diff options
Diffstat (limited to 'intern/cycles/kernel/svm/svm_clouds.h')
-rw-r--r-- | intern/cycles/kernel/svm/svm_clouds.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_clouds.h b/intern/cycles/kernel/svm/svm_clouds.h new file mode 100644 index 00000000000..e51af684ab9 --- /dev/null +++ b/intern/cycles/kernel/svm/svm_clouds.h @@ -0,0 +1,55 @@ +/* + * 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 + +/* Clouds */ + +__device void svm_clouds(NodeNoiseBasis basis, int hard, int depth, float size, float3 p, float *fac, float3 *color) +{ + p /= size; + + *fac = noise_turbulence(p, basis, depth, hard); + *color = make_float3(*fac, + noise_turbulence(make_float3(p.y, p.x, p.z), basis, depth, hard), + noise_turbulence(make_float3(p.y, p.z, p.x), basis, depth, hard)); +} + +__device void svm_node_tex_clouds(ShaderData *sd, float *stack, uint4 node) +{ + uint basis, hard, depth; + uint size_offset, co_offset, fac_offset, color_offset; + + decode_node_uchar4(node.y, &basis, &hard, &depth, NULL); + decode_node_uchar4(node.z, &size_offset, &co_offset, &fac_offset, &color_offset); + + float3 co = stack_load_float3(stack, co_offset); + float size = stack_load_float_default(stack, size_offset, node.w); + size = nonzerof(size, 1e-5f); + + float3 color; + float f; + + svm_clouds((NodeNoiseBasis)basis, hard, depth, size, co, &f, &color); + + if(stack_valid(fac_offset)) stack_store_float(stack, fac_offset, f); + if(stack_valid(color_offset)) stack_store_float3(stack, color_offset, color); +} + +CCL_NAMESPACE_END + |