the beginnings of texture fog support (to cure the vertex artifacts and simplify...

[xonotic/darkplaces.git] / fractalnoise.c

diff --git a/fractalnoise.c b/fractalnoise.c
index 06d00db0eedbc805291b94771b13178d17bbcc42..eabe7ead9c45097e392b4925d80528261a2724bd 100644 (file)
--- a/fractalnoise.c
+++ b/fractalnoise.c
@@ -9,16 +9,22 @@ void fractalnoise(qbyte *noise, int size, int startgrid)
 
        for (sizepower = 0;(1 << sizepower) < size;sizepower++);
        if (size != (1 << sizepower))
-               Sys_Error("fractalnoise: size must be power of 2\n");
+       {
+               Con_Printf("fractalnoise: size must be power of 2\n");
+               return;
+       }
 
        for (gridpower = 0;(1 << gridpower) < startgrid;gridpower++);
        if (startgrid != (1 << gridpower))
-               Sys_Error("fractalnoise: grid must be power of 2\n");
+       {
+               Con_Printf("fractalnoise: grid must be power of 2\n");
+               return;
+       }
 
        startgrid = bound(0, startgrid, size);
 
        amplitude = 0xFFFF; // this gets halved before use
-       noisebuf = Mem_Alloc(tempmempool, size*size*sizeof(int));
+       noisebuf = (int *)Mem_Alloc(tempmempool, size*size*sizeof(int));
        memset(noisebuf, 0, size*size*sizeof(int));
 
        for (g2 = startgrid;g2;g2 >>= 1)
@@ -72,11 +78,17 @@ void fractalnoisequick(qbyte *noise, int size, int startgrid)
 
        for (sizepower = 0;(1 << sizepower) < size;sizepower++);
        if (size != (1 << sizepower))
-               Sys_Error("fractalnoise: size must be power of 2\n");
+       {
+               Con_Printf("fractalnoise: size must be power of 2\n");
+               return;
+       }
 
        for (gridpower = 0;(1 << gridpower) < startgrid;gridpower++);
        if (startgrid != (1 << gridpower))
-               Sys_Error("fractalnoise: grid must be power of 2\n");
+       {
+               Con_Printf("fractalnoise: grid must be power of 2\n");
+               return;
+       }
 
        startgrid = bound(0, startgrid, size);