Bastien Montagne
9dd194716b
Please never, ever use same DNA var for two different things. Even worse if they do not have same type and ranges! This is only ensuring issues (as described in report, but also if animating both RNA props using same DNA var... yuck). And we were not even saving any byte in DNA, could reuse some padding there to store the two new needed vars (yes, two, since we cannot re-use existing one if we want to keep backward *and* forward compatibility).
97 lines
3.3 KiB
C++
97 lines
3.3 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor:
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* Jeroen Bakker
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* Monique Dewanchand
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*/
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#include "COM_GlareStreaksOperation.h"
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#include "BLI_math.h"
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void GlareStreaksOperation::generateGlare(float *data, MemoryBuffer *inputTile, NodeGlare *settings)
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{
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int x, y, n;
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unsigned int nump = 0;
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float c1[4], c2[4], c3[4], c4[4];
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float a, ang = DEG2RADF(360.0f) / (float)settings->streaks;
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int size = inputTile->getWidth() * inputTile->getHeight();
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int size4 = size * 4;
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bool breaked = false;
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MemoryBuffer *tsrc = inputTile->duplicate();
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MemoryBuffer *tdst = new MemoryBuffer(COM_DT_COLOR, inputTile->getRect());
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tdst->clear();
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memset(data, 0, size4 * sizeof(float));
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for (a = 0.0f; a < DEG2RADF(360.0f) && (!breaked); a += ang) {
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const float an = a + settings->angle_ofs;
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const float vx = cos((double)an), vy = sin((double)an);
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for (n = 0; n < settings->iter && (!breaked); ++n) {
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const float p4 = pow(4.0, (double)n);
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const float vxp = vx * p4, vyp = vy * p4;
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const float wt = pow((double)settings->fade, (double)p4);
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const float cmo = 1.0f - (float)pow((double)settings->colmod, (double)n + 1); // colormodulation amount relative to current pass
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float *tdstcol = tdst->getBuffer();
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for (y = 0; y < tsrc->getHeight() && (!breaked); ++y) {
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for (x = 0; x < tsrc->getWidth(); ++x, tdstcol += 4) {
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// first pass no offset, always same for every pass, exact copy,
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// otherwise results in uneven brightness, only need once
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if (n == 0) tsrc->read(c1, x, y); else c1[0] = c1[1] = c1[2] = 0;
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tsrc->readBilinear(c2, x + vxp, y + vyp);
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tsrc->readBilinear(c3, x + vxp * 2.0f, y + vyp * 2.0f);
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tsrc->readBilinear(c4, x + vxp * 3.0f, y + vyp * 3.0f);
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// modulate color to look vaguely similar to a color spectrum
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c2[1] *= cmo;
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c2[2] *= cmo;
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c3[0] *= cmo;
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c3[1] *= cmo;
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c4[0] *= cmo;
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c4[2] *= cmo;
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tdstcol[0] = 0.5f * (tdstcol[0] + c1[0] + wt * (c2[0] + wt * (c3[0] + wt * c4[0])));
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tdstcol[1] = 0.5f * (tdstcol[1] + c1[1] + wt * (c2[1] + wt * (c3[1] + wt * c4[1])));
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tdstcol[2] = 0.5f * (tdstcol[2] + c1[2] + wt * (c2[2] + wt * (c3[2] + wt * c4[2])));
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tdstcol[3] = 1.0f;
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}
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if (isBreaked()) {
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breaked = true;
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}
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}
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memcpy(tsrc->getBuffer(), tdst->getBuffer(), sizeof(float) * size4);
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}
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float *sourcebuffer = tsrc->getBuffer();
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float factor = 1.0f / (float)(6 - settings->iter);
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for (int i = 0; i < size4; i += 4) {
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madd_v3_v3fl(&data[i], &sourcebuffer[i], factor);
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data[i + 3] = 1.0f;
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}
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tdst->clear();
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memcpy(tsrc->getBuffer(), inputTile->getBuffer(), sizeof(float) * size4);
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nump++;
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}
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delete tsrc;
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delete tdst;
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}
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