def setupFBOandTextures(self):
self.framebufferA0 = (gl.GLuint * args["resolution"])()
self.A0_tex = gl.GLuint(0)
self.draw_buffersA0 = (gl.GLenum * args["resolution"])(
gl.GL_COLOR_ATTACHMENT0)
gl.glGenFramebuffers(args["resolution"], self.framebufferA0)
gl.glGenTextures(1, ctypes.byref(self.A0_tex))
#create textures
#A
gl.glActiveTexture(gl.GL_TEXTURE0)
gl.glBindTexture(gl.GL_TEXTURE_3D, self.A0_tex)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, args["resolution"],
args["resolution"], args["resolution"], 0,
gl.GL_RED, gl.GL_FLOAT, 0)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
#A
for i in range(args["resolution"]):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self.framebufferA0[i])
gl.glFramebufferTexture3D(gl.GL_FRAMEBUFFER,
gl.GL_COLOR_ATTACHMENT0,
gl.GL_TEXTURE_3D, self.A0_tex, 0, i)
assert (gl.glCheckFramebufferStatus(
gl.GL_FRAMEBUFFER) == gl.GL_FRAMEBUFFER_COMPLETE)
def attach_input(in_data, in_size):
# Load input
gl.glBindTexture(gl.GL_TEXTURE_3D, input_texture)
glTypeFromNp = {
np.dtype('uint8'): gl.GL_UNSIGNED_BYTE,
np.dtype('uint16'): gl.GL_UNSIGNED_SHORT,
np.dtype('uint32'): gl.GL_UNSIGNED_INT,
np.dtype('float32'): gl.GL_FLOAT
}
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, 1)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, in_size[0], in_size[1],
in_size[2], 0, gl.GL_RED, glTypeFromNp[in_data.dtype],
ctypes.c_void_p(in_data.ctypes.data))
def __init__(self, texture_width, texture_height, max_textures): self.texture_width = texture_width self.texture_height = texture_height self.max_textures = max_textures self.textures = [] # an array to keep track of the textures we've already added self.texture_array = gl.GLuint(0) # create our texture array gl.glGenTextures(1, self.texture_array) gl.glBindTexture(gl.GL_TEXTURE_2D_ARRAY, self.texture_array) gl.glTexParameteri(gl.GL_TEXTURE_2D_ARRAY, gl.GL_TEXTURE_MAG_FILTER, gl.GL_NEAREST) # disable texture filtering for magnification (return the texel that's nearest to the fragment's texture coordinate) gl.glTexImage3D( # set the dimensions of our texture array gl.GL_TEXTURE_2D_ARRAY, 0, gl.GL_RGBA, self.texture_width, self.texture_height, self.max_textures, 0, gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, None)
def __init__(self, texture_width, texture_height, max_textures): self.texture_width = texture_width self.texture_height = texture_height self.max_textures = max_textures self.textures = [] self.texture_array = gl.GLuint(0) gl.glGenTextures(1, self.texture_array) gl.glBindTexture(gl.GL_TEXTURE_2D_ARRAY, self.texture_array) gl.glTexParameteri(gl.GL_TEXTURE_2D_ARRAY, gl.GL_TEXTURE_MIN_FILTER, options.MIPMAP_TYPE) gl.glTexParameteri(gl.GL_TEXTURE_2D_ARRAY, gl.GL_TEXTURE_MAG_FILTER, gl.GL_NEAREST) gl.glTexImage3D( gl.GL_TEXTURE_2D_ARRAY, 0, gl.GL_RGBA, self.texture_width, self.texture_height, self.max_textures, 0, gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, None)
def setupFBOandTextures(self):
self.framebufferA0 = (gl.GLuint * self.dimz)()
self.framebufferA1 = (gl.GLuint * self.dimz)()
self.framebufferB0 = (gl.GLuint * self.dimz)()
self.framebufferB1 = (gl.GLuint * self.dimz)()
self.A0_tex = gl.GLuint(0)
self.A1_tex = gl.GLuint(0)
self.B0_tex = gl.GLuint(0)
self.B1_tex = gl.GLuint(0)
self.draw_buffersA0 = (gl.GLenum * self.dimz)(
gl.GL_COLOR_ATTACHMENT0)
self.draw_buffersA1 = (gl.GLenum * self.dimz)(
gl.GL_COLOR_ATTACHMENT0)
self.draw_buffersB0 = (gl.GLenum * self.dimz)(
gl.GL_COLOR_ATTACHMENT0)
self.draw_buffersB1 = (gl.GLenum * self.dimz)(
gl.GL_COLOR_ATTACHMENT0)
#gl.glGenFramebuffers(self.dimz, ctypes.byref(self.framebufferA0))
#gl.glGenFramebuffers(self.dimz, ctypes.byref(self.framebufferA1))
#gl.glGenFramebuffers(self.dimz, ctypes.byref(self.framebufferB0))
#gl.glGenFramebuffers(self.dimz, ctypes.byref(self.framebufferB1))
gl.glGenFramebuffers(self.dimz, self.framebufferA0)
gl.glGenFramebuffers(self.dimz, self.framebufferA1)
gl.glGenFramebuffers(self.dimz, self.framebufferB0)
gl.glGenFramebuffers(self.dimz, self.framebufferB1)
gl.glGenTextures(1, ctypes.byref(self.A0_tex))
gl.glGenTextures(1, ctypes.byref(self.A1_tex))
gl.glGenTextures(1, ctypes.byref(self.B0_tex))
gl.glGenTextures(1, ctypes.byref(self.B1_tex))
#create textures
#A
gl.glActiveTexture(gl.GL_TEXTURE0)
gl.glBindTexture(gl.GL_TEXTURE_3D, self.A0_tex)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, self.dimx,
self.dimy, self.dimz, 0, gl.GL_RED, gl.GL_FLOAT,
self.Ap)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
gl.glActiveTexture(gl.GL_TEXTURE1)
gl.glBindTexture(gl.GL_TEXTURE_3D, self.A1_tex)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, self.dimx,
self.dimy, self.dimz, 0, gl.GL_RED, gl.GL_FLOAT,
self.Ap)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
#B
gl.glActiveTexture(gl.GL_TEXTURE2)
gl.glBindTexture(gl.GL_TEXTURE_3D, self.B0_tex)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, self.dimx,
self.dimy, self.dimz, 0, gl.GL_RED, gl.GL_FLOAT,
self.Bp)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
gl.glActiveTexture(gl.GL_TEXTURE3)
gl.glBindTexture(gl.GL_TEXTURE_3D, self.B1_tex)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, self.dimx,
self.dimy, self.dimz, 0, gl.GL_RED, gl.GL_FLOAT,
self.Bp)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
#A
for i in range(self.dimz):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self.framebufferA0[i])
gl.glFramebufferTexture3D(gl.GL_FRAMEBUFFER,
gl.GL_COLOR_ATTACHMENT0,
gl.GL_TEXTURE_3D, self.A0_tex, 0, i)
assert (gl.glCheckFramebufferStatus(
gl.GL_FRAMEBUFFER) == gl.GL_FRAMEBUFFER_COMPLETE)
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self.framebufferA1[i])
gl.glFramebufferTexture3D(gl.GL_FRAMEBUFFER,
gl.GL_COLOR_ATTACHMENT0,
gl.GL_TEXTURE_3D, self.A1_tex, 0, i)
assert (gl.glCheckFramebufferStatus(
gl.GL_FRAMEBUFFER) == gl.GL_FRAMEBUFFER_COMPLETE)
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self.framebufferB0[i])
gl.glFramebufferTexture3D(gl.GL_FRAMEBUFFER,
gl.GL_COLOR_ATTACHMENT0,
gl.GL_TEXTURE_3D, self.B0_tex, 0, i)
assert (gl.glCheckFramebufferStatus(
gl.GL_FRAMEBUFFER) == gl.GL_FRAMEBUFFER_COMPLETE)
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self.framebufferB1[i])
gl.glFramebufferTexture3D(gl.GL_FRAMEBUFFER,
gl.GL_COLOR_ATTACHMENT0,
gl.GL_TEXTURE_3D, self.B1_tex, 0, i)
assert (gl.glCheckFramebufferStatus(
gl.GL_FRAMEBUFFER) == gl.GL_FRAMEBUFFER_COMPLETE)
def attach_output(out_size):
# Clear output
gl.glBindTexture(gl.GL_TEXTURE_3D, rendered_texture)
gl.glTexImage3D(gl.GL_TEXTURE_3D, 0, gl.GL_RED, out_size[0], out_size[1],
out_size[2], 0, gl.GL_RED, gl.GL_UNSIGNED_INT, 0)