BTW My obvious workaround was to save the buffer locally and replace the slice into that, then copy the buffer up. But was curious why this didn't work
On Tue, Feb 2, 2016 at 2:31 PM, Brian Savery <[email protected]> wrote: > Working on a RenderEngine addon. When rendering I'd like to update a > region of the render result (say if I want to update the first scanline of > pixels). > > On the face of it RenderPass.rect is simply a list of 4 float items (list > of rgba value). > > https://www.blender.org/api/blender_python_api_current/bpy.types.RenderEngine.html > > I can do > layer.rect = [[1.0, 0.0, 0.0, 1.0]] * pixel_count > > However replacing a slice of that rect: > layer.rect[100:200] = [[1.0, 0.0, 0.0, 1.0]] * 100 > gives an error: > > TypeError: a float is required > Not sure what's going on here? > > -- > [email protected] > 508-274-8700 > -- [email protected] 508-274-8700
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