diff --git a/CMakeLists.txt b/CMakeLists.txt
index c65e4e2..eafdb7e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,6 +34,7 @@ FetchContent_MakeAvailable(raylib)
 FetchContent_Declare(
 	msdfgen
 	GIT_REPOSITORY https://github.com/Chlumsky/msdfgen.git
+	GIT_TAG "v1.12.1"
 	GIT_SHALLOW 1
 )
 set(MSDFGEN_BUILD_STANDALONE OFF)
diff --git a/src/TextRenderer.cpp b/src/TextRenderer.cpp
index 24ba392..6e97453 100644
--- a/src/TextRenderer.cpp
+++ b/src/TextRenderer.cpp
@@ -130,7 +130,7 @@ auto TextRenderer::generate_glyph(FontRuntime &rt, FontData &fd,
 	        msdfgen::FONT_SCALING_EM_NORMALIZED, &advance_em))
 		return std::nullopt;
 	shape.normalize();
-	msdfgen::edgeColoringSimple(shape, 3.0);
+	msdfgen::edgeColoringInkTrap(shape, 3.0);
 	auto bounds = shape.getBounds();
 	float const width_em = static_cast<float>(bounds.r - bounds.l);
 	float const height_em = static_cast<float>(bounds.t - bounds.b);
@@ -172,14 +172,11 @@ auto TextRenderer::generate_glyph(FontRuntime &rt, FontData &fd,
 		int const dst_y = bmp_h - 1 - y;
 		for (int x = 0; x < bmp_w; ++x) {
 			float const *px = msdf_bitmap(x, y);
-			auto const clamp = [](float v) {
-				printf("%.2f ", v);
-				return static_cast<unsigned char>(
-				    std::lround(std::clamp(v, 0.0f, 1.0f) * 255.0f));
-			};
+			auto const r = msdfgen::pixelFloatToByte(px[0]);
+			auto const g = msdfgen::pixelFloatToByte(px[1]);
+			auto const b = msdfgen::pixelFloatToByte(px[2]);
 			buffer[static_cast<size_t>(dst_y) * bmp_w + x]
-			    = Color { clamp(px[0]), clamp(px[1]), clamp(px[2]), 255 };
-			printf("\n");
+			    = Color { r, g, b, 255 };
 		}
 	}
 
@@ -237,11 +234,15 @@ auto TextRenderer::ensure_glyph(FontRuntime &rt, FontData &fd, u32 glyph_index,
 
 TextRenderer::TextRenderer()
 {
+	static char const msdf_vs_data[] {
+#embed "base.vs"
+		, 0
+	};
 	static char const msdf_fs_data[] {
 #embed "msdf.fs"
 		, 0
 	};
-	m_msdf_shader = LoadShaderFromMemory(nullptr, msdf_fs_data);
+	m_msdf_shader = LoadShaderFromMemory(msdf_vs_data, msdf_fs_data);
 	assert(IsShaderValid(m_msdf_shader));
 	m_px_range_uniform = GetShaderLocation(m_msdf_shader, "pxRange");
 }
@@ -347,12 +348,11 @@ auto TextRenderer::draw_text(FontHandle const font, std::string_view const text,
 	float pen_y_em = 0.0f;
 	rt.frame_stamp++;
 
-	// BeginShaderMode(m_msdf_shader);
+	BeginShaderMode(m_msdf_shader);
 	if (m_px_range_uniform >= 0) {
 		float shader_px_range = rt.px_range;
-		// SetShaderValue(
-		//     m_msdf_shader, m_px_range_uniform, &shader_px_range,
-		//     SHADER_UNIFORM_FLOAT);
+		SetShaderValue(m_msdf_shader, m_px_range_uniform, &shader_px_range,
+		    SHADER_UNIFORM_FLOAT);
 	}
 
 	for (unsigned i = 0; i < length; ++i) {
@@ -395,7 +395,7 @@ auto TextRenderer::draw_text(FontHandle const font, std::string_view const text,
 		pen_y_em += hb_to_em(positions[i].y_advance, rt.units_per_em);
 	}
 
-	// EndShaderMode();
+	EndShaderMode();
 	hb_buffer_destroy(buffer);
 
 	auto const draw_end = std::chrono::steady_clock::now();
@@ -426,7 +426,7 @@ auto TextRenderer::load_font(std::filesystem::path const &path)
 	runtime->pen_x = kAtlasPadding;
 	runtime->pen_y = kAtlasPadding;
 	runtime->row_height = 0;
-	runtime->px_range = kDefaultPxRange;
+	runtime->px_range = 0.05; // kDefaultPxRange;
 	runtime->em_scale = kDefaultEmScale;
 	runtime->frame_stamp = 0;
 	runtime->units_per_em
diff --git a/src/base.vs b/src/base.vs
new file mode 100644
index 0000000..2ea85c4
--- /dev/null
+++ b/src/base.vs
@@ -0,0 +1,19 @@
+#version 100
+
+attribute vec3 vertexPosition;
+attribute vec2 vertexTexCoord;
+attribute vec3 vertexNormal;
+attribute vec4 vertexColor;
+
+uniform mat4 mvp;
+
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+void main()
+{
+    fragTexCoord = vertexTexCoord;
+    fragColor = vertexColor;
+
+    gl_Position = mvp*vec4(vertexPosition, 1.0);
+}