Revision faa3ff56
Added by Leszek Koltunski almost 7 years ago
| src/main/java/org/distorted/library/effect/VertexEffectSwirl.java | ||
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import org.distorted.library.type.Static4D; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* 'Swirl' part of the Mesh, i.e rotate part of it around a point. |
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*/ |
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public class VertexEffectSwirl extends VertexEffect |
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{
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private Data1D mSwirl; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Rotate part of the Object around the Center of the Effect by a certain angle. |
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* |
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* @param swirl The angle of Swirl (in degrees). Positive values swirl clockwise. |
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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 VertexEffectSwirl(Data1D swirl, Data3D center, Data4D region) |
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{
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super(EffectName.SWIRL); |
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mSwirl = swirl; |
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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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* Rotate the whole Object around the Center of the Effect by a certain angle. |
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* Only for use by the library itself. |
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* |
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* @param swirl The angle of Swirl (in degrees). Positive values swirl clockwise. |
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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 VertexEffectSwirl(Data1D swirl, Data3D center) |
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{
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super(EffectName.SWIRL); |
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mSwirl = swirl; |
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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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// Let d be the degree of the current vertex V with respect to center of the effect S and Region vRegion. |
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// This effect rotates the current vertex V by vInterpolated.x radians clockwise around the circle dilated |
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// by (1-d) around the center of the effect S. |
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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.SWIRL, |
| ... | ... | |
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+ "v.xy += min(d1_circle,d1_bitmap)*(PS - PS2/(1.0-d2)); \n" // if d2=1 (i.e P=center) we should have P unchanged. How to do it? |
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); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Rotate part of the Mesh around the Center of the Effect by a certain angle. |
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* |
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* @param swirl The angle of Swirl (in degrees). Positive values swirl clockwise. |
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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 VertexEffectSwirl(Data1D swirl, Data3D center, Data4D region) |
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{
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super(EffectName.SWIRL); |
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mSwirl = swirl; |
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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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* Rotate the whole Mesh around the Center of the Effect by a certain angle. |
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* |
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* @param swirl The angle of Swirl (in degrees). Positive values swirl clockwise. |
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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 VertexEffectSwirl(Data1D swirl, Data3D center) |
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{
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super(EffectName.SWIRL); |
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mSwirl = swirl; |
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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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