Revision f046b159
Added by Leszek Koltunski almost 4 years ago
| src/main/java/org/distorted/library/effect/VertexEffectPinch.java | ||
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*/ |
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public class VertexEffectPinch extends VertexEffect |
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{
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private static final EffectName NAME = EffectName.PINCH; |
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private Data3D mPinch; |
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private Data3D mCenter; |
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private Data4D mRegion; |
| ... | ... | |
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{
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mCenter.get(uniforms,index+CENTER_OFFSET,currentDuration,step); |
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mRegion.get(uniforms,index+REGION_OFFSET,currentDuration,step); |
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boolean ret = mPinch.get(uniforms,index,currentDuration,step); |
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boolean ret = mPinch.get(uniforms,index+VALUES_OFFSET,currentDuration,step);
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uniforms[index+1] = (float)(Math.PI*uniforms[index+1]/180); |
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uniforms[index+2] = (float)(Math.PI*uniforms[index+2]/180); |
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uniforms[index+VALUES_OFFSET+1] = (float)(Math.PI*uniforms[index+1]/180);
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uniforms[index+VALUES_OFFSET+2] = (float)(Math.PI*uniforms[index+2]/180);
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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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// Pull P=(v.x,v.y) along a vector from the center of region sphere to a point on it defined by |
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// the (latitude,longitude) pair of angles with P' = P + (1-h)*dist(line to P) |
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// when h>1 we are pushing points away from S: P' = P + (1/h-1)*dist(line to P) |
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// (where 'line' above passes through the center point and goes along the vector) |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Have to call this before the shaders get compiled (i.e before DistortedLibrary.onCreate()) for the Effect to work. |
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*/ |
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public static void enable() |
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static String code() |
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{
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addEffect(EffectName.PINCH,
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return
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"vec3 ps = vUniforms[effect+1].yzw -v; \n" |
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+ "float h = vUniforms[effect].x; \n" |
| ... | ... | |
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+ "n_ps = sign_ps*n_ps/(dot_ps-(sign_ps-1.0)); \n" // uff! now n_ps is the parallel to ps component of n, even if ps==0 |
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+ "float move = deg*(h-1.0)/(h/B+1.0/A); \n" // move(0)=-A*deg, move(1)=0, move(inf)=B*deg |
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+ "n += move * abs(dot(n,dir)) * n_ps; \n" |
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+ "n = normalize(n);" |
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); |
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+ "n = normalize(n);"; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// PUBLIC API |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Have to call this before the shaders get compiled (i.e before DistortedLibrary.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( NAME, code() ); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
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*/ |
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public VertexEffectPinch(Data3D pinch, Data3D center, Data4D region) |
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{
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super(EffectName.PINCH);
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super(NAME);
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mPinch = pinch; |
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mCenter = center; |
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mRegion = (region==null ? MAX_REGION : region); |
| ... | ... | |
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*/ |
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public VertexEffectPinch(Data3D pinch, Data3D center) |
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{
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super(EffectName.PINCH);
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super(NAME);
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mPinch = pinch; |
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mCenter = center; |
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mRegion = MAX_REGION; |
Also available in: Unified diff
First attempt at the MeshBase.apply(VertexEffect) API.