Is it possible to render to a specific mipmap level of a render target in webgl?
Why is level in framebufferTexture2D always set to zero?
The mipmap level of the texture image to attach. Always set to 0.
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1 Answers
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No, according to the spec section 4.4.3
level specifies the mipmap level of the texture image to be attached to the framebuffer and must be 0. Otherwise, INVALID_VALUE is generated.
That's a limitation of OpenGL ES 2.0 which WebGL is based on
