This subclass of Material provides some convienence functions so that it is easier to write a lighting surface shader. More...
Inherits DD::Image::Material.
Public Member Functions | |
| IllumShader (Node *) | |
| int | minimum_inputs () const |
| int | maximum_inputs () const |
| Op * | default_input (int input) const |
| const char * | input_label (int input, char *buffer) const |
| void | knobs (Knob_Callback f) |
| bool | shade_GL (ViewerContext *, GeoInfo &) |
| void | unset_texturemap (ViewerContext *) |
| void | vertex_shader (VertexContext &) |
| void | fragment_shader (const VertexContext &, Pixel &out) |
Protected Member Functions | |
| virtual void | surface_shader (Vector3 &P, Vector3 &V, Vector3 &N, const VertexContext &, Pixel &surface)=0 |
| void | _validate (bool) |
| void | _request (int x, int y, int r, int t, ChannelMask, int count) |
Protected Attributes | |
| Channel | channel [4] |
| Layer to apply shading to. | |
| ChannelSet | surface_channels |
| ChannelMask built from channel[]. | |
This subclass of Material provides some convienence functions so that it is easier to write a lighting surface shader.
Base class of illumination shaders that adds convenience functions and a map input for typical lighting shaders.
| IllumShader::IllumShader | ( | Node * | node | ) |
Default the shader channels to RGB.
References channel.
| Op * IllumShader::default_input | ( | int | input | ) | const [virtual] |
For input 0 it uses the default Material input0. Input 1 is allowed to be NULL so we can test whether it's connected.
Reimplemented from DD::Image::Iop.
| const char * IllumShader::input_label | ( | int | input, |
| char * | buffer | ||
| ) | const [virtual] |
Input 0 has no label, input 1 is 'map'.
Reimplemented from DD::Image::Op.
| void IllumShader::knobs | ( | Knob_Callback | f | ) | [virtual] |
Set up a channel knob for the shader.
Reimplemented from DD::Image::Material.
References channel, and DD::Image::Input_Channel_knob().
| bool IllumShader::shade_GL | ( | ViewerContext * | ctx, |
| GeoInfo & | geo | ||
| ) | [virtual] |
| void IllumShader::unset_texturemap | ( | ViewerContext * | ctx | ) | [virtual] |
Pass call to input0.
Reimplemented from DD::Image::Material.
References DD::Image::Iop::input0(), and DD::Image::Iop::unset_texturemap().
| void IllumShader::vertex_shader | ( | VertexContext & | vtx | ) | [virtual] |
Pass call to input0.
Reimplemented from DD::Image::Material.
References DD::Image::Iop::input0(), DD::Image::Scene::lights, DD::Image::Iop::vertex_shader(), and DD::Image::VertexContext::vP.
| virtual void DD::Image::IllumShader::surface_shader | ( | Vector3 & | P, |
| Vector3 & | V, | ||
| Vector3 & | N, | ||
| const VertexContext & | , | ||
| Pixel & | surface | ||
| ) | [protected, pure virtual] |
The light shader call. Pure virtual, must be implemented by subclasses.
| void IllumShader::_validate | ( | bool | for_real | ) | [protected, virtual] |
Add surface channels to info.
Reimplemented from DD::Image::Material.
References channel, DD::Image::IopInfoOwner::info_, DD::Image::Iop::input(), DD::Image::Iop::input1(), surface_channels, and DD::Image::Op::validate().
| void IllumShader::_request | ( | int | x, |
| int | y, | ||
| int | r, | ||
| int | t, | ||
| ChannelMask | channels, | ||
| int | count | ||
| ) | [protected, virtual] |
Add surface channels to request.
Reimplemented from DD::Image::Material.
References DD::Image::IopInfoOwner::info(), DD::Image::Iop::input(), DD::Image::Iop::input1(), DD::Image::Box::r(), DD::Image::Iop::request(), surface_channels, DD::Image::Box::t(), DD::Image::Box::x(), and DD::Image::Box::y().