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I’ve written an operator which edits an image in the Image Editor, but it won't work properly with the undo system. I have created a minimal repro script: import bpy img = bpy.data.images['MyImage'] …

The channels are acessible through image.pixels, but hot to get the Z-Buffer? …

for x in range(width): for y in range(height): plane = bpy.ops.mesh.primitive_plane_add(size=cubeSize, location=(x*cubeSize, y*cubeSize, 0.0)) index = x + y * width r = image.pixels … [index] g = image.pixels[index+1] b = image.pixels[index+2] …

If this could be used to set the voxel values on the fly with a custom math function (by setting the image.pixels property, I guess?), then what's left is the colors and changing with the animation. …

IMAGES : image=bpy.data.images['image02'] # image02 as seen in uv editor imageR=bpy.data.images['Render Result'] # useless, so bad width=image.size[0] height=image.size[1] PIXELS=[0.0 for i in range(len(image.pixels … ))] # len(image.pixels) == width * height * 3 ( or 4 with the alpha channel ) # here, work with PIXELS image.pixels=PIXELS …

Within blender's image class you can access the raw pixel data at image.pixels as an array of floats, 4 floats per pixel (RGBA). image.size[0] is the width in pixels image.size[1] for height. …

My current approach is rather ugly: image.pixels[:] = do_a_flip() image.update() image.pack() image.reload() image.unpack() …

appears to work on EXRs, but your mileage may vary: import bpy from math import ceil, log image = bpy.data.images['your_exr_goes_here.exr'] print("Total dynamic range in stops:") print( ( log(max(image.pixels … )) / log(2) ) - ( log(min(image.pixels)) / log(2) ) ) # Equivalent to (log(max) - log(min))/log(2) of course. …

) #FIXED: set data for i in range(0, WIDTH*HEIGHT*4, 4): pixels[i] = 0.11111111 pixels[i+1] = 0.22222222 pixels[i+2] = 0.33333333 pixels[i+3] = 0.44444444 image.pixels[:] = pixels image.update … () print(list(image.pixels)) …

pixels = bytearray([int(p * 255) for p in image.pixels]) But, instead of raw pixel data, I would like to get a bytearray containing all the bytes of a PNG-format image. …

bpy.data.images.new(IMAGE_NAME, WIDTH, HEIGHT) else: bpy.data.images.new(IMAGE_NAME, WIDTH, HEIGHT) image = bpy.data.images[IMAGE_NAME] #FIXED: set data for i in range(0, WIDTH*HEIGHT*4, 4): image.pixels … [i] = 0.2 image.pixels[i+1] = 0.3 image.pixels[i+2] = 0.1 image.pixels[i+3] = 0.4 print(list(image.pixels)) # load to gpu if image.gl_load(): raise Exception() offscreen = gpu.types.GPUOffScreen …

This seems to be unnatural and weird way (comparing to something like ...nodes['Render Layers'].output[0].image.pixels) which takes additional memory, processing time and effort. …

num_points = len(points) image = bpy.data.images.new('ParticleColor', num_points, 1) # working on a copy of the pixels results in a MASSIVE gain of performance speed local_pixels = list(image.pixels[:] … + 1] = color[1] / 255.0 local_pixels[column_offset + 2] = color[2] / 255.0 # opacity (0 = transparent, 1 = opaque) #local_pixels[column_offset + 3] = 1.0 # already set by default image.pixels …

bpy.context.scene.render.filepath = render_path + ".png" bpy.ops.render.render(write_still=True) image = bpy.data.images.load(bpy.context.scene.render.filepath) pixels = [int(value * 255) for value in image.pixels …

imageName in bpy.data.images: image = bpy.data.images[imageName] image.generated_width = width image.generated_height = height else: image = bpy.data.images.new(imageName, width, height) image.pixels …