e2dc63c5de
644fb2b679 fixed a long standing issue
that offscreen example showed the wrong colors. However the fix assumes
that input texture color space is always sRGB.
This adds a shader variation that draws textures that are stored in scene referred
linear color space (like all of our Image data-block).
Co-authored-by: Clément Foucault <foucault.clem@gmail.com>
Pull Request: https://projects.blender.org/blender/blender/pulls/147788
64 lines
1.5 KiB
Python
64 lines
1.5 KiB
Python
"""
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2D Image
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--------
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To use this example you have to provide an image that should be displayed.
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"""
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import bpy
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import gpu
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from gpu_extras.batch import batch_for_shader
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IMAGE_NAME = "Untitled"
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image = bpy.data.images[IMAGE_NAME]
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texture = gpu.texture.from_image(image)
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shader = gpu.shader.from_builtin('IMAGE_SCENE_LINEAR_TO_REC709_SRGB')
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batch = batch_for_shader(
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shader, 'TRI_FAN',
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{
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"pos": ((100, 100), (200, 100), (200, 200), (100, 200)),
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"texCoord": ((0, 0), (1, 0), (1, 1), (0, 1)),
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},
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)
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def draw():
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shader.bind()
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shader.uniform_sampler("image", texture)
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batch.draw(shader)
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bpy.types.SpaceView3D.draw_handler_add(draw, (), 'WINDOW', 'POST_PIXEL')
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"""
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3D Image
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--------
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Similar to the 2D Image shader, but works with 3D positions for the image vertices.
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To use this example you have to provide an image that should be displayed.
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"""
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import bpy
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import gpu
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from gpu_extras.batch import batch_for_shader
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IMAGE_NAME = "Untitled"
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image = bpy.data.images[IMAGE_NAME]
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texture = gpu.texture.from_image(image)
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shader = gpu.shader.from_builtin('IMAGE_SCENE_LINEAR_TO_REC709_SRGB')
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batch = batch_for_shader(
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shader, 'TRIS',
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{
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"pos": ((0, 0, 0), (0, 1, 1), (1, 1, 1), (1, 1, 1), (1, 0, 0), (0, 0, 0)),
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"texCoord": ((0, 0), (0, 1), (1, 1), (1, 1), (1, 0), (0, 0)),
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},
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)
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def draw():
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shader.uniform_sampler("image", texture)
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batch.draw(shader)
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bpy.types.SpaceView3D.draw_handler_add(draw, (), 'WINDOW', 'POST_VIEW')
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