#if 0 > 0 vec4 plane; #if 0 < 0 bool clipped = true; if ( clipped ) discard; #endif #endif In the fragment shader,i find some code ‘0>0’,what is it use for used for?

You can find that part of the code in the clipping planes shader chunk . Basically, if you’re not using clipping planes, then the renderer transforms NUM_CLIPPING_PLANES to 0 and you get the result #if 0 > 0 so the GPU can skip that segment. It’s a nice shortcut to avoid making calculations that you …

About the code 'if 0>0'

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prisoner849 March 31, 2020, 7:59am 3

Something similar was discussed here: Where does `#define XXX` get added to GLSL code?

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About the code 'if 0>0'

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