Memory footprint of VAOsCan Vertex Array Objects (VAOs) be shared across EAGLContexts in OpenGL ES?Draw using VAO with multiple VBOs and IBOs (multiple objects) OpenGLES 2 on iOSCPU bound rendering on iPad 3Where and what is “OpenGL memory” used by VBOs, etcOpenGL ES iOS drawing performance a lot slower with VBOs than withoutState preserving particle system for OpenGL ES 2.0OpenGL (ES 2.0 but not specific to ES): is GL_STATIC_DRAW meant for use with glBufferData?EXC_BAD_ACCESS when freeing a IBO and VAOObjective-c Opengl memory leakRepeates call glBufferData failed to allocate memory for new buffer
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Memory footprint of VAOs
Can Vertex Array Objects (VAOs) be shared across EAGLContexts in OpenGL ES?Draw using VAO with multiple VBOs and IBOs (multiple objects) OpenGLES 2 on iOSCPU bound rendering on iPad 3Where and what is “OpenGL memory” used by VBOs, etcOpenGL ES iOS drawing performance a lot slower with VBOs than withoutState preserving particle system for OpenGL ES 2.0OpenGL (ES 2.0 but not specific to ES): is GL_STATIC_DRAW meant for use with glBufferData?EXC_BAD_ACCESS when freeing a IBO and VAOObjective-c Opengl memory leakRepeates call glBufferData failed to allocate memory for new buffer
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Can someone tell me how large VAOs are in cpu/gpu memory compared to VBOs? My plan was to allocate a large number of VAOs at program start as a pool, then assign them to certain render calls as needed.
Regards
opengl-es
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
add a comment |
Can someone tell me how large VAOs are in cpu/gpu memory compared to VBOs? My plan was to allocate a large number of VAOs at program start as a pool, then assign them to certain render calls as needed.
Regards
opengl-es
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
add a comment |
Can someone tell me how large VAOs are in cpu/gpu memory compared to VBOs? My plan was to allocate a large number of VAOs at program start as a pool, then assign them to certain render calls as needed.
Regards
opengl-es
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
Can someone tell me how large VAOs are in cpu/gpu memory compared to VBOs? My plan was to allocate a large number of VAOs at program start as a pool, then assign them to certain render calls as needed.
Regards
opengl-es
opengl-es
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
asked Mar 26 at 17:16
Desperado17Desperado17
1446 bronze badges
1446 bronze badges
add a comment |
add a comment |
1 Answer
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VAOs are just meta-data - buffer bindings and offsets. VBOs are actual data buffers containing all of your vertex data. VAOs will be orders of magnitude smaller than VBOs.
That said, why do you want to create a pool of them? That implies you'll be recreating them at draw time, which somewhat defeats the point. The only real advantage of VAOs vs just direct binds and offsets is that you don't have the runtime cost of recreating them all the time ...
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
add a comment |
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1 Answer
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1 Answer
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VAOs are just meta-data - buffer bindings and offsets. VBOs are actual data buffers containing all of your vertex data. VAOs will be orders of magnitude smaller than VBOs.
That said, why do you want to create a pool of them? That implies you'll be recreating them at draw time, which somewhat defeats the point. The only real advantage of VAOs vs just direct binds and offsets is that you don't have the runtime cost of recreating them all the time ...
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
add a comment |
VAOs are just meta-data - buffer bindings and offsets. VBOs are actual data buffers containing all of your vertex data. VAOs will be orders of magnitude smaller than VBOs.
That said, why do you want to create a pool of them? That implies you'll be recreating them at draw time, which somewhat defeats the point. The only real advantage of VAOs vs just direct binds and offsets is that you don't have the runtime cost of recreating them all the time ...
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
add a comment |
VAOs are just meta-data - buffer bindings and offsets. VBOs are actual data buffers containing all of your vertex data. VAOs will be orders of magnitude smaller than VBOs.
That said, why do you want to create a pool of them? That implies you'll be recreating them at draw time, which somewhat defeats the point. The only real advantage of VAOs vs just direct binds and offsets is that you don't have the runtime cost of recreating them all the time ...
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
VAOs are just meta-data - buffer bindings and offsets. VBOs are actual data buffers containing all of your vertex data. VAOs will be orders of magnitude smaller than VBOs.
That said, why do you want to create a pool of them? That implies you'll be recreating them at draw time, which somewhat defeats the point. The only real advantage of VAOs vs just direct binds and offsets is that you don't have the runtime cost of recreating them all the time ...
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
answered Mar 27 at 15:28
solidpixelsolidpixel
6,4921 gold badge12 silver badges24 bronze badges
6,4921 gold badge12 silver badges24 bronze badges
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
add a comment |
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
I have a pool of initialized VAOs. When an object doesn't need a vao anymore, it is returned to the pool but not deinitialized. If anothe object needs a vao it just takes one from the pool, changes the attribute bindings and uses it.
– Desperado17
Mar 27 at 18:35
add a comment |
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