def texture_mipmap(cfg, show_dbg_points=False):
cfg.aspect_ratio = (1, 1)
cuepoints = _get_texture_mipmap_cuepoints()
black = (0, 0, 0, 255)
white = (255, 255, 255, 255)
p = _N // 2
cb_data = array.array(
'B',
((black + white) * p + (white + black) * p) * p,
)
cb_buffer = ngl.BufferUBVec4(data=cb_data)
texture = ngl.Texture2D(
width=_N,
height=_N,
min_filter='nearest',
mipmap_filter='linear',
data_src=cb_buffer,
)
program = ngl.Program(vertex=_RENDER_TEXTURE_LOD_VERT,
fragment=_RENDER_TEXTURE_LOD_FRAG)
program.update_vert_out_vars(var_uvcoord=ngl.IOVec2())
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
render = ngl.Render(quad, program)
render.update_frag_resources(tex0=texture)
group = ngl.Group(children=(render, ))
if show_dbg_points:
group.add_children(get_debug_points(cfg, cuepoints))
return group
def lut3d(cfg, xsplit=.3, trilinear=True):
'''Lookup Table 3D using a Texture3D'''
level = 6
level2 = level**2
# Generated with `ffmpeg -f lavfi -i haldclutsrc=6,curves=vintage,format=rgba
# -f rawvideo -frames:v 1 lut3d.raw`
lut3d_filename = op.join(op.dirname(__file__), 'data', 'lut3d.raw')
cfg.files.append(lut3d_filename)
lut3d_buf = ngl.BufferUBVec4(filename=lut3d_filename)
lut3d_tex = ngl.Texture3D(data_src=lut3d_buf,
width=level2,
height=level2,
depth=level2)
if trilinear:
lut3d_tex.set_min_filter('linear')
lut3d_tex.set_mag_filter('linear')
m0 = cfg.medias[0]
cfg.duration = m0.duration
cfg.aspect_ratio = (m0.width, m0.height)
video = ngl.Media(m0.filename)
video_tex = ngl.Texture2D(data_src=video)
prog = ngl.Program(fragment=cfg.get_frag('lut3d'),
vertex=cfg.get_vert('lut3d'))
prog.update_vert_out_vars(var_uvcoord=ngl.IOVec2(),
var_tex0_coord=ngl.IOVec2())
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
render = ngl.Render(quad, prog)
render.update_frag_resources(tex0=video_tex, lut3d=lut3d_tex)
render.update_frag_resources(xsplit=ngl.UniformFloat(value=xsplit))
return render
def buffer_dove(cfg,
bgcolor1=(0.6, 0, 0),
bgcolor2=(0.8, 0.8, 0),
bilinear_filtering=True):
"""Blending of a Render using a Buffer as data source"""
cfg.duration = 3.0
# Credits: https://icons8.com/icon/40514/dove
# (Raw data is the premultiplied)
icon_filename = op.join(op.dirname(__file__), "data", "icons8-dove.raw")
cfg.files.append(icon_filename)
w, h = (96, 96)
cfg.aspect_ratio = (w, h)
img_buf = ngl.BufferUBVec4(filename=icon_filename, label="icon raw buffer")
img_tex = ngl.Texture2D(data_src=img_buf, width=w, height=h)
if bilinear_filtering:
img_tex.set_mag_filter("linear")
quad = ngl.Quad((-0.5, -0.5, 0.1), (1, 0, 0), (0, 1, 0))
render = ngl.RenderTexture(img_tex, geometry=quad, blending="src_over")
shape_bg = ngl.Circle(radius=0.6, npoints=256)
color_animkf = [
ngl.AnimKeyFrameColor(0, bgcolor1),
ngl.AnimKeyFrameColor(cfg.duration / 2.0, bgcolor2),
ngl.AnimKeyFrameColor(cfg.duration, bgcolor1),
]
ucolor = ngl.AnimatedColor(color_animkf)
render_bg = ngl.RenderColor(ucolor, geometry=shape_bg, label="background")
return ngl.Group(children=(render_bg, render))
def lut3d(cfg, xsplit=0.3, trilinear=True):
"""Lookup Table 3D using a Texture3D"""
level = 6
level2 = level**2
# Generated with `ffmpeg -f lavfi -i haldclutsrc=6,curves=vintage,format=rgba
# -f rawvideo -frames:v 1 lut3d.raw`
lut3d_filename = op.join(op.dirname(__file__), "data", "lut3d.raw")
cfg.files.append(lut3d_filename)
lut3d_buf = ngl.BufferUBVec4(filename=lut3d_filename)
lut3d_tex = ngl.Texture3D(data_src=lut3d_buf,
width=level2,
height=level2,
depth=level2)
if trilinear:
lut3d_tex.set_min_filter("linear")
lut3d_tex.set_mag_filter("linear")
m0 = cfg.medias[0]
cfg.duration = m0.duration
cfg.aspect_ratio = (m0.width, m0.height)
video = ngl.Media(m0.filename)
video_tex = ngl.Texture2D(data_src=video)
scene_tex = ngl.RenderTexture(video_tex)
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
prog_lut = ngl.Program(fragment=cfg.get_frag("lut3d"),
vertex=cfg.get_vert("lut3d"))
prog_lut.update_vert_out_vars(var_uvcoord=ngl.IOVec2(),
var_tex0_coord=ngl.IOVec2())
scene_lut = ngl.Render(quad, prog_lut)
scene_lut.update_frag_resources(tex0=video_tex, lut3d=lut3d_tex)
return compare(cfg, scene_tex, scene_lut, xsplit)
def texture_mipmap(cfg, show_dbg_points=False):
cfg.aspect_ratio = (1, 1)
cuepoints = _get_texture_mipmap_cuepoints()
black = (0, 0, 0, 255)
white = (255, 255, 255, 255)
p = _N // 2
cb_data = array.array(
'B',
((black + white) * p + (white + black) * p) * p,
)
cb_buffer = ngl.BufferUBVec4(data=cb_data)
texture = ngl.Texture2D(
width=_N,
height=_N,
min_filter='nearest',
mipmap_filter='linear',
data_src=cb_buffer,
)
shader_version = '300 es' if cfg.backend == 'gles' else '330'
program = ngl.Program(
vertex=_RENDER_TEXTURE_LOD_VERT % dict(version=shader_version),
fragment=_RENDER_TEXTURE_LOD_FRAG % dict(version=shader_version),
)
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
render = ngl.Render(quad, program)
render.update_textures(tex0=texture)
group = ngl.Group(children=(render, ))
if show_dbg_points:
group.add_children(get_debug_points(cfg, cuepoints))
return group
def texture_3d(cfg):
random.seed(0)
width, height, depth = 9, 9, 3
n = width * height
data = array.array('B')
for i in random.sample(range(n), n):
data.extend([i * 255 // n, 0, 0, 255])
for i in random.sample(range(n), n):
data.extend([0, i * 255 // n, 0, 255])
for i in random.sample(range(n), n):
data.extend([0, 0, i * 255 // n, 255])
texture_buffer = ngl.BufferUBVec4(data=data)
texture = ngl.Texture3D(width=width,
height=height,
depth=depth,
data_src=texture_buffer)
glsl_version = '300 es' if cfg.backend == 'gles' else '330'
glsl_header = '#version %s\n' % glsl_version
render_cubemap_vert = glsl_header + _TEXTURE3D_VERT
render_cubemap_frag = glsl_header + _TEXTURE3D_FRAG
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
program = ngl.Program(vertex=render_cubemap_vert,
fragment=render_cubemap_frag)
render = ngl.Render(quad, program)
render.update_textures(tex0=texture)
return render
def buffer_dove(cfg,
bgcolor1=(.6, 0, 0, 1),
bgcolor2=(.8, .8, 0, 1),
bilinear_filtering=True):
'''Blending of a Render using a Buffer as data source'''
cfg.duration = 3.
# Credits: https://icons8.com/icon/40514/dove
icon_filename = op.join(op.dirname(__file__), 'data', 'icons8-dove.raw')
cfg.files.append(icon_filename)
w, h = (96, 96)
cfg.aspect_ratio = (w, h)
img_buf = ngl.BufferUBVec4(filename=icon_filename, label='icon raw buffer')
img_tex = ngl.Texture2D(data_src=img_buf, width=w, height=h)
if bilinear_filtering:
img_tex.set_mag_filter('linear')
quad = ngl.Quad((-.5, -.5, 0.1), (1, 0, 0), (0, 1, 0))
program = ngl.Program(vertex=cfg.get_vert('texture'),
fragment=cfg.get_frag('texture'))
program.update_vert_out_vars(var_tex0_coord=ngl.IOVec2(),
var_uvcoord=ngl.IOVec2())
render = ngl.Render(quad, program, label='dove')
render.update_frag_resources(tex0=img_tex)
render = ngl.GraphicConfig(render,
blend=True,
blend_src_factor='src_alpha',
blend_dst_factor='one_minus_src_alpha',
blend_src_factor_a='zero',
blend_dst_factor_a='one')
prog_bg = ngl.Program(vertex=cfg.get_vert('color'),
fragment=cfg.get_frag('color'))
shape_bg = ngl.Circle(radius=.6, npoints=256)
render_bg = ngl.Render(shape_bg, prog_bg, label='background')
color_animkf = [
ngl.AnimKeyFrameVec4(0, bgcolor1),
ngl.AnimKeyFrameVec4(cfg.duration / 2.0, bgcolor2),
ngl.AnimKeyFrameVec4(cfg.duration, bgcolor1)
]
ucolor = ngl.AnimatedVec4(color_animkf)
render_bg.update_frag_resources(color=ucolor)
return ngl.Group(children=(render_bg, render))
def texture_cubemap(cfg):
n = 64
p = n * n
cb_data = array.array('B', (255, 0, 0, 255) * p + (0, 255, 0, 255) * p +
(0, 0, 255, 255) * p + (255, 255, 0, 255) * p +
(0, 255, 255, 255) * p + (255, 0, 255, 255) * p)
cb_buffer = ngl.BufferUBVec4(data=cb_data)
cube = ngl.TextureCube(size=n,
min_filter="linear",
mag_filter="linear",
data_src=cb_buffer)
program = ngl.Program(vertex=_RENDER_CUBEMAP_VERT,
fragment=_RENDER_CUBEMAP_FRAG)
program.update_vert_out_vars(var_uvcoord=ngl.IOVec3())
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
render = ngl.Render(quad, program)
render.update_frag_resources(tex0=cube)
return render
def texture_3d(cfg):
width, height, depth = 9, 9, 3
n = width * height
data = array.array("B")
for i in cfg.rng.sample(range(n), n):
data.extend([i * 255 // n, 0, 0, 255])
for i in cfg.rng.sample(range(n), n):
data.extend([0, i * 255 // n, 0, 255])
for i in cfg.rng.sample(range(n), n):
data.extend([0, 0, i * 255 // n, 255])
texture_buffer = ngl.BufferUBVec4(data=data)
texture = ngl.Texture3D(width=width,
height=height,
depth=depth,
data_src=texture_buffer)
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
program = ngl.Program(vertex=_TEXTURE3D_VERT, fragment=_TEXTURE3D_FRAG)
program.update_vert_out_vars(var_uvcoord=ngl.IOVec2())
render = ngl.Render(quad, program)
render.update_frag_resources(tex0=texture)
return render
def texture_cubemap(cfg):
n = 64
p = n * n
cb_data = array.array('B', (255, 0, 0, 255) * p + (0, 255, 0, 255) * p +
(0, 0, 255, 255) * p + (255, 255, 0, 255) * p +
(0, 255, 255, 255) * p + (255, 0, 255, 255) * p)
cb_buffer = ngl.BufferUBVec4(data=cb_data)
cube = ngl.TextureCube(size=n,
min_filter="linear",
mag_filter="linear",
data_src=cb_buffer)
glsl_version = '300 es' if cfg.backend == 'gles' else '330'
glsl_header = '#version %s\n' % glsl_version
render_cubemap_vert = glsl_header + _RENDER_CUBEMAP_VERT
render_cubemap_frag = glsl_header + _RENDER_CUBEMAP_FRAG
program = ngl.Program(vertex=render_cubemap_vert,
fragment=render_cubemap_frag)
quad = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
render = ngl.Render(quad, program)
render.update_textures(tex0=cube)
return render
