def vertexAttribPointer(self,
vbo,
varName,
size,
gltype,
normalized=bgl.GL_FALSE,
stride=0,
buf=buf_zero,
enable=True):
assert varName in self.shaderVars, 'Variable %s not found' % varName
v = self.shaderVars[varName]
q, l, t = v['qualifier'], v['location'], v['type']
if l == -1:
if not v['reported']:
print('COULD NOT FIND %s' % (varName))
v['reported'] = True
return
if DEBUG_PRINT:
print(
'assign (enable=%s) vertattrib pointer: %s (%s,%d,%s) = %d (%dx%s,normalized=%s,stride=%d)'
% (str(enable), varName, q, l, t, vbo, size,
self.gltype_names[gltype], str(normalized), stride))
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, vbo)
bgl.glVertexAttribPointer(l, size, gltype, normalized, stride, buf)
if self.checkErrors:
self.drawing.glCheckError('vertexAttribPointer %s' % varName)
if enable: bgl.glEnableVertexAttribArray(l)
if self.checkErrors:
self.drawing.glCheckError('vertexAttribPointer %s' % varName)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
def __init__(self, dimensions):
# Generate dummy float image buffer
self.dimensions = dimensions
width, height = dimensions
pixels = [1, 0.2, 0.1, 1.0] * width * height
pixels = bgl.Buffer(bgl.GL_FLOAT, width * height * 4, pixels)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA16F, width, height,
0, bgl.GL_RGBA, bgl.GL_FLOAT, pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_LINEAR)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_LINEAR)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def bind(self, co, buf_id, offset):
bgl.glUniform1f(self.unif_offset, float(offset))
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, co[0])
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL.buf)
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, buf_id[0])
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL.buf)
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
def _draw_texture(texture_id, x, y, width, height):
# INITIALIZATION
# Getting shader program
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, vertex_array)
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
# Generate geometry buffers for drawing textured quad
position = [x, y, x + width, y, x + width, y + height, x, y + height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
# DRAWING
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, texture_id)
bgl.glBindVertexArray(vertex_array[0])
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, vertex_buffer[0])
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, vertex_buffer[1])
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glDrawArrays(bgl.GL_TRIANGLE_FAN, 0, 4)
bgl.glBindVertexArray(0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# DELETING
bgl.glDeleteBuffers(2, vertex_buffer)
bgl.glDeleteVertexArrays(1, vertex_array)
def __init__(self, dimensions):
# Generate dummy float image buffer
self.dimensions = dimensions
width, height = dimensions
pixels = [0.1, 0.2, 0.1, 1.0] * width * height
pixels = bgl.Buffer(bgl.GL_FLOAT, width * height * 4, pixels)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA16F, width, height, 0, bgl.GL_RGBA, bgl.GL_FLOAT, pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER, bgl.GL_LINEAR)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER, bgl.GL_LINEAR)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program);
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(shader_program[0], "texCoord");
position_location = bgl.glGetAttribLocation(shader_program[0], "pos");
bgl.glEnableVertexAttribArray(texturecoord_location);
bgl.glEnableVertexAttribArray(position_location);
# Generate geometry buffers for drawing textured quad
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT, bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT, bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def _init_opengl(self, engine, scene):
# Create texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
self.texture_id = self.texture[0]
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
engine.bind_display_space_shader(scene)
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
width = self._width * self._pixel_size
height = self._height * self._pixel_size
position = [
self._offset_x, self._offset_y, self._offset_x + width,
self._offset_y, self._offset_x + width, self._offset_y + height,
self._offset_x, self._offset_y + height
]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, NULL)
bgl.glBindVertexArray(NULL)
engine.unbind_display_space_shader()
def __init__(self, dimensions):
self.dimensions = dimensions
width, height = dimensions
pixels = [0.1, 0.2, 0.1, 1.0] * width * height
pixels = bgl.Buffer(bgl.GL_FLOAT, width * height * 4, pixels)
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA16F, width, height,
0, bgl.GL_RGBA, bgl.GL_FLOAT, pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_LINEAR)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def enableVertexAttribArray(self, varName):
assert varName in self.shaderVars, 'Variable %s not found' % varName
v = self.shaderVars[varName]
q,l,t = v['qualifier'],v['location'],v['type']
if l == -1:
if not v['reported']:
print('COULD NOT FIND %s' % (varName))
v['reported'] = True
return
if DEBUG_PRINT:
print('enable vertattrib array: %s (%s,%d,%s)' % (varName, q, l, t))
bgl.glEnableVertexAttribArray(l)
self.checkErrors(f'enableVertexAttribArray {varName}')
def enableVertexAttribArray(self, varName):
assert varName in self.shaderVars, 'Variable %s not found' % varName
v = self.shaderVars[varName]
q,l,t = v['qualifier'],v['location'],v['type']
if l == -1:
if not v['reported']:
print('COULD NOT FIND %s' % (varName))
v['reported'] = True
return
if DEBUG_PRINT:
print('enable vertattrib array: %s (%s,%d,%s)' % (varName, q, l, t))
bgl.glEnableVertexAttribArray(l)
if self.checkErrors:
self.drawing.glCheckError('enableVertexAttribArray %s' % varName)
def init_opengl(self, engine, scene):
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
self.generate_texture()
engine.bind_display_space_shader(scene)
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
position = [
0.0, 0.0, self.width, 0.0, self.width, self.height, 0.0,
self.height
]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
engine.unbind_display_space_shader()
def prepare_viewport(self, ctx, dg):
width, height = ctx.region.width, ctx.region.height
self.dim = (width, height)
buf = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_DRAW_FRAMEBUFFER_BINDING, buf)
fb = buf[0]
self.genfb(width, height)
bgl.glGenVertexArrays(1, buf)
self.vao = buf[0]
bgl.glBindVertexArray(self.vao)
quad = bgl.Buffer(bgl.GL_FLOAT, 2 * 4,
[0, 0, width, 0, width, height, 0, height])
uv = bgl.Buffer(bgl.GL_FLOAT, 2 * 4, [0, 0, 1, 0, 1, 1, 0, 1])
self.bind_display_space_shader(dg.scene)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, buf)
self.unbind_display_space_shader()
self.quad_in = bgl.glGetAttribLocation(buf[0], "pos")
self.uv_in = bgl.glGetAttribLocation(buf[0], "texCoord")
bgl.glEnableVertexAttribArray(self.quad_in)
bgl.glEnableVertexAttribArray(self.uv_in)
self.vtx_buf = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vtx_buf)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vtx_buf[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 2 * 4 * 4, quad,
bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(self.quad_in, 2, bgl.GL_FLOAT, bgl.GL_FALSE,
0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vtx_buf[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 2 * 4 * 4, uv,
bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(self.uv_in, 2, bgl.GL_FLOAT, bgl.GL_FALSE, 0,
None)
bgl.glDisableVertexAttribArray(self.quad_in)
bgl.glDisableVertexAttribArray(self.uv_in)
bgl.glBindFramebuffer(bgl.GL_FRAMEBUFFER, fb)
def vertexAttribPointer(self, vbo, varName, size, gltype, normalized=bgl.GL_FALSE, stride=0, buf=buf_zero, enable=True):
assert varName in self.shaderVars, 'Variable %s not found' % varName
v = self.shaderVars[varName]
q,l,t = v['qualifier'],v['location'],v['type']
if l == -1:
if not v['reported']:
print('COULD NOT FIND %s' % (varName))
v['reported'] = True
return
if DEBUG_PRINT:
print('assign (enable=%s) vertattrib pointer: %s (%s,%d,%s) = %d (%dx%s,normalized=%s,stride=%d)' % (str(enable), varName, q, l, t, vbo, size, self.gltype_names[gltype], str(normalized),stride))
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, vbo)
bgl.glVertexAttribPointer(l, size, gltype, normalized, stride, buf)
if self.checkErrors:
self.drawing.glCheckError('vertexAttribPointer %s' % varName)
if enable: bgl.glEnableVertexAttribArray(l)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
def view_draw(self, ctx, dg):
if self.scene is None:
return
buf = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_DRAW_FRAMEBUFFER_BINDING, buf)
if buf[0] == 0:
return
width, height = ctx.region.width, ctx.region.height
if self.dim != (width, height):
self.delfb()
self.prepare_viewport(ctx, dg)
# Render the scene
bgl.glViewport(0, 0, width, height)
cam = ctx.region_data.perspective_matrix
zu.scene_cam(self.scene, mat(cam))
zu.scene_draw(self.scene, self.fb)
# Copy the rendered scene to the viewport (through the color space adjustment shader)
bgl.glBindFramebuffer(bgl.GL_FRAMEBUFFER, buf[0])
bgl.glEnable(bgl.GL_BLEND)
bgl.glBlendFunc(bgl.GL_SRC_ALPHA, bgl.GL_ONE_MINUS_SRC_ALPHA)
self.bind_display_space_shader(dg.scene)
bgl.glBindVertexArray(self.vao)
bgl.glEnableVertexAttribArray(self.quad_in)
bgl.glEnableVertexAttribArray(self.uv_in)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.tex)
bgl.glDrawArrays(bgl.GL_TRIANGLE_FAN, 0, 4)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
bgl.glDisableVertexAttribArray(self.quad_in)
bgl.glDisableVertexAttribArray(self.uv_in)
bgl.glBindVertexArray(0)
self.unbind_display_space_shader()
bgl.glDisable(bgl.GL_BLEND)
def Draw(self, index_offset):
self.first_index = index_offset
bgl.glUseProgram(self.shader.program)
bgl.glBindVertexArray(self.vao[0])
bgl.glUniformMatrix4fv(self.unif_MV, 1, bgl.GL_TRUE, self.MV)
bgl.glUniformMatrix4fv(self.unif_MVP, 1, bgl.GL_TRUE, self.MVP)
if self.draw_tris:
bgl.glUniform1f(self.unif_offset, float(index_offset)) # bgl has no glUniform1ui :\
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_tris[0])
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_tri_indices[0])
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL)
bgl.glDrawArrays(bgl.GL_TRIANGLES, 0, self.num_tris * 3)
index_offset += self.num_tris
bgl.glDepthRange(-0.00005, 0.99995)
if self.draw_edges:
bgl.glUniform1f(self.unif_offset, float(index_offset)) #TODO: use glUniform1ui
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_edges[0])
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_edge_indices[0])
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
bgl.glDrawArrays(bgl.GL_LINES, 0, self.num_edges * 2)
index_offset += self.num_edges
if self.draw_verts:
bgl.glUniform1f(self.unif_offset, float(index_offset)) #TODO: use glUniform1ui
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_verts[0])
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_looseverts_indices[0])
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT, bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
bgl.glDrawArrays(bgl.GL_POINTS, 0, self.num_verts)
bgl.glDepthRange(0.0, 1.0)
def __init__(self, img):
print('CustomDrawData.__init__()')
self.img = img
width, height = self.dimensions = self.img.size
imgbytes = img.transpose(Image.FLIP_TOP_BOTTOM).tobytes()
nimg = numpy.frombuffer(imgbytes, dtype=numpy.uint8)
nimg = nimg.astype(numpy.float32) / 255.0
pixels = bgl.Buffer(bgl.GL_FLOAT, width * height * 4, nimg)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA16F, width, height,
0, bgl.GL_RGBA, bgl.GL_FLOAT, pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_NEAREST)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_NEAREST)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def gpu_Indices_enable_state():
_store_current_shader_state(PreviousGLState)
bgl.glUseProgram(GPU_Indices.shader.program)
bgl.glEnableVertexAttribArray(GPU_Indices.attr_pos)
bgl.glEnableVertexAttribArray(GPU_Indices.attr_primitive_id)
def __init__(self, dimensions):
global urhoImage
# Generate dummy float image buffer
self.dimensions = dimensions
width, height = dimensions
print("NEW CUSTOMDRAWDATA with resolution %s:%s" % (width, height))
blank = Image.new('RGBA', (width, height), (100, 100, 100, 255))
blank.alpha_composite(urhoImage,
dest=(int(width / 2 - urhoImage.width / 2),
int(height / 2 - urhoImage.height / 2)))
#self.pixels = [255,0,0,255] * width * height
self.pixels = list(blank.tobytes())
self.pixels = bgl.Buffer(bgl.GL_BYTE, width * height * 4, self.pixels)
# Generate texture
self.updateTextureOnDraw = False
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA, width, height, 0,
bgl.GL_RGBA, bgl.GL_UNSIGNED_BYTE, self.pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_LINEAR)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_LINEAR)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def Draw(self, index_offset):
self.first_index = index_offset
bgl.glUseProgram(self.shader.program)
bgl.glBindVertexArray(self.vao[0])
bgl.glUniformMatrix4fv(self.unif_MV, 1, bgl.GL_TRUE, self.MV)
bgl.glUniformMatrix4fv(self.unif_MVP, 1, bgl.GL_TRUE, self.MVP)
if self.draw_tris:
bgl.glUniform1f(self.unif_offset,
float(index_offset)) # bgl has no glUniform1ui :\
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_tris[0])
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, self._NULL)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_tri_indices[0])
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, self._NULL)
bgl.glDrawArrays(bgl.GL_TRIANGLES, 0, self.num_tris * 3)
index_offset += self.num_tris
bgl.glDepthRange(-0.00005, 0.99995)
if self.draw_edges:
bgl.glUniform1f(self.unif_offset,
float(index_offset)) #TODO: use glUniform1ui
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_edges[0])
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_edge_indices[0])
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
bgl.glDrawArrays(bgl.GL_LINES, 0, self.num_edges * 2)
index_offset += self.num_edges
if self.draw_verts:
bgl.glUniform1f(self.unif_offset,
float(index_offset)) #TODO: use glUniform1ui
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vbo_verts[0])
bgl.glVertexAttribPointer(self.attr_pos, 3, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_pos)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER,
self.vbo_looseverts_indices[0])
bgl.glVertexAttribPointer(self.attr_primitive_id, 1, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, self._NULL)
bgl.glEnableVertexAttribArray(self.attr_primitive_id)
bgl.glDrawArrays(bgl.GL_POINTS, 0, self.num_verts)
bgl.glDepthRange(0.0, 1.0)
def try_initialize(self):
if self.initialized:
return
self.initialized = True
resx, resy = self.resx, self.resy
width, height = self.dimensions
self.pixels = bgl.Buffer(bgl.GL_FLOAT, resx * resy * 3, self.pixels_np)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGB16F, resx, resy, 0,
bgl.GL_RGB, bgl.GL_FLOAT, self.pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_NEAREST)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_NEAREST)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_WRAP_S,
bgl.GL_CLAMP_TO_EDGE)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_WRAP_T,
bgl.GL_CLAMP_TO_EDGE)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def __init__(self, viewport_dimensions, image_dimensions, pixels):
self.log = logging.getLogger('blospray')
self.log.info('CustomDrawData.__init__(viewport_dimensions=%s, image_dimensions=%s, fbpixels=%s) [%s]' % \
(viewport_dimensions, image_dimensions, pixels.shape, self))
viewport_width, viewport_height = self.viewport_dimensions = viewport_dimensions
image_width, image_height = self.image_dimensions = image_dimensions
assert pixels is not None
pixels = bgl.Buffer(bgl.GL_FLOAT, image_width * image_height * 4,
pixels)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA16F, image_width,
image_height, 0, bgl.GL_RGBA, bgl.GL_FLOAT, pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_NEAREST)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_NEAREST)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
position = [
0.0, 0.0, viewport_width, 0.0, viewport_width, viewport_height,
0.0, viewport_height
]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def __init__(self, scene, dimensions, perspective, blocksize):
print('redraw!')
# Generate dummy float image buffer
self.dimensions = dimensions
self.perspective = perspective
width, height = dimensions
resx, resy = scene.res
if blocksize != 0:
resx //= blocksize
resy //= blocksize
pixels = np.empty(resx * resy * 3, np.float32)
scene._fast_export_image(pixels, blocksize)
self.pixels = bgl.Buffer(bgl.GL_FLOAT, resx * resy * 3, pixels)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGB16F, resx, resy, 0,
bgl.GL_RGB, bgl.GL_FLOAT, self.pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_NEAREST)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_NEAREST)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_WRAP_S,
bgl.GL_CLAMP_TO_EDGE)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_WRAP_T,
bgl.GL_CLAMP_TO_EDGE)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
# Bind shader that converts from scene linear to display space,
# use the scene's color management settings.
shader_program = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_CURRENT_PROGRAM, shader_program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
shader_program[0], "texCoord")
position_location = bgl.glGetAttribLocation(shader_program[0], "pos")
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def __init__(self, dimensions, perspective, region3d):
self.dimensions = dimensions
self.perspective = perspective
width = bpy.context.scene.tina_resolution_x
height = bpy.context.scene.tina_resolution_y
pixels = worker.render_main(width, height, region3d)
# Generate dummy image buffer
pixels = bgl.Buffer(bgl.GL_INT, width * height, pixels)
# Generate texture
self.texture = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenTextures(1, self.texture)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.texture[0])
bgl.glTexImage2D(bgl.GL_TEXTURE_2D, 0, bgl.GL_RGBA16F, width, height,
0, bgl.GL_RGBA, bgl.GL_UNSIGNED_INT_8_8_8_8_REV,
pixels)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MIN_FILTER,
bgl.GL_LINEAR)
bgl.glTexParameteri(bgl.GL_TEXTURE_2D, bgl.GL_TEXTURE_MAG_FILTER,
bgl.GL_LINEAR)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, 0)
bgl.glUseProgram(self.program)
# Generate vertex array
self.vertex_array = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGenVertexArrays(1, self.vertex_array)
bgl.glBindVertexArray(self.vertex_array[0])
texturecoord_location = bgl.glGetAttribLocation(
self.program, "texCoord")
position_location = bgl.glGetAttribLocation(self.program, "pos")
tex0_location = bgl.glGetAttribLocation(self.program, "tex0")
bgl.glUniform1i(tex0_location, 0)
bgl.glEnableVertexAttribArray(texturecoord_location)
bgl.glEnableVertexAttribArray(position_location)
# Generate geometry buffers for drawing textured quad
width, height = dimensions
position = [0.0, 0.0, width, 0.0, width, height, 0.0, height]
position = bgl.Buffer(bgl.GL_FLOAT, len(position), position)
texcoord = [0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0]
texcoord = bgl.Buffer(bgl.GL_FLOAT, len(texcoord), texcoord)
self.vertex_buffer = bgl.Buffer(bgl.GL_INT, 2)
bgl.glGenBuffers(2, self.vertex_buffer)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, position, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(position_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, self.vertex_buffer[1])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER, 32, texcoord, bgl.GL_STATIC_DRAW)
bgl.glVertexAttribPointer(texturecoord_location, 2, bgl.GL_FLOAT,
bgl.GL_FALSE, 0, None)
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, 0)
bgl.glBindVertexArray(0)
def draw_view():
######################
######## BIND ########
######################
first_time = not bgl.glIsVertexArray(namespace['vao'][0])
if first_time:
namespace['uniform_set'] = False
# Unlike VBOs, a VAO has to be generated and deleted from within the draw callback in which it will be bound.
bgl.glGenVertexArrays(1, namespace['vao'])
bgl.glBindVertexArray(namespace['vao'][0])
float_byte_count = 4
# Attribute: "point", 3D float vector
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, namespace['vbo_point'][0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER,
len(namespace['data_point']) * float_byte_count,
namespace['data_point'], bgl.GL_DYNAMIC_DRAW)
bgl.glVertexAttribPointer(0, 3, bgl.GL_FLOAT, bgl.GL_FALSE, 0, None)
bgl.glEnableVertexAttribArray(0)
# Attribute: "color", 4D float vector
bgl.glBindBuffer(bgl.GL_ARRAY_BUFFER, namespace['vbo_color'][0])
bgl.glBufferData(bgl.GL_ARRAY_BUFFER,
len(namespace['data_color']) * float_byte_count,
namespace['data_color'], bgl.GL_DYNAMIC_DRAW)
bgl.glVertexAttribPointer(1, 4, bgl.GL_FLOAT, bgl.GL_FALSE, 0, None)
bgl.glEnableVertexAttribArray(1)
bgl.glBindVertexArray(0)
######################
######## DRAW ########
######################
bgl.glEnable(bgl.GL_BLEND)
bgl.glUseProgram(namespace['shader_program'])
if not namespace['uniform_set']:
bgl.glUniformMatrix4fv(
namespace['perspective_uniform_location'],
1,
bgl.
GL_TRUE, # Matrices in Blender are row-major while matrices in OpenGL are column-major, so Blender's perspective matrix has to be transposed for OpenGL.
namespace['projection_matrix'])
# In this case I only want to update the uniform once, even though namespace['projection_matrix'] is being updated constantly.
namespace['uniform_set'] = True
bgl.glBindVertexArray(namespace['vao'][0])
bgl.glDrawArrays(bgl.GL_TRIANGLES, 0, 3)
bgl.glUseProgram(0)
bgl.glBindVertexArray(0)
bgl.glDisable(bgl.GL_BLEND)
