Texture format (Luminance + Alpha)?

[Guppy]

I've been usingLeadwerks::Texture::RGB and Leadwerks::Texture::RGBATo pass to

Leadwerks::Texture::Create(_width,_height,LEformat)

But I also need to create textures with one color channel and one Llumiance channel + alpha (GL_LUMINANCE8_ALPHA8) - I've been using Leadwerks::Texture::Intensity16 for this which gets me the correct buffer size but when I bind the texture it just shows as black. So what should I use instead?

[Josh]

OpenGL4 does not have Luminance textures:

https://www.opengl.org/sdk/docs/man4/html/glTexImage2D.xhtml

 

GL_RG8 is the only thing that uses two channels, but there is no Leadwerks Texture::RedGreen format.

 

Is there a reason Texture::RGBA or RGB won't work?

[Guppy]

MyGUI uses it for colored text - suppose I'll have to find a way around that.

[Guppy]

facepalm moment - turns out I had stubbed the "isFormatSupported" function in the rendermanager with return true;

 

so err yeah just ignore this tread, I'll chalk it up to sleep deprivation

[Josh]

Is there a reason you actually need the luminance channel? I just use alpha textures for font rendering.

[Guppy]

Is there a reason you actually need the luminance channel? I just use alpha textures for font rendering.

I'm thinking it was to save memory - works just fine now I've told it that format isn't supported