rjDrawQuadTextureEx - shaddatic/sa2b-render-fix GitHub Wiki

Prototype

void rjDrawQuadTextureEx( const NJS_QUAD_TEXTURE_EX* q )

API

void (*DrawQuadTextureEx)( const NJS_QUAD_TEXTURE_EX* q )

Ninja

void njDrawQuadTextureEx( NJS_QUAD_TEXTURE_EX* q )

Parameters

const NJS_QUAD_TEXTURE_EX* q

 Parallelogram quad texture structure

Returns

No return value.

Description

Draw a parallelogram quad texture in hardware units.

Example

This example will draw a 64x64, opaque, parallelogram quad texture in the center of the screen at half depth. It will use texture index of 0 in a defined texlist and will have a slight horizontal skew. Eg:

 0  1
X  2

#define NUM_TEX 0
#define QUAD_COLOR 0xFFFFFFFF

// set vertex list
NJS_QUAD_TEXTURE_EX q = 
{
    // top left vertex
    .x = 288.f + 1.f, // +1 to keep skew centered
    .y = 208.f,

    // depth
    .z = 0.5f,
   
    // top right vertex
    .vx1 = 64.f,
    .vy1 = 0.f,

    // bottom right vertex
    .vx2 = -2.f,       // applies skew to quad
    .vy2 = 64.f,

    // top left texture
    .u = 0.f,
    .v = 0.f,

    // top right texture
    .vu1 = 1.f,
    .vv1 = 0.f,

    // bottom right texture
    .vu1 = 0.f,
    .vv1 = 1.f,
};

// set the texture list
rjSetTexture( &texlist );

// start draw, not translucent
rjQuadTextureStart( FALSE );

// set color + texture
rjSetQuadTexture( NUM_TEX, QUAD_COLOR );

// draw quad
rjDrawQuadTextureEx( &q ); // <<<<<<<<

// ... optionally draw more quads

// end draw
rjQuadTextureEnd();

Related Functions

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