Search found 103 matches

by Vincent
24 Oct 2016, 03:46
Forum: Coding
Topic: Vulkan support
Replies: 54
Views: 29121

Re: Vulkan support

I'm making some progress on the 3d part (terrain rendering actually). Hopefully I can have something "good enough" in a week or 2 that could be candidate for merge. Since I'm focusing on introducing a layer between current code and GL callbacks it won't actually bring any performance difference ; ho...
by Vincent
16 Oct 2016, 00:24
Forum: Artwork
Topic: Batched texture conversion to ktx ?
Replies: 2
Views: 2272

Batched texture conversion to ktx ?

Hi, in order to support mipmapping in Vulkan and use some advanced textures compression scheme (BC6/7) or layout (texture array or cube texture) Warzone 2100 textures will need to be converted to a more 3d graphic friendly format before being loaded by the game. Currently all textures are stored in ...
by Vincent
15 Oct 2016, 18:30
Forum: Coding
Topic: Vulkan support
Replies: 54
Views: 29121

Re: Vulkan support

There's nothing to see currently, only the menu is displayed so it's hard to know how well performance will be. Plus there are a lot of glitches (no alpha blending so black boxes around letter for instance). I can't comment on Dota2, I'm also having some very small freeze especially at the beginning...
by Vincent
13 Oct 2016, 22:43
Forum: Coding
Topic: Vulkan support
Replies: 54
Views: 29121

Re: Vulkan support

Actually adding Vulkan support is taking more time than I initially expected. I have basic 2d menu support atm but the modifications are huge. The issue is that wz2100 quietly assumes OpenGL support in a lot of place. Blending depth stencil modifications are often spread in separate place and textur...
by Vincent
13 Oct 2016, 17:09
Forum: Coding
Topic: Per pixel lighting
Replies: 9
Views: 4469

Re: Per pixel lighting

I'd like to keep GL2.1 compatibility as long as possible. Using GL 3.3 would make dev easier with uniform buffer objects but I think it can be possible to simplify thing by using some compile time reflection.
On the other hand a vulkan backend could be used to implement some advanced technics.
by Vincent
11 Oct 2016, 16:37
Forum: Coding
Topic: Per pixel lighting
Replies: 9
Views: 4469

Re: Per pixel lighting

Actually clustered renderer is a forward rendering technic. Deferred rendering trades shader flexibility for the ability to render lots of small point light and has an heavy bandwidth requirement (due to gbuffer storage and access) ; it also makes MSAA impractical. Clustered rendering technic on the...
by Vincent
08 Oct 2016, 19:22
Forum: Coding
Topic: CMake as a build tool ?
Replies: 6
Views: 3234

Re: CMake as a build tool ?

What do you mean ? Windows and Linux build of cmake works for several project.
WZ2100 doesn't have a cmake build atm.
by Vincent
07 Oct 2016, 23:34
Forum: Coding
Topic: CMake as a build tool ?
Replies: 6
Views: 3234

CMake as a build tool ?

Currently wz2100 is using autotools on Linux and Mac and a separate .sln for MSVC. Maintaining 2 build systems is usually quite tedious and is error prone, that's why a lots of c++ project use cmake. A couple of weeks ago Microsoft announced the vcpkg project which is an "apt-get source" like tools ...
by Vincent
06 Oct 2016, 22:52
Forum: Coding
Topic: Per pixel lighting
Replies: 9
Views: 4469

Re: Per pixel lighting

Explosions will be per pixel, sorry I wasn't clear. Fog of war will remain texture based, it's rather a gameplay feature than a visual one. I've mostly finished working on it, it's not ready for usage (I didn't add safety check in shader for buffer bounds so gpu often crashes) but I can détails the ...
by Vincent
02 Oct 2016, 00:56
Forum: Coding
Topic: Per pixel lighting
Replies: 9
Views: 4469

Per pixel lighting

Hi, since I removed all legacy fixed function in my branch I'm playing with WZ lighting. I'm currently implementing per pixel lighting : currently at map loading time an illumination value is computed and stored for every tile (note: it's direct illumination ie dot product between sun position and t...
by Vincent
30 Sep 2016, 17:54
Forum: Technical Help / Troubleshooting
Topic: 3k or 4k Resolution Solution?
Replies: 5
Views: 7097

Re: 3k or 4k Resolution Solution?

It's fixed in my branch. To be honest I don't really know why, but I don't understand why 4k is broken with fixed functions. Maybe drivers make matrix computations on float16 for performance ?
by Vincent
27 Sep 2016, 22:24
Forum: Coding
Topic: Vulkan support
Replies: 54
Views: 29121

Re: Vulkan support

Yes, it runs on Nvidia/AMD cards released after 2012 and Intel Skylake (core iX-6xxx) and Broadwell (core iX-5XXX) on Windows and Linux. Linux drivers have some sort of support for Haswell and Ivy Bridge too but it's considered experimental. On Android side afaik only Galaxy S7 and Note 7 and latest...
by Vincent
27 Sep 2016, 01:37
Forum: Coding
Topic: Vulkan support
Replies: 54
Views: 29121

Vulkan support

I'm intending to add a Vulkan backend to Warzone 2100. Obviously the goal is not to reduce cpu overhead since the game doesn't draw a lot of thing on screen at the moment (there's around 100-200 draw call per frame), but to improve current code architecture. WZ codebase could be described as state o...
by Vincent
25 Sep 2016, 20:46
Forum: Coding
Topic: Modernizing codebase allowed?
Replies: 12
Views: 4702

Re: Modernizing codebase allowed?

Not trivial. The codebase is quite convoluted, some object are stored in a list that could be parsed twice but it will require some works.
by Vincent
24 Sep 2016, 22:18
Forum: Coding
Topic: Modernizing codebase allowed?
Replies: 12
Views: 4702

Re: Modernizing codebase allowed?

I've added shaders for water and terrain, I think only shadows are the only remaining effect that use fixed function pipeline.