Panda3D
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The ShaderGenerator is a device that effectively replaces the classic fixed function pipeline with a 'next-gen' fixed function pipeline. The next-gen fixed function pipeline supports features like normal mapping, gloss mapping, cartoon lighting, and so forth. It works by automatically generating a shader from a given RenderState. More...
Public Member Functions | |
__init__ (GraphicsStateGuardianBase gsg, GraphicsOutputBase host) | |
Create a ShaderGenerator. This has no state, except possibly to cache certain results. The parameter that must be passed is the GSG to which the shader generator belongs. More... | |
const ShaderAttrib | synthesizeShader (const RenderState rs) |
This is the routine that implements the next-gen fixed function pipeline by synthesizing a shader. It also takes care of setting up any buffers needed to produce the requested effects. More... | |
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TypeHandle | getType () |
Derived classes should override this function to return get_class_type(). More... | |
int | getTypeIndex () |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. This is equivalent to get_type().get_index(). More... | |
bool | isExactType (TypeHandle handle) |
Returns true if the current object is the indicated type exactly. More... | |
bool | isOfType (TypeHandle handle) |
Returns true if the current object is or derives from the indicated type. More... | |
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int | getRefCount () |
Returns the current reference count. More... | |
ref () | |
Explicitly increments the reference count. User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. Returns true if ok, false otherwise. More... | |
bool | testRefCountNonzero () |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. Returns true if ok, false otherwise. More... | |
bool | unref () |
Explicitly decrements the reference count. Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete(). More... | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
The ShaderGenerator is a device that effectively replaces the classic fixed function pipeline with a 'next-gen' fixed function pipeline. The next-gen fixed function pipeline supports features like normal mapping, gloss mapping, cartoon lighting, and so forth. It works by automatically generating a shader from a given RenderState.
Currently, there is one ShaderGenerator object per GraphicsStateGuardian. It is our intent that in time, people will write classes that derive from ShaderGenerator but which yield slightly different results.
The ShaderGenerator owes its existence to the 'Bamboo Team' at Carnegie Mellon's Entertainment Technology Center. This is a group of students who, as a semester project, decided that next-gen graphics should be accessible to everyone, even if they don't know shader programming. The group consisted of:
Aaron Lo, Programmer Heegun Lee, Programmer Erin Fernandez, Artist/Tester Joe Grubb, Artist/Tester Ivan Ortega, Technical Artist/Tester
Thanks to them!
__init__ | ( | GraphicsStateGuardianBase | gsg, |
GraphicsOutputBase | host | ||
) |
Create a ShaderGenerator. This has no state, except possibly to cache certain results. The parameter that must be passed is the GSG to which the shader generator belongs.
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static |
const ShaderAttrib synthesizeShader | ( | const RenderState | rs | ) |
This is the routine that implements the next-gen fixed function pipeline by synthesizing a shader. It also takes care of setting up any buffers needed to produce the requested effects.
Currently supports:
Not yet supported:
Potential optimizations