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UI: Add Input descriptions for Principled BSDF parameters #119131

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Brecht Van Lommel merged 2 commits from Bartosz-Kosiorek/blender:desc into main 2024-03-06 18:24:32 +01:00
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Bartosz Kosiorek commented 2024-03-06 17:16:51 +01:00
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The BSDF Principled is a default shader.
It is missing Input descriptions, which cause confusion for beginners.
Instead of description there is only message:

  Input value used for unconnected socket.

Which is unclear for beginners.

With this commit the Input parameters are described for BSDG Principled.
It is now eadier to understand the meanings of Input Parameters.

The BSDF Principled is a default shader. It is missing Input descriptions, which cause confusion for beginners. Instead of description there is only message: ``` Input value used for unconnected socket. ``` Which is unclear for beginners. With this commit the Input parameters are described for BSDG Principled. It is now eadier to understand the meanings of Input Parameters.
Screenshot 2024-03-06.png
34 KiB
Screenshot after fix with description.png
85 KiB
Screenshot 2024-03-06.png Screenshot after fix with description.png
👍 1 ❤️ 3
Bartosz Kosiorek requested review from Omar Emara 2024-03-06 17:19:32 +01:00
Bartosz Kosiorek requested review from Brecht Van Lommel 2024-03-06 17:20:43 +01:00
Brecht Van Lommel requested review from Lukas Stockner 2024-03-06 17:22:11 +01:00
Brecht Van Lommel removed review request for Omar Emara 2024-03-06 17:22:12 +01:00
Brecht Van Lommel requested review from Weizhen Huang 2024-03-06 17:22:12 +01:00
Hans Goudey changed title from Fix: Add Input description for BSDF Principled parameters. to UI: Add Input descriptions for Principled BSDF parameters 2024-03-06 17:31:07 +01:00
Bartosz Kosiorek force-pushed desc from 156334b358 to dcd995991d 2024-03-06 17:54:20 +01:00 Compare
Bartosz Kosiorek force-pushed desc from dcd995991d to f50cc052ad 2024-03-06 17:57:33 +01:00 Compare
Brecht Van Lommel added 1 commit 2024-03-06 18:21:14 +01:00
Brecht Van Lommel approved these changes 2024-03-06 18:21:56 +01:00
Brecht Van Lommel left a comment
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Thanks!

Thanks!
Brecht Van Lommel merged commit bfee43a5c9 into main 2024-03-06 18:24:32 +01:00
Brecht Van Lommel deleted branch desc 2024-03-06 18:24:34 +01:00
Hans Goudey reviewed 2024-03-06 18:28:12 +01:00
Hans Goudey left a comment
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Some of these are much more detailed than typical descriptions (for example "The default value of 1.5 is a good approximation for glass" isn't something we'd usually write in a tooltip). But this is such a common node that maybe it's fine. It is probably helpful anyway.

Some of these are much more detailed than typical descriptions (for example "The default value of 1.5 is a good approximation for glass" isn't something we'd usually write in a tooltip). But this is such a common node that maybe it's fine. It is probably helpful anyway.
source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@ -98,0 +117,4 @@
.description(
"Directionanltiy of volume scattering within the subsurface medium. "
"Zero scatters uniformly in all directions, with higher values "
"scattering more strongly forward. For example skin has been measured "
Hans Goudey commented 2024-03-06 18:26:24 +01:00
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For example -> For example,

`For example` -> `For example,`
Bartosz-Kosiorek marked this conversation as resolved
source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@ -135,2 +163,3 @@
.max(1.0f)
.subtype(PROP_FACTOR);
.subtype(PROP_FACTOR)
.description("Rotates the direction of anisotropy, with 1.0 going full circle");
Hans Goudey commented 2024-03-06 18:25:50 +01:00
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going full circle -> meaning a full rotation

`going full circle` -> `meaning a full rotation`
Weizhen Huang commented 2024-03-06 21:38:30 +01:00
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Still not quite clear to me. Might be better to change the unit of the input to degrees, but it's out of scope of this patch.

Still not quite clear to me. Might be better to change the unit of the input to degrees, but it's out of scope of this patch.
Bartosz-Kosiorek marked this conversation as resolved
source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@ -225,1 +256,3 @@
.short_label("Strength");
.short_label("Strength")
.description(
"Strength of the emitted light. A value of 1.0 will ensure "
Hans Goudey commented 2024-03-06 18:25:21 +01:00
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  • will ensure -> ensures
- `will ensure` -> `ensures`
Bartosz-Kosiorek marked this conversation as resolved
Weizhen Huang reviewed 2024-03-06 22:01:50 +01:00
source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@ -43,1 +54,3 @@
b.add_input<decl::Float>("IOR").default_value(1.5f).min(1.0f).max(1000.0f);
b.add_input<decl::Float>("IOR").default_value(1.5f).min(1.0f).max(1000.0f).description(
"Index of refraction for specular reflection and transmission. "
"For most materials, the IOR is between 1.0 (vacuum and air) and 4.0 (germanium). "
Weizhen Huang commented 2024-03-06 21:58:53 +01:00
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This sentence doesn't appear in the manual. Is it taken from somewhere else?

This sentence doesn't appear in the manual. Is it taken from somewhere else?
Bartosz Kosiorek commented 2024-03-06 23:25:33 +01:00
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https://en.m.wikipedia.org/wiki/List_of_refractive_indices

https://en.m.wikipedia.org/wiki/List_of_refractive_indices
Bartosz-Kosiorek marked this conversation as resolved
source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@ -97,1 +116,3 @@
.short_label("Anisotropy");
.short_label("Anisotropy")
.description(
"Directionanltiy of volume scattering within the subsurface medium. "
Weizhen Huang commented 2024-03-06 22:01:14 +01:00
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Directionality

Directionality
Bartosz-Kosiorek marked this conversation as resolved
source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@ -137,2 +166,3 @@
#define SOCK_ANISOTROPIC_ROTATION_ID 15
spec.add_input<decl::Vector>("Tangent").hide_value();
spec.add_input<decl::Vector>("Tangent").hide_value().description(
"Controls the tangent line for the Anisotropic layer");
Weizhen Huang commented 2024-03-06 21:49:29 +01:00
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"Controls the tangent direction for anisotropy"
tangent direction is not the same as tangent line, and anisotropic is not a layer.

"Controls the tangent direction for anisotropy" tangent direction is not the same as tangent line, and anisotropic is not a layer.
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Reference: blender/blender#119131
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