On Friday 21 July 2006 11:19, Jason Green wrote: > + /* Calculate reflection vector (Assume normal is normalized): RF = 2*(N.E)*N -E */ > + shader_addline(buffer, "tmp0.w = dot(vec3(tmp0), %s);\n", src1_str); > + shader_addline(buffer, "tmp0 = tmp0.w * tmp0;\n"); > + shader_addline(buffer, "tmp0 = (2.0 * tmp0) - %s;\n", src1_str);
I'm hardly an expert, but couldn't this be simplified to: shader_addline(buffer, "tmp0 = reflect(-%s, vec3(tmp0));\n", src1_str);
