Revision 93dca704
Added by Leszek Koltunski almost 8 years ago
| src/main/java/org/distorted/library/EffectQueuePostprocess.java | ||
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| 171 | 171 |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private int computeKernel(int radius, float height)
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private int computeGaussianKernel(int radius)
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{
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if( radius>=MAX_BLUR ) radius = MAX_BLUR-1; |
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// Box Blur size 'radius' |
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/* |
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for(int i=0; i<=radius; i++) |
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{
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mWeights[i] = 1.0f / (2.0f*radius+1.0f); |
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mOffsets[i] = i*height; |
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} |
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*/ |
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// Gaussian Blur size 'radius' |
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float P = (float)NUM_GAUSSIAN / (radius>3 ? radius:3); |
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float x = 0.0f; |
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mWeights[0] = GAUSSIAN[0]; |
| ... | ... | |
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mWeights[i] = (1-z)*GAUSSIAN[j] + z*GAUSSIAN[j+1]; |
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sum += 2*mWeights[i]; |
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mOffsets[i] = i*height; |
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} |
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for(int i=0; i<=radius; i++) |
| ... | ... | |
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for(int i=0; i<numloops; i++) |
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{
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mOffsets[i+1] = mWeights[2*i+1]*mOffsets[2*i+1] + mWeights[2*i+2]*mOffsets[2*i+2];
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mOffsets[i+1] = mWeights[2*i+1]*(2*i+1) + mWeights[2*i+2]*(2*i+2);
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mWeights[i+1] = mWeights[2*i+1] + mWeights[2*i+2]; |
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mOffsets[i+1] /= mWeights[i+1]; |
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} |
| ... | ... | |
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{
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mBlurProgram.useProgram(); |
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int radius = computeKernel( (int)mUniforms[0], 1/h ); |
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int radius = computeGaussianKernel( (int)mUniforms[0] ); |
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float adjust = 1/h; |
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for(int i=0; i<=radius; i++) mOffsets[i] *= adjust; |
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GLES30.glUniform1fv( mWeightsH, radius+1, mWeights,0); |
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GLES30.glUniform1i( mRadiusH, radius); |
| ... | ... | |
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df.setAsOutput(); |
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GLES30.glViewport(0, 0, df.mWidth, df.mHeight); |
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float adjust = h/w;
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adjust = h/w; |
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for(int i=0; i<=radius; i++) mOffsets[i] *= adjust; |
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// vertical blur |
Also available in: Unified diff
Minor progress with Gaussian. Still need to cache the Weights and Offests tables.