added specular offset parameters in gen_phong_tex

diff --git a/src/infcubes.c b/src/infcubes.c
index 6ce74af..46462f7 100644 (file)
--- a/src/infcubes.c
+++ b/src/infcubes.c
@@ -16,7 +16,7 @@ static void destroy(void);
 static void start(long trans_time);
 static void draw(void);
 static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
 static void start(long trans_time);
 static void draw(void);
 static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,

-               int dr, int dg, int db, int sr, int sg, int sb);
+               float offx, float offy, int dr, int dg, int db, int sr, int sg, int sb);

 
 static struct screen scr = {
        "infcubes",
 
 static struct screen scr = {
        "infcubes",

@@ -49,7 +49,7 @@ static int init(void)
        }
        convimg_rgb24_rgb16(tex_inner.pixels, (unsigned char*)tex_inner.pixels, tex_inner.width, tex_inner.height);
        */
        }
        convimg_rgb24_rgb16(tex_inner.pixels, (unsigned char*)tex_inner.pixels, tex_inner.width, tex_inner.height);
        */

-       gen_phong_tex(&tex_inner, PHONG_TEX_SZ, PHONG_TEX_SZ, 5.0f, 10, 50, 92, 192, 192, 192);
+       gen_phong_tex(&tex_inner, PHONG_TEX_SZ, PHONG_TEX_SZ, 5.0f, 0, 0, 10, 50, 92, 192, 192, 192);

 
        if(!(tex_outer.pixels = img_load_pixels("data/refmap1.jpg", &tex_outer.width,
                                        &tex_outer.height, IMG_FMT_RGB24))) {
 
        if(!(tex_outer.pixels = img_load_pixels("data/refmap1.jpg", &tex_outer.width,
                                        &tex_outer.height, IMG_FMT_RGB24))) {

@@ -130,7 +130,7 @@ static void draw(void)
 }
 
 static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
 }
 
 static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,

-               int dr, int dg, int db, int sr, int sg, int sb)
+               float offx, float offy, int dr, int dg, int db, int sr, int sg, int sb)

 {
        int i, j;
        float u, v, du, dv;
 {
        int i, j;
        float u, v, du, dv;

@@ -144,9 +144,9 @@ static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
        du = 2.0f / (float)(xsz - 1);
        dv = 2.0f / (float)(ysz - 1);
 
        du = 2.0f / (float)(xsz - 1);
        dv = 2.0f / (float)(ysz - 1);
 

-       v = -1.0f;
+       v = -1.0f - offy;

        for(i=0; i<ysz; i++) {
        for(i=0; i<ysz; i++) {

-               u = -1.0f;
+               u = -1.0f - offx;

                for(j=0; j<xsz; j++) {
                        float d = sqrt(u * u + v * v);
                        float val = pow(cos(d * M_PI / 2.0f), sexp);
                for(j=0; j<xsz; j++) {
                        float d = sqrt(u * u + v * v);
                        float val = pow(cos(d * M_PI / 2.0f), sexp);