ShaderProgram.h File Reference

Wrapper around a linked OpenGL GLSL program with uniform caching. More...

#include <string>
#include <unordered_map>
#include "Types.h"
#include "graphics/GLForward.h"

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Classes
class	mnd::ShaderProgram
	Linked GLSL program with cached uniform locations. More...

Namespaces
namespace	mnd

Detailed Description

Wrapper around a linked OpenGL GLSL program with uniform caching.

ShaderProgram objects are created by GraphicsAPI::CreateShaderProgram() from GLSL source strings (loaded from .vert / .frag files at runtime). Once built, they are owned by shared_ptr and shared by Material instances.

Uniform upload flow

shader->Bind();
shader->SetUniform("uModel", modelMatrix);   // cached location lookup
shader->SetTexture("uDiffuse", texture);     // binds to next texture unit

Uniform locations are cached after the first lookup to avoid repeated glGetUniformLocation calls, which are expensive if issued every frame.

See also

GraphicsAPI::CreateShaderProgram, Material

Definition in file ShaderProgram.h.