forked from bartvdbraak/blender
Py API Docs: New Example for off screen rendering
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doc/python_api/examples/gpu.10.py
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38
doc/python_api/examples/gpu.10.py
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"""
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Rendering the 3D View into a Texture
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------------------------------------
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The scene has to have a camera for this example to work.
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You could also make this independent of a specific camera, but Blender does not expose good functions to create view and projection matrices yet.
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"""
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import bpy
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import bgl
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import gpu
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from gpu_extras.presets import draw_texture_2d
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WIDTH = 512
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HEIGHT = 256
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offscreen = gpu.types.GPUOffScreen(WIDTH, HEIGHT)
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def draw():
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context = bpy.context
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scene = context.scene
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view_matrix = scene.camera.matrix_world.inverted()
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projection_matrix = scene.camera.calc_matrix_camera(
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context.depsgraph, x=WIDTH, y=HEIGHT)
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offscreen.draw_view3d(
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scene,
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context.view_layer,
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context.space_data,
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context.region,
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view_matrix,
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projection_matrix)
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bgl.glDisable(bgl.GL_DEPTH_TEST)
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draw_texture_2d(offscreen.color_texture, (10, 10), WIDTH, HEIGHT)
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bpy.types.SpaceView3D.draw_handler_add(draw, (), 'WINDOW', 'POST_PIXEL')
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