Revision f046b159
Added by Leszek Koltunski almost 4 years ago
| src/main/java/org/distorted/library/effect/VertexEffectQuaternion.java | ||
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*/ |
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public class VertexEffectQuaternion extends VertexEffect |
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{
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private static final EffectName NAME = EffectName.VERTEX_QUATERNION; |
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private Data4D mQuaternion; |
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private Data3D mCenter; |
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public boolean compute(float[] uniforms, int index, long currentDuration, long step ) |
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{
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mCenter.get(uniforms,index+CENTER_OFFSET,currentDuration,step); |
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return mQuaternion.get(uniforms,index,currentDuration,step); |
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return mQuaternion.get(uniforms,index+VALUES_OFFSET,currentDuration,step); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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static String code() |
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{
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return |
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"float qx = vUniforms[effect].x; \n" |
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+ "float qy = vUniforms[effect].y; \n" |
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+ "float qz = vUniforms[effect].z; \n" |
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+ "float qw = vUniforms[effect].w; \n" |
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+ "vec3 center = vUniforms[effect+1].yzw; \n" |
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+ "v -= center; \n" |
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+ "float tx = qx - v.z*qy + v.y*qz + v.x*qw; \n" |
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+ "float ty = qy + v.z*qx + v.y*qw - v.x*qz; \n" |
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+ "float tz = qz + v.z*qw - v.y*qx + v.x*qy; \n" |
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+ "float tw = qw - v.z*qz - v.y*qy - v.x*qx; \n" |
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+ "v.x = qw*tx + qz*ty - qy*tz - qx*tw; \n" |
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+ "v.y = qw*ty - qz*tx - qy*tw + qx*tz; \n" |
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+ "v.z = qw*tz - qz*tw + qy*tx - qx*ty; \n" |
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+ "v += center; \n" |
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+ "float nx = - n.z*qy + n.y*qz + n.x*qw; \n" |
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+ "float ny = + n.z*qx + n.y*qw - n.x*qz; \n" |
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+ "float nz = + n.z*qw - n.y*qx + n.x*qy; \n" |
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+ "float nw = - n.z*qz - n.y*qy - n.x*qx; \n" |
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+ "n.x = qw*nx + qz*ny - qy*nz - qx*nw; \n" |
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+ "n.y = qw*ny - qz*nx - qy*nw + qx*nz; \n" |
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+ "n.z = qw*nz - qz*nw + qy*nx - qx*ny; \n"; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
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*/ |
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public static void enable() |
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{
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addEffect( EffectName.VERTEX_QUATERNION, |
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"float qx = vUniforms[effect].x; \n" |
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+ "float qy = vUniforms[effect].y; \n" |
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+ "float qz = vUniforms[effect].z; \n" |
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+ "float qw = vUniforms[effect].w; \n" |
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+ "vec3 center = vUniforms[effect+1].yzw; \n" |
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+ "v -= center; \n" |
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+ "float tx = qx - v.z*qy + v.y*qz + v.x*qw; \n" |
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+ "float ty = qy + v.z*qx + v.y*qw - v.x*qz; \n" |
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+ "float tz = qz + v.z*qw - v.y*qx + v.x*qy; \n" |
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+ "float tw = qw - v.z*qz - v.y*qy - v.x*qx; \n" |
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+ "v.x = qw*tx + qz*ty - qy*tz - qx*tw; \n" |
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+ "v.y = qw*ty - qz*tx - qy*tw + qx*tz; \n" |
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+ "v.z = qw*tz - qz*tw + qy*tx - qx*ty; \n" |
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+ "v += center; \n" |
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+ "float nx = - n.z*qy + n.y*qz + n.x*qw; \n" |
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+ "float ny = + n.z*qx + n.y*qw - n.x*qz; \n" |
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+ "float nz = + n.z*qw - n.y*qx + n.x*qy; \n" |
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+ "float nw = - n.z*qz - n.y*qy - n.x*qx; \n" |
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+ "n.x = qw*nx + qz*ny - qy*nz - qx*nw; \n" |
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+ "n.y = qw*ny - qz*nx - qy*nw + qx*nz; \n" |
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+ "n.z = qw*nz - qz*nw + qy*nx - qx*ny; \n" |
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); |
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addEffect( NAME, code() ); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
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*/ |
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public VertexEffectQuaternion(Data4D quaternion, Data3D center ) |
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{
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super(EffectName.VERTEX_QUATERNION);
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super(NAME);
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mQuaternion = quaternion; |
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mCenter = center; |
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} |
Also available in: Unified diff
First attempt at the MeshBase.apply(VertexEffect) API.