diff options
Diffstat (limited to 'intern/cycles/kernel/kernel_object.h')
-rw-r--r-- | intern/cycles/kernel/kernel_object.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/intern/cycles/kernel/kernel_object.h b/intern/cycles/kernel/kernel_object.h new file mode 100644 index 00000000000..b4c42d3bacc --- /dev/null +++ b/intern/cycles/kernel/kernel_object.h @@ -0,0 +1,68 @@ +/* + * 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 + +enum ObjectTransform { + OBJECT_TRANSFORM = 0, + OBJECT_INVERSE_TRANSFORM = 4, + OBJECT_NORMAL_TRANSFORM = 8, + OBJECT_PROPERTIES = 12 +}; + +__device_inline Transform object_fetch_transform(KernelGlobals *kg, int object, enum ObjectTransform type) +{ + Transform tfm; + + int offset = object*OBJECT_SIZE + (int)type; + + tfm.x = kernel_tex_fetch(__objects, offset + 0); + tfm.y = kernel_tex_fetch(__objects, offset + 1); + tfm.z = kernel_tex_fetch(__objects, offset + 2); + tfm.w = kernel_tex_fetch(__objects, offset + 3); + + return tfm; +} + +__device_inline void object_position_transform(KernelGlobals *kg, int object, float3 *P) +{ + Transform tfm = object_fetch_transform(kg, object, OBJECT_TRANSFORM); + *P = transform(&tfm, *P); +} + +__device_inline void object_normal_transform(KernelGlobals *kg, int object, float3 *N) +{ + Transform tfm = object_fetch_transform(kg, object, OBJECT_NORMAL_TRANSFORM); + *N = normalize(transform_direction(&tfm, *N)); +} + +__device_inline void object_dir_transform(KernelGlobals *kg, int object, float3 *D) +{ + Transform tfm = object_fetch_transform(kg, object, OBJECT_TRANSFORM); + *D = transform_direction(&tfm, *D); +} + +__device_inline float object_surface_area(KernelGlobals *kg, int object) +{ + int offset = object*OBJECT_SIZE + OBJECT_PROPERTIES; + float4 f = kernel_tex_fetch(__objects, offset); + return f.x; +} + +CCL_NAMESPACE_END + |