CODEWITHSUNDEEP
iosimage-processingopengl-esglslopengl-es-2.0
samuraisam
samuraisam

Reputation: 1947

GLSL for full resolution image manipulation?

I am currently using GLSL shaders to render effects to live video on iOS devices. The video resolution is 640x480. When you capture a picture, the image can come in at any resolution up to 5mp. I am wondering if there is any way to apply the same GLSL shader to, for example, a 5mp texture.

Upvotes: 2

Views: 677

Answers (2)

Tara
Tara

Reputation: 1796

What you could do is process the image in chunks.
Like only process a 512x512 pixel part of the image at a time.
That way you wouldn't have to care about the final image resolution (it could even be 100mp big if you have enough memory).
And as Christian Rau already pointed out: GLSL doesn't care about the size of the texture/render target.

Upvotes: 0

Christian Rau
Christian Rau

Reputation: 45968

It just depends if your graphics driver/device supports that large textures and render targets. If yes, it's absolutely no problem, GLSL doesn't care about the texture or render target size.

Upvotes: 2

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