High-Performance offscreen rendering for python.
pip install glnext
import glnext
from glnext_compiler import glsl
from PIL import Image
instance = glnext.instance()
task = instance.task()
framebuffer = task.framebuffer((512, 512))
pipeline = framebuffer.render(
vertex_shader=glsl('''
#version 450
#pragma shader_stage(vertex)
layout (location = 0) in vec2 in_vert;
layout (location = 1) in vec3 in_color;
layout (location = 0) out vec3 out_color;
void main() {
gl_Position = vec4(in_vert, 0.0, 1.0);
out_color = in_color;
}
'''),
fragment_shader=glsl('''
#version 450
#pragma shader_stage(fragment)
layout (location = 0) in vec3 in_color;
layout (location = 0) out vec4 out_color;
void main() {
out_color = vec4(in_color, 1.0);
}
'''),
vertex_format='2f 3f',
vertex_count=3,
)
pipeline.update(
vertex_buffer=glnext.pack([
-0.5, -0.5, 0.0, 0.0, 1.0,
0.5, -0.5, 0.0, 1.0, 0.0,
0.0, 0.5, 1.0, 0.0, 0.0,
])
)
task.run()
data = framebuffer.output[0].read()
img = Image.frombuffer('RGBA', (512, 512), data)
img.save('hello_world.png')
With up2date drivers the vulkan runtime binaries should already be on your system. Install the vulkan-sdk if needed.
Install the vulkan-sdk.
apt-get install libx11-dev
This project is compatible with swiftshader. The CI also runs on pure CPU. (Dockerfile)