Module gl1

Package de.grogra.glsl.material.channel

Class GLSLNormalMap

java.lang.Object

de.grogra.glsl.material.channel.GLSLChannelMap

de.grogra.glsl.material.channel.GLSLChannelMapNode

de.grogra.glsl.material.channel.GLSLNormalMap

public class GLSLNormalMap
extends GLSLChannelMapNode

GL1/GLSL code generator for NormalMap.

For Channel.NX requests, generates inline GLSL that:

1. Samples the RGB tangent-space normal map texture.
2. Decodes the texel from [0,1] to [-1,1].
3. Builds an orthonormal TBN matrix from the surface tangent (dpdu), bitangent (dpdv) and normal.
4. Transforms the decoded tangent-space normal to world space.
5. Blends the result with the original normal using the NormalMap.getStrength() parameter.

All other channel requests are forwarded to the upstream channel map.

Author:

MH at YNL 2026

Constructor Summary

Constructors

Constructor	Description
GLSLNormalMap()

Method Summary

Modifier and Type	Method	Description
Result	generate(ChannelMap inp, MaterialConfiguration cs, GLSLChannelMap inpChan, int channel)	This should be used instead of the other one
Class<NormalMap>	instanceFor()

Methods inherited from class de.grogra.glsl.material.channel.GLSLChannelMap

generateResult, generateResult, generateResultWithChannelDefault, getGLSLObject, getMaxResultType, initMap, instanceForName, mayDiscard

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GLSLNormalMap

public GLSLNormalMap()

Method Details

generate

public Result generate(ChannelMap inp,
 MaterialConfiguration cs,
 GLSLChannelMap inpChan,
 int channel)

Description copied from class: GLSLChannelMap

This should be used instead of the other one

Specified by:

generate in class GLSLChannelMap

Parameters:

inp -

cs -

inpChan -

channel -

Returns:

instanceFor

public Class<NormalMap> instanceFor()

Specified by:

instanceFor in class GLSLChannelMap