godot-简单的斯派德着色器结果太亮了（未展示，习惯）

发布于 2025-02-05 18:41:09 字数 1431 浏览 1 评论 0原文

tl：dr

在编写自定义空间着色器 aberedo颜色不是输出颜色，即使render_mode unhanded << /代码>已设置。

长篇小说

我在Godot v3.4.4.stable.official [419E713A2]中创建了一个新项目，并简单地添加了两个CSGBOX。

对于留下一个，我分配了空间材料，并将其设置为 unhaded ，并分配了 abredo纹理（见下文）。结果是预期的。

但是，对于，我分配了 shadermaterial ，并写下了以下简单，着色器：

shader_type spatial;
render_mode unshaded;

uniform sampler2D albedo;

void fragment() {
  ALBEDO = texture(albedo, UV).rgb;
}

在将相同的纹理分配给abredo 着色器参数，结果太亮了。我已经尝试了几个render_modes，例如镜面和其他内容，例如纹理导入设置，但无法弄清楚如何获得与左盒相同的结果。

纹理

结果

左侧：左侧：正如预期使用空间材料，右侧：使用shadermaterial

示例项目

好吧，这没什么大的，但是如果您想看看： https> https： //files.catbox.moe/nj407g.zip

预先感谢您❤

原文

TL:DR

When writing a custom spatial shader the ALBEDO color isn't the output color, even if render_mode unshaded is set.

Long story

I created a new project in Godot v3.4.4.stable.official [419e713a2] and simply added two CSGBox.

For the left one I assigned a SpatialMaterial and set it to unshaded and assigned an albedo texture (see below). The result is as expected.

However, for the right one I assigned a ShaderMaterial and wrote the following, very simple, shader:

shader_type spatial;
render_mode unshaded;

uniform sampler2D albedo;

void fragment() {
  ALBEDO = texture(albedo, UV).rgb;
}

After assigning the same texture to the albedo shader parameter, the result is a lot too bright. I already tried several render_modes, variables such as SPECULAR and other things like texture import settings, but couldn't figure out how to get the same result as the left box.

The texture

The result

Left side: As expected using SpatialMaterial, Right side: Too bright using ShaderMaterial

Sample project

Well, it's nothing big, but if you want to take a look: https://files.catbox.moe/nj407g.zip

Thank you in advance ❤

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无语# 2025-02-12 18:41:09

这是教程和解释中通常会忽略的：添加hint_albedo告诉戈多特对线性转换进行SRGB。关于“ noreferrer”> perentions：

重要的是要了解，作为颜色提供的纹理需要提示适当的srgb-＆gt;线性转换（即hint_albedo），因为Godot的3D引擎在线性色彩空间中呈现。
。

因此，更改此行：

uniform sampler2D albedo;

对此：

uniform sampler2D albedo:hint_albedo;

它应该给您预期的结果。

This is something that is often dismissed in tutorials and explanations: Adding hint_albedo tells Godot to do an sRGB to linear conversion. The documentation about uniforms mentions:

It's important to understand that textures that are supplied as color require hints for proper sRGB->linear conversion (i.e. hint_albedo), as Godot's 3D engine renders in linear color space.

So change this line: