third_party/gles_book_examples/Chapter_13/ProceduralTextures/checker.fs - Issue 543002: Renamed gles_book_examples to gles2_book to make it shorter and more correct....

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Issue 543002: Renamed gles_book_examples to gles2_book to make it shorter and more correct.... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/

Patch Set: Created 10 years, 11 months ago

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1 #ifdef GL_ES

2 precision highp float;

3 #endif

4

5 uniform int frequency;

6 uniform vec4 color0;

7 uniform vec4 color1;

8

9 varying vec2 v_st;

10

11 void

12 main()

13 {

14 float s, t, delta;

15

16 s = mod(floor(v_st.x * float(frequency * 2)), 2.0);

17 t = mod(floor(v_st.y * float(frequency * 2)), 2.0);

18 delta = abs(s - t);

19

20 gl_FragColor = mix(color1, color0, delta);

21 }

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