Name: ioq3-renderer-bgfx
Brand: ioq3-renderer-bgfx
SKU: //jpcy/ioq3-renderer-bgfx
Rating: 2.1225 (149 reviews)

jpcy/ ioq3-renderer-bgfx

Objective-C

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Lua

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Shell

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jpcy

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GNU General Public License v2.0

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Description

A renderer for ioquake3 that uses bgfx.

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Jonathan Young jpcy

# 77,270

Lua

Shell

directx...

547 commits

Readme

ioq3-renderer-bgfx

This is a renderer for ioquake3 that uses bgfx to support multiple graphics APIs.

Minimum requirements: OpenGL 3.2 or Direct3D 11.

Features

Anti-aliasing - MSAA, SMAA
Soft sprites
Real dynamic lights, with extra dynamic lights for Q3A weapons - BFG, Lightning, Plasma, Railgun
Bloom

Screenshots

| Bloom | Extra Dynamic Lights | |---|---| | | |

| Planar Reflections | Soft Sprites | |---|---| | | |

Binaries

| Windows (x86) | Linux (x86_64) | |---------------------------------------------------------------------------------|--------------------------------------------------------------------------------|

These are updated after every commit.

Compiling

premake5 gmake

if premake5 is in your PATH. Otherwise,

./bin/premake5 gmake

to use the local copy of premake.

The generated makefiles are written to

build

Linux requirements

Packages: libgl1-mesa-dev libsdl2-dev

Cygwin/MinGW-w64/MSYS2 requirements

ioquake3 SDL2 libs and headers are required. Clone ioquake3 to the same parent directory as ioq3-renderer-bgfx.

Visual Studio

Use ioq3-premake-msvc.

Recompiling Shaders

Linux/Cygwin/MinGW-w64/MSYS2:

premake5 shaders

./bin/premake5 shaders

Visual Studio: run

bin/shaders.bat

Usage

Copy the renderer binaries from

build\bin_*

to where you have a ioquake3 test build installed.

Select the renderer in-game with

cl_renderer bgfx

followed by

vid_restart

Console Variables

Run the following console variables without any arguments to see a list of possible values.

Variable	Description
raa	Anti-aliasing.
rbackend	Rendering backend - OpenGL, Direct3D 9 etc.
rbgfxstats	Show bgfx statistics.
rbloom	Enable bloom.
rbloomScale	Scale the bloom effect.
rdynamicLightIntensity	Make dynamic lights brighter/dimmer.
rdynamicLightScale	Scale the radius of dynamic lights.
rextraDynamicLights	Enable extra dynamic lights on Q3A weapons.
rfastPath	Disables all optional features to improve performance.
rlerpTextureAnimation	Use linear interpolation on texture animation - flames, explosions.
rmaxAnisotropy	Enable anisotropic filtering.
rtextureVariation	Hide obvious texture tiling in a few Q3A maps.
rwaterReflections	Show planar water reflections. Only enabled on q3dm2 for now.

Console Commands

Command	Description
r_captureFrame	Capture a RenderDoc frame.
screenshotPNG

RenderDoc

The renderer must be built in debug mode -

make config=debug_x86

make config=debug_x86_64

Place the RenderDoc shared library -

renderdoc.dll

librenderdoc.so

- in the same directory as the renderer binary.

Use the

r_captureFrame

console command to capture a frame. Bind it to a key so the console doesn't show up in the capture.

Capture files will be saved to the same directory as the ioquake3 executable as

ioq3-renderer-bgfx_frameX.rdc

where X is the frame number.