1604035 - SVG gradient has fuzzy stop offsets [D3D11]

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect, P3)

Description

[jbstrater]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0

Steps to reproduce:

Compare this codepen in Firefox vs. Chrome (latest versions of both browsers, latest version of Win10 64 bit): https://codepen.io/sidewayss/pen/BayzPbZ

Actual results:

The transition to and from full opacity is faded, fuzzy in Firefox, while it is correctly crisp and sudden in Chrome.

Comment 1

[jbstrater]

Here is a new codepen that illustrates the issue without the mask: https://codepen.io/sidewayss/pen/bGNwQXR

Comment 2

[jbstrater]

As you can see from these two variants of that last pen, the width of the element controls the degree of fuzziness:
https://codepen.io/sidewayss/pen/bGNwOGR
https://codepen.io/sidewayss/pen/BayLvaW

Comment 3

[jbstrater]

As this variant pen illustrates, it's not just opacity, but stop-color too. This is a general problem with stop-offset:
https://codepen.io/sidewayss/pen/MWYjZYB

Comment 4

[Robert Longson [:longsonr]]

Looks exactly the same to me. Presumably this is a Windows thing.

Comment 5

[Timothy Nikkel (:tnikkel)]

Can you paste your about: support? This might be webrender.

Comment 6

[jbstrater]

Application Basics

Name: Firefox
Version: 71.0
Build ID: 20191202093317
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0
OS: Windows_NT 10.0
Launcher Process: Enabled
Multiprocess Windows: 1/1 Enabled by default
Remote Processes: 7
Enterprise Policies: Inactive
Google Location Service Key: Found
Google Safebrowsing Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days

Firefox Features

Name: Firefox Screenshots
Version: 39.0.0
ID: [e-mail]

Name: Form Autofill
Version: 1.0
ID: [e-mail]

Name: Web Compat
Version: 6.4.0
ID: [e-mail]

Name: WebCompat Reporter
Version: 1.1.0
ID: [e-mail]

Remote Processes

Type: Web Content
Count: 5 / 8

Type: Extension
Count: 1

Type: GPU
Count: 1

Extensions

Name: Amazon.com
Version: 1.1
Enabled: true
ID: [e-mail]

Name: Bing
Version: 1.0
Enabled: true
ID: [e-mail]

Name: DuckDuckGo
Version: 1.0
Enabled: true
ID: [e-mail]

Name: Google
Version: 1.0
Enabled: true
ID: [e-mail]

Name: Twitter
Version: 1.0
Enabled: true
ID: [e-mail]

Name: Wikipedia (en)
Version: 1.0
Enabled: true
ID: [e-mail]

Security Software

Type: Bitdefender Antivirus Free Antimalware

Type:

Type: Windows Firewall

Graphics

Features
Compositing: Direct3D 11 (Advanced Layers)
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000ef3c) EGL_VERSION: 1.4 (ANGLE 2.1.0.21dccd386996) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_explicit_context
WebGL 1 Driver Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 630 Direct3D11 vs_5_0 ps_5_0)
WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.21dccd386996)
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WebGL 2 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000ef3c) EGL_VERSION: 1.4 (ANGLE 2.1.0.21dccd386996) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_explicit_context
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WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.21dccd386996)
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Direct2D: true
Off Main Thread Painting Enabled: true
Off Main Thread Painting Worker Count: 3
Target Frame Rate: 60
DirectWrite: true (10.0.18362.476)
GPU #1
Active: Yes
Description: Intel(R) HD Graphics 630
Vendor ID: 0x8086
Device ID: 0x5912
Driver Version: 26.20.100.7263
Driver Date: 9-25-2019
Drivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32
Subsys ID: 00000000
RAM: Unknown

Diagnostics
AzureCanvasBackend: direct2d 1.1
AzureCanvasBackend (UI Process): skia
AzureContentBackend: direct2d 1.1
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): none
CMSOutputProfile: 102776 bytes, too large
Display0: 1600x1200@60Hz
Display1: 1920x1080@59Hz
DisplayCount: 2
GPUProcessPid: 12784
ClearType Parameters: \.\DISPLAY1 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ] \.\DISPLAY2 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ]
Decision Log
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
WEBRENDER_QUALIFIED:
blocked-screen-too-large by env: Screen size too large

Media

Audio Backend: wasapi
Max Channels: 2
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:

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Comment 7

[jbstrater]

Sorry if that pasted info is too big - you did ask me to paste it. It looks to me that WebRender is turned off on my machine:
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
WEBRENDER_QUALIFIED:
blocked-screen-too-large by env: Screen size too large

possibly because of my dual monitor setup:
CMSOutputProfile: 102776 bytes, too large
Display0: 1600x1200@60Hz
Display1: 1920x1080@59Hz
DisplayCount: 2

If that is all the info you need I can delete the huge, pasted comment.

Comment 8

[Kris Taeleman (:ktaeleman)]

info: This only happens in the non-webrender codepath, with webrender enabled the border is sharp as expected.