Rendering

OpenGL

Shaders

Buffers

class pygly.vertex_array.VertexArray

Wraps OpenGL Vertex Array Objects.

Provides wrappers around standard functions and higher level wrappers with PyGLy.BufferRegion interfaces.

Example:

vs = Shader( GL_VERTEX_SHADER, shader_source['vert'] )
fs = Shader( GL_FRAGMENT_SHADER, shader_source['frag'] )
shader = ShaderProgram( vs, fs )

# a basic triangle
vertices = numpy.array(
    [
        #  X    Y    Z          R    G    B
        (( 0.0, 1.0, 0.0),     (1.0, 0.0, 0.0)),
        ((-2.0,-1.0, 0.0),     (0.0, 1.0, 0.0)),
        (( 2.0,-1.0, 0.0),     (0.0, 0.0, 1.0)),
        ],
    dtype = [
        ('position','float32',(3,)),
        ('colour','float32',(3,))
        ]
    )
buffer = DtypeVertexBuffer(
    vertices.dtype,
    GL_ARRAY_BUFFER,
    GL_STATIC_DRAW,
    data = vertices
    )

vao = VertexArray()

vao.bind()
buffer.bind()
buffer.set_attribute_pointer_dtype( shader, 'in_position', 'position' )
buffer.set_attribute_pointer_dtype( shader, 'in_colour', 'colour' )
buffer.unbind()
vao.unbind()

Warning

This is an OpenGL Core function (>=3.0) and should not be called for Legacy profile applications (<=2.1).

__init__()

bind()

handle

unbind()

Texturing

Sorting