Circle rendering tweaks

robotman2412 · Jan 30, 2024 · ea6b81c · ea6b81c
1 parent d8b8d65
commit ea6b81c
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Showing 6 changed files with 246 additions and 241 deletions.
diff --git a/precalc.py b/precalc.py
@@ -11,7 +11,7 @@ def precalcCircle(fd_c, fd_h, resolution, id):
     fd_c.write("// Circle: " + str(resolution) + " segments\n")
     fd_c.write("const pax_vec2f pax_precalc_" + id + "[" + str(resolution + 1) + "] = {\n")
     for i in range(resolution + 1):
-        angle = i * delta
+        angle = i * delta + delta / 2
         fd_c.write("\t{" + str(math.cos(angle)) + ", " + str(math.sin(angle)) + "},\n")
     fd_c.write("};\n\n")
 
@@ -21,8 +21,8 @@ def precalcCircle(fd_c, fd_h, resolution, id):
     fd_c.write("// Circle UVs: " + str(resolution) + " segments\n")
     fd_c.write("const pax_trif pax_precalc_uv_" + id + "[" + str(resolution - 1) + "] = {\n")
     for i in range(resolution - 1):
-        a1 =  i      * delta
-        a2 = (i + 1) * delta
+        a1 =  i      * delta + delta / 2
+        a2 = (i + 1) * delta + delta / 2
         fd_c.write("\t{1, 0.5, ")
         fd_c.write(str(math.cos(a1)/2+0.5) + ", " + str(math.sin(a1)/2+0.5) + ", ")
         fd_c.write(str(math.cos(a2)/2+0.5) + ", " + str(math.sin(a2)/2+0.5))
@@ -40,7 +40,7 @@ def precalcCircle(fd_c, fd_h, resolution, id):
     out_h.write("// This file contains precalculated math operations.\n")
     out_c.write("// clang-format off\n\n")
     out_h.write("#include \"pax_types.h\"\n\n")
-    precalcCircle(out_c, out_h,  4, "circle_4")
+    precalcCircle(out_c, out_h,  8, "circle_8")
     precalcCircle(out_c, out_h, 16, "circle_16")
     precalcCircle(out_c, out_h, 24, "circle_24")
     precalcCircle(out_c, out_h, 32, "circle_32")