def setup_render_vertexbuffer():
'''
Create the vertexbuffer object for the rendering program
'''
gl.glGenVertexArrays(1, ctypes.byref(render_vao))
gl.glGenBuffers(1, ctypes.byref(render_vertexbuffer))
loc_position = gl.glGetAttribLocation(render_program, ctypes.create_string_buffer(b'position'))
loc_color = gl.glGetAttribLocation(render_program, ctypes.create_string_buffer(b'color'))
if loc_position < 0:
print('Warning: position is not used in the shader')
if loc_color < 0:
print('Warning: color is not used in the shader')
gl.glBindVertexArray(render_vao)
gl.glEnableVertexAttribArray(loc_position)
gl.glEnableVertexAttribArray(loc_color)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, render_vertexbuffer)
gl.glVertexAttribPointer(loc_position, 2, gl.GL_FLOAT, False, ctypes.sizeof(COLOR_VERTEX), ctypes.c_void_p(COLOR_VERTEX.position.offset))
gl.glVertexAttribPointer(loc_color, 4, gl.GL_FLOAT, False, ctypes.sizeof(COLOR_VERTEX), ctypes.c_void_p(COLOR_VERTEX.color.offset))
gl.glBindVertexArray(0)
def __init__(self, **args):
super(Window, self).__init__(**args)
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
self.vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vbo)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(vertex_positions)),
(gl.GLfloat *
len(vertex_positions))(*vertex_positions),
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(0)
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ibo)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER,
ctypes.sizeof(gl.GLuint * len(indices)),
(gl.GLuint * len(indices))(*indices),
gl.GL_STATIC_DRAW)
def setup_render_vertexbuffer():
gl.glGenVertexArrays(1, ctypes.byref(render_vao))
gl.glGenBuffers(1, ctypes.byref(render_vertexbuffer))
loc_position = gl.glGetAttribLocation(
render_program, ctypes.create_string_buffer(b'position'))
loc_texcoord = gl.glGetAttribLocation(
render_program, ctypes.create_string_buffer(b'texcoord'))
if loc_position < 0:
print('Warning: position is not used in the shader')
if loc_texcoord < 0:
print('Warning: texcoord is not used in the shader')
gl.glBindVertexArray(render_vao)
gl.glEnableVertexAttribArray(loc_position)
gl.glEnableVertexAttribArray(loc_texcoord)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, render_vertexbuffer)
gl.glVertexAttribPointer(loc_position, 2, gl.GL_FLOAT, False,
ctypes.sizeof(VERTEX),
ctypes.c_void_p(VERTEX.position.offset))
gl.glVertexAttribPointer(loc_texcoord, 2, gl.GL_FLOAT, False,
ctypes.sizeof(VERTEX),
ctypes.c_void_p(VERTEX.texcoord.offset))
gl.glBindVertexArray(0)
def setup_render_vertexbuffer():
'''
Create the vertexbuffer object for the rendering program
'''
gl.glGenVertexArrays(1, ctypes.byref(render_vao))
gl.glGenBuffers(1, ctypes.byref(render_vertexbuffer))
loc_position = gl.glGetAttribLocation(
render_program, ctypes.create_string_buffer(b'position'))
loc_color = gl.glGetAttribLocation(render_program,
ctypes.create_string_buffer(b'color'))
if loc_position < 0:
print('Warning: position is not used in the shader')
if loc_color < 0:
print('Warning: color is not used in the shader')
gl.glBindVertexArray(render_vao)
gl.glEnableVertexAttribArray(loc_position)
gl.glEnableVertexAttribArray(loc_color)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, render_vertexbuffer)
gl.glVertexAttribPointer(loc_position, 2, gl.GL_FLOAT, False,
ctypes.sizeof(COLOR_VERTEX),
ctypes.c_void_p(COLOR_VERTEX.position.offset))
gl.glVertexAttribPointer(loc_color, 4, gl.GL_FLOAT, False,
ctypes.sizeof(COLOR_VERTEX),
ctypes.c_void_p(COLOR_VERTEX.color.offset))
gl.glBindVertexArray(0)
def _create_device_objects(self):
# save state
last_texture = gl.GLint()
gl.glGetIntegerv(gl.GL_TEXTURE_BINDING_2D, byref(last_texture))
last_array_buffer = gl.GLint()
gl.glGetIntegerv(gl.GL_ARRAY_BUFFER_BINDING, byref(last_array_buffer))
last_vertex_array = gl.GLint()
gl.glGetIntegerv(gl.GL_VERTEX_ARRAY_BINDING, byref(last_vertex_array))
self._shader_handle = gl.glCreateProgram()
# note: no need to store shader parts handles after linking
vertex_shader = gl.glCreateShader(gl.GL_VERTEX_SHADER)
fragment_shader = gl.glCreateShader(gl.GL_FRAGMENT_SHADER)
gl.glShaderSource(vertex_shader, 1, make_string_buffer(self.VERTEX_SHADER_SRC), None)
gl.glShaderSource(fragment_shader, 1, make_string_buffer(self.FRAGMENT_SHADER_SRC), None)
gl.glCompileShader(vertex_shader)
gl.glCompileShader(fragment_shader)
gl.glAttachShader(self._shader_handle, vertex_shader)
gl.glAttachShader(self._shader_handle, fragment_shader)
gl.glLinkProgram(self._shader_handle)
# note: after linking shaders can be removed
gl.glDeleteShader(vertex_shader)
gl.glDeleteShader(fragment_shader)
self._attrib_location_tex = gl.glGetUniformLocation(self._shader_handle, create_string_buffer(b"Texture"))
self._attrib_proj_mtx = gl.glGetUniformLocation(self._shader_handle, create_string_buffer(b"ProjMtx"))
self._attrib_location_position = gl.glGetAttribLocation(self._shader_handle, create_string_buffer(b"Position"))
self._attrib_location_uv = gl.glGetAttribLocation(self._shader_handle, create_string_buffer(b"UV"))
self._attrib_location_color = gl.glGetAttribLocation(self._shader_handle, create_string_buffer(b"Color"))
self._vbo_handle = gl.GLuint()
gl.glGenBuffers(1, byref(self._vbo_handle))
self._elements_handle = gl.GLuint()
gl.glGenBuffers(1, byref(self._elements_handle))
self._vao_handle = gl.GLuint()
gl.glGenVertexArrays(1, byref(self._vao_handle))
gl.glBindVertexArray(self._vao_handle)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self._vbo_handle)
gl.glEnableVertexAttribArray(self._attrib_location_position)
gl.glEnableVertexAttribArray(self._attrib_location_uv)
gl.glEnableVertexAttribArray(self._attrib_location_color)
gl.glVertexAttribPointer(self._attrib_location_position, 2, gl.GL_FLOAT, gl.GL_FALSE, imgui.VERTEX_SIZE, c_void_p(imgui.VERTEX_BUFFER_POS_OFFSET))
gl.glVertexAttribPointer(self._attrib_location_uv, 2, gl.GL_FLOAT, gl.GL_FALSE, imgui.VERTEX_SIZE, c_void_p(imgui.VERTEX_BUFFER_UV_OFFSET))
gl.glVertexAttribPointer(self._attrib_location_color, 4, gl.GL_UNSIGNED_BYTE, gl.GL_TRUE, imgui.VERTEX_SIZE, c_void_p(imgui.VERTEX_BUFFER_COL_OFFSET))
# restore state
gl.glBindTexture(gl.GL_TEXTURE_2D, cast((c_int*1)(last_texture), POINTER(c_uint)).contents)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, cast((c_int*1)(last_array_buffer), POINTER(c_uint)).contents)
gl.glBindVertexArray(cast((c_int*1)(last_vertex_array), POINTER(c_uint)).contents)
def __init__(self, world, chunk_position):
self.chunk_position = chunk_position
self.position = ( # get a world-space position for the chunk
self.chunk_position[0] * CHUNK_WIDTH,
self.chunk_position[1] * CHUNK_HEIGHT,
self.chunk_position[2] * CHUNK_LENGTH)
self.world = world
self.blocks = [
[
[
0 # create an array of blocks filled with "air" (block number 0)
for z in range(CHUNK_LENGTH)
] for y in range(CHUNK_HEIGHT)
] for x in range(CHUNK_WIDTH)
]
# mesh variables
self.has_mesh = False
self.mesh_vertex_positions = []
self.mesh_tex_coords = []
self.mesh_shading_values = []
self.mesh_index_counter = 0
self.mesh_indices = []
# create vertex array object
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, self.vao)
gl.glBindVertexArray(self.vao)
# create vertex position vbo
self.vertex_position_vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.vertex_position_vbo)
# create tex coord vbo
self.tex_coord_vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.tex_coord_vbo)
# create shading values vbo
self.shading_values_vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.shading_values_vbo)
# create index buffer object
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
def __init__(self,
vertices: np.ndarray,
indices: np.ndarray,
mode=None,
texture=None):
if mode is None:
mode = gl.GL_TRIANGLES
self.vertices = vertices
self.indices = indices
self.indices_size = indices.size
self.mode = mode
self.texture = texture
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
self.vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vbo)
gl.glBufferData(
gl.GL_ARRAY_BUFFER, # target
vertices.nbytes, # size
(gl.GLbyte * vertices.nbytes)(*vertices.tobytes()), # data
gl.GL_STATIC_DRAW,
) # usage
self.ebo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.ebo))
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ebo)
gl.glBufferData(
gl.GL_ELEMENT_ARRAY_BUFFER,
indices.nbytes,
(gl.GLbyte * indices.nbytes)(*indices.tobytes()),
gl.GL_STATIC_DRAW,
)
for ind, fld in enumerate(
sorted([f for f in vertices.dtype.fields.items()],
key=lambda i: i[1][1])):
gl.glVertexAttribPointer(
ind, # index
vertices[0][fld[0]].size, # size
gl.GL_FLOAT, # type
gl.GL_FALSE, # normalized
vertices.itemsize, # stride
ctypes.c_void_p(fld[1][1]),
) # pointer
gl.glEnableVertexAttribArray(ind)
if texture is not None:
texture_image = pyglet.image.load(texture)
self.texture = texture_image.get_texture()
gl.glBindVertexArray(0)
def __init__(self, **args):
super().__init__(**args)
# create vertex array object
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
# create vertex buffer object
self.vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vbo)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(vertex_positions)),
(gl.GLfloat *
len(vertex_positions))(*vertex_positions),
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(0)
# create index buffer object
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ibo)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER,
ctypes.sizeof(gl.GLuint * len(indices)),
(gl.GLuint * len(indices))(*indices),
gl.GL_STATIC_DRAW)
# create shader
self.shader = shader.Shader("vert.glsl", "frag.glsl")
self.shader_matrix_location = self.shader.find_uniform(
b"matrix") # get the shader matrix uniform location
self.shader.use()
# create matrices
self.mv_matrix = matrix.Matrix() # modelview
self.p_matrix = matrix.Matrix() # projection
self.x = 0 # temporary variable
pyglet.clock.schedule_interval(
self.update,
1.0 / 60) # call update function every 60th of a second
def __init__(self, world, chunk_position):
self.world = world
self.modified = False
self.chunk_position = chunk_position
self.position = (
self.chunk_position[0] * CHUNK_WIDTH,
self.chunk_position[1] * CHUNK_HEIGHT,
self.chunk_position[2] * CHUNK_LENGTH)
self.blocks = [[[0
for z in range(CHUNK_LENGTH)]
for y in range(CHUNK_HEIGHT)]
for x in range(CHUNK_WIDTH )]
self.subchunks = {}
for x in range(int(CHUNK_WIDTH / subchunk.SUBCHUNK_WIDTH)):
for y in range(int(CHUNK_HEIGHT / subchunk.SUBCHUNK_HEIGHT)):
for z in range(int(CHUNK_LENGTH / subchunk.SUBCHUNK_LENGTH)):
self.subchunks[(x, y, z)] = subchunk.Subchunk(self, (x, y, z))
# mesh variables
self.mesh_vertex_positions = []
self.mesh_tex_coords = []
self.mesh_shading_values = []
self.mesh_index_counter = 0
self.mesh_indices = []
# create VAO and VBO's
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, self.vao)
gl.glBindVertexArray(self.vao)
self.vertex_position_vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.vertex_position_vbo)
self.tex_coord_vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.tex_coord_vbo)
self.shading_values_vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.shading_values_vbo)
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
def gen_vertices(self):
# Just make a cube for now
self.vertices = (GLfloat * 108)(*[
-1.0, -1.0, -1.0,
-1.0, -1.0, 1.0,
-1.0, 1.0, 1.0,
1.0, 1.0, -1.0,
-1.0, -1.0, -1.0,
-1.0, 1.0, -1.0,
1.0, -1.0, 1.0,
-1.0, -1.0, -1.0,
1.0, -1.0, -1.0,
1.0, 1.0, -1.0,
1.0, -1.0, -1.0,
-1.0, -1.0, -1.0,
-1.0, -1.0, -1.0,
-1.0, 1.0, 1.0,
-1.0, 1.0, -1.0,
1.0, -1.0, 1.0,
-1.0, -1.0, 1.0,
-1.0, -1.0, -1.0,
-1.0, 1.0, 1.0,
-1.0, -1.0, 1.0,
1.0, -1.0, 1.0,
1.0, 1.0, 1.0,
1.0, -1.0, -1.0,
1.0, 1.0, -1.0,
1.0, -1.0, -1.0,
1.0, 1.0, 1.0,
1.0, -1.0, 1.0,
1.0, 1.0, 1.0,
1.0, 1.0, -1.0,
-1.0, 1.0, -1.0,
1.0, 1.0, 1.0,
-1.0, 1.0, -1.0,
-1.0, 1.0, 1.0,
1.0, 1.0, 1.0,
-1.0, 1.0, 1.0,
1.0, -1.0, 1.0
])
glGenVertexArrays(1, self.vao)
glGenBuffers(1, self.vbo)
glBindBuffer(GL_ARRAY_BUFFER, self.vbo)
glBufferData(GL_ARRAY_BUFFER, sizeof(self.vertices), self.vertices, GL_STATIC_DRAW)
glBindVertexArray(self.vao)
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), 0)
glEnableVertexAttribArray(0)
def __init__(self,
prog: Program,
content: Iterable[BufferDescription],
index_buffer: Buffer = None):
self.program = prog.prog_id
self.vao = vao = gl.GLuint()
self.num_vertices = -1
self.ibo = index_buffer
gl.glGenVertexArrays(1, byref(self.vao))
gl.glBindVertexArray(self.vao)
for buffer_desc in content:
self._enable_attrib(buffer_desc)
if self.ibo is not None:
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ibo.buffer_id)
weakref.finalize(self, VertexArray.release, vao)
def __init__(self, **args):
super().__init__(**args)
# create vertex array object
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
# create vertex buffer object
self.vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vbo)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(vertex_positions)),
(gl.GLfloat *
len(vertex_positions))(*vertex_positions),
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(0)
# create index buffer object
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ibo)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER,
ctypes.sizeof(gl.GLuint * len(indices)),
(gl.GLuint * len(indices))(*indices),
gl.GL_STATIC_DRAW)
# create shader
self.shader = shader.Shader("vert.glsl", "frag.glsl")
self.shader.use()
def upload(asset: ModelAsset, gl_usage=GL_STATIC_DRAW):
asset.vertex_array_id = GLuint()
glGenVertexArrays(1, asset.vertex_array_id)
asset.vertex_buffer_id = GLuint()
glGenBuffers(1, asset.vertex_buffer_id)
upload_vertices(asset, gl_usage)
upload_indices(asset, gl_usage)
if asset.texture is not None:
glBindTexture(GL_TEXTURE_2D, asset.texture.id)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
# noinspection PyCallingNonCallable,PyTypeChecker
texture_data = (GLubyte * len(asset.texture.buffer.flat))(
*asset.texture.buffer.flatten())
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, asset.texture.width,
asset.texture.height, 0, asset.texture.format,
asset.texture.type, texture_data)
def __init__(self, vertex_shader, fragment_shader, attributes):
# compile and link
self.program_name = gl.glCreateProgram()
gl.glAttachShader(self.program_name,
compile_shader(gl.GL_VERTEX_SHADER, vertex_shader))
gl.glAttachShader(
self.program_name,
compile_shader(gl.GL_FRAGMENT_SHADER, fragment_shader))
link_program(self.program_name)
# vertex type
class VERTEX(ctypes.Structure):
_fields_ = [(name, TYPE_NAME_TO_TYPE[tname] * size)
for (name, tname, size) in attributes]
self.VERTEX = VERTEX
# vertex array and buffer
self.vertex_array_name = gl.GLuint(0)
self.vertex_buffer_name = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vertex_array_name))
gl.glGenBuffers(1, ctypes.byref(self.vertex_buffer_name))
gl.glBindVertexArray(self.vertex_array_name)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer_name)
for (name, tname, size) in attributes:
location = gl.glGetAttribLocation(
self.program_name,
ctypes.create_string_buffer(name.encode('ascii')))
if location < 0:
warnings.warn('Attribute %r is not present.' % name,
stacklevel=2)
continue
gl.glEnableVertexAttribArray(location)
gl.glVertexAttribPointer(
location, size, tname, False, ctypes.sizeof(VERTEX),
ctypes.c_void_p(getattr(VERTEX, name).offset))
gl.glBindVertexArray(0)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, 0)
def __init__(self):
display = pyglet.canvas.get_display()
config = display.get_default_screen().get_best_config(Config())
config.major_version = 3
config.minor_version = 3
context = config.create_context(None)
Window.__init__(self,
800,
600,
visible=False,
resizable=True,
caption='Tinyblend example',
context=context)
self.vao = (GLuint * 1)()
glGenVertexArrays(1, self.vao)
glBindVertexArray(self.vao[0])
# Load shaders
shader = shaders.from_files_names('shaders/main.glsl.vert',
'shaders/main.glsl.frag')
shader.owned = False
shader.use()
shader.enable_all_attributes()
self.shader = shader
# Uniforms matrices setup
self.rotation = [-90, 0, 0]
self.position = [0, 0, -4.5]
shaders.transpose_matrices(False)
self.upload_uniforms()
# Scene creation
self.setup_scene()
# Show the window
self.set_visible()
def __init__(self):
"""Create an instance of a Vertex Array object."""
self._context = pyglet.gl.current_context
self._id = GLuint()
glGenVertexArrays(1, self._id)
def __init__(self, world, chunk_position):
self.world = world
self.shader_chunk_offset_location = self.world.shader.find_uniform(b"u_ChunkPosition")
self.modified = False
self.chunk_position = chunk_position
self.position = (
self.chunk_position[0] * CHUNK_WIDTH,
self.chunk_position[1] * CHUNK_HEIGHT,
self.chunk_position[2] * CHUNK_LENGTH)
self.blocks = [[[0 for z in range(CHUNK_LENGTH)]
for y in range(CHUNK_HEIGHT)]
for x in range(CHUNK_WIDTH)]
# Numpy is really slow there
self.lightmap = [[[0 for z in range(CHUNK_LENGTH)]
for y in range(CHUNK_HEIGHT)]
for x in range(CHUNK_WIDTH)]
self.subchunks = {}
self.chunk_update_queue = deque()
for x in range(int(CHUNK_WIDTH / subchunk.SUBCHUNK_WIDTH)):
for y in range(int(CHUNK_HEIGHT / subchunk.SUBCHUNK_HEIGHT)):
for z in range(int(CHUNK_LENGTH / subchunk.SUBCHUNK_LENGTH)):
self.subchunks[(x, y, z)] = subchunk.Subchunk(self, (x, y, z))
# mesh variables
self.mesh = []
self.translucent_mesh = []
self.mesh_quad_count = 0
self.translucent_quad_count = 0
# create VAO and VBO's
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, self.vao)
gl.glBindVertexArray(self.vao)
self.vbo = gl.GLuint(0)
gl.glGenBuffers(1, self.vbo)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vbo)
gl.glBufferData(gl.GL_ARRAY_BUFFER, ctypes.sizeof(gl.GLfloat * CHUNK_WIDTH * CHUNK_HEIGHT * CHUNK_LENGTH * 7), None, gl.GL_DYNAMIC_DRAW)
gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT,
gl.GL_FALSE, 7 * ctypes.sizeof(gl.GLfloat), 0)
gl.glEnableVertexAttribArray(0)
gl.glVertexAttribPointer(1, 1, gl.GL_FLOAT,
gl.GL_FALSE, 7 * ctypes.sizeof(gl.GLfloat), 3 * ctypes.sizeof(gl.GLfloat))
gl.glEnableVertexAttribArray(1)
gl.glVertexAttribPointer(2, 1, gl.GL_FLOAT,
gl.GL_FALSE, 7 * ctypes.sizeof(gl.GLfloat), 4 * ctypes.sizeof(gl.GLfloat))
gl.glEnableVertexAttribArray(2)
gl.glVertexAttribPointer(3, 1, gl.GL_FLOAT,
gl.GL_FALSE, 7 * ctypes.sizeof(gl.GLfloat), 5 * ctypes.sizeof(gl.GLfloat))
gl.glEnableVertexAttribArray(3)
gl.glVertexAttribPointer(4, 1, gl.GL_FLOAT,
gl.GL_FALSE, 7 * ctypes.sizeof(gl.GLfloat), 6 * ctypes.sizeof(gl.GLfloat))
gl.glEnableVertexAttribArray(4)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, world.ibo)
if self.world.options.INDIRECT_RENDERING:
self.indirect_command_buffer = gl.GLuint(0)
gl.glGenBuffers(1, self.indirect_command_buffer)
gl.glBindBuffer(gl.GL_DRAW_INDIRECT_BUFFER, self.indirect_command_buffer)
gl.glBufferData(
gl.GL_DRAW_INDIRECT_BUFFER,
ctypes.sizeof(gl.GLuint * 10),
None,
gl.GL_DYNAMIC_DRAW
)
self.draw_commands = []
self.occlusion_query = gl.GLuint(0)
gl.glGenQueries(1, self.occlusion_query)
def __init__(self):
#consider bumping opengl version if apple supports it
#amdgpu-mesa currently supports up to 4.5
super(ControledRender,
self).__init__(512,
512,
fullscreen=False,
config=gl.Config(major_version=4,
minor_version=1),
visible=False)
print(self.context.get_info().get_version())
self.vertex_buffer = gl.GLuint(0)
self.vao = gl.GLuint(0)
#self.prev_program = (gl.GLint * 1)()
self.dimx = args["A"].shape[0]
self.dimy = args["A"].shape[1]
self.dimz = args["A"].shape[2]
A = args["A"].astype(np.float32)
#print("A shape " + str(A.shape))
#print(str(A.dtype))
#print(A)
#self.dp = self.tdata.ctypes.data_as(ctypes.POINTER(ctypes.c_void_p))
self.Ap = A.ctypes.data_as(ctypes.POINTER(ctypes.c_void_p))
T = args["transform"].astype(np.float32)
self.Tp = T.ctypes.data_as(ctypes.POINTER(ctypes.c_float))
self.setupFBOandTextures()
self.setupShaders()
data = [
-1.0, -1.0, 1.0, -1.0, 1.0, 1.0, -1.0, -1.0, 1.0, 1.0, -1.0,
1.0
]
dataGl = (gl.GLfloat * len(data))(*data)
gl.glGenBuffers(1, ctypes.byref(self.vertex_buffer))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
len(dataGl) * 4, dataGl, gl.GL_STATIC_DRAW)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
gl.glUseProgram(self.programA)
self.pos_posA = gl.glGetAttribLocation(
self.programA, ctypes.create_string_buffer(b"a_position"))
assert (self.pos_posA >= 0)
gl.glEnableVertexAttribArray(self.pos_posA)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glVertexAttribPointer(self.pos_posA, 2, gl.GL_FLOAT, False, 0,
0)
self.tex_pos_A = gl.glGetUniformLocation(self.programA, b"A")
self.transform_pos = gl.glGetUniformLocation(
self.programA, b"transform")
self.step_pos_A = gl.glGetUniformLocation(self.programA, b"step")
self.slice_pos_A = gl.glGetUniformLocation(self.programA, b"slice")
self.checkUniformLocation(self.tex_pos_A)
self.checkUniformLocation(self.transform_pos)
self.checkUniformLocation(self.step_pos_A)
self.checkUniformLocation(self.slice_pos_A)
gl.glUniformMatrix4fv(self.transform_pos, 1, True, self.Tp)
#gl.glUniformMatrix4fv(self.transform_pos, 1, False, self.Tp)
#may need changed for nonsquare textures
gl.glUniform1f(self.step_pos_A, 1 / self.dimx)
gl.glViewport(0, 0, self.dimx, self.dimy)
def createVAO(vertexBuffer,
textureCoordBuffer=None,
normalBuffer=None,
colorBuffer=None):
"""Create a Vertex Array Object (VAO) with specified Vertex Buffer Objects.
VAOs store buffer binding states, reducing binding overhead when drawing
objects with vertext data stored in VBOs.
Parameters
----------
vertexBuffer : :obj:`VertexBufferObject`
Vertex buffer descriptor, must have 'bufferType' as GL_VERTEX_ARRAY.
textureCoordBuffer : :obj:`VertexBufferObject` or None, optional
Vertex buffer descriptor of texture coordinates, must have 'bufferType'
as GL_TEXTURE_COORD_ARRAY.
normalBuffer : :obj:`VertexBufferObject` or None, optional
Vertex buffer descriptor of normals, must have 'bufferType' as
GL_NORMAL_ARRAY.
colorBuffer :obj:`VertexBufferObject` or None, optional
Vertex buffer descriptor of colors, must have 'bufferType' as
GL_COLOR_ARRAY.
Returns
-------
VertexArrayObject
A descriptor with vertex buffer information.
Examples
--------
# create a VAO
vaoDesc = createVAO(vboVerts, vboTexCoords, vboNormals)
# draw the VAO, renders the mesh
drawVAO(vaoDesc, GL.GL_TRIANGLES)
"""
# create a vertex buffer ID
vaoId = GL.GLuint()
GL.glGenVertexArrays(1, ctypes.byref(vaoId))
GL.glBindVertexArray(vaoId)
# must have a vertex pointer
assert vertexBuffer.bufferType == GL.GL_VERTEX_ARRAY
# bind and set the vertex pointer, this is must be bound
GL.glBindBuffer(GL.GL_ARRAY_BUFFER, vertexBuffer.id)
GL.glVertexPointer(vertexBuffer.vertexSize, vertexBuffer.dtype, 0, None)
GL.glEnableClientState(vertexBuffer.bufferType)
# texture coordinates
if textureCoordBuffer is not None:
if vertexBuffer.indices != textureCoordBuffer.indices:
raise RuntimeError(
"Texture and vertex buffer indices do not match!")
GL.glBindBuffer(GL.GL_ARRAY_BUFFER, textureCoordBuffer.id)
GL.glTexCoordPointer(textureCoordBuffer.vertexSize,
textureCoordBuffer.dtype, 0, None)
GL.glEnableClientState(GL.GL_TEXTURE_COORD_ARRAY)
# normals
if normalBuffer is not None:
if vertexBuffer.indices != normalBuffer.indices:
raise RuntimeError(
"Normal and vertex buffer indices do not match!")
GL.glBindBuffer(GL.GL_ARRAY_BUFFER, normalBuffer.id)
GL.glNormalPointer(normalBuffer.dtype, 0, None)
GL.glEnableClientState(GL.GL_NORMAL_ARRAY)
# colors
if colorBuffer is not None:
if vertexBuffer.indices != colorBuffer.indices:
raise RuntimeError("Color and vertex buffer indices do not match!")
GL.glBindBuffer(GL.GL_ARRAY_BUFFER, colorBuffer.id)
GL.glColorPointer(colorBuffer.vertexSize, colorBuffer.dtype, 0, None)
GL.glEnableClientState(GL.GL_COLOR_ARRAY)
GL.glBindVertexArray(0)
return VertexArrayObject(vaoId, vertexBuffer.indices, dict())
def __init__(self):
self.handle = GLuint()
glGenVertexArrays(1, self.handle)
def __init__(self):
#consider bumping opengl version if apple supports it
#amdgpu-mesa currently supports up to 4.5
super(ControledRender,
self).__init__(512,
512,
fullscreen=False,
config=gl.Config(major_version=4,
minor_version=1),
visible=False)
print(self.context.get_info().get_version())
self.vertex_buffer = gl.GLuint(0)
self.vao = gl.GLuint(0)
#self.prev_program = (gl.GLint * 1)()
self.setupFBOandTextures()
self.setupShaders()
data = [
-1.0, -1.0, 1.0, -1.0, 1.0, 1.0, -1.0, -1.0, 1.0, 1.0, -1.0,
1.0
]
dataGl = (gl.GLfloat * len(data))(*data)
gl.glGenBuffers(1, ctypes.byref(self.vertex_buffer))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
len(dataGl) * 4, dataGl, gl.GL_STATIC_DRAW)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
gl.glUseProgram(self.programA)
self.pos_posA = gl.glGetAttribLocation(
self.programA, ctypes.create_string_buffer(b"a_position"))
assert (self.pos_posA >= 0)
gl.glEnableVertexAttribArray(self.pos_posA)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glVertexAttribPointer(self.pos_posA, 2, gl.GL_FLOAT, False, 0,
0)
if args["shape"] == "sphere":
self.radius_pos = gl.glGetUniformLocation(
self.programA, b"radius")
self.center_pos = gl.glGetUniformLocation(
self.programA, b"center")
self.checkUniformLocation(self.radius_pos)
self.checkUniformLocation(self.center_pos)
gl.glUniform1f(self.radius_pos, args["radius"])
gl.glUniform3f(self.center_pos, args["center"][0],
args["center"][1], args["center"][2])
elif args["shape"] == "cylinder":
self.radius_pos = gl.glGetUniformLocation(
self.programA, b"radius")
self.height_pos = gl.glGetUniformLocation(
self.programA, b"height")
self.checkUniformLocation(self.radius_pos)
self.checkUniformLocation(self.height_pos)
gl.glUniform1f(self.radius_pos, args["radius"])
gl.glUniform1f(self.height_pos, args["height"])
self.slice_pos = gl.glGetUniformLocation(self.programA, b"slice")
self.step_pos = gl.glGetUniformLocation(self.programA, b"step")
self.checkUniformLocation(self.slice_pos)
gl.glUniform1f(self.step_pos, 1 / args["resolution"])
#may need changed for nonsquare textures
gl.glViewport(0, 0, args["resolution"], args["resolution"])
def __init__(self, **args):
super().__init__(**args)
# create blocks
self.texture_manager = texture_manager.Texture_manager(16, 16, 256)
self.cobblestone = block_type.Block_type(self.texture_manager,
"cobblestone",
{"all": "cobblestone"})
self.grass = block_type.Block_type(self.texture_manager, "grass", {
"top": "grass",
"bottom": "dirt",
"sides": "grass_side"
})
self.dirt = block_type.Block_type(self.texture_manager, "dirt",
{"all": "dirt"})
self.stone = block_type.Block_type(self.texture_manager, "stone",
{"all": "stone"})
self.sand = block_type.Block_type(self.texture_manager, "sand",
{"all": "sand"})
self.planks = block_type.Block_type(self.texture_manager, "planks",
{"all": "planks"})
self.log = block_type.Block_type(self.texture_manager, "log", {
"top": "log_top",
"bottom": "log_top",
"sides": "log_side"
})
self.texture_manager.generate_mipmaps()
# create vertex array object
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
# create vertex position vbo
self.vertex_position_vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.vertex_position_vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_position_vbo)
gl.glBufferData(
gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(self.grass.vertex_positions)),
(gl.GLfloat *
len(self.grass.vertex_positions))(*self.grass.vertex_positions),
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(0)
# create tex coord vbo
self.tex_coord_vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.tex_coord_vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.tex_coord_vbo)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(self.grass.tex_coords)),
(gl.GLfloat *
len(self.grass.tex_coords))(*self.grass.tex_coords),
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(1, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(1)
# create index buffer object
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ibo)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER,
ctypes.sizeof(gl.GLuint * len(self.grass.indices)),
(gl.GLuint *
len(self.grass.indices))(*self.grass.indices),
gl.GL_STATIC_DRAW)
# create shader
self.shader = shader.Shader("vert.glsl", "frag.glsl")
self.shader_sampler_location = self.shader.find_uniform(
b"texture_array_sampler")
self.shader.use()
# pyglet stuff
pyglet.clock.schedule_interval(self.update, 1.0 / 60)
self.mouse_captured = False
# camera stuff
self.camera = camera.Camera(self.shader, self.width, self.height)
def __init__(self, aspect: float):
self.array = buffer_array = gl.GLuint(0)
self.vertices = vertex_buffer = gl.GLuint(0)
self.offsets = offset_buffer = gl.GLuint(0)
self.indices = index_buffer = gl.GLuint(0)
self.edge_chunks = 3
self.instances = 0
self.stored_chunks: list[int] = []
gl.glGenVertexArrays(1, byref(buffer_array))
gl.glGenBuffers(1, byref(vertex_buffer))
gl.glGenBuffers(1, byref(offset_buffer))
gl.glGenBuffers(1, byref(index_buffer))
self.shader = from_files_names(
"res/Shaders/chunk.vert",
"res/Shaders/chunk.frag"
)
self.shader.use()
width = aspect if aspect >= 1.0 else 1.0
height = 1.0 / aspect if aspect < 1.0 else 1.0
self.shader.uniforms["projection"].set((
(1.0 / width, 0.0, 0.0, 0.0),
(0.0, 1.0 / height, 0.0, 0.0),
(0.0, 0.0, 1.0, 0.0),
(0.0, 0.0, 0.0, 1.0)
))
cell_size = 1.0 / Chunk.edge_cells
# The math gets weird converting between quad and edge space.
num_quads_x = num_quads_y = Chunk.edge_cells
num_vertices_x = num_quads_x + 1
num_vertices_y = num_quads_y + 1
def construct_vertex_buffer():
# Crazy thought, instead of creating quads here, we can render points
# and use a geometry shader to create the quads.
# Saves (width + height) * 2 * sizeof(float) bytes on vertices and completely
# elminiates indices.
# Create vertex buffer.
x_slice = y_slice = cell_size
chunk_vertices = (gl.GLfloat * (num_vertices_x * num_vertices_y * 2))()
for row in range(num_vertices_y):
for col in range(num_vertices_x):
index = (row * num_vertices_x + col) * 2 # Convert to array space.
chunk_vertices[index:index + 2] = (
# Define the chunk by its center.
x_slice * float(col) - 0.5,
y_slice * float(row) - 0.5
)
gl.glBufferData(
gl.GL_ARRAY_BUFFER,
sizeof(chunk_vertices),
chunk_vertices,
gl.GL_STATIC_DRAW
)
gl.glEnableVertexAttribArray(0)
gl.glVertexAttribPointer(0, 2, gl.GL_FLOAT, False, 2 * sizeof(gl.GLfloat), 0)
def construct_offset_buffer():
gl.glBufferData(gl.GL_ARRAY_BUFFER, 9 * 2 * sizeof(gl.GLfloat), None, gl.GL_DYNAMIC_DRAW)
gl.glEnableVertexAttribArray(1)
gl.glVertexAttribPointer(1, 2, gl.GL_FLOAT, False, 2 * sizeof(gl.GLfloat), 0)
gl.glVertexAttribDivisor(1, 1)
def construct_index_buffer():
chunk_indices = (gl.GLuint * (num_quads_x * num_quads_y * 6))()
for row in range(num_quads_y):
for col in range(num_quads_x):
current_quad = row * num_quads_x + col # Calculate the current block in the chunk.
left_corner = current_quad + row # Add one extra column each time we need to go up a row.
index = current_quad * 6 # Convert to array space.
chunk_indices[index:index + 6] = (
# Quad lower right triangle.
left_corner,
left_corner + 1,
left_corner + num_vertices_x + 1,
# Quad upper right triangle.
left_corner + num_vertices_x + 1,
left_corner + num_vertices_x,
left_corner
)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER, sizeof(chunk_indices), chunk_indices, gl.GL_STATIC_DRAW)
gl.glBindVertexArray(buffer_array)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, vertex_buffer)
construct_vertex_buffer()
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, offset_buffer)
construct_offset_buffer()
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, index_buffer)
construct_index_buffer()
gl.glBindVertexArray(0)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, 0)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, 0)
def __init__(self):
"""Create an instance of a Vertex Array object."""
self._id = GLuint()
glGenVertexArrays(1, self._id)
def _build(self, program: Program, content: Sequence[BufferDescription],
index_buffer):
"""Build a vertex array compatible with the program passed in"""
gl.glGenVertexArrays(1, byref(self.glo))
gl.glBindVertexArray(self.glo)
# Lookup dict for BufferDescription attrib names
# print(content)
descr_attribs = {
attr.name: (descr, attr)
for descr in content for attr in descr.formats
}
# print('->', descr_attribs)
# Build the vao according to the shader's attribute specifications
for i, prog_attr in enumerate(program.attributes):
# print('prog_attr', prog_attr)
# Do we actually have an attribute with this name in buffer descriptions?
if prog_attr.name.startswith("gl_"):
continue
try:
buff_descr, attr_descr = descr_attribs[prog_attr.name]
except KeyError:
raise ValueError((
f"Program needs attribute '{prog_attr.name}', but is not present in buffer description. "
f"Buffer descriptions: {content}"))
# TODO: Sanity check this
# if buff_descr.instanced and i == 0:
# raise ValueError("The first vertex attribute cannot be a per instance attribute.")
# Make sure components described in BufferDescription and in the shader match
if prog_attr.components != attr_descr.components:
raise ValueError((
f"Program attribute '{prog_attr.name}' has {prog_attr.components} components "
f"while the buffer description has {attr_descr.components} components. "
))
# TODO: Compare gltype between buffer descr and program attr
gl.glEnableVertexAttribArray(prog_attr.location)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, buff_descr.buffer.glo)
# TODO: Detect normalization
normalized = (gl.GL_TRUE if attr_descr.name
in buff_descr.normalized else gl.GL_FALSE)
gl.glVertexAttribPointer(
prog_attr.location, # attrib location
attr_descr.components, # 1, 2, 3 or 4
attr_descr.gl_type, # GL_FLOAT etc
normalized, # normalize
buff_descr.stride,
c_void_p(attr_descr.offset),
)
# print((
# f"gl.glVertexAttribPointer(\n"
# f" {prog_attr.location}, # attrib location\n"
# f" {attr_descr.components}, # 1, 2, 3 or 4\n"
# f" {attr_descr.gl_type}, # GL_FLOAT etc\n"
# f" {normalized}, # normalize\n"
# f" {buff_descr.stride},\n"
# f" c_void_p({attr_descr.offset}),\n"
# ))
# TODO: Sanity check this
if buff_descr.instanced:
gl.glVertexAttribDivisor(prog_attr.location, 1)
if index_buffer is not None:
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, index_buffer.glo)
def __init__(self, **args):
super().__init__(**args)
# create blocks
self.texture_manager = texture_manager.Texture_manager(
16, 16, 256
) # create our texture manager (256 textures that are 16 x 16 pixels each)
self.cobblestone = block_type.Block_type(
self.texture_manager, "cobblestone", {"all": "cobblestone"}
) # create each one of our blocks with the texture manager and a list of textures per face
self.grass = block_type.Block_type(self.texture_manager, "grass", {
"top": "grass",
"bottom": "dirt",
"sides": "grass_side"
})
self.dirt = block_type.Block_type(self.texture_manager, "dirt",
{"all": "dirt"})
self.stone = block_type.Block_type(self.texture_manager, "stone",
{"all": "stone"})
self.sand = block_type.Block_type(self.texture_manager, "sand",
{"all": "sand"})
self.planks = block_type.Block_type(self.texture_manager, "planks",
{"all": "planks"})
self.log = block_type.Block_type(self.texture_manager, "log", {
"top": "log_top",
"bottom": "log_top",
"sides": "log_side"
})
self.texture_manager.generate_mipmaps(
) # generate mipmaps for our texture manager's texture
# create vertex array object
self.vao = gl.GLuint(0)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
# create vertex position vbo
self.vertex_position_vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.vertex_position_vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_position_vbo)
gl.glBufferData(
gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(self.grass.vertex_positions)),
(gl.GLfloat * len(self.grass.vertex_positions))(
*self.grass.vertex_positions
), # use grass block's vertex positions
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(0)
# create tex coord vbo
self.tex_coord_vbo = gl.GLuint(0)
gl.glGenBuffers(1, ctypes.byref(self.tex_coord_vbo))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.tex_coord_vbo)
gl.glBufferData(
gl.GL_ARRAY_BUFFER,
ctypes.sizeof(gl.GLfloat * len(self.grass.tex_coords)),
(gl.GLfloat * len(self.grass.tex_coords))(
*self.grass.tex_coords
), # use grass block's texture coordinates positions
gl.GL_STATIC_DRAW)
gl.glVertexAttribPointer(1, 3, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glEnableVertexAttribArray(1)
# create index buffer object
self.ibo = gl.GLuint(0)
gl.glGenBuffers(1, self.ibo)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ibo)
gl.glBufferData(
gl.GL_ELEMENT_ARRAY_BUFFER,
ctypes.sizeof(gl.GLuint * len(self.grass.indices)),
(gl.GLuint * len(self.grass.indices))(
*self.grass.indices), # use grass block's indices
gl.GL_STATIC_DRAW)
# create shader
self.shader = shader.Shader("vert.glsl", "frag.glsl")
self.shader_matrix_location = self.shader.find_uniform(b"matrix")
self.shader_sampler_location = self.shader.find_uniform(
b"texture_array_sampler"
) # find our texture array sampler's uniform
self.shader.use()
# create matrices
self.mv_matrix = matrix.Matrix()
self.p_matrix = matrix.Matrix()
self.x = 0
pyglet.clock.schedule_interval(self.update, 1.0 / 60)
def __init__(self, frames):
#consider bumping opengl version if apple supports it
#amdgpu-mesa currently supports up to 4.5
super(ControledRender,
self).__init__(512,
512,
fullscreen=False,
config=gl.Config(major_version=4,
minor_version=1),
visible=False)
print(self.context.get_info().get_version())
self.frames = frames
self.vertex_buffer = gl.GLuint(0)
self.vao = gl.GLuint(0)
#self.prev_program = (gl.GLint * 1)()
self.dimx = args["A"].shape[0]
self.dimy = args["A"].shape[1]
A = args["A"].astype(np.float32)
#print("A shape " + str(A.shape))
#print(str(A.dtype))
#print(A)
B = args["B"].astype(np.float32)
#self.dp = self.tdata.ctypes.data_as(ctypes.POINTER(ctypes.c_void_p))
self.Ap = A.ctypes.data_as(ctypes.POINTER(ctypes.c_void_p))
self.Bp = B.ctypes.data_as(ctypes.POINTER(ctypes.c_void_p))
self.setupFBOandTextures()
self.setupShaders()
data = [
-1.0, -1.0, 1.0, -1.0, 1.0, 1.0, -1.0, -1.0, 1.0, 1.0, -1.0,
1.0
]
dataGl = (gl.GLfloat * len(data))(*data)
gl.glGenBuffers(1, ctypes.byref(self.vertex_buffer))
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glBufferData(gl.GL_ARRAY_BUFFER,
len(dataGl) * 4, dataGl, gl.GL_STATIC_DRAW)
gl.glGenVertexArrays(1, ctypes.byref(self.vao))
gl.glBindVertexArray(self.vao)
gl.glUseProgram(self.programA)
self.pos_posA = gl.glGetAttribLocation(
self.programA, ctypes.create_string_buffer(b"a_position"))
assert (self.pos_posA >= 0)
gl.glEnableVertexAttribArray(self.pos_posA)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glVertexAttribPointer(self.pos_posA, 2, gl.GL_FLOAT, False, 0,
0)
self.tex_pos_A_A = gl.glGetUniformLocation(self.programA, b"A")
self.tex_pos_A_B = gl.glGetUniformLocation(self.programA, b"B")
self.feed_pos_A = gl.glGetUniformLocation(self.programA, b"f")
self.kill_pos_A = gl.glGetUniformLocation(self.programA, b"k")
self.dA_pos_A = gl.glGetUniformLocation(self.programA, b"dA")
self.dB_pos_A = gl.glGetUniformLocation(self.programA, b"dB")
self.dt_pos_A = gl.glGetUniformLocation(self.programA, b"timestep")
self.step_pos_A = gl.glGetUniformLocation(self.programA, b"step")
gl.glUniform1f(self.feed_pos_A, args["feed"])
gl.glUniform1f(self.kill_pos_A, args["kill"])
gl.glUniform1f(self.dA_pos_A, args["dA"])
gl.glUniform1f(self.dB_pos_A, args["dB"])
gl.glUniform1f(self.dt_pos_A, args["dt"])
#may need changed for nonsquare textures
gl.glUniform1f(self.step_pos_A, 1 / self.dimx)
gl.glUseProgram(self.programB)
self.pos_posB = gl.glGetAttribLocation(
self.programB, ctypes.create_string_buffer(b"a_position"))
assert (self.pos_posB >= 0)
gl.glEnableVertexAttribArray(self.pos_posB)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vertex_buffer)
gl.glVertexAttribPointer(self.pos_posB, 2, gl.GL_FLOAT, False, 0,
0)
self.tex_pos_B_A = gl.glGetUniformLocation(self.programB, b"A")
self.tex_pos_B_B = gl.glGetUniformLocation(self.programB, b"B")
self.feed_pos_B = gl.glGetUniformLocation(self.programB, b"f")
self.kill_pos_B = gl.glGetUniformLocation(self.programB, b"k")
self.dA_pos_B = gl.glGetUniformLocation(self.programB, b"dA")
self.dB_pos_B = gl.glGetUniformLocation(self.programB, b"dB")
self.dt_pos_B = gl.glGetUniformLocation(self.programB, b"timestep")
self.step_pos_B = gl.glGetUniformLocation(self.programB, b"step")
gl.glUniform1f(self.feed_pos_B, args["feed"])
gl.glUniform1f(self.kill_pos_B, args["kill"])
gl.glUniform1f(self.dA_pos_B, args["dA"])
gl.glUniform1f(self.dB_pos_B, args["dB"])
gl.glUniform1f(self.dt_pos_B, args["dt"])
#may need changed for nonsquare textures
gl.glUniform1f(self.step_pos_B, 1 / self.dimx)
gl.glViewport(0, 0, self.dimx, self.dimy)
def __init__(self):
self.__value = None
buf = ct.c_uint()
gl.glGenVertexArrays(1, ct.byref(buf))
self.__value = buf.value