Backends: amend comments to state that bilinear filtering is required ahead of 1.93.

backends/imgui_impl_allegro5.cpp

@@ -268,8 +268,7 @@ void ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex)
         IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
         IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
 
-        // Create texture
+        // Create texture (bilinear sampling is required)
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
         const int new_bitmap_flags = al_get_new_bitmap_flags();
         int new_bitmap_format = al_get_new_bitmap_format();
         al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP | ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR);

backends/imgui_impl_dx10.cpp

@@ -557,8 +557,7 @@ bool    ImGui_ImplDX10_CreateDeviceObjects()
         bd->pd3dDevice->CreateDepthStencilState(&desc, &bd->pDepthStencilState);
     }
 
-    // Create texture sampler
+    // Create texture sampler (bilinear sampling is required)
-    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
     {
         D3D10_SAMPLER_DESC desc;
         ZeroMemory(&desc, sizeof(desc));

backends/imgui_impl_dx12.cpp

@@ -608,7 +608,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
         param[1].DescriptorTable.pDescriptorRanges = &descRange;
         param[1].ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
 
-        // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
+        // Bilinear sampling is required
         D3D12_STATIC_SAMPLER_DESC staticSampler[1] = {};
         staticSampler[0].Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
         staticSampler[0].AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;

backends/imgui_impl_metal.mm

@@ -584,7 +584,7 @@ void ImGui_ImplMetal_Shutdown()
     return [[MetalBuffer alloc] initWithBuffer:backing];
 }
 
-// Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
+// Bilinear sampling is required.
 - (id<MTLRenderPipelineState>)renderPipelineStateForFramebufferDescriptor:(FramebufferDescriptor*)descriptor device:(id<MTLDevice>)device
 {
     NSError* error = nil;

backends/imgui_impl_opengl2.cpp

@@ -276,8 +276,7 @@ void ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex)
         const void* pixels = tex->GetPixels();
         GLuint gl_texture_id = 0;
 
-        // Upload texture to graphics system
+        // Upload texture to graphics system (bilinear sampling is required).
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
         GLint last_texture;
         GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
         GL_CALL(glGenTextures(1, &gl_texture_id));

backends/imgui_impl_opengl3.cpp

@@ -689,8 +689,7 @@ void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
         const void* pixels = tex->GetPixels();
         GLuint gl_texture_id = 0;
 
-        // Upload texture to graphics system
+        // Upload texture to graphics system (bilinear sampling is required).
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
         GLint last_texture;
         GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
         GL_CALL(glGenTextures(1, &gl_texture_id));

backends/imgui_impl_sdlgpu3.cpp

@@ -591,7 +591,7 @@ void ImGui_ImplSDLGPU3_CreateDeviceObjects()
 
     if (bd->TexSamplerLinear == nullptr)
     {
-        // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
+        // Bilinear sampling is required.
         SDL_GPUSamplerCreateInfo sampler_info = {};
         sampler_info.min_filter = SDL_GPU_FILTER_LINEAR;
         sampler_info.mag_filter = SDL_GPU_FILTER_LINEAR;

backends/imgui_impl_sdlrenderer2.cpp

@@ -213,8 +213,7 @@ void ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex)
         IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
         IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
 
-        // Create texture
+        // Create texture (bilinear sampling is required)
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
         SDL_Texture* sdl_texture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, tex->Width, tex->Height);
         IM_ASSERT(sdl_texture != nullptr && "Backend failed to create texture!");
         SDL_UpdateTexture(sdl_texture, nullptr, tex->GetPixels(), tex->GetPitch());

backends/imgui_impl_sdlrenderer3.cpp

@@ -242,8 +242,7 @@ void ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex)
         IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
         IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
 
-        // Create texture
+        // Create texture (bilinear sampling is required)
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
         SDL_Texture* sdl_texture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, tex->Width, tex->Height);
         IM_ASSERT(sdl_texture != nullptr && "Backend failed to create texture!");
         SDL_UpdateTexture(sdl_texture, nullptr, tex->GetPixels(), tex->GetPitch());

backends/imgui_impl_vulkan.cpp

@@ -1153,8 +1153,7 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
         check_vk_result(err);
     }
 
-    // Create samplers
+    // Create samplers (bilinear sampling is required)
-    // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
     if (!bd->SamplerLinear || !bd->SamplerNearest)
     {
         VkSamplerCreateInfo info = {};

backends/imgui_impl_wgpu.cpp

@@ -844,8 +844,7 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
 
     ImGui_ImplWGPU_CreateUniformBuffer();
 
-    // Create samplers (Linear/Nearest)
+    // Create samplers (Linear/Nearest) (bilinear sampling is required)
-    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
     WGPUSamplerDescriptor sampler_desc = {};
     sampler_desc.addressModeU = WGPUAddressMode_ClampToEdge;
     sampler_desc.addressModeV = WGPUAddressMode_ClampToEdge;

docs/BACKENDS.md

@@ -234,9 +234,7 @@ void MyImGuiBackend_RenderDrawData(ImDrawData* draw_data)
     // - Scissor enabled
     MyEngineSetupenderState();
 
-    // TODO: Setup texture sampling state
+    // TODO: Setup texture sampler to bilinear (NOT point/nearest filtering).
-    // - Sample with bilinear filtering (NOT point/nearest filtering).
-    // - Use 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines;' to allow point/nearest filtering.
 
     // TODO: Setup viewport covering draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize