Module gpuFlux

Package de.grogra.gpuflux.scene.shading

Class FluxGGXShader

java.lang.Object

de.grogra.gpuflux.scene.FluxObject

de.grogra.gpuflux.scene.shading.FluxShader

de.grogra.gpuflux.scene.shading.FluxGGXShader

public class FluxGGXShader
extends FluxShader

GPU (GPUFlux / OpenCL) wrapper for the GGX microfacet BRDF shader.

Serialisation layout (matches ggxshader.h GGXShader struct):

   int   type                = SHADER_GGX (5)
   int   diffuse             channel offset
   int   specular            channel offset  (F0)
   int   roughness           channel offset  (alpha)
   int   transparency        channel offset  (-1 = opaque, delta BTDF)
   int   diffuseTransparency channel offset  (-1 = none,  Lambertian BTDF)
   int   emissive             channel offset  (-1 = none,  self-emission)
 

Author:

MH at YNL 2026

Field Summary

Fields

Modifier and Type	Field	Description
static final ColorMap	DEFAULT_DIFFUSE
static final ColorMap	DEFAULT_ROUGHNESS
static final ColorMap	DEFAULT_SPECULAR	F₀ default: 4% reflectance at normal incidence (typical dielectric).

Fields inherited from class de.grogra.gpuflux.scene.shading.FluxShader

SHADER_GGX, SHADER_IOR, SHADER_PHONG, SHADER_RGBA, SHADER_SWITCH, SHADER_WARD

Constructor Summary

Constructors

Constructor	Description
FluxGGXShader(GGX ggx, FluxChannelMapBuilder channelBuilder)	Builds GPU channel maps from the given GGX material node.

Method Summary

Modifier and Type	Method	Description
void	serialize(ComputeByteBuffer out)

Methods inherited from class de.grogra.gpuflux.scene.FluxObject

getOffset, setOffset

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_DIFFUSE

public static final ColorMap DEFAULT_DIFFUSE

DEFAULT_SPECULAR

public static final ColorMap DEFAULT_SPECULAR

F₀ default: 4% reflectance at normal incidence (typical dielectric).

DEFAULT_ROUGHNESS

public static final ColorMap DEFAULT_ROUGHNESS

Constructor Details

FluxGGXShader

public FluxGGXShader(GGX ggx,
 FluxChannelMapBuilder channelBuilder)

Builds GPU channel maps from the given GGX material node.

Parameters:

ggx - the GGX material to serialise

channelBuilder - builder used to allocate GPU channel offsets

Method Details

serialize

public void serialize(ComputeByteBuffer out)
               throws IOException

Specified by:

serialize in class FluxObject

Throws:

IOException