Rendering to OpenGL texture?

[JPGygax68]

Hi!

Is it possible to render to a texture? And can that texture then be shared with OpenGL?

(I'm working with Windows 10)

Thanks for any insights

[cwfitzgerald]

Hello!

It is possible to render to a texture - in 0.3 you can specify your output to be a texture, on trunk you just import any image you like to render to.

As for sharing with opengl, wgpu currently doesn't support opengl on windows so you'd need to use cpu readback, which has obvious speed issues. There is also potential of doing vk/gl interop, but that's considerably more annoying.

[JPGygax68]

Thank you! I'm going to read up on Vulkan-OpenGL interop. Not being familiar with Rend3 for now, can you tell me how difficult (or how easy) it is to render to a texture?