_src_shader_shader_model.cc File Reference

Modify a 3D model for rendering by shaders. More...

#include "base/module.hh"
#include "base/stack.hh"
#include "gfx/module.hh"
#include "gfx/osg.hh"
#include "shader/module.hh"
#include "shader/conf.hh"
#include "shader/shader_model.hh"
#include "shader/shader_funcs.hh"
#include "shader/shader_name.hh"

Classes
class	shader::ShaderVisitor
	ShaderVisitor (private implementation of ShaderModel). More...
Namespaces
namespace	shader
	shader module.
Defines
#define	SHADER_SHADER_MODEL_CC   1

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Detailed Description

Modify a 3D model for rendering by shaders.

LastChangedDate:

2010-02-03 19:48:51 -0500 (Wed, 03 Feb 2010)

Author:

Jim E. Brooks http://www.palomino3d.org

Remarks:

A visitor is run to attach shader uniforms on appropriate osg::Drawable nodes to tell the shaders how to draw them properly. This step is necessary for legacy 3D models that weren't originally designed for shaders. Loosely based on ShaderGen (OSG 2.9) by Maciej Krol.

ShaderModel::ModifyModelForShaders() is the interface. ShaderVisitor is the private implementation.

Optimization faux-pas: This visitor traversal does seem to set uniforms redundantly, but the CULL/DRAW TRAVERSAL will follow a different path than this one.

GLSL does not have bitwise operators (so individual uniform bools).

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Define Documentation

#define SHADER_SHADER_MODEL_CC   1