diff options
Diffstat (limited to 'intern/cycles/kernel/svm/bsdf_transparent.h')
| -rw-r--r-- | intern/cycles/kernel/svm/bsdf_transparent.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/bsdf_transparent.h b/intern/cycles/kernel/svm/bsdf_transparent.h new file mode 100644 index 00000000000..4425c4bf104 --- /dev/null +++ b/intern/cycles/kernel/svm/bsdf_transparent.h @@ -0,0 +1,79 @@ +/* + * Adapted from Open Shading Language with this license: + * + * Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al. + * All Rights Reserved. + * + * Modifications Copyright 2011, Blender Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Sony Pictures Imageworks nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef __BSDF_TRANSPARENT_H__ +#define __BSDF_TRANSPARENT_H__ + +CCL_NAMESPACE_BEGIN + +__device void bsdf_transparent_setup(ShaderData *sd, ShaderClosure *sc) +{ + sc->type = CLOSURE_BSDF_TRANSPARENT_ID; + sd->flag |= SD_BSDF; +} + +__device void bsdf_transparent_blur(ShaderClosure *sc, float roughness) +{ +} + +__device float3 bsdf_transparent_eval_reflect(const ShaderData *sd, const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf) +{ + return make_float3(0.0f, 0.0f, 0.0f); +} + +__device float3 bsdf_transparent_eval_transmit(const ShaderData *sd, const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf) +{ + return make_float3(0.0f, 0.0f, 0.0f); +} + +__device float bsdf_transparent_albedo(const ShaderData *sd, const ShaderClosure *sc, const float3 I) +{ + return 1.0f; +} + +__device int bsdf_transparent_sample(const ShaderData *sd, const ShaderClosure *sc, float randu, float randv, float3 *eval, float3 *omega_in, float3 *domega_in_dx, float3 *domega_in_dy, float *pdf) +{ + // only one direction is possible + *omega_in = -sd->I; +#ifdef __RAY_DIFFERENTIALS__ + *domega_in_dx = -sd->dI.dx; + *domega_in_dy = -sd->dI.dy; +#endif + *pdf = 1; + *eval = make_float3(1, 1, 1); + return LABEL_TRANSMIT|LABEL_TRANSPARENT; +} + +CCL_NAMESPACE_END + +#endif /* __BSDF_TRANSPARENT_H__ */ + |