grr!

A bare metal library for OpenGL 4.5+

grr aims at providing a thin layer above OpenGL 4.5+, exposing a modern API orientated on Vulkan. The sole purpose of the library is to have a cleaned up API for fast prototyping. Neither state caching, extensive error checking or further assistance is implemented nor in-scope of the lib!

Features

• API is built around direct state access
• Following Vulkan terminology and function names
• Only provided latest GL functionality
• Enforce sRGB framebuffer handling

Getting started

Checkout our Hello Triangle example to see the library in action!

Example

```rust // Bind graphics pipeline (shaders) grr.bindpipeline(&pipeline); // Configure vertex attributes grr.bindvertexarray(&vertexarray); // Bind vertex buffers fer fetching attribute data grr.bindvertexbuffers( &vertexarray, 0, &[grr::VertexBufferView { buffer: &triangledata, offset: 0, stride: (std::mem::size_of::() * 5) as _, }] );

// Clear default framebuffer grr.clear_attachment(grr::Framebuffer::DEFAULT, grr::ClearAttachment::ColorFloat(0, [0.5, 0.5, 0.5, 1.0])); // Draw triangles grr.draw(grr::Primitive::Triangles, 0..3, 0..1);

// Present on screen! window.swap_buffers().unwrap(); ```