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Implement support for FSAA in combination with post-processing (#15392)

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- Actually it's MSAA I think, or perhaps the terms are equivalent
- I've made it fit into the existing Irrlicht architecture, but that has resulted in code duplication compared to my original "hacky" approach
- OpenGL 3.2+ and OpenGL ES 3.1+ are supported
- EDT_OPENGL3 is not required, EDT_OPENGL works too
- Helpful tutorial: https://learnopengl.com/Advanced-OpenGL/Anti-Aliasing, section "Off-screen MSAA"
- This may be rough around the edges, but in general it works
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grorp 2024-11-18 14:06:48 +01:00 • committed by GitHub
parent a8ea165042
commit 9b6a399011
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23 changed files with 290 additions and 42 deletions
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irr/src/OpenGLES2/Driver.cpp
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@ -124,6 +124,7 @@ void COpenGLES2Driver::initFeatures()
const bool MRTSupported = Version.Major >= 3 || queryExtension("GL_EXT_draw_buffers");
AnisotropicFilterSupported = queryExtension("GL_EXT_texture_filter_anisotropic");
BlendMinMaxSupported = (Version.Major >= 3) || FeatureAvailable[IRR_GL_EXT_blend_minmax];
TextureMultisampleSupported = isVersionAtLeast(3, 1);
const bool TextureLODBiasSupported = queryExtension("GL_EXT_texture_lod_bias");
// COGLESCoreExtensionHandler::Feature