forked from bartvdbraak/blender
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*
|
|
* Copyright 2011, Blender Foundation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
/* Magic */
|
|
|
|
__device_noinline float3 svm_magic(float3 p, int n, float distortion)
|
|
{
|
|
float x = sinf((p.x + p.y + p.z)*5.0f);
|
|
float y = cosf((-p.x + p.y - p.z)*5.0f);
|
|
float z = -cosf((-p.x - p.y + p.z)*5.0f);
|
|
|
|
if(n > 0) {
|
|
x *= distortion;
|
|
y *= distortion;
|
|
z *= distortion;
|
|
y = -cosf(x-y+z);
|
|
y *= distortion;
|
|
|
|
if(n > 1) {
|
|
x = cosf(x-y-z);
|
|
x *= distortion;
|
|
|
|
if(n > 2) {
|
|
z = sinf(-x-y-z);
|
|
z *= distortion;
|
|
|
|
if(n > 3) {
|
|
x = -cosf(-x+y-z);
|
|
x *= distortion;
|
|
|
|
if(n > 4) {
|
|
y = -sinf(-x+y+z);
|
|
y *= distortion;
|
|
|
|
if(n > 5) {
|
|
y = -cosf(-x+y+z);
|
|
y *= distortion;
|
|
|
|
if(n > 6) {
|
|
x = cosf(x+y+z);
|
|
x *= distortion;
|
|
|
|
if(n > 7) {
|
|
z = sinf(x+y-z);
|
|
z *= distortion;
|
|
|
|
if(n > 8) {
|
|
x = -cosf(-x-y+z);
|
|
x *= distortion;
|
|
|
|
if(n > 9) {
|
|
y = -sinf(x-y+z);
|
|
y *= distortion;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(distortion != 0.0f) {
|
|
distortion *= 2.0f;
|
|
x /= distortion;
|
|
y /= distortion;
|
|
z /= distortion;
|
|
}
|
|
|
|
return make_float3(0.5f - x, 0.5f - y, 0.5f - z);
|
|
}
|
|
|
|
__device void svm_node_tex_magic(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int *offset)
|
|
{
|
|
uint depth;
|
|
uint scale_offset, distortion_offset, co_offset, fac_offset, color_offset;
|
|
|
|
decode_node_uchar4(node.y, &depth, &color_offset, &fac_offset, NULL);
|
|
decode_node_uchar4(node.z, &co_offset, &scale_offset, &distortion_offset, NULL);
|
|
|
|
uint4 node2 = read_node(kg, offset);
|
|
float3 co = stack_load_float3(stack, co_offset);
|
|
float scale = stack_load_float_default(stack, scale_offset, node2.x);
|
|
float distortion = stack_load_float_default(stack, distortion_offset, node2.y);
|
|
|
|
float3 color = svm_magic(co*scale, depth, distortion);
|
|
|
|
if(stack_valid(fac_offset))
|
|
stack_store_float(stack, fac_offset, average(color));
|
|
if(stack_valid(color_offset))
|
|
stack_store_float3(stack, color_offset, color);
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|