Revision be42e989
Added by Leszek Koltunski over 3 years ago
| src/main/java/org/distorted/library/effect/VertexEffectShear.java | ||
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// For explanation (esp. about the way we modify vectors n and i) see MatrixEffectShear. |
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static String code() |
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{
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return |
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"float sx = vUniforms[effect].x; \n" |
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+ "float sy = vUniforms[effect].y; \n" |
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+ "float sz = vUniforms[effect].z; \n" |
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+ "vec3 center = vUniforms[effect+1].yzw; \n" |
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"float sx = vUniforms[effect].x; \n" |
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+ "float sy = vUniforms[effect].y; \n" |
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+ "float sz = vUniforms[effect].z; \n" |
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+ "vec3 center = vUniforms[effect+1].yzw; \n" |
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+ "float tmp = sx*sy + 1.0; \n" |
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+ "v -= center; \n" |
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+ "v -= center; \n"
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+ "float new_vx = (1.0+sx*sy)*v.x + sx*v.y; \n"
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+ "float new_vy = sy*v.x + v.y; \n" |
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+ "float new_vz = sz*v.y + v.z; \n" |
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+ "float new_vx = tmp*v.x + sx*v.y; \n"
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+ "float new_vy = sy*v.x + v.y; \n"
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+ "float new_vz = sz*v.y + v.z; \n"
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+ "v.x = new_vx; \n" |
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+ "v.y = new_vy; \n" |
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+ "v.z = new_vz; \n" |
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+ "v.x = new_vx; \n"
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+ "v.y = new_vy; \n"
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+ "v.z = new_vz; \n"
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+ "v += center; \n" |
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+ "v += center; \n"
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+ "float new_nx = (1.0+sx*sy)*n.x + sx*n.y; \n" |
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+ "float new_ny = sy*n.x + n.y; \n" |
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+ "float new_nz = sz*n.y + n.z; \n" |
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+ "float new_nx = n.x - sy*n.y + sy*sz*n.z; \n" |
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+ "float new_ny =-sx*n.x + tmp*(n.y - sz*n.z); \n" |
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+ "n.x = new_nx; \n" |
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+ "n.y = new_ny; \n" |
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+ "n.x = new_nx; \n" |
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+ "n.y = new_ny; \n" |
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+ "n.z = new_nz; \n" |
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+ "#ifdef PREAPPLY \n" |
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+ "#ifdef PREAPPLY \n" |
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+ "float new_ix = inf.x - sy*inf.y + sy*sz*inf.z; \n" |
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+ "float new_iy =-sx*inf.x + tmp*(inf.y - sz*inf.z);\n" |
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+ "inf.x = new_ix; \n" |
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+ "inf.y = new_iy; \n" |
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+ "float new_ix = (1.0+sx*sy)*inf.x + sx*inf.y; \n" |
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+ "float new_iy = sy*inf.x + inf.y; \n" |
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+ "float new_iz = sz*inf.y + inf.z; \n" |
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+ "inf.x = new_ix; \n" |
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+ "inf.y = new_iy; \n" |
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+ "inf.z = new_iz; \n" |
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+ "#endif \n"; |
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+ "#endif \n"; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
Also available in: Unified diff
Fix modifications of normals in VertexEffectScale and VertexEffectShear.