| 45 |
45 |
}
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| 46 |
46 |
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| 47 |
47 |
///////////////////////////////////////////////////////////////////////////////////////////////////
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48 |
// For explanation (esp. about the way we modify vectors n and i) see MatrixEffectShear.
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| 48 |
49 |
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| 49 |
50 |
static String code()
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| 50 |
51 |
{
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| 51 |
52 |
return
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| 52 |
53 |
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| 53 |
|
"float sx = vUniforms[effect].x; \n"
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| 54 |
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+ "float sy = vUniforms[effect].y; \n"
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| 55 |
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+ "float sz = vUniforms[effect].z; \n"
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| 56 |
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+ "vec3 center = vUniforms[effect+1].yzw; \n"
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54 |
"float sx = vUniforms[effect].x; \n"
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55 |
+ "float sy = vUniforms[effect].y; \n"
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56 |
+ "float sz = vUniforms[effect].z; \n"
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57 |
+ "vec3 center = vUniforms[effect+1].yzw; \n"
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58 |
+ "float tmp = sx*sy + 1.0; \n"
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| 57 |
59 |
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| 58 |
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+ "v -= center; \n"
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60 |
+ "v -= center; \n"
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| 59 |
61 |
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| 60 |
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+ "float new_vx = (1.0+sx*sy)*v.x + sx*v.y; \n"
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| 61 |
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+ "float new_vy = sy*v.x + v.y; \n"
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| 62 |
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+ "float new_vz = sz*v.y + v.z; \n"
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62 |
+ "float new_vx = tmp*v.x + sx*v.y; \n"
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63 |
+ "float new_vy = sy*v.x + v.y; \n"
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64 |
+ "float new_vz = sz*v.y + v.z; \n"
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| 63 |
65 |
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| 64 |
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+ "v.x = new_vx; \n"
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| 65 |
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+ "v.y = new_vy; \n"
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| 66 |
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+ "v.z = new_vz; \n"
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66 |
+ "v.x = new_vx; \n"
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67 |
+ "v.y = new_vy; \n"
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|
68 |
+ "v.z = new_vz; \n"
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| 67 |
69 |
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| 68 |
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+ "v += center; \n"
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|
70 |
+ "v += center; \n"
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| 69 |
71 |
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| 70 |
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+ "float new_nx = (1.0+sx*sy)*n.x + sx*n.y; \n"
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| 71 |
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+ "float new_ny = sy*n.x + n.y; \n"
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| 72 |
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+ "float new_nz = sz*n.y + n.z; \n"
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72 |
+ "float new_nx = n.x - sy*n.y + sy*sz*n.z; \n"
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73 |
+ "float new_ny =-sx*n.x + tmp*(n.y - sz*n.z); \n"
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74 |
+ "n.x = new_nx; \n"
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75 |
+ "n.y = new_ny; \n"
|
| 73 |
76 |
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| 74 |
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+ "n.x = new_nx; \n"
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| 75 |
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+ "n.y = new_ny; \n"
|
| 76 |
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+ "n.z = new_nz; \n"
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77 |
+ "#ifdef PREAPPLY \n"
|
| 77 |
78 |
|
| 78 |
|
+ "#ifdef PREAPPLY \n"
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|
79 |
+ "float new_ix = inf.x - sy*inf.y + sy*sz*inf.z; \n"
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80 |
+ "float new_iy =-sx*inf.x + tmp*(inf.y - sz*inf.z);\n"
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|
81 |
+ "inf.x = new_ix; \n"
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|
82 |
+ "inf.y = new_iy; \n"
|
| 79 |
83 |
|
| 80 |
|
+ "float new_ix = (1.0+sx*sy)*inf.x + sx*inf.y; \n"
|
| 81 |
|
+ "float new_iy = sy*inf.x + inf.y; \n"
|
| 82 |
|
+ "float new_iz = sz*inf.y + inf.z; \n"
|
| 83 |
|
|
| 84 |
|
+ "inf.x = new_ix; \n"
|
| 85 |
|
+ "inf.y = new_iy; \n"
|
| 86 |
|
+ "inf.z = new_iz; \n"
|
| 87 |
|
|
| 88 |
|
+ "#endif \n";
|
|
84 |
+ "#endif \n";
|
| 89 |
85 |
}
|
| 90 |
86 |
|
| 91 |
87 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
Fix modifications of normals in VertexEffectScale and VertexEffectShear.