Struct GL 

pub struct GL;

Low-level, stateless OpenGL 4.6 wrappers.

Every method is a thin wrapper around a single gl::* call — no state tracking, no error handling. Use GPU for stateful rendering.

Example

optic_render::GL::clear();
optic_render::GL::set_clear(RGBA::grey(0.2));

Implementations

impl GL

pub fn clear()

Clears the colour and depth buffer of the currently bound framebuffer.

pub fn set_clear(color: RGBA)

Sets the clear colour for subsequent clear calls.

pub fn resize(size: Size2D)

Sets the OpenGL viewport to span (0, 0, size.w, size.h).

pub fn poly_mode(mode: PolyMode)

Sets polygon rasterisation mode (filled, wireframe, or points).

pub fn enable_msaa(enable: bool)

Enables or disables multisample anti-aliasing.

pub fn enable_depth(enable: bool)

Enables or disables depth testing.

pub fn enable_alpha(enable: bool)

Enables or disables alpha blending (SRC_ALPHA, ONE_MINUS_SRC_ALPHA).

pub fn enable_cull(enable: bool)

Enables or disables back-face culling.

pub fn set_cull_face(face: Cull)

Sets the front face winding order (clockwise or counter-clockwise).

pub fn set_point_size(size: f32)

Sets the point size (used with PolyMode::Points).

pub fn set_wire_width(width: f32)

Sets the line width (used with PolyMode::WireFrame).

pub fn bind_shader(id: u32)

Binds a shader program (glUseProgram).

pub fn unbind_shader()

Unbinds the current shader program (binds 0).

pub fn bind_texture_at(tex_id: u32, slot: u32)

Binds a 2D texture to the given texture unit slot.

pub fn unbind_texture()

Unbinds the currently bound 2D texture (binds 0).

pub fn bind_vao(id: u32)

Binds a vertex array object.

pub fn unbind_vao()

Unbinds the current VAO (binds 0).

pub fn bind_buffer(id: u32)

Binds an array buffer (GL_ARRAY_BUFFER).

pub fn unbind_buffer()

Unbinds the current array buffer (binds 0).

pub fn bind_ebo(id: u32)

Binds an element array buffer (GL_ELEMENT_ARRAY_BUFFER).

pub fn unbind_ebo()

Unbinds the current element array buffer (binds 0).

pub fn bind_ssbo(id: u32)

Binds a shader storage buffer (GL_SHADER_STORAGE_BUFFER).

pub fn unbind_ssbo()

Unbinds the current SSBO (binds 0).