#Shader

SafiEngine::Shader compiles and manages GLSL shader programs with automatic uniform location caching.

Header: Core/include/Core/Shader.h

#Methods

#LoadFromFile

bool LoadFromFile(const std::string &vertPath, const std::string &fragPath)

Reads vertex and fragment shader source from files, then compiles and links them into a program.

Returns true on success, false on failure (logs errors via Log::Error).

#Load

bool Load(const std::string &vertexSrc, const std::string &fragmentSrc)

Compiles a vertex and fragment shader from source strings, links them into a program.

Returns true on success, false on failure (logs compile/link errors).

#Use

void Use() const

Activates the shader program for subsequent draw calls.

#Uniform Setters

void SetMat4(const std::string &name, const glm::mat4 &mat) const
void SetMat3(const std::string &name, const glm::mat3 &mat) const
void SetMat4Array(const std::string &name, const glm::mat4 *data, int count) const
void SetVec3(const std::string &name, const glm::vec3 &vec) const
void SetVec4(const std::string &name, const glm::vec4 &vec) const
void SetInt(const std::string &name, int value) const
void SetFloat(const std::string &name, float value) const
void SetBool(const std::string &name, bool value) const

Set uniform values on the shader program by name. The shader must be active (via Use()) before calling these. All setters check that the program is valid and skip silently if the uniform name is not found (returns -1).

Uniform locations are cached in an std::unordered_map — repeated calls with the same name avoid the glGetUniformLocation string lookup.

#GetID

GLuint GetID() const

Returns the OpenGL program ID.

#Default Shader Uniforms

The engine's built-in default shader uses these uniforms:

#Vertex Shader

#Fragment Shader

If no lights are present, the shader uses a fallback directional fill light with ambient lighting.