| import os
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| import sys
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| sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..', '..')))
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| import utils3d
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| import moderngl
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| import numpy as np
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| from PIL import Image
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| from pyrr import Matrix44
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|
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|
|
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|
|
|
| import moderngl
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|
|
| def run():
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| ctx = moderngl.create_context(
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| standalone=True,
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| backend='egl',
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|
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| libgl='libGL.so.1',
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| libegl='libEGL.so.1',
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| )
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|
|
| prog = ctx.program(vertex_shader="""
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| #version 330
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| uniform mat4 model;
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| in vec2 in_vert;
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| in vec3 in_color;
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| out vec3 color;
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| void main() {
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| gl_Position = model * vec4(in_vert, 0.0, 1.0);
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| color = in_color;
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| }
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| """,
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| fragment_shader="""
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| #version 330
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| in vec3 color;
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| out vec4 fragColor;
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| void main() {
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| fragColor = vec4(color, 1.0);
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| }
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| """)
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|
|
| vertices = np.array([
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| -0.6, -0.6,
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| 1.0, 0.0, 0.0,
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| 0.6, -0.6,
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| 0.0, 1.0, 0.0,
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| 0.0, 0.6,
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| 0.0, 0.0, 1.0,
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| ], dtype='f4')
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|
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| vbo = ctx.buffer(vertices)
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| vao = ctx.simple_vertex_array(prog, vbo, 'in_vert', 'in_color')
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| fbo = ctx.framebuffer(color_attachments=[ctx.texture((512, 512), 4)])
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|
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| fbo.use()
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| ctx.clear()
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| prog['model'].write(Matrix44.from_eulers((0.0, 0.1, 0.0), dtype='f4'))
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| vao.render(moderngl.TRIANGLES)
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|
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| data = fbo.read(components=3)
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| image = Image.frombytes('RGB', fbo.size, data)
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| image = image.transpose(Image.FLIP_TOP_BOTTOM)
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| image.save(os.path.join(os.path.dirname(__file__), '..', '..', 'results_to_check', 'output.png'))
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|
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|
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| if __name__ == '__main__':
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| run()
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|
|
