Change size of a sprite

[mikem]

Do you know of a way or a tool to change the size of sprites (.sp2)?
The size is defined in the sp2 file. So it doesn't help if I change the TGA/PCX file.

With hgspr2_v0.2b I can only change the path and the origin.


I use model_spawn to display sprites as a flare sfx:


Maybe model_spawn can achieve that somehow.
For this effect, it would be best if the sprite gets smaller as the player gets closer and the sprite fades out when it's behind a brush.

[knightmare]

I'm not familiar with sprite editors, but you can certainly edit one using a hex editor.

The sp2 file format is pretty simple:

typedef struct
{
int width, height;
int origin_x, origin_y; // raster coordinates inside pic
char name[MD2_MAX_SKINNAME]; // name of pcx file
} dspr2frame_t;

typedef struct
{
int ident;
int version;
int numframes;
dspr2frame_t frames[1]; // variable sized
} dspr2_t;

Look for the start of the image name (assuming the spirte has only one frame, as it will be non-animated), then jump back 16 bytes. The next 2 dwords will be the width and height in little endian hexadecimal. You can edit them using the Windows calculator to convert to hex and then swapping to little endian in a text editor.

As far as sizing the flare sprite according to player distance, that can't be done currently. It would probably require an enhanced Q3-style shader system in the renderer.

[mikem]

Thanks, I'll try that after my vacation.

[mikem]

Thanks, it worked. With or without halos as sprites?