Query¶
Create¶
Attributes¶
Examples¶
Simple query example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | import moderngl import numpy as np ctx = moderngl.create_standalone_context() prog = ctx.program( vertex_shader=''' #version 330 in vec2 in_vert; void main() { gl_Position = vec4(in_vert, 0.0, 1.0); } ''', fragment_shader=''' #version 330 out vec4 color; void main() { color = vec4(1.0, 0.0, 0.0, 1.0); } ''', ) vertices = np.array([ 0.0, 0.0, 1.0, 0.0, 0.0, 1.0, ], dtype='f4') vbo = ctx.buffer(vertices.tobytes()) vao = ctx.simple_vertex_array(prog, vbo, 'in_vert') fbo = ctx.simple_framebuffer((64, 64)) fbo.use() query = ctx.query(samples=True, time=True) with query: vao.render() print('It took %d nanoseconds' % query.elapsed) print('to render %d samples' % query.samples) |
Output
It took 13529 nanoseconds
to render 496 samples