modern-opengl

Modern OpenGL 4.5 rendering techniques

Demonstrates several OpenGL concepts using modern API: direct state access (DSA), frame buffer objects (FBO), shader storage buffer objects (SSBO), texture sampler objects (TSO), uniform buffer objects (UBO), geometry instancing, indirect drawing, bindless textures, multidrawelementsindirect, compute shaders, CPU/GPU synchronization with fences, approaching zero driver overhead (AZDO), etc.

The code was meant to be used as a hands-on training material. The teacher directory contains the full implementation, while the student directory has // TODO comments where new code must be inserted to complete each example scene.

Description

Scene 0: framebuffer and textures
Scene 1: vertex specification, vertex and fragment shaders, drawing commands
Scene 2: per-vertex lighting
Scene 3: per-fragment lighting
Scene 4: 2D texturing
Scene 5: individually draw many instances of same geometry
Scene 6: geometry instancing to improve performance when drawing many instances of same geometrry
Scene 6b: same as scene 6, but using a per-instance vertex attribute
Scene 7: individually draw many instances with texture
Scene 8: use bindless textures with geometry instances to improve performance
Scene 9: individually draw many instances of different geometries
Scene 10: multi draw indirect
Scene 11: multi draw indirect applied to a 3D CAD model
Scene 12: frustum culling on the CPU using explicit synchronization
Scene 13: frustum culling on the GPU using compute shaders

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