From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Thu, 30 Jul 2015 11:09:12 +0000 (+0200)
Subject: Use std::scientific when outputting floats, so we do not get issues with 0.0 being... 
X-Git-Tag: 1.2.0~37
X-Git-Url: https://git.sesse.net/?p=movit;a=commitdiff_plain;h=457b9a7fa5a508084142dd97290fb590397069ff

Use std::scientific when outputting floats, so we do not get issues with 0.0 being outputs as 0 (which is an int, which cannot always be implicitly converted to float in GLSL).
---

diff --git a/util.cpp b/util.cpp
index 0a294e6..e266fb8 100644
--- a/util.cpp
+++ b/util.cpp
@@ -177,6 +177,7 @@ string output_glsl_mat3(const string &name, const Eigen::Matrix3d &m)
 	stringstream ss;
 	ss.imbue(locale("C"));
 	ss.precision(8);
+	ss << scientific;
 	ss << "const mat3 " << name << " = mat3(\n";
 	ss << "    " << m(0,0) << ", " << m(1,0) << ", " << m(2,0) << ",\n";
 	ss << "    " << m(0,1) << ", " << m(1,1) << ", " << m(2,1) << ",\n";
@@ -190,6 +191,7 @@ string output_glsl_float(const string &name, float x)
 	stringstream ss;
 	ss.imbue(locale("C"));
 	ss.precision(8);
+	ss << scientific;
 	ss << "const float " << name << " = " << x << ";\n";
 	return ss.str();
 }
@@ -200,6 +202,7 @@ string output_glsl_vec2(const string &name, float x, float y)
 	stringstream ss;
 	ss.imbue(locale("C"));
 	ss.precision(8);
+	ss << scientific;
 	ss << "const vec2 " << name << " = vec2(" << x << ", " << y << ");\n";
 	return ss.str();
 }
@@ -210,6 +213,7 @@ string output_glsl_vec3(const string &name, float x, float y, float z)
 	stringstream ss;
 	ss.imbue(locale("C"));
 	ss.precision(8);
+	ss << scientific;
 	ss << "const vec3 " << name << " = vec3(" << x << ", " << y << ", " << z << ");\n";
 	return ss.str();
 }