def __init__(self):
load_prc_file_data("", """
textures-power-2 none
window-type offscreen
win-size 100 100
gl-coordinate-system default
notify-level-display error
print-pipe-types #f
""")
ShowBase.__init__(self)
dest_tex = Texture()
dest_tex.setup_2d_texture(2048, 2048, Texture.T_unsigned_byte, Texture.F_rgba8)
cshader = Shader.load_compute(Shader.SL_GLSL, "grain.compute.glsl")
node = NodePath("")
node.set_shader(cshader)
node.set_shader_input("DestTex", dest_tex)
attr = node.get_attrib(ShaderAttrib)
self.graphicsEngine.dispatch_compute(
(2048 // 16, 2048 // 16, 1), attr, self.win.get_gsg())
base.graphicsEngine.extract_texture_data(dest_tex, base.win.get_gsg())
# Convert to single channel
img = PNMImage(2048, 2048, 1, 255)
dest_tex.store(img)
img.set_num_channels(1)
tex = Texture()
tex.load(img)
tex.write("grain.txo.pz")
def __init__(self):
load_prc_file_data(
"", """
textures-power-2 none
window-type offscreen
win-size 100 100
gl-coordinate-system default
notify-level-display error
print-pipe-types #f
""")
ShowBase.__init__(self)
dest_tex = Texture()
dest_tex.setup_2d_texture(2048, 2048, Texture.T_unsigned_byte,
Texture.F_rgba8)
cshader = Shader.load_compute(Shader.SL_GLSL, "grain.compute.glsl")
node = NodePath("")
node.set_shader(cshader)
node.set_shader_input("DestTex", dest_tex)
attr = node.get_attrib(ShaderAttrib)
self.graphicsEngine.dispatch_compute((2048 // 16, 2048 // 16, 1), attr,
self.win.get_gsg())
base.graphicsEngine.extract_texture_data(dest_tex, base.win.get_gsg())
# Convert to single channel
img = PNMImage(2048, 2048, 1, 255)
dest_tex.store(img)
img.set_num_channels(1)
tex = Texture()
tex.load(img)
tex.write("grain.txo.pz")
from panda3d.core import Filename, PNMImage
jpgFile = raw_input("JPEG file: ")
aFile = raw_input("Alpha file: ")
fn = Filename.fromOsSpecific(jpgFile)
fnrgb = Filename.fromOsSpecific(aFile)
fnout = Filename(fn.getFullpathWoExtension() + ".png")
image = PNMImage(fn)
imagergb = PNMImage(fnrgb)
image.set_num_channels(4)
for x in xrange(image.get_x_size()):
for y in xrange(image.get_y_size()):
image.set_channel(x, y, 3, imagergb.getChannel(x, y, 0))
image.write(fnout)
