OpenGL: Difference between revisions
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Note:To enables Rudimentary Shadows r_shadows must be set to 1
Note:Rudimentary Shadows in Half-Life were add in the 25th Anniversary update.
Note:Water ripple from Quake replace by Water waves but not in Software Renderer the water ripple is used.
Note:To enables Rudimentary Shadows r_shadows must be set to 1
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== {{src|4|nt=4}} OpenGL== | == {{src|4|nt=4}} OpenGL== | ||
[[OpenGL]] uses [[togl]] converts [[DirectX_Versions|DirectX]] shaders to [[OpenGL]] for {{mac|3}} and {{Linux|3}} | [[OpenGL]] uses [[togl]] converts [[DirectX_Versions|DirectX]] shaders to [[OpenGL]] for {{mac|3}} and {{Linux|3}}. Additionally, {{hammer|3}} uses OpenGL to render the 2D and 3D viewports. | ||
===[[DirectX_Versions|Dxlevel 92]]=== | ===[[DirectX_Versions|Dxlevel 92]]=== | ||
[[DirectX_Versions|Dxlevel 92]] is the [[OpenGL]] equivalent to [[DirectX_Versions|DirectX 9]] (Dx9) | [[DirectX_Versions|Dxlevel 92]] is the [[OpenGL]] equivalent to [[DirectX_Versions|DirectX 9]] (Dx9) | ||
Revision as of 09:23, 6 April 2024
Todo: Write about custom OpenGL renderer in 
Xash3D/
Paranoia/
Cry of Fear and etc. (possibly also 
Counter-Strike Neo?)
Xash3D/ Paranoia/ Cry of Fear and etc. (possibly also Counter-Strike Neo?)OpenGL is a 3D graphics API, which is used by the hardware renderers of 
GoldSrc and 
id Tech 2, as well as some 
Source 2 games. It is also used on 
Source engine, for systems that doesn't support Direct3D (
macOS and 
Linux), as well as in 
Hammer 4.x.
Id Tech 2 Engine (GLQuake) OpenGL
Screenshot in-game of Quake GLQuake, using OpenGL.
Quake GLQuake, using OpenGL.Features
- Experimented Reflections
- Transparent Water
- Rudimentary Shadows
Note:To enables Rudimentary Shadows r_shadows must be set to 1Note:Rudimentary Shadows in Half-Life were add in the 25th Anniversary update.- Texture Filtering
- Water ripple
- 32-bit color
- Support for different resolutions
GoldSrc OpenGL
Screenshot in-game of 
Half-Life, using OpenGL.
Half-Life, using OpenGL.Features
- Colored lighting - Quake simply had monotone lighting
- Transparent textures - Glass can now be used in maps
- Water waves
Note:Water ripple from Quake replace by Water waves but not in Software Renderer the water ripple is used.- Texture Filtering - Quake (GLQuake) simply Texture Filtering
- Detailed textures
Since 2013 SteamPipe Update
- FBO renderer - A new method of rendering the game, which allows MSAA to work with GoldSrc engine. This also allows the game to run on fullscreen with borderless windowed.
- MSAA anti-aliasing - GoldSrc now natively support anti-aliasing, specifically, MSAA 4X, which is enabled by default on most modern hardwares. This will reduce the amount of jagged edges/staircases effect on the geometry.
Since 25th Anniversary
- Rudimentary Shadows
Note:To enables Rudimentary Shadows r_shadows must be set to 1 Source engine OpenGL
OpenGL uses togl converts DirectX shaders to OpenGL for macOS and Linux. Additionally, Hammer uses OpenGL to render the 2D and 3D viewports.
Dxlevel 92
Dxlevel 92 is the OpenGL equivalent to DirectX 9 (Dx9)
Features
- Refractions with the use of a bump-map
- High-quality reflective water (used frequently)
- Softer edge dynamic shadows
- Normal-mapped lighting on models
- Improved-quality specular effects
- High dynamic range rendering (disabled by default)
- Phong shading
- Color Correction
- Motion Blur
Dxlevel 97
Dxlevel 97 is the OpenGL equivalent to DirectX 9 Shader Model 3 (Dx9.0c)
Features
- Lightwarp support
- High dynamic range rendering (enabled by default)
