Loader for EXR (OpenEXR) image files. More...

#include <ExrLoader.h>

Public Member Functions
	ExrLoader ()=default
	~ExrLoader ()=default
tinygltf::Image	load (const std::filesystem::path &filename)
	Load a complete EXR image file.
ExrHeader	loadHeader (std::filesystem::path path)
	Load only the header information from an EXR file.

Detailed Description

Loader for EXR (OpenEXR) image files.

Provides functionality to load EXR image files, with support for loading headers separately (useful for ECS systems) and loading full image data. Converts planar EXR channel data to interleaved format compatible with glTF/OpenGL.

Date: 2025-10-25

Author: Konstantin Passig

Definition at line 81 of file ExrLoader.h.

Constructor & Destructor Documentation

◆ ExrLoader()

EngineCore::ExrLoader::ExrLoader ( )

default

◆ ~ExrLoader()

EngineCore::ExrLoader::~ExrLoader ( )

default

Member Function Documentation

◆ load()

tinygltf::Image EngineCore::ExrLoader::load ( const std::filesystem::path & filename )

Load a complete EXR image file.

Load complete EXR image with header and pixel data.

Loads both header and pixel data from an EXR file and converts it to a tinygltf::Image format. The image data is interleaved (RGBA) from the planar format used by EXR files. Channel order is converted from EXR's BGR to RGB for OpenGL compatibility.

Parameters

filename Path to the EXR file to load

Returns: tinygltf::Image containing the loaded image data

Return values

Empty image if loading fails

Loads both header and pixel data, converting from planar to interleaved format. Handles BGR to RGB channel conversion for OpenGL compatibility.

Definition at line 40 of file ExrLoader.cpp.

References TRACY_ZONE_SCOPED_NAMED.

Referenced by EngineCore::GltfLoader::GltfMaterialData::GltfMaterialData(), Ecs::TextureAssetPipeline::loadImageData(), and Ecs::ModelAssetPipeline::processTextures().

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◆ loadHeader()

ExrHeader EngineCore::ExrLoader::loadHeader ( std::filesystem::path path )

nodiscard

Load only the header information from an EXR file.

Load only header information from EXR file.

Parses and extracts header information without loading pixel data. Useful for inspecting file properties before loading, or for use with ECS systems that need header data as components.

Parameters

path	Path to the EXR file

Returns: ExrHeader containing the parsed header information

Return values

ExrHeader with valid=false if parsing fails

Parses the EXR file header without loading pixel data. Returns an ExrHeader wrapper that owns its data, allowing the native EXRHeader to be freed.

Definition at line 176 of file ExrLoader.cpp.