I know I may sound like a broken-record but I’m looking at making sure the Twilight22 shader devs. know of this.
this isn’t even technology anymore; this is magick… with a k - that means it’s the good stuff
I’m just stunned. I’ve never seen relief mapping before.
I think we had similiar rigs you’res being a bit faster, on my computer it’s running at 120fps fullscreen with like 6 copies of the plane on screen at once. that’s spectacular
the further I move away from the planes the faster it goes
so at a distance == 220fps
medium == 120fps
super duper close == 60fps
i’m using Jorgie’s optimized build of course so it’s probably a bit faster than on other builds
great!
looks like the framerate changes according the texture size - when mipmapping kicks in - the texture size gets reduced by half so the shader has less to calculate.
Thanks
Quite awesome martin. Just figured out how to remove the frame rate cap. I had to “Force off” my vertical sync in the NVidia control panel, and “Enable All Frames” to remove cap on frame rate. My framerates scale identically to kay_Eva’s.
You’ve got me worried now, because framerates on this are comparable to the iterative parallax mapping I did. I’ll have to throw this script at my walls and get a good comparison, I might have some major optimizing to do. Please let me know if you get the SSAO working with the shader! Then I can add it to the parallax methods. I’m afraid I’ll have to leave it to you for now though, I’ve got some other assignments for the time being.
I like your control mechanism and light icon, might have to steal it for future demos. That is if you don’t mind.
One thing I’m getting though, these weird lines when I get close. Could this be down to my graphic cards? I’m using two SLi enabled Nvidia GForce 8800 GTs. They have the latest drivers.
Martin, check to see if you have VSync ennabled in your video drivers, this could be whats ‘capping’ the frame rate by keeping it synced with your monitors refresh rate.
hope this might help.
edit:
argh didn’t notice, greatrel already pointed this out!
@greatrel
Thanks!
Well strange things are happening lately with my PC… looks like Nvidia control panel isnt affecting any application now… and i am sure my monitor`s refresh rate is 60Hz not 30 :)…
Anyway, it is recommended to reinstall OS once in a year.
@dusty ghost
Yes, you are right!
I havent find a way to get rid of those lines. I took those screenshots with Mipmapping disabled. Looks like it is a texture filtering problem at vertex edges.
Edit:
Hey and by the way, you can play with the values in the bottom of “relief.py”
amount of samples for displacement - shader.setUniform1i('linear_search_steps', 15)
amount of subsamples for each sample for displacement - shader.setUniform1i('binary_search_steps', 5)
change transparency of the shadow - shader.setUniform4f('ambient', 0.4, 0.4, 0.4, 1)
no, its recommended to re-install windows once a year at least[6 months is more optimal,
and I know guy’s that reinstall almost weekly]).
(in linux’s case, a new kernel release happens every 6 month’s…)
edit:
Have you tried anisotropic filtering(its supposed to make mip-mapping sharper) maybe it could fix the problem with the lines(not sure, just a guess from an artists…)
Awesome! Simply stunning! Works perfectly om my computer. Runs on 60FPS from long distance to super close (60FPS Cap). When one enter a martinsh-created topic you know that you are in for extreme eyecandy!
I get 7fps, so I guess it’s finally time to get a new computer. My laptop is over 3 years old, but at least I can see it working. Thanks a lot martinsh.
System:
Laptop
Vista 32 bit
1.66GHz centrino duo
NVIDIA GeForce Go 7600
2Gb RAM
Edit: Official 2.48a build… will this work faster with a new build?
