Shadow Generations Shaders - BlendDetail dpndpnn - Revision history

Justin113D: Used new bugs parameter

2025-08-25T12:17:51Z

Used new bugs parameter

← Older revision		Revision as of 12:17, 25 August 2025
Line 42:		Line 42:
	* For the <code>diffuse</code> textures, the <b>blend factor</b> is multiplied by the <code>diffuse[1]</code> texture alpha.		* For the <code>diffuse</code> textures, the <b>blend factor</b> is multiplied by the <code>diffuse[1]</code> texture alpha.

	=~~== Bugs ===~~		\| vertex colors =
			* Color is multiplied into the <code>diffuse</code> texture color
			* Alpha is used as the basis for the <b>blend factor</b>

	~~{{notice~~		\| bugs = The shader has 3 <code>normal</code> texture slots: Only <code>normal</code> and <code>normal[2]</code> are used, with <code>normal[1]</code> left unused.
	\|~~type=warn~~
	~~\|content~~=The shader has 3 <code>normal</code> texture slots: Only <code>normal</code> and <code>normal[2]</code> are used, with <code>normal[1]</code> left unused.
	Yet, to be able to specify a texture for the <code>normal[2]</code> slot, a material must have 3 texture slots, even if the slot for <code>normal[1]</code> is empty.		Yet, to be able to specify a texture for the <code>normal[2]</code> slot, a material must have 3 texture slots, even if the slot for <code>normal[1]</code> is empty.
	<br/>In a similar vein, the shader has the <code>enable_multi_tangent_space</code> feature, but never makes use of it.		<br/>In a similar vein, the shader has the <code>enable_multi_tangent_space</code> feature, but never makes use of it.
Line 52:		Line 52:
	<br/><b>Speculation:</b>		<br/><b>Speculation:</b>
	What likely happened here is that the developers used the code from {{ShaderLink\|Shadow Generations\|Blend_dpndpn}} as a base and then added in the detail normal map logic from {{ShaderLink\|Shadow Generations\|Detail_dpnn}} but accidentally pasted it over the previous normal map code, leaving just the detail normal map code behind.		What likely happened here is that the developers used the code from {{ShaderLink\|Shadow Generations\|Blend_dpndpn}} as a base and then added in the detail normal map logic from {{ShaderLink\|Shadow Generations\|Detail_dpnn}} but accidentally pasted it over the previous normal map code, leaving just the detail normal map code behind.
	}}

	~~\| vertex colors =~~
	* Color is multiplied into the <code>diffuse</code> texture color
	* Alpha is used as the basis for the <b>blend factor</b>

	\| textures =		\| textures =

Justin113D: Added missing feature

2025-08-23T22:34:45Z

Added missing feature

← Older revision		Revision as of 22:34, 23 August 2025
Line 100:		Line 100:
	\| features =		\| features =
	enable_multi_tangent_space,		enable_multi_tangent_space,
			is_use_tex_srt_anim,
	is_use_gi_prt,		is_use_gi_prt,
	is_use_gi_sg,		is_use_gi_sg,

Justin113D: Added page

2025-08-22T20:12:30Z

Added page

New page

{{Shader Documentation
| game = Shadow Generations
| shader name = BlendDetail_dpndpnn
| sbo = model=2, no_noise, no_compute_instancing, no_transparent_layer, no_punch_through_layer

| overview =
An advanced [[Hedgehog_Engine_2_-_Physically_Based_Rendering_(PBR)|PBR]] shader that uses
* [[Texture Blending#Distance blending|distance blending]] to [[Texture Blending#Normal map blending|blend]] in a detail [[Hedgehog Engine 2 - Textures#Normal map|normal map]]
* Vertex alpha to blend between two sets of [[Hedgehog Engine 2 - Textures#Albedo|albedo]] and [[Hedgehog Engine 2 - Textures#PRM|PRM]] textures

It is essentially a combination of the {{ShaderLink|Shadow Generations|Blend_dpndpn}} and {{ShaderLink|Shadow Generations|Detail_dpnn}} shaders.

| related shaders =
Blend_dpndpn,
Blend_dpnbdpn,
BlendDetail_dndnd,
Detail_dpndpn,
Detail_dpnn,
DirectionBlend_dpndpn,
DirectionBlend_dpndpnn,
DirectionBlend_dpnndpn,
DistanceBlend_dpn

| behavior =
=== Distance blending ===
Uses [[Texture Blending#Distance blending|distance blending]] to interpolate
* from the <code>normal</code> texture
* to the <code>normal</code> and <code>normal[2]</code> textures [[Texture Blending#Normal map blending|blended]] together.

 The shader uses <code>detailDistance</code> and <code>detailFadeRange</code> from the stage RFL to determine the detail range.

=== Vertex alpha blending ===

This shader has two sets of PBR textures:
* <code>diffuse</code> and <code>specular</code>
* <code>diffuse[1]</code> and <code>specular[1]</code>

The shader uses a blend factor to [[Texture Blending#Interpolation|interpolate]] from the first set of textures to second one.
 This blend factor consists of just the vertex alpha.

* For the <code>specular</code> textures, the blend factor is used as is.
* For the <code>diffuse</code> textures, the blend factor is multiplied by the <code>diffuse[1]</code> texture alpha.

=== Bugs ===

{{notice
|type=warn
|content=The shader has 3 <code>normal</code> texture slots: Only <code>normal</code> and <code>normal[2]</code> are used, with <code>normal[1]</code> left unused.
Yet, to be able to specify a texture for the <code>normal[2]</code> slot, a material must have 3 texture slots, even if the slot for <code>normal[1]</code> is empty.
 In a similar vein, the shader has the <code>enable_multi_tangent_space</code> feature, but never makes use of it.

 Speculation:
What likely happened here is that the developers used the code from {{ShaderLink|Shadow Generations|Blend_dpndpn}} as a base and then added in the detail normal map logic from {{ShaderLink|Shadow Generations|Detail_dpnn}} but accidentally pasted it over the previous normal map code, leaving just the detail normal map code behind.
}}

| vertex colors =
* Color is multiplied into the <code>diffuse</code> texture color
* Alpha is used as the basis for the blend factor

| textures =
diffuse,0,0,
[[Hedgehog Engine 2 - Textures#Albedo|Albedo]],
First [[Hedgehog_Engine_2_-_Physically_Based_Rendering_(PBR)#Albedo|Albedo]] color__,;

diffuse,1,2,
[[Hedgehog Engine 2 - Textures#Albedo|Albedo]],
Second [[Hedgehog_Engine_2_-_Physically_Based_Rendering_(PBR)#Albedo|Albedo]] color__,
Multiplied into the vertex alpha (blend factor)\, but only for when blending the two diffuse textures!;

specular,0,0,
[[Hedgehog Engine 2 - Textures#PRM|PRM]],
First [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Specular|Specular]] factor\; Gets multiplied by 0.25,
First [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Smoothness|Smoothness]] factor,
First [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Metallic|Metallic]] factor,
First [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Ambient Occlusion|Ambient Occlusion]];

specular,1,2,
[[Hedgehog Engine 2 - Textures#PRM|PRM]],
Second [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Specular|Specular]] factor\; Gets multiplied by 0.25,
Second [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Smoothness|Smoothness]] factor,
Second [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Metallic|Metallic]] factor,
Second [[Hedgehog Engine 2 - Physically Based Rendering (PBR)#Ambient Occlusion|Ambient Occlusion]];

normal,0,0,
[[Hedgehog Engine 2 - Textures#Normal map|Normal map]],
First [[Normal_mapping|Normal map direction]]_,,;

normal,1,N/A,,Unused___;

normal,2,3,
Detail [[Hedgehog Engine 2 - Textures#Normal map|Normal map]],
Detail [[Normal_mapping|Normal map direction]]_,,;

| parameters =

DetailFactor,
UV scale for the <code>normal[2]</code> texture,,,;

| features =
enable_multi_tangent_space,
is_use_gi_prt,
is_use_gi_sg,
is_use_gi,

}}