import glnext
import glwindow
from glnext_compiler import glsl
instance = glnext.instance(surface=True)
task = instance.task()
framebuffer = task.framebuffer((512, 512))
pipeline = framebuffer.render(
vertex_shader=glsl('''
#version 450
#pragma shader_stage(vertex)
layout (location = 0) out vec4 out_color;
vec2 positions[3] = vec2[](
vec2(-0.5, -0.5),
vec2(0.5, -0.5),
vec2(0.0, 0.5)
);
vec4 colors[3] = vec4[](
vec4(1.0, 0.0, 0.0, 1.0),
vec4(0.0, 1.0, 0.0, 1.0),
vec4(0.0, 0.0, 1.0, 1.0)
);
void main() {
gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
out_color = colors[gl_VertexIndex];
import glnext
import numpy as np
from glnext_compiler import glsl
from matplotlib import pyplot as plt
from objloader import Obj
instance = glnext.instance()
task = instance.task()
framebuffer = task.framebuffer((512, 512), '1f', samples=1)
vertex_size = 12
mesh = Obj.open('examples/monkey.obj').pack('vx vy vz')
vertex_count = len(mesh) // vertex_size
pipeline = framebuffer.render(
vertex_shader=glsl('''
#version 450
#pragma shader_stage(vertex)
layout (binding = 0) uniform Buffer {
mat4 mvp;
};
layout (location = 0) in vec3 in_vert;
layout (location = 0) out float out_depth;
void main() {
vec4 vert = mvp * vec4(in_vert, 1.0);
gl_Position = vert;
def instance():
instance = glnext.instance(
application_name='glnext_tests',
debug=True,
)
yield instance
import glnext
import imageio
import mymodule
windows = mymodule.init()
instance = glnext.instance(surface='VK_KHR_win32_surface')
image = instance.image((640, 360), mode='output')
buffer = instance.staging_buffer([[image]])
for wnd in windows:
instance.surface(wnd, image)
reader = imageio.get_reader('assets/bunny.mp4')
for im in reader:
buffer.write(glnext.rgba(im, 'rgb'))
instance.run()
}
''')
def create_pipeline(instance):
task = instance.task()
framebuffer = task.framebuffer((512, 512))
framebuffer.render(
vertex_shader=vertex_shader,
fragment_shader=fragment_shader,
vertex_count=3,
)
cache = b''
instance1 = glnext.instance(cache=cache)
a = time.perf_counter_ns()
create_pipeline(instance1)
b = time.perf_counter_ns()
cache = instance1.cache()
instance2 = glnext.instance(cache=cache)
c = time.perf_counter_ns()
create_pipeline(instance2)
d = time.perf_counter_ns()
print('cache size:', len(cache))
print('without cache:', (b - a) / 1e6)
print('with cache:', (d - c) / 1e6)
