shaders/sway.glsl

   1
   2         "uniform mat4 uPv;"
   3    "uniform mat4x3 uMdl;"
   4    "uniform float uTime;"
   5    "uniform float uSwayAmt;"
   6    ""
   7    "out vec4 aColour;"
   8    "out vec2 aUv;"
   9    "out vec3 aNorm;"
  10    "out vec3 aCo;"
  11    ""
  12    "vec3 compute_sway( vec3 pos )"
  13    "{"
  14       "vec4 sines = vec4( sin(uTime + pos.x)*1.0,"
  15                          "sin(uTime*1.2 + pos.z*2.0)*1.1,"
  16                          "sin(uTime*2.33)*0.5,"
  17                          "sin(uTime*0.6 + pos.x*0.3)*1.3 );"
  18
  19       "vec3 offset = vec3( sines.x+sines.y*sines.w, 0.0, sines.x+sines.z );"
  20       "return pos + offset*a_colour.r*uSwayAmt;"
  21    "}"
  22         ""
  23         "void main()"
  24         "{"
  25       "vec3 swaypos = compute_sway( a_co );"
  26                 "gl_Position = uPv * vec4(uMdl * vec4(swaypos,1.0), 1.0 );"
  27       "aColour = a_colour;"
  28       "aUv = a_uv;"
  29       "aNorm = normalize(mat3(uMdl) * a_norm);"
  30       "aCo = a_co;"
  31         "}",
  32    /* Fragment */
  33         "out vec4 FragColor;"
  34         ""
  35    "uniform int uMode;"
  36    "uniform sampler2D uTexMain;"
  37    "uniform sampler2D uTexGradients;"
  38    ""
  39    /*Include*/ SHADER_VALUE_NOISE_3D
  40    ""
  41    "in vec4 aColour;"
  42    "in vec2 aUv;"
  43    "in vec3 aNorm;"
  44    "in vec3 aCo;"
  45    ""
  46         "void main()"
  47         "{"
  48       "vec4 colour = vec4(1.0,0.0,0.5,1.0);"
  49       "vec4 diffuse = texture( uTexMain, aUv );"
  50
  51       "if( uMode == 1 )"
  52       "{"
  53          "colour = vec4(aNorm * 0.5 + 0.5, 1.0);"
  54       "}"
  55       "if( uMode == 2 )"
  56       "{"
  57          "colour = aColour;"
  58       "}"
  59       "if( uMode == 3 )"
  60       "{"
  61          "float light = dot(aNorm, vec3(0.2,0.8,0.1));"
  62          "vec3 grid3 = fract(aCo);"
  63
  64          "colour = vec4(vec3(light)*(1.0-grid3*0.3),1.0);"
  65       "}"
  66       "if( uMode == 4 )"
  67       "{"
  68          "colour = vec4( aUv, 0.0, 1.0 );"
  69       "}"
  70       "if( uMode == 5 )"
  71       "{"
  72          "if( diffuse.a < 0.45 ) discard;"
  73          "colour = diffuse;"
  74       "}"
  75       "if( uMode == 6 )"
  76       "{"
  77          "float r1 = fractalNoise(aCo);"
  78          "colour = vec4( vec3(r1), 1.0 );"
  79       "}"
  80       "if( uMode == 7 )"
  81       "{"
  82          "if( diffuse.a < 0.2 ) discard;"
  83          "float lighting = 1.0 - aColour.g*0.8;"
  84
  85          "float light1 = max(0.0,dot(-vec3(0.5,-0.8,0.25), aNorm));"
  86          "float light2 = max(0.0,dot(-vec3(-0.8,0.5,-0.25), aNorm));"
  87          "vec3 lt = vec3(0.2,0.2,0.2 ) + "
  88                    "vec3(1.0,1.0,0.9)*light1 + "
  89                    "vec3(0.1,0.3,0.4 )*light2;"
  90
  91
  92          "colour = vec4(vec3(pow(lighting,1.6)*(diffuse.r*0.7+0.5)),1.0);"
  93          "colour = vec4(colour.rgb*lt,1.0);"
  94
  95          "vec2 gradUV = vec2(lighting*1.9,aColour.b*0.8);"
  96          "vec4 gradient_sample = texture( uTexGradients, gradUV );"
  97          "colour = colour*gradient_sample;"
  98       "}"
  99       "if( uMode == 8 )"
 100       "{"
 101          "if( diffuse.a < 0.45 ) discard;"
 102          "float light = 1.0 - aColour.g;"
 103          "light = pow(light,1.6)*(diffuse.r*0.7+0.5);"
 104          "float r1 = fractalNoise(aCo*0.01);"
 105
 106          "vec2 gradUV = vec2(light*1.9,r1+aColour.b);"
 107          "vec4 gradient_sample = texture( uTexGradients, gradUV );"
 108          "colour = gradient_sample*light;"
 109       "}"
 110
 111                 "FragColor = colour;"
 112         "}"