linkArte Ascci - Hardware

1link> precision mediump float;

2link> 

3link> uniform sampler2D image;

4link> 

5link> uniform sampler2D symbol1;

6link> uniform sampler2D symbol2;

7link> uniform sampler2D symbol3;

8link> uniform sampler2D symbol4;

9link> uniform sampler2D symbol5;

10link> uniform sampler2D symbol6;

11link> uniform sampler2D symbol7;

12link> uniform sampler2D symbol8;

13link> uniform sampler2D symbol9;

14link> uniform sampler2D symbol10;

15link> uniform sampler2D symbol11;

16link> uniform sampler2D symbol12;

17link> uniform sampler2D symbol13;

18link> uniform sampler2D symbol14;

19link> 

20link> uniform bool debug;

21link> 

22link> uniform float resolution;

23link> 

24link> varying vec4 vVertexColor;

25link> 

26link> varying vec2 vTexCoord;

27link> 

28link> void main() {

29link> 

30link>   vec2 symbolCoord = vTexCoord * resolution;

31link> 

32link>   vec2 imageCoord = floor(symbolCoord);

33link>   symbolCoord = symbolCoord - imageCoord;

34link>   vec4 col = texture2D(image, vTexCoord) * vVertexColor;

35link>   float grayLuma = dot(col.rgb, vec3(1, 1, 1));

36link> 

37link>   if(grayLuma > 2.6)

38link>     gl_FragColor = texture2D(symbol14, symbolCoord) * vVertexColor;

39link>   else if(grayLuma > 2.4)

40link>     gl_FragColor = texture2D(symbol13, symbolCoord) * vVertexColor;

41link>   else if(grayLuma > 2.2)

42link>     gl_FragColor = texture2D(symbol12, symbolCoord) * vVertexColor;

43link>   else if(grayLuma > 2.0)

44link>     gl_FragColor = texture2D(symbol11, symbolCoord) * vVertexColor;

45link>   else if(grayLuma > 1.8)

46link>     gl_FragColor = texture2D(symbol10, symbolCoord) * vVertexColor;

47link>   else if(grayLuma > 1.6)

48link>     gl_FragColor = texture2D(symbol9, symbolCoord) * vVertexColor;

49link>   else if(grayLuma > 1.4)

50link>     gl_FragColor = texture2D(symbol8, symbolCoord) * vVertexColor;

51link>   else if(grayLuma > 1.2)

52link>     gl_FragColor = texture2D(symbol7, symbolCoord) * vVertexColor;

53link>   else if(grayLuma > 1.0)

54link>     gl_FragColor = texture2D(symbol6, symbolCoord) * vVertexColor;

55link>   else if(grayLuma > 0.8)

56link>     gl_FragColor = texture2D(symbol5, symbolCoord) * vVertexColor;

57link>   else if(grayLuma > 0.6)

58link>     gl_FragColor = texture2D(symbol4, symbolCoord) * vVertexColor;

59link>   else if(grayLuma > 0.4)

60link>     gl_FragColor = texture2D(symbol3, symbolCoord) * vVertexColor;

61link>   else if(grayLuma > 0.2)

62link>     gl_FragColor = texture2D(symbol2, symbolCoord) * vVertexColor;

63link>   else

64link>     gl_FragColor = texture2D(symbol1, symbolCoord) * vVertexColor;

65link> 

66link> }