diff --git a/src/Graphics/OpenGLContext/GLSL/glsl_SpecialShadersFactory.cpp b/src/Graphics/OpenGLContext/GLSL/glsl_SpecialShadersFactory.cpp
index 802277dc..23589683 100644
--- a/src/Graphics/OpenGLContext/GLSL/glsl_SpecialShadersFactory.cpp
+++ b/src/Graphics/OpenGLContext/GLSL/glsl_SpecialShadersFactory.cpp
@@ -368,12 +368,12 @@ namespace glsl {
 			"                                                                                 \n"
 			"mediump vec2 norm2denorm(sampler2D tex, mediump vec2 uv)                         \n"
 			"{                                                                                \n"
-			"    return uv * get_texture_size(tex) - 0.5f;                                    \n"
+			"    return uv * vec2(get_texture_size(tex)) - 0.5;                               \n"
 			"}                                                                                \n"
 			"                                                                                 \n"
 			"mediump vec2 denorm2norm(sampler2D tex, mediump vec2 denorm_uv)                  \n"
 			"{                                                                                \n"
-			"    return (denorm_uv + 0.5f) / get_texture_size(tex);                           \n"
+			"    return (denorm_uv + 0.5) / vec2(get_texture_size(tex));                      \n"
 			"}                                                                                \n"
 			"                                                                                 \n"
 			"mediump vec4 hybridFilter(sampler2D tex, mediump vec2 uv)                        \n"
@@ -398,21 +398,21 @@ namespace glsl {
 			"                                                                                 \n"
 			"    // Here, fwidth() is used to estimte how much denorm_uv changes per fragment.\n"
 			"    // But we divide it by 2, since fwidth() is adding abs(dx) + abs(dy).        \n"
-			"    mediump vec2 fragment_size  = fwidth(denorm_uv) / 2.0f;                      \n"
+			"    mediump vec2 fragment_size  = fwidth(denorm_uv) / 2.0;                       \n"
 			"                                                                                 \n"
 			"    // Only do this if fragment is smaller than 1 texel.                         \n"
-			"    if (fragment_size.s < 1.0f) {                                                \n"
+			"    if (fragment_size.s < 1.0) {                                                 \n"
 			"        // don't make the transition more than one fragment (+/- 0.5 fragment)   \n"
-			"        float radius = min(fragment_size.s, 0.5f);                               \n"
-			"        ratio.s = smoothstep(0.5f - radius,                                      \n"
-			"                             0.5f + radius,                                      \n"
+			"        mediump float radius = min(fragment_size.s, 0.5);                        \n"
+			"        ratio.s = smoothstep(0.5 - radius,                                       \n"
+			"                             0.5 + radius,                                       \n"
 			"                             ratio.s);                                           \n"
 			"    }                                                                            \n"
-			"    if (fragment_size.t < 1.0f) {                                                \n"
+			"    if (fragment_size.t < 1.0) {                                                 \n"
 			"        // don't make the transition more than one fragment (+/- 0.5 fragment)   \n"
-			"        float radius = min(fragment_size.t, 0.5f);                               \n"
-			"        ratio.t = smoothstep(0.5f - radius,                                      \n"
-			"                             0.5f + radius,                                      \n"
+			"        mediump float radius = min(fragment_size.t, 0.5);                        \n"
+			"        ratio.t = smoothstep(0.5 - radius,                                       \n"
+			"                             0.5 + radius,                                       \n"
 			"                             ratio.t);                                           \n"
 			"    }                                                                            \n"
 			"                                                                                 \n"