Community
cancel
Showing results for 
Search instead for 
Did you mean: 
rpedela
Beginner
119 Views

Linux OpenGL: FBO stencil buffer

Jump to solution
I am doing some feasibility research on using iCore graphics on Linux with OpenGL. I have searched for the answer to this question but found none.

Assuming GL_EXT_framebuffer_object support, is it possible to create an RGBA8, D24, S8 FBO? The reason I ask is that on ATI and NVIDIA it is possible but a packed depth/stencil buffer must be used. As far as I can tell GL_EXT_packed_depth_stencil is not supported. So can separate depth and stencil buffers be attached to an FBO?
0 Kudos
1 Solution
119 Views
Hi,

I don't believe any current Intel graphics hardware in the market supports GL_EXT_packed_depth_stencil.

Regarding independent stencil buffers, even though the spec supports it, it is generally not advised to be used, as it is not guaranteed to be implemented. Refer to: http://www.opengl.org/wiki/GL_EXT_framebuffer_object#Stencil

Can you avoid stencil buffer and use Color+Depth only?

See http://www.opengl.org/wiki/GL_EXT_framebuffer_object#Color_texture.2C_Depth_texture

Cheers,
-Ganesh

View solution in original post

3 Replies
120 Views
Hi,

I don't believe any current Intel graphics hardware in the market supports GL_EXT_packed_depth_stencil.

Regarding independent stencil buffers, even though the spec supports it, it is generally not advised to be used, as it is not guaranteed to be implemented. Refer to: http://www.opengl.org/wiki/GL_EXT_framebuffer_object#Stencil

Can you avoid stencil buffer and use Color+Depth only?

See http://www.opengl.org/wiki/GL_EXT_framebuffer_object#Color_texture.2C_Depth_texture

Cheers,
-Ganesh

View solution in original post

rpedela
Beginner
119 Views
I need to simulate the capabilities of the screen with an FBO. So no, color + depth does not work. Do you know of any plan to support GL_EXT_packed_depth_stencil in Intel HD graphics?
119 Views
We are working to add more inclusive support of the rendering APIs and their extensions, but there are no announced plans to specifically support GL_EXT_packed_depth_stencil yet.
Reply