CODEWITHSUNDEEP
opengltexturesmultitexturing
itun
itun

Reputation: 3521

OpenGL: Turn off multiple texture units

How to turn off multiple texture units because they influence to other render parts. I activate my them:

        glActiveTexture(GL_TEXTURE0 + index);
        glBindTexture(GL_TEXTURE_2D,
               ((MaterialSampler2D)specular).texture.getTOB());
        shader.setTexture2(index);

Is there something like glDeactivateTexture?

Upvotes: 5

Views: 9634

Answers (2)

ltjax
ltjax

Reputation: 16007

glActiveTexture does not activate texture-units. It merely selects which texture-unit you're currently modifying (yes, OpenGL's object state managing is horrible). You activate textures with glEnable(<texture-target>) and glDisable(<texture-target>). In your case, the target would be GL_TEXTURE_2D.

So to answer your question: Select the texture-unit i by using glActiveTexture(GL_TEXTURE0+i) and then disable it with glDisable(GL_TEXTURE_2D).

Note that all this is redundant with shaders - you can just not access the values there.

Upvotes: 11

Bart
Bart

Reputation: 20028

You mean something like glDisable? http://www.opengl.org/sdk/docs/man/xhtml/glEnable.xml

Upvotes: 1

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