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Added comments about requirement for bilinear filtering. (#5156, #3245) + Backends: SDL_Renderer: Explicitely call SDL_SetTextureScaleMode(). (#4927)

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ocornut
2022-04-07 14:28:08 +02:00
parent 2c03aac6d3
commit f7f30476d5
13 changed files with 18 additions and 6 deletions
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backends/imgui_impl_opengl3.cpp
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@ -539,6 +539,7 @@ bool ImGui_ImplOpenGL3_CreateFontsTexture()
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
// Upload texture to graphics system
// (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
GLint last_texture;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
glGenTextures(1, &bd->FontTexture);