Revision faa3ff56
Added by Leszek Koltunski almost 7 years ago
| src/main/java/org/distorted/library/effect/VertexEffectDistort.java | ||
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import org.distorted.library.type.Static4D; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Distort the Mesh by applying a 3D vector of force. |
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*/ |
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public class VertexEffectDistort extends VertexEffect |
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{
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private Data3D mVector, mCenter; |
| ... | ... | |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Distort a (possibly changing in time) part of the Object by a (possibly changing in time) vector of force. |
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* |
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* @param vector vector of force the Center of the Effect is currently being dragged with. |
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* @param center 3-dimensional Data that, at any given time, returns the Center of the Effect. |
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* @param region Region that masks the Effect. |
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*/ |
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public VertexEffectDistort(Data3D vector, Data3D center, Data4D region) |
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{
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super(EffectName.DISTORT); |
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mVector = vector; |
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mCenter = center; |
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mRegion = (region==null ? new Static4D(0,0,Float.MAX_VALUE, Float.MAX_VALUE) : region); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Distort the whole Object by a (possibly changing in time) vector of force. |
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* Only for use by the library itself. |
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* |
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* @param vector vector of force the Center of the Effect is currently being dragged with. |
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* @param center 3-dimensional Data that, at any given time, returns the Center of the Effect. |
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* @y.exclude |
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*/ |
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public VertexEffectDistort(Data3D vector, Data3D center) |
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{
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super(EffectName.DISTORT); |
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mVector = vector; |
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mCenter = center; |
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mRegion = new Static4D(0,0,Float.MAX_VALUE, Float.MAX_VALUE); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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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+5,currentDuration,step); |
| ... | ... | |
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return ret; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// PUBLIC API |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// Point (Px,Py) gets moved by vector (Wx,Wy,Wz) where Wx/Wy = Vx/Vy i.e. Wx=aVx and Wy=aVy where |
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// a=Py/Sy (N --> when (Px,Py) is above (Sx,Sy)) or a=Px/Sx (W) or a=(w-Px)/(w-Sx) (E) or a=(h-Py)/(h-Sy) (S) |
| ... | ... | |
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// |
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// Thus we actually want to compute N(v.x,v.y) = a*(-(dx/|PS|)*f'(|PX|), -(dy/|PS|)*f'(|PX|), 1) and keep adding |
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// the first two components. (a is the horizontal part) |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Have to call this before the shaders get compiled (i.e before Distorted.onCreate()) for the Effect to work. |
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*/ |
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public static void enable() |
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{
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addEffect(EffectName.DISTORT, |
| ... | ... | |
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+ "n.xy += n.z*b*ps;" |
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); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Distort a (possibly changing in time) part of the Object by a (possibly changing in time) vector of force. |
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* |
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* @param vector vector of force the Center of the Effect is currently being dragged with. |
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* @param center 3-dimensional Data that, at any given time, returns the Center of the Effect. |
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* @param region Region that masks the Effect. |
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*/ |
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public VertexEffectDistort(Data3D vector, Data3D center, Data4D region) |
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{
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super(EffectName.DISTORT); |
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mVector = vector; |
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mCenter = center; |
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mRegion = (region==null ? new Static4D(0,0,Float.MAX_VALUE, Float.MAX_VALUE) : region); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Distort the whole Object by a (possibly changing in time) vector of force. |
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* |
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* @param vector vector of force the Center of the Effect is currently being dragged with. |
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* @param center 3-dimensional Data that, at any given time, returns the Center of the Effect. |
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*/ |
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public VertexEffectDistort(Data3D vector, Data3D center) |
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{
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super(EffectName.DISTORT); |
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mVector = vector; |
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mCenter = center; |
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mRegion = new Static4D(0,0,Float.MAX_VALUE, Float.MAX_VALUE); |
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} |
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} |
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