blender/intern/cycles/render/nodes.h
Lukas Toenne 5f6bd44c82 Generalized node groups for Cycles.
This allows group nodes inside other group nodes in cycles and makes the
code more generic for all possible cases, like direct group
input-to-output links and unused group sockets.

Previous code tried to connect external nodes and internal group sockets
by following links until a "real" node input/output. This quickly
becomes complicated in corner cases as described above and can lead to
unexpected behavior when the group socket is of a different type than
the internal/external sockets, but that conversion is skipped.

The new code uses the concept of "proxy nodes" similar to what the new
compositor does. Each group socket is replaced with a proxy node with a
single input and output, to which other nodes in the same tree and
internal nodes can link to. After all groups have been expanded in the
graph, these proxy nodes are removed again, adding converter nodes if
necessary.
2011-12-18 15:34:06 +00:00

383 lines
7.1 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.
*/
#ifndef __NODES_H__
#define __NODES_H__
#include "graph.h"
#include "util_string.h"
CCL_NAMESPACE_BEGIN
class ImageManager;
class Shadr;
/* Texture Mapping */
class TextureMapping {
public:
TextureMapping();
Transform compute_transform();
bool skip();
void compile(SVMCompiler& compiler, int offset_in, int offset_out);
float3 translation;
float3 rotation;
float3 scale;
enum Mapping { NONE=0, X=1, Y=2, Z=3 };
Mapping x_mapping, y_mapping, z_mapping;
enum Projection { FLAT, CUBE, TUBE, SPHERE };
Projection projection;
};
/* Nodes */
class TextureNode : public ShaderNode {
public:
TextureNode(const char *name) : ShaderNode(name) {}
TextureMapping tex_mapping;
};
class ImageTextureNode : public TextureNode {
public:
SHADER_NODE_NO_CLONE_CLASS(ImageTextureNode)
~ImageTextureNode();
ShaderNode *clone() const;
ImageManager *image_manager;
int slot;
string filename;
ustring color_space;
static ShaderEnum color_space_enum;
};
class EnvironmentTextureNode : public TextureNode {
public:
SHADER_NODE_NO_CLONE_CLASS(EnvironmentTextureNode)
~EnvironmentTextureNode();
ShaderNode *clone() const;
ImageManager *image_manager;
int slot;
string filename;
ustring color_space;
static ShaderEnum color_space_enum;
};
class SkyTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(SkyTextureNode)
float3 sun_direction;
float turbidity;
};
class OutputNode : public ShaderNode {
public:
SHADER_NODE_CLASS(OutputNode)
};
class GradientTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(GradientTextureNode)
ustring type;
static ShaderEnum type_enum;
};
class NoiseTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(NoiseTextureNode)
};
class VoronoiTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(VoronoiTextureNode)
ustring coloring;
static ShaderEnum coloring_enum;
};
class MusgraveTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(MusgraveTextureNode)
ustring type;
static ShaderEnum type_enum;
};
class WaveTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(WaveTextureNode)
ustring type;
static ShaderEnum type_enum;
};
class MagicTextureNode : public TextureNode {
public:
SHADER_NODE_CLASS(MagicTextureNode)
int depth;
};
class MappingNode : public ShaderNode {
public:
SHADER_NODE_CLASS(MappingNode)
TextureMapping tex_mapping;
};
class ConvertNode : public ShaderNode {
public:
ConvertNode(ShaderSocketType from, ShaderSocketType to);
SHADER_NODE_BASE_CLASS(ConvertNode)
ShaderSocketType from, to;
};
class ProxyNode : public ShaderNode {
public:
ProxyNode(ShaderSocketType from, ShaderSocketType to);
SHADER_NODE_BASE_CLASS(ProxyNode)
ShaderSocketType from, to;
};
class BsdfNode : public ShaderNode {
public:
SHADER_NODE_CLASS(BsdfNode)
void compile(SVMCompiler& compiler, ShaderInput *param1, ShaderInput *param2);
ClosureType closure;
};
class WardBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(WardBsdfNode)
};
class DiffuseBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(DiffuseBsdfNode)
};
class TranslucentBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(TranslucentBsdfNode)
};
class TransparentBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(TransparentBsdfNode)
};
class VelvetBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(VelvetBsdfNode)
};
class GlossyBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(GlossyBsdfNode)
ustring distribution;
static ShaderEnum distribution_enum;
};
class GlassBsdfNode : public BsdfNode {
public:
SHADER_NODE_CLASS(GlassBsdfNode)
ustring distribution;
static ShaderEnum distribution_enum;
};
class EmissionNode : public ShaderNode {
public:
SHADER_NODE_CLASS(EmissionNode)
bool total_power;
};
class BackgroundNode : public ShaderNode {
public:
SHADER_NODE_CLASS(BackgroundNode)
};
class HoldoutNode : public ShaderNode {
public:
SHADER_NODE_CLASS(HoldoutNode)
};
class VolumeNode : public ShaderNode {
public:
SHADER_NODE_CLASS(VolumeNode)
void compile(SVMCompiler& compiler, ShaderInput *param1, ShaderInput *param2);
ClosureType closure;
};
class TransparentVolumeNode : public VolumeNode {
public:
SHADER_NODE_CLASS(TransparentVolumeNode)
};
class IsotropicVolumeNode : public VolumeNode {
public:
SHADER_NODE_CLASS(IsotropicVolumeNode)
};
class GeometryNode : public ShaderNode {
public:
SHADER_NODE_CLASS(GeometryNode)
};
class TextureCoordinateNode : public ShaderNode {
public:
SHADER_NODE_CLASS(TextureCoordinateNode)
void attributes(AttributeRequestSet *attributes);
};
class LightPathNode : public ShaderNode {
public:
SHADER_NODE_CLASS(LightPathNode)
};
class ValueNode : public ShaderNode {
public:
SHADER_NODE_CLASS(ValueNode)
float value;
};
class ColorNode : public ShaderNode {
public:
SHADER_NODE_CLASS(ColorNode)
float3 value;
};
class AddClosureNode : public ShaderNode {
public:
SHADER_NODE_CLASS(AddClosureNode)
};
class MixClosureNode : public ShaderNode {
public:
SHADER_NODE_CLASS(MixClosureNode)
};
class InvertNode : public ShaderNode {
public:
SHADER_NODE_CLASS(InvertNode)
};
class MixNode : public ShaderNode {
public:
SHADER_NODE_CLASS(MixNode)
ustring type;
static ShaderEnum type_enum;
};
class CombineRGBNode : public ShaderNode {
public:
SHADER_NODE_CLASS(CombineRGBNode)
};
class GammaNode : public ShaderNode {
public:
SHADER_NODE_CLASS(GammaNode)
};
class SeparateRGBNode : public ShaderNode {
public:
SHADER_NODE_CLASS(SeparateRGBNode)
};
class HSVNode : public ShaderNode {
public:
SHADER_NODE_CLASS(HSVNode)
};
class AttributeNode : public ShaderNode {
public:
SHADER_NODE_CLASS(AttributeNode)
void attributes(AttributeRequestSet *attributes);
ustring attribute;
};
class CameraNode : public ShaderNode {
public:
SHADER_NODE_CLASS(CameraNode)
};
class FresnelNode : public ShaderNode {
public:
SHADER_NODE_CLASS(FresnelNode)
};
class LayerWeightNode : public ShaderNode {
public:
SHADER_NODE_CLASS(LayerWeightNode)
};
class MathNode : public ShaderNode {
public:
SHADER_NODE_CLASS(MathNode)
ustring type;
static ShaderEnum type_enum;
};
class NormalNode : public ShaderNode {
public:
SHADER_NODE_CLASS(NormalNode)
float3 direction;
};
class VectorMathNode : public ShaderNode {
public:
SHADER_NODE_CLASS(VectorMathNode)
ustring type;
static ShaderEnum type_enum;
};
class BumpNode : public ShaderNode {
public:
SHADER_NODE_CLASS(BumpNode)
};
CCL_NAMESPACE_END
#endif /* __NODES_H__ */