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[retroray] / src / gaw / gawswtnl.c

diff --git a/src/gaw/gawswtnl.c b/src/gaw/gawswtnl.c
index 5e55621..4930e09 100644 (file)
--- a/src/gaw/gawswtnl.c
+++ b/src/gaw/gawswtnl.c
@@ -316,6 +316,11 @@ void gaw_alpha_func(int func, float ref)
        /* TODO */
 }
 
+void gaw_zoffset(float offs)
+{
+       st.zoffs = offs;
+}
+
 #define CLAMP(x, a, b)         ((x) < (a) ? (a) : ((x) > (b) ? (b) : (x)))
 
 void gaw_clear_color(float r, float g, float b, float a)
@@ -535,6 +540,7 @@ void gaw_draw_indexed(int prim, const unsigned int *idxarr, int nidx)
                        float oow = 1.0f / v[i].w;
                        v[i].x *= oow;
                        v[i].y *= oow;
+                       v[i].z += st.zoffs;
                        if(st.opt & (1 << GAW_DEPTH_TEST)) {
                                v[i].z *= oow;
                        }