How to use VAR
Post: #7
The first argument is the size in bytes to map to VAR in AGP-space, or flush (so the card can begin DMA), respectively. Read the spec again: http://oss.sgi.com/projects/ogl-sample/r..._range.txt
In my example:
What you put in Vertex depends entirely on what you want to draw. In my case, 2D colored textured quads:
Of course, you need to set the pointer for each element array as usual. Edited my initial post's setup section to make that clear.
In my example:
Code:
#define VAR_size 2048
#define VAR_bufs 2What you put in Vertex depends entirely on what you want to draw. In my case, 2D colored textured quads:
Code:
typedef struct GLCoord2 {
GLfloat x;
GLfloat y;
} GLCoord2;
typedef struct GLColor4 {
GLfloat r;
GLfloat g;
GLfloat b;
GLfloat a;
} GLColor4;
typedef struct Vertex {
GLColor4 color;
GLCoord2 texture;
GLCoord2 vertex;
} Vertex;Of course, you need to set the pointer for each element array as usual. Edited my initial post's setup section to make that clear.
| Messages In This Thread |
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How to use VAR - Josh - Nov 28, 2003, 10:53 AM
How to use VAR - arekkusu - Nov 28, 2003, 09:07 PM
How to use VAR - Josh - Nov 29, 2003, 01:29 AM
How to use VAR - arekkusu - Nov 29, 2003, 01:32 AM
How to use VAR - Josh - Nov 29, 2003, 01:24 PM
How to use VAR - Josh - Nov 29, 2003, 01:56 PM
How to use VAR - arekkusu - Nov 29, 2003 10:46 PM
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