Function ovr_sys::opengl::ovr_CreateTextureSwapChainGL

pub unsafe extern "C" fn ovr_CreateTextureSwapChainGL(
    session: ovrSession,
    desc: *const ovrTextureSwapChainDesc,
    out_TextureSwapChain: *mut ovrTextureSwapChain
) -> ovrResult

Creates a TextureSwapChain suitable for use with OpenGL.

in session Specifies an ovrSession previously returned by ovr_Create.

in desc Specifies the requested texture properties. See notes for more info about texture format.

out out_TextureSwapChain Returns the created ovrTextureSwapChain, which will be valid upon a successful return value, else it will be NULL. This texture swap chain must be eventually destroyed via ovr_DestroyTextureSwapChain before destroying the session with ovr_Destroy.

Returns an ovrResult indicating success or failure. In the case of failure, use ovr_GetLastErrorInfo to get more information.

Note: The format provided should be thought of as the format the distortion compositor will use when reading the contents of the texture. To that end, it is highly recommended that the application requests texture swap chain formats that are in sRGB-space (e.g. OVR_FORMAT_R8G8B8A8_UNORM_SRGB) as the distortion compositor does sRGB-correct rendering. Furthermore, the app should then make sure glEnable(GL_FRAMEBUFFER_SRGB); is called before rendering into these textures. Even though it is not recommended, if the application would like to treat the texture as a linear format and do linear-to-gamma conversion in GLSL, then the application can avoid calling glEnable(GL_FRAMEBUFFER_SRGB);, but should still pass in an sRGB variant for the format. Failure to do so will cause the distortion compositor to apply incorrect gamma conversions leading to gamma-curve artifacts.

see ovr_GetTextureSwapChainLength, ovr_GetTextureSwapChainCurrentIndex, ovr_GetTextureSwapChainDesc, ovr_GetTextureSwapChainBufferGL, ovr_DestroyTextureSwapChain