forked from bartvdbraak/blender
ee36e75b85
This was already mixed a bit, but the dot belongs there.
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/*
|
|
* Copyright 2011-2013 Blender Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef __OSL_SHADER_H__
|
|
#define __OSL_SHADER_H__
|
|
|
|
#ifdef WITH_OSL
|
|
|
|
/* OSL Shader Engine
|
|
*
|
|
* Holds all variables to execute and use OSL shaders from the kernel. These
|
|
* are initialized externally by OSLShaderManager before rendering starts.
|
|
*
|
|
* Before/after a thread starts rendering, thread_init/thread_free must be
|
|
* called, which will store any per thread OSL state in thread local storage.
|
|
* This means no thread state must be passed along in the kernel itself.
|
|
*/
|
|
|
|
#include "kernel_types.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
class Scene;
|
|
|
|
struct ShaderClosure;
|
|
struct ShaderData;
|
|
struct differential3;
|
|
struct KernelGlobals;
|
|
|
|
struct OSLGlobals;
|
|
struct OSLShadingSystem;
|
|
|
|
class OSLShader {
|
|
public:
|
|
/* init */
|
|
static void register_closures(OSLShadingSystem *ss);
|
|
|
|
/* per thread data */
|
|
static void thread_init(KernelGlobals *kg, KernelGlobals *kernel_globals, OSLGlobals *osl_globals);
|
|
static void thread_free(KernelGlobals *kg);
|
|
|
|
/* eval */
|
|
static void eval_surface(KernelGlobals *kg, ShaderData *sd, int path_flag, ShaderContext ctx);
|
|
static float3 eval_background(KernelGlobals *kg, ShaderData *sd, int path_flag, ShaderContext ctx);
|
|
static void eval_volume(KernelGlobals *kg, ShaderData *sd, int path_flag, ShaderContext ctx);
|
|
static void eval_displacement(KernelGlobals *kg, ShaderData *sd, ShaderContext ctx);
|
|
|
|
/* sample & eval */
|
|
static int bsdf_sample(const ShaderData *sd, const ShaderClosure *sc,
|
|
float randu, float randv,
|
|
float3& eval, float3& omega_in, differential3& domega_in, float& pdf);
|
|
static float3 bsdf_eval(const ShaderData *sd, const ShaderClosure *sc,
|
|
const float3& omega_in, float& pdf);
|
|
static void bsdf_blur(ShaderClosure *sc, float roughness);
|
|
|
|
/* attributes */
|
|
static int find_attribute(KernelGlobals *kg, const ShaderData *sd, uint id, AttributeElement *elem);
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif
|
|
|
|
#endif /* __OSL_SHADER_H__ */
|
|
|