Shadow Generations Shaders - BlendDetail dndnd: Difference between revisions

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Latest revision as of 12:17, 25 August 2025

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Overview

Shader Behavior Overview

Shader model:

[2] Standard (PBR)
Does not support:

An advanced PBR shader that uses

vertex alpha to blend between two albedo textures
distance blending to apply detail albedo and normal map textures

Warning

This shader has a severe bug where normals break outside the detail range! It is advised to not used this shader.

Related shaders

Behavior

Vertex alpha blending

The shader has two sets of diffuse textures and two sets of PBRFactor parameters.

The shader uses a blend factor to interpolate from the first set of textures to second one.
This blend factor consists of just the vertex alpha.

Distance blending

Uses distance blending to interpolate


From...	... to
the `normal` texture	the `normal` and `normal[1]` textures blended together
the combined `diffuse` textures	the combined `diffuse` textures overlaid with the `diffuse[1]` texture using detail blending

Vertex Colors

Color is not used
Alpha is used as the basis for the blend factor

Bugs

Warning

The shader checks if the surface is within the detail range, and only then applies the detail diffuse and the detail normal textures. Unfortunately, the surface' normal direction never gets set outside this if-block, which means normals are completely broken outside the detail range.

Material Inputs

Textures


Name	Index	UV Index	Kind	Red	Blue	Alpha
`diffuse`	0	Any	Albedo	First Albedo color		N/A
`diffuse`	1	2	Detail albedo	Detail color		N/A
`diffuse`	2	Any	Albedo	Second Albedo color		N/A
`normal`	0	0	Normal map	Normal map direction	N/A	N/A
`normal`	1	2	Detail Normal map	Detail Normal map direction	N/A	N/A

Parameters


Name	X	Y	Z	W
`DetailFactor`	UV scale for the `diffuse[1]` and `normal[1]` textures	N/A	N/A	N/A
`PBRFactor`	First Specular factor	First Smoothness factor	First Metallic factor	N/A
`PBRFactor2`	Second Specular factor	Second Smoothness factor	Second Metallic factor	N/A

Technical

Shader Features
`enable_multi_tangent_space`
`is_use_tex_srt_anim`
`is_use_gi_prt`
`is_use_gi_sg`
`is_use_gi`

@@ Line 9: / Line 9: @@
 * [[Texture Blending#Distance blending|distance blending]] to apply detail [[Hedgehog Engine 2 - Textures#Albedo|albedo]] and [[Hedgehog Engine 2 - Textures#Normal map|normal map]] textures
-{{notice
+| overview bugs = This shader has a severe bug where normals break outside the detail range!
-|type=warn
-|content=This shader has a severe bug where normals break outside the detail range!
-It is advised to not use this shader.
-}}
 | related shaders =
@@ Line 28: / Line 24: @@
 | behavior =
-Todo
+=== Vertex alpha blending ===
-=== Bugs ===
+The shader has two sets of <code>diffuse</code> textures and two sets of <code>PBRFactor</code> parameters.
-{{notice
-|type=warn
+The shader uses a <b>blend factor</b> to [[Texture Blending#Interpolation|interpolate]] from the first set of textures to second one.
-|content=The shader checks if the surface is within the detail range, and only then applies the detail diffuse and the detail normal textures.
+<br/>This <b>blend factor</b> consists of just the vertex alpha.
-Unfortunately, the surface' normal direction never gets set outside this <code>if</code>-blocks, which means normals are completely broken outside the detail range.
-}}
+=== Distance blending ===
+Uses [[Texture Blending#Distance blending|distance blending]] to interpolate
+{{{!}} class="wikitable
+{{!}}+
+! From...
+!... to
+{{!}}-
+{{!}} the <code>normal</code> texture
+{{!}} the <code>normal</code> and <code>normal[1]</code> textures [[Texture Blending#Normal map blending|blended]] together
+{{!}}-
+{{!}} the combined <code>diffuse</code> textures
+{{!}} the combined <code>diffuse</code> textures overlaid with the <code>diffuse[1]</code> texture using [[Texture Blending#Detail blending|detail blending]]
+{{!}}}
 | vertex colors =
@@ Line 41: / Line 51: @@
 * Alpha is used as the basis for the <b>blend factor</b>
-| textures =
+| bugs = The shader checks if the surface is within the detail range, and only then applies the detail diffuse and the detail normal textures.
+Unfortunately, the surface' normal direction never gets set outside this <code>if</code>-block, which means normals are completely broken outside the detail range.
+| textures =
 diffuse,0,Any,