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Make Camera.fbo the entity rendered to, with a separate fbo for emitted frames

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This commit is contained in:
Grant Sanderson 2023-01-20 16:31:09 -08:00
parent 66d12a1687
commit d08a16a5fb
1 changed files with 9 additions and 11 deletions
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20
manimlib/camera/camera.py
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@ -241,19 +241,18 @@ class Camera(object):
def init_context(self, ctx: moderngl.Context | None = None) -> None:
if ctx is None:
ctx = moderngl.create_standalone_context()
fbo = self.get_fbo(ctx, 0)
fbo = self.get_fbo(ctx, self.samples)
else:
fbo = ctx.detect_framebuffer()
self.ctx = ctx
self.fbo = fbo
self.fbo.use()
self.set_ctx_blending()
self.ctx.enable(moderngl.PROGRAM_POINT_SIZE)
# For multisample antialiasing
fbo_msaa = self.get_fbo(ctx, self.samples)
fbo_msaa.use()
self.fbo_msaa = fbo_msaa
# This is the frame buffer we'll draw into when emitting frames
self.draw_fbo = self.get_fbo(ctx, 0)
def set_ctx_blending(self, enable: bool = True) -> None:
if enable:
@ -298,7 +297,6 @@ class Camera(object):
def clear(self) -> None:
self.fbo.clear(*self.background_rgba)
self.fbo_msaa.clear(*self.background_rgba)
def reset_pixel_shape(self, new_width: int, new_height: int) -> None:
self.pixel_width = new_width
@ -306,13 +304,13 @@ class Camera(object):
self.refresh_perspective_uniforms()
def get_raw_fbo_data(self, dtype: str = 'f1') -> bytes:
# Copy blocks from the fbo_msaa to the drawn fbo using Blit
# Copy blocks from fbo into draw_fbo using Blit
pw, ph = (self.pixel_width, self.pixel_height)
gl.glBindFramebuffer(gl.GL_READ_FRAMEBUFFER, self.fbo_msaa.glo)
gl.glBindFramebuffer(gl.GL_DRAW_FRAMEBUFFER, self.fbo.glo)
gl.glBindFramebuffer(gl.GL_READ_FRAMEBUFFER, self.fbo.glo)
gl.glBindFramebuffer(gl.GL_DRAW_FRAMEBUFFER, self.draw_fbo.glo)
gl.glBlitFramebuffer(0, 0, pw, ph, 0, 0, pw, ph, gl.GL_COLOR_BUFFER_BIT, gl.GL_LINEAR)
return self.fbo.read(
viewport=self.fbo.viewport,
return self.draw_fbo.read(
viewport=self.draw_fbo.viewport,
components=self.n_channels,
dtype=dtype,
)