diff options
| -rw-r--r-- | doc/classes/ProjectSettings.xml | 7 | ||||
| -rw-r--r-- | doc/classes/Viewport.xml | 3 | ||||
| -rw-r--r-- | servers/rendering/renderer_rd/renderer_scene_render_rd.cpp | 13 |
3 files changed, 19 insertions, 4 deletions
diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml index a2e202b218..af7aa296bf 100644 --- a/doc/classes/ProjectSettings.xml +++ b/doc/classes/ProjectSettings.xml @@ -1640,13 +1640,13 @@ Sets the number of MSAA samples to use (as a power of two). MSAA is used to reduce aliasing around the edges of polygons. A higher MSAA value results in smoother edges but can be significantly slower on some hardware. See also bilinear scaling 3d [member rendering/scaling_3d/mode] for supersampling, which provides higher quality but is much more expensive. </member> <member name="rendering/anti_aliasing/quality/screen_space_aa" type="int" setter="" getter="" default="0"> - Sets the screen-space antialiasing mode for the default screen [Viewport]. Screen-space antialiasing works by selectively blurring edges in a post-process shader. It differs from MSAA which takes multiple coverage samples while rendering objects. Screen-space AA methods are typically faster than MSAA and will smooth out specular aliasing, but tend to make scenes appear blurry. The blurriness can be counteracted to an extent by using a negative mipmap LOD bias ([member rendering/textures/default_filters/texture_mipmap_bias]). + Sets the screen-space antialiasing mode for the default screen [Viewport]. Screen-space antialiasing works by selectively blurring edges in a post-process shader. It differs from MSAA which takes multiple coverage samples while rendering objects. Screen-space AA methods are typically faster than MSAA and will smooth out specular aliasing, but tend to make scenes appear blurry. The blurriness is partially counteracted by automatically using a negative mipmap LOD bias (see [member rendering/textures/default_filters/texture_mipmap_bias]). Another way to combat specular aliasing is to enable [member rendering/anti_aliasing/screen_space_roughness_limiter/enabled]. </member> <member name="rendering/anti_aliasing/quality/use_debanding" type="bool" setter="" getter="" default="false"> </member> <member name="rendering/anti_aliasing/quality/use_taa" type="bool" setter="" getter="" default="false"> - Enables Temporal Anti-Aliasing for the default screen [Viewport]. TAA works by jittering the camera and accumulating the images of the last rendered frames, motion vector rendering is used to account for camera and object motion. Enabling TAA can make the image blurrier, which can be counteracted to an extent by using a negative mipmap LOD bias ([member rendering/textures/default_filters/texture_mipmap_bias]). + Enables Temporal Anti-Aliasing for the default screen [Viewport]. TAA works by jittering the camera and accumulating the images of the last rendered frames, motion vector rendering is used to account for camera and object motion. Enabling TAA can make the image blurrier, which is partially counteracted by automatically using a negative mipmap LOD bias (see [member rendering/textures/default_filters/texture_mipmap_bias]). [b]Note:[/b] The implementation is not complete yet, some visual instances such as particles and skinned meshes may show artifacts. </member> <member name="rendering/anti_aliasing/screen_space_roughness_limiter/amount" type="float" setter="" getter="" default="0.25"> @@ -1949,7 +1949,8 @@ [b]Note:[/b] This property is only read when the project starts. There is currently no way to change this setting at run-time. </member> <member name="rendering/textures/default_filters/texture_mipmap_bias" type="float" setter="" getter="" default="0.0"> - Affects the final texture sharpness by reading from a lower or higher mipmap (also called "texture LOD bias"). Negative values make mipmapped textures sharper but grainier when viewed at a distance, while positive values make mipmapped textures blurrier (even when up close). To get sharper textures at a distance without introducing too much graininess, set this between [code]-0.75[/code] and [code]0.0[/code]. Enabling temporal antialiasing ([member rendering/anti_aliasing/quality/use_taa]) can help reduce the graininess visible when using negative mipmap bias. + Affects the final texture sharpness by reading from a lower or higher mipmap (also called "texture LOD bias"). Negative values make mipmapped textures sharper but grainier when viewed at a distance, while positive values make mipmapped textures blurrier (even when up close). + Enabling temporal antialiasing ([member rendering/anti_aliasing/quality/use_taa]) will automatically apply a [code]-0.5[/code] offset to this value, while enabling FXAA ([member rendering/anti_aliasing/quality/screen_space_aa]) will automatically apply a [code]-0.25[/code] offset to this value. If both TAA and FXAA are enbled at the same time, an offset of [code]-0.75[/code] is applied to this value. [b]Note:[/b] If [member rendering/scaling_3d/scale] is lower than [code]1.0[/code] (exclusive), [member rendering/textures/default_filters/texture_mipmap_bias] is used to adjust the automatic mipmap bias which is calculated internally based on the scale factor. The formula for this is [code]log2(scaling_3d_scale) + mipmap_bias[/code]. [b]Note:[/b] This property is only read when the project starts. To change the mipmap LOD bias at run-time, set [member Viewport.texture_mipmap_bias] instead. </member> diff --git a/doc/classes/Viewport.xml b/doc/classes/Viewport.xml index 93e7e20f5a..0071834ccd 100644 --- a/doc/classes/Viewport.xml +++ b/doc/classes/Viewport.xml @@ -266,7 +266,8 @@ <member name="snap_2d_vertices_to_pixel" type="bool" setter="set_snap_2d_vertices_to_pixel" getter="is_snap_2d_vertices_to_pixel_enabled" default="false"> </member> <member name="texture_mipmap_bias" type="float" setter="set_texture_mipmap_bias" getter="get_texture_mipmap_bias" default="0.0"> - Affects the final texture sharpness by reading from a lower or higher mipmap (also called "texture LOD bias"). Negative values make mipmapped textures sharper but grainier when viewed at a distance, while positive values make mipmapped textures blurrier (even when up close). To get sharper textures at a distance without introducing too much graininess, set this between [code]-0.75[/code] and [code]0.0[/code]. Enabling temporal antialiasing ([member ProjectSettings.rendering/anti_aliasing/quality/use_taa]) can help reduce the graininess visible when using negative mipmap bias. + Affects the final texture sharpness by reading from a lower or higher mipmap (also called "texture LOD bias"). Negative values make mipmapped textures sharper but grainier when viewed at a distance, while positive values make mipmapped textures blurrier (even when up close). + Enabling temporal antialiasing ([member use_taa]) will automatically apply a [code]-0.5[/code] offset to this value, while enabling FXAA ([member screen_space_aa]) will automatically apply a [code]-0.25[/code] offset to this value. If both TAA and FXAA are enbled at the same time, an offset of [code]-0.75[/code] is applied to this value. [b]Note:[/b] If [member scaling_3d_scale] is lower than [code]1.0[/code] (exclusive), [member texture_mipmap_bias] is used to adjust the automatic mipmap bias which is calculated internally based on the scale factor. The formula for this is [code]log2(scaling_3d_scale) + mipmap_bias[/code]. To control this property on the root viewport, set the [member ProjectSettings.rendering/textures/default_filters/texture_mipmap_bias] project setting. </member> diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp b/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp index d8499681ad..b8e74683de 100644 --- a/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp +++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp @@ -2459,6 +2459,19 @@ void RendererSceneRenderRD::render_buffers_configure(RID p_render_buffers, RID p p_internal_width = p_width; } + if (p_use_taa) { + // Use negative mipmap LOD bias when TAA is enabled to compensate for loss of sharpness. + // This restores sharpness in still images to be roughly at the same level as without TAA, + // but moving scenes will still be blurrier. + p_texture_mipmap_bias -= 0.5; + } + + if (p_screen_space_aa == RS::VIEWPORT_SCREEN_SPACE_AA_FXAA) { + // Use negative mipmap LOD bias when FXAA is enabled to compensate for loss of sharpness. + // If both TAA and FXAA are enabled, combine their negative LOD biases together. + p_texture_mipmap_bias -= 0.25; + } + material_storage->sampler_rd_configure_custom(p_texture_mipmap_bias); update_uniform_sets(); |