Why use it
It provides direct, allocation-conscious access to PSX polygon preparation, clipping and submission. No exception-based error path is implied by the signature.
EPOK RUNTIME
epok::screen_area
Function · 1 overload
Function
Screen area sign in the GPU's coordinate system; zero for degenerate triangles.
Declaration
Declaration
inline int32_t screen_area(const ProjectedVertex& a, const ProjectedVertex& b, const ProjectedVertex& c)Screen area sign in the GPU's coordinate system; zero for degenerate triangles.
| Parameter | Type | Meaning |
|---|---|---|
a | const ProjectedVertex & | Value supplied for a. Keep referenced or pointed-to data valid for the complete call. |
b | const ProjectedVertex & | Value supplied for b. Keep referenced or pointed-to data valid for the complete call. |
c | const ProjectedVertex & | Value supplied for c. Keep referenced or pointed-to data valid for the complete call. |
Returns: int32_t. Check the value before continuing when it represents success, availability or a resource handle.
Example
C++ example
#include "polygon.hpp"
// Assume these named values have been initialized with valid data:
// const ProjectedVertex & a
// const ProjectedVertex & b
// const ProjectedVertex & c
auto result = epok::screen_area(a, b, c);Trade-offs and warnings
Pointer/reference arguments are borrowed unless the source contract says otherwise; keep them valid for the complete operation and never assume null is accepted.
Declared in runtime/polygon.hpp:66
Related members
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