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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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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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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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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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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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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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if __name__ == '__main__':
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run()
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