Enum TriangleBuffer 

pub enum TriangleBuffer {
    Unindexed {
        number_of_vertices: u32,
    },
    IndexedU8(ElementBuffer<u8>),
    IndexedU16(ElementBuffer<u16>),
    IndexedU32(ElementBuffer<u32>),
}

Buffer that defines the three vertices for each triangle in a mesh.

Variants

Unindexed

Each triangle is defined by three consequitive elements in the VertexBuffers. All elements in the VertexBuffers are used exactly once.

Fields

number_of_vertices: u32

The number of vertices to draw

IndexedU8(ElementBuffer<u8>)

Use an index buffer, with indices defined in u8 format, to index into the VertexBuffers. Each triangle is defined by three consequitive indices in the ElementBuffer. Elements in the VertexBuffers can be used multiple times.

IndexedU16(ElementBuffer<u16>)

Use an index buffer, with indices defined in u16 format, to index into the VertexBuffers. Each triangle is defined by three consequitive indices in the ElementBuffer. Elements in the VertexBuffers can be used multiple times.

IndexedU32(ElementBuffer<u32>)

Use an index buffer, with indices defined in u32 format, to index into the VertexBuffers. Each triangle is defined by three consequitive indices in the ElementBuffer. Elements in the VertexBuffers can be used multiple times.

Implementations

impl TriangleBuffer

pub fn new(context: &Context, cpu_mesh: &CpuMesh) -> Self

Create a new triangle buffer from a CpuMesh.

pub fn draw( &self, program: &Program, render_states: RenderStates, viewer: &dyn Viewer, )

Draw the triangles defined by this buffer.

pub fn draw_instanced( &self, program: &Program, render_states: RenderStates, viewer: &dyn Viewer, instance_count: u32, )

Draw multiple instances of the triangles defined by this buffer.

pub fn vertex_count(&self) -> u32

Returns the number of vertices defined by this buffer.

pub fn triangle_count(&self) -> u32

Returns the number of triangles defined by this buffer.