diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_GlareStreaksOperation.cpp')
| -rw-r--r-- | source/blender/compositor/operations/COM_GlareStreaksOperation.cpp | 126 |
1 files changed, 67 insertions, 59 deletions
diff --git a/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp b/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp index 18be89af75b..cf60a1378b4 100644 --- a/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp +++ b/source/blender/compositor/operations/COM_GlareStreaksOperation.cpp @@ -19,74 +19,82 @@ #include "COM_GlareStreaksOperation.h" #include "BLI_math.h" -void GlareStreaksOperation::generateGlare(float *data, MemoryBuffer *inputTile, NodeGlare *settings) +void GlareStreaksOperation::generateGlare(float *data, + MemoryBuffer *inputTile, + NodeGlare *settings) { - int x, y, n; - unsigned int nump = 0; - float c1[4], c2[4], c3[4], c4[4]; - float a, ang = DEG2RADF(360.0f) / (float)settings->streaks; + int x, y, n; + unsigned int nump = 0; + float c1[4], c2[4], c3[4], c4[4]; + float a, ang = DEG2RADF(360.0f) / (float)settings->streaks; - int size = inputTile->getWidth() * inputTile->getHeight(); - int size4 = size * 4; + int size = inputTile->getWidth() * inputTile->getHeight(); + int size4 = size * 4; - bool breaked = false; + bool breaked = false; - MemoryBuffer *tsrc = inputTile->duplicate(); - MemoryBuffer *tdst = new MemoryBuffer(COM_DT_COLOR, inputTile->getRect()); - tdst->clear(); - memset(data, 0, size4 * sizeof(float)); + MemoryBuffer *tsrc = inputTile->duplicate(); + MemoryBuffer *tdst = new MemoryBuffer(COM_DT_COLOR, inputTile->getRect()); + tdst->clear(); + memset(data, 0, size4 * sizeof(float)); - for (a = 0.0f; a < DEG2RADF(360.0f) && (!breaked); a += ang) { - const float an = a + settings->angle_ofs; - const float vx = cos((double)an), vy = sin((double)an); - for (n = 0; n < settings->iter && (!breaked); ++n) { - const float p4 = pow(4.0, (double)n); - const float vxp = vx * p4, vyp = vy * p4; - const float wt = pow((double)settings->fade, (double)p4); - const float cmo = 1.0f - (float)pow((double)settings->colmod, (double)n + 1); // colormodulation amount relative to current pass - float *tdstcol = tdst->getBuffer(); - for (y = 0; y < tsrc->getHeight() && (!breaked); ++y) { - for (x = 0; x < tsrc->getWidth(); ++x, tdstcol += 4) { - // first pass no offset, always same for every pass, exact copy, - // otherwise results in uneven brightness, only need once - if (n == 0) tsrc->read(c1, x, y); else c1[0] = c1[1] = c1[2] = 0; - tsrc->readBilinear(c2, x + vxp, y + vyp); - tsrc->readBilinear(c3, x + vxp * 2.0f, y + vyp * 2.0f); - tsrc->readBilinear(c4, x + vxp * 3.0f, y + vyp * 3.0f); - // modulate color to look vaguely similar to a color spectrum - c2[1] *= cmo; - c2[2] *= cmo; + for (a = 0.0f; a < DEG2RADF(360.0f) && (!breaked); a += ang) { + const float an = a + settings->angle_ofs; + const float vx = cos((double)an), vy = sin((double)an); + for (n = 0; n < settings->iter && (!breaked); ++n) { + const float p4 = pow(4.0, (double)n); + const float vxp = vx * p4, vyp = vy * p4; + const float wt = pow((double)settings->fade, (double)p4); + const float cmo = 1.0f - + (float)pow((double)settings->colmod, + (double)n + + 1); // colormodulation amount relative to current pass + float *tdstcol = tdst->getBuffer(); + for (y = 0; y < tsrc->getHeight() && (!breaked); ++y) { + for (x = 0; x < tsrc->getWidth(); ++x, tdstcol += 4) { + // first pass no offset, always same for every pass, exact copy, + // otherwise results in uneven brightness, only need once + if (n == 0) + tsrc->read(c1, x, y); + else + c1[0] = c1[1] = c1[2] = 0; + tsrc->readBilinear(c2, x + vxp, y + vyp); + tsrc->readBilinear(c3, x + vxp * 2.0f, y + vyp * 2.0f); + tsrc->readBilinear(c4, x + vxp * 3.0f, y + vyp * 3.0f); + // modulate color to look vaguely similar to a color spectrum + c2[1] *= cmo; + c2[2] *= cmo; - c3[0] *= cmo; - c3[1] *= cmo; + c3[0] *= cmo; + c3[1] *= cmo; - c4[0] *= cmo; - c4[2] *= cmo; + c4[0] *= cmo; + c4[2] *= cmo; - tdstcol[0] = 0.5f * (tdstcol[0] + c1[0] + wt * (c2[0] + wt * (c3[0] + wt * c4[0]))); - tdstcol[1] = 0.5f * (tdstcol[1] + c1[1] + wt * (c2[1] + wt * (c3[1] + wt * c4[1]))); - tdstcol[2] = 0.5f * (tdstcol[2] + c1[2] + wt * (c2[2] + wt * (c3[2] + wt * c4[2]))); - tdstcol[3] = 1.0f; - } - if (isBreaked()) { - breaked = true; - } - } - memcpy(tsrc->getBuffer(), tdst->getBuffer(), sizeof(float) * size4); - } + tdstcol[0] = 0.5f * (tdstcol[0] + c1[0] + wt * (c2[0] + wt * (c3[0] + wt * c4[0]))); + tdstcol[1] = 0.5f * (tdstcol[1] + c1[1] + wt * (c2[1] + wt * (c3[1] + wt * c4[1]))); + tdstcol[2] = 0.5f * (tdstcol[2] + c1[2] + wt * (c2[2] + wt * (c3[2] + wt * c4[2]))); + tdstcol[3] = 1.0f; + } + if (isBreaked()) { + breaked = true; + } + } + memcpy(tsrc->getBuffer(), tdst->getBuffer(), sizeof(float) * size4); + } - float *sourcebuffer = tsrc->getBuffer(); - float factor = 1.0f / (float)(6 - settings->iter); - for (int i = 0; i < size4; i += 4) { - madd_v3_v3fl(&data[i], &sourcebuffer[i], factor); - data[i + 3] = 1.0f; - } + float *sourcebuffer = tsrc->getBuffer(); + float factor = 1.0f / (float)(6 - settings->iter); + for (int i = 0; i < size4; i += 4) { + madd_v3_v3fl(&data[i], &sourcebuffer[i], factor); + data[i + 3] = 1.0f; + } - tdst->clear(); - memcpy(tsrc->getBuffer(), inputTile->getBuffer(), sizeof(float) * size4); - nump++; - } + tdst->clear(); + memcpy(tsrc->getBuffer(), inputTile->getBuffer(), sizeof(float) * size4); + nump++; + } - delete tsrc; - delete tdst; + delete tsrc; + delete tdst; } |