diff --git a/sfw/render_core/color_material.cpp b/sfw/render_core/color_material.cpp
index 91b5700..c531bdb 100644
--- a/sfw/render_core/color_material.cpp
+++ b/sfw/render_core/color_material.cpp
@@ -15,8 +15,8 @@ void ColorMaterial::setup_uniforms() {
 	model_view_matrix_location = get_uniform("u_model_view_matrix");
 }
 
-const GLchar **ColorMaterial::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **ColorMaterial::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_camera_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
@@ -35,8 +35,8 @@ const GLchar **ColorMaterial::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **ColorMaterial::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **ColorMaterial::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;"
 		"varying vec4 v_color;\n"
 		"\n"
diff --git a/sfw/render_core/color_material.h b/sfw/render_core/color_material.h
index 308c527..78fc7ec 100644
--- a/sfw/render_core/color_material.h
+++ b/sfw/render_core/color_material.h
@@ -18,14 +18,14 @@ public:
 	void bind_uniforms();
 	void setup_uniforms();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	ColorMaterial();
 
-	GLint projection_matrix_location;
-	GLint camera_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t camera_matrix_location;
+	int32_t model_view_matrix_location;
 };
 
 #endif
\ No newline at end of file
diff --git a/sfw/render_core/color_material_2d.cpp b/sfw/render_core/color_material_2d.cpp
index 666b6fe..3c7e88e 100644
--- a/sfw/render_core/color_material_2d.cpp
+++ b/sfw/render_core/color_material_2d.cpp
@@ -21,8 +21,8 @@ void ColorMaterial2D::setup_state() {
 	glEnable(GL_TEXTURE_2D);
 }
 
-const GLchar **ColorMaterial2D::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **ColorMaterial2D::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
 		"\n"
@@ -40,8 +40,8 @@ const GLchar **ColorMaterial2D::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **ColorMaterial2D::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **ColorMaterial2D::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;\n"
 		"\n"
 		"varying vec4 v_color;\n"
diff --git a/sfw/render_core/color_material_2d.h b/sfw/render_core/color_material_2d.h
index 4e02092..1bf1652 100644
--- a/sfw/render_core/color_material_2d.h
+++ b/sfw/render_core/color_material_2d.h
@@ -21,13 +21,13 @@ public:
 	void unbind();
 	void setup_state();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	ColorMaterial2D();
 
-	GLint projection_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t model_view_matrix_location;
 };
 
 #endif // COLORED_MATERIAL_H
diff --git a/sfw/render_core/colored_material.cpp b/sfw/render_core/colored_material.cpp
index 2d3e58b..d7993cd 100644
--- a/sfw/render_core/colored_material.cpp
+++ b/sfw/render_core/colored_material.cpp
@@ -16,8 +16,8 @@ void ColoredMaterial::setup_uniforms() {
 	tri_color_uniform_location = get_uniform("fragment_color");
 }
 
-const GLchar **ColoredMaterial::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **ColoredMaterial::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
 		"\n"
@@ -31,8 +31,8 @@ const GLchar **ColoredMaterial::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **ColoredMaterial::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **ColoredMaterial::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;\n"
 		"\n"
 		"uniform vec4 fragment_color;\n"
diff --git a/sfw/render_core/colored_material.h b/sfw/render_core/colored_material.h
index f543e94..eac1ee6 100644
--- a/sfw/render_core/colored_material.h
+++ b/sfw/render_core/colored_material.h
@@ -18,15 +18,15 @@ public:
 	void bind_uniforms();
 	void setup_uniforms();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	ColoredMaterial();
 
-	GLint projection_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t model_view_matrix_location;
 
-	GLint tri_color_uniform_location;
+	int32_t tri_color_uniform_location;
 	Color color;
 };
 
diff --git a/sfw/render_core/font_material.cpp b/sfw/render_core/font_material.cpp
index 682ee22..cf68a89 100644
--- a/sfw/render_core/font_material.cpp
+++ b/sfw/render_core/font_material.cpp
@@ -28,8 +28,8 @@ void FontMaterial::setup_state() {
 	glEnable(GL_TEXTURE_2D);
 }
 
-const GLchar **FontMaterial::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **FontMaterial::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
 		"\n"
@@ -50,8 +50,8 @@ const GLchar **FontMaterial::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **FontMaterial::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **FontMaterial::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;\n"
 		"\n"
 		"uniform sampler2D u_texture;\n"
diff --git a/sfw/render_core/font_material.h b/sfw/render_core/font_material.h
index ab9f575..ea53f22 100644
--- a/sfw/render_core/font_material.h
+++ b/sfw/render_core/font_material.h
@@ -21,15 +21,15 @@ public:
 	void unbind();
 	void setup_state();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	FontMaterial();
 
-	GLint projection_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t model_view_matrix_location;
 
-	GLint texture_location;
+	int32_t texture_location;
 
 	Ref<Texture> texture;
 };
diff --git a/sfw/render_core/material.cpp b/sfw/render_core/material.cpp
index 0306e1e..29663c0 100644
--- a/sfw/render_core/material.cpp
+++ b/sfw/render_core/material.cpp
@@ -5,36 +5,36 @@
 //--STRIP
 
 void Material::bind() {
-    //csak main thread!
+	//csak main thread!
 
-    if (!shader) {
-        shader = ShaderCache::get_singleton()->get_shader(get_material_id());
+	if (!shader) {
+		shader = ShaderCache::get_singleton()->get_shader(get_material_id());
 
-        if (!shader) {
-            shader = memnew(Shader());
+		if (!shader) {
+			shader = memnew(Shader());
 
-            shader->set_vertex_shader_source(get_vertex_shader_source());
-            shader->set_fragment_shader_source(get_fragment_shader_source());
+			shader->set_vertex_shader_source(get_vertex_shader_source());
+			shader->set_fragment_shader_source(get_fragment_shader_source());
 
-            shader->compile();
+			shader->compile();
 
-            ShaderCache::get_singleton()->add_shader(get_material_id(), shader);
-        }
+			ShaderCache::get_singleton()->add_shader(get_material_id(), shader);
+		}
 
-        setup_uniforms();
-    }
+		setup_uniforms();
+	}
 
-    if (current_material && current_material != this) {
-        current_material->unbind();
+	if (current_material && current_material != this) {
+		current_material->unbind();
 
-        setup_state();
-    }
+		setup_state();
+	}
 
-    current_material = this;
+	current_material = this;
 
-    shader->bind();
+	shader->bind();
 
-    bind_uniforms();
+	bind_uniforms();
 }
 
 void Material::unbind() {
@@ -46,20 +46,82 @@ void Material::setup_uniforms() {
 void Material::setup_state() {
 }
 
-GLint Material::get_uniform(const char* name) {
-    GLint uniform = glGetUniformLocation(shader->program, name);
+int32_t Material::get_uniform(const char *name) {
+	int32_t uniform = glGetUniformLocation(shader->program, name);
 
-    if (uniform == -1) {
-        printf("%s is not a valid glsl program variable!\n", name);
-    }
+	if (uniform == -1) {
+		printf("%s is not a valid glsl program variable!\n", name);
+	}
 
-    return uniform;
+	return uniform;
 }
 
 Material::Material() {
-    shader = NULL;
+	shader = NULL;
 }
 Material::~Material() {
 }
 
+void Material::set_uniform(int32_t p_uniform, const Transform &p_transform) {
+	const Transform &tr = p_transform;
+
+	GLfloat matrix[16] = { /* build a 16x16 matrix */
+		tr.basis.rows[0][0],
+		tr.basis.rows[1][0],
+		tr.basis.rows[2][0],
+		0,
+		tr.basis.rows[0][1],
+		tr.basis.rows[1][1],
+		tr.basis.rows[2][1],
+		0,
+		tr.basis.rows[0][2],
+		tr.basis.rows[1][2],
+		tr.basis.rows[2][2],
+		0,
+		tr.origin.x,
+		tr.origin.y,
+		tr.origin.z,
+		1
+	};
+
+	glUniformMatrix4fv(p_uniform, 1, false, matrix);
+}
+
+void Material::set_uniform(int32_t p_uniform, const Transform2D &p_transform) {
+	const Transform2D &tr = p_transform;
+
+	GLfloat matrix[16] = { /* build a 16x16 matrix */
+		tr.columns[0][0],
+		tr.columns[0][1],
+		0,
+		0,
+		tr.columns[1][0],
+		tr.columns[1][1],
+		0,
+		0,
+		0,
+		0,
+		1,
+		0,
+		tr.columns[2][0],
+		tr.columns[2][1],
+		0,
+		1
+	};
+
+	glUniformMatrix4fv(p_uniform, 1, false, matrix);
+}
+
+void Material::set_uniform(int32_t p_uniform, const Projection &p_matrix) {
+	GLfloat matrix[16];
+
+	for (int i = 0; i < 4; i++) {
+		for (int j = 0; j < 4; j++) {
+			matrix[i * 4 + j] = p_matrix.matrix[i][j];
+		}
+	}
+
+	glUniformMatrix4fv(p_uniform, 1, false, matrix);
+}
+
 Material *Material::current_material = NULL;
diff --git a/sfw/render_core/material.h b/sfw/render_core/material.h
index 487b279..8fe2d37 100644
--- a/sfw/render_core/material.h
+++ b/sfw/render_core/material.h
@@ -20,10 +20,10 @@ public:
 	virtual void bind_uniforms();
 	virtual void setup_uniforms();
 	virtual void setup_state();
-	virtual const GLchar **get_vertex_shader_source() = 0;
-	virtual const GLchar **get_fragment_shader_source() = 0;
+	virtual const char **get_vertex_shader_source() = 0;
+	virtual const char **get_fragment_shader_source() = 0;
 
-	GLint get_uniform(const char *name);
+	int32_t get_uniform(const char *name);
 
 	Material();
 	virtual ~Material();
@@ -34,67 +34,9 @@ protected:
 	Shader *shader;
 
 protected:
-	_FORCE_INLINE_ void set_uniform(GLint p_uniform, const Transform &p_transform) {
-		const Transform &tr = p_transform;
-
-		GLfloat matrix[16] = { /* build a 16x16 matrix */
-			tr.basis.rows[0][0],
-			tr.basis.rows[1][0],
-			tr.basis.rows[2][0],
-			0,
-			tr.basis.rows[0][1],
-			tr.basis.rows[1][1],
-			tr.basis.rows[2][1],
-			0,
-			tr.basis.rows[0][2],
-			tr.basis.rows[1][2],
-			tr.basis.rows[2][2],
-			0,
-			tr.origin.x,
-			tr.origin.y,
-			tr.origin.z,
-			1
-		};
-
-		glUniformMatrix4fv(p_uniform, 1, false, matrix);
-	}
-
-	_FORCE_INLINE_ void set_uniform(GLint p_uniform, const Transform2D &p_transform) {
-		const Transform2D &tr = p_transform;
-
-		GLfloat matrix[16] = { /* build a 16x16 matrix */
-			tr.columns[0][0],
-			tr.columns[0][1],
-			0,
-			0,
-			tr.columns[1][0],
-			tr.columns[1][1],
-			0,
-			0,
-			0,
-			0,
-			1,
-			0,
-			tr.columns[2][0],
-			tr.columns[2][1],
-			0,
-			1
-		};
-
-		glUniformMatrix4fv(p_uniform, 1, false, matrix);
-	}
-
-	_FORCE_INLINE_ void set_uniform(GLint p_uniform, const Projection &p_matrix) {
-		GLfloat matrix[16];
-
-		for (int i = 0; i < 4; i++) {
-			for (int j = 0; j < 4; j++) {
-				matrix[i * 4 + j] = p_matrix.matrix[i][j];
-			}
-		}
-
-		glUniformMatrix4fv(p_uniform, 1, false, matrix);
-	}
+	void set_uniform(int32_t p_uniform, const Transform &p_transform);
+	void set_uniform(int32_t p_uniform, const Transform2D &p_transform);
+	void set_uniform(int32_t p_uniform, const Projection &p_matrix);
 };
 
 #endif // MATERIAL_H
diff --git a/sfw/render_core/mesh.h b/sfw/render_core/mesh.h
index 2a01d8c..5c20f43 100644
--- a/sfw/render_core/mesh.h
+++ b/sfw/render_core/mesh.h
@@ -37,8 +37,8 @@ public:
 	Mesh(int vert_dim);
 	virtual ~Mesh();
 
-	GLuint VBO;
-	GLuint IBO;
+	uint32_t VBO;
+	uint32_t IBO;
 
 	int vertex_dimesions;
 
diff --git a/sfw/render_core/shader.cpp b/sfw/render_core/shader.cpp
index ecd33f0..df3c042 100644
--- a/sfw/render_core/shader.cpp
+++ b/sfw/render_core/shader.cpp
@@ -37,12 +37,12 @@ void Shader::compile() {
 		fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
 	}
 
-	const GLchar **vertex_shader_source = get_vertex_shader_source();
+	const char **vertex_shader_source = get_vertex_shader_source();
 
 	glShaderSource(vertex_shader, 1, vertex_shader_source, NULL);
 	glCompileShader(vertex_shader);
 
-	GLint shader_compiled = GL_FALSE;
+	int32_t shader_compiled = GL_FALSE;
 	glGetShaderiv(vertex_shader, GL_COMPILE_STATUS, &shader_compiled);
 	if (shader_compiled != GL_TRUE) {
 		print_shader_errors(vertex_shader, "compiling Vertex Shader");
@@ -51,7 +51,7 @@ void Shader::compile() {
 
 	glAttachShader(program, vertex_shader);
 
-	const GLchar **fragment_shader_source = get_fragment_shader_source();
+	const char **fragment_shader_source = get_fragment_shader_source();
 
 	glShaderSource(fragment_shader, 1, fragment_shader_source, NULL);
 	glCompileShader(fragment_shader);
@@ -72,7 +72,7 @@ void Shader::compile() {
 
 	glLinkProgram(program);
 
-	GLint program_compiled = GL_FALSE;
+	int32_t program_compiled = GL_FALSE;
 	glGetProgramiv(program, GL_LINK_STATUS, &program_compiled);
 	if (program_compiled != GL_TRUE) {
 		print_program_errors(program);
@@ -85,23 +85,23 @@ void Shader::destroy() {
 	glDeleteProgram(program);
 }
 
-const GLchar **Shader::get_vertex_shader_source() {
+const char **Shader::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
-void Shader::set_vertex_shader_source(const GLchar **source) {
+void Shader::set_vertex_shader_source(const char **source) {
 	vertex_shader_source = source;
 }
 
-const GLchar **Shader::get_fragment_shader_source() {
+const char **Shader::get_fragment_shader_source() {
 	return fragment_shader_source;
 }
-void Shader::set_fragment_shader_source(const GLchar **source) {
+void Shader::set_fragment_shader_source(const char **source) {
 	fragment_shader_source = source;
 }
 
-void Shader::print_shader_errors(const GLuint p_program, const char *name) {
+void Shader::print_shader_errors(const uint32_t p_program, const char *name) {
 	int max_length = 5000;
-	Vector<GLchar> error_log;
+	Vector<char> error_log;
 	error_log.resize(max_length);
 
 	glGetShaderInfoLog(p_program, max_length, &max_length, error_log.ptrw());
@@ -110,7 +110,7 @@ void Shader::print_shader_errors(const GLuint p_program, const char *name) {
 	printf("%s!\n", error_log.ptr());
 }
 
-void Shader::print_program_errors(const GLuint p_program) {
+void Shader::print_program_errors(const uint32_t p_program) {
 	if (glIsProgram(program)) {
 		int info_length = 0;
 		int max_length = 5000;
diff --git a/sfw/render_core/shader.h b/sfw/render_core/shader.h
index 3d4c0f9..53ce707 100644
--- a/sfw/render_core/shader.h
+++ b/sfw/render_core/shader.h
@@ -21,27 +21,27 @@ public:
 	void compile();
 	void destroy();
 
-	const GLchar **get_vertex_shader_source();
-	void set_vertex_shader_source(const GLchar **source);
+	const char **get_vertex_shader_source();
+	void set_vertex_shader_source(const char **source);
 
-	const GLchar **get_fragment_shader_source();
-	void set_fragment_shader_source(const GLchar **source);
+	const char **get_fragment_shader_source();
+	void set_fragment_shader_source(const char **source);
 
-	void print_shader_errors(const GLuint p_program, const char *name);
-	void print_program_errors(const GLuint p_program);
+	void print_shader_errors(const uint32_t p_program, const char *name);
+	void print_program_errors(const uint32_t p_program);
 
 	Shader();
 	~Shader();
 
-	GLuint vertex_shader;
-	GLuint fragment_shader;
-	GLuint program;
+	uint32_t vertex_shader;
+	uint32_t fragment_shader;
+	uint32_t program;
 
 	static Shader *current_shader;
 
 protected:
-	const GLchar **vertex_shader_source;
-	const GLchar **fragment_shader_source;
+	const char **vertex_shader_source;
+	const char **fragment_shader_source;
 };
 
 class ShaderCache {
diff --git a/sfw/render_core/texture.cpp b/sfw/render_core/texture.cpp
index 1b5f332..9aa1423 100644
--- a/sfw/render_core/texture.cpp
+++ b/sfw/render_core/texture.cpp
@@ -35,9 +35,9 @@ Ref<Image> Texture::get_data() {
 
 	//GLES
 
-	GLenum gl_format;
-	GLenum gl_internal_format;
-	GLenum gl_type;
+	uint32_t gl_format;
+	uint32_t gl_internal_format;
+	uint32_t gl_type;
 	bool supported;
 	_get_gl_format(_texture_format, gl_format, gl_internal_format, gl_type, supported);
 
@@ -80,9 +80,9 @@ void Texture::upload() {
 		return;
 	}
 
-	GLenum gl_format;
-	GLenum gl_internal_format;
-	GLenum gl_type;
+	uint32_t gl_format;
+	uint32_t gl_internal_format;
+	uint32_t gl_type;
 	bool supported;
 	Image::Format image_format = _image->get_format();
 	_get_gl_format(image_format, gl_format, gl_internal_format, gl_type, supported);
@@ -141,7 +141,7 @@ void Texture::upload() {
 		glTexParameterf(_texture, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 	}
 
-	GLenum texture_type = GL_TEXTURE_2D;
+	uint32_t texture_type = GL_TEXTURE_2D;
 
 	glBindTexture(texture_type, _texture);
 
@@ -179,7 +179,7 @@ void Texture::upload() {
 	glBindTexture(texture_type, 0);
 }
 
-void Texture::_get_gl_format(Image::Format p_format, GLenum &r_gl_format, GLenum &r_gl_internal_format, GLenum &r_gl_type, bool &r_supported) const {
+void Texture::_get_gl_format(Image::Format p_format, uint32_t &r_gl_format, uint32_t &r_gl_internal_format, uint32_t &r_gl_type, bool &r_supported) const {
 	r_gl_format = 0;
 	r_supported = true;
 
diff --git a/sfw/render_core/texture.h b/sfw/render_core/texture.h
index f41f35a..91ccbc9 100644
--- a/sfw/render_core/texture.h
+++ b/sfw/render_core/texture.h
@@ -20,7 +20,7 @@ public:
 		TEXTURE_FLAG_MIP_MAPS = 1 << 3,
 	};
 
-	_FORCE_INLINE_ GLuint get_gl_texture() {
+	_FORCE_INLINE_ uint32_t get_gl_texture() {
 		return _texture;
 	}
 
@@ -36,7 +36,7 @@ public:
 	virtual ~Texture();
 
 protected:
-	void _get_gl_format(Image::Format p_format, GLenum &r_gl_format, GLenum &r_gl_internal_format, GLenum &r_gl_type, bool &r_supported) const;
+	void _get_gl_format(Image::Format p_format, uint32_t &r_gl_format, uint32_t &r_gl_internal_format, uint32_t &r_gl_type, bool &r_supported) const;
 
 	Ref<Image> _image;
 
@@ -49,7 +49,7 @@ protected:
 	int _data_size;
 	int _mipmaps;
 
-	GLuint _texture;
+	uint32_t _texture;
 };
 
 //TODO
@@ -64,7 +64,7 @@ public:
 protected:
 	int _fbo_width;
 	int _fbo_height;
-	GLuint _fbo;
+	uint32_t _fbo;
 };
 
 #endif // TEXTURE_H
diff --git a/sfw/render_core/texture_material.cpp b/sfw/render_core/texture_material.cpp
index d017099..9afddee 100644
--- a/sfw/render_core/texture_material.cpp
+++ b/sfw/render_core/texture_material.cpp
@@ -31,8 +31,8 @@ void TextureMaterial::setup_state() {
 	glEnable(GL_TEXTURE_2D);
 }
 
-const GLchar **TextureMaterial::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **TextureMaterial::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_camera_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
@@ -51,8 +51,8 @@ const GLchar **TextureMaterial::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **TextureMaterial::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **TextureMaterial::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;\n"
 		"\n"
 		"uniform sampler2D u_texture;\n"
diff --git a/sfw/render_core/texture_material.h b/sfw/render_core/texture_material.h
index 0e979e2..7c36925 100644
--- a/sfw/render_core/texture_material.h
+++ b/sfw/render_core/texture_material.h
@@ -21,16 +21,16 @@ public:
 	void unbind();
 	void setup_state();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	TextureMaterial();
 
-	GLint projection_matrix_location;
-	GLint camera_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t camera_matrix_location;
+	int32_t model_view_matrix_location;
 
-	GLint texture_location;
+	int32_t texture_location;
 
 	Ref<Texture> texture;
 };
diff --git a/sfw/render_core/texture_material_2d.cpp b/sfw/render_core/texture_material_2d.cpp
index 420cb70..5175016 100644
--- a/sfw/render_core/texture_material_2d.cpp
+++ b/sfw/render_core/texture_material_2d.cpp
@@ -28,8 +28,8 @@ void TextureMaterial2D::setup_state() {
 	glEnable(GL_TEXTURE_2D);
 }
 
-const GLchar **TextureMaterial2D::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **TextureMaterial2D::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
 		"\n"
@@ -47,8 +47,8 @@ const GLchar **TextureMaterial2D::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **TextureMaterial2D::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **TextureMaterial2D::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;\n"
 		"\n"
 		"uniform sampler2D u_texture;\n"
diff --git a/sfw/render_core/texture_material_2d.h b/sfw/render_core/texture_material_2d.h
index 52cbee3..9ae6ab6 100644
--- a/sfw/render_core/texture_material_2d.h
+++ b/sfw/render_core/texture_material_2d.h
@@ -21,15 +21,15 @@ public:
 	void unbind();
 	void setup_state();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	TextureMaterial2D();
 	
-	GLint projection_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t model_view_matrix_location;
 
-	GLint texture_location;
+	int32_t texture_location;
 
 	Ref<Texture> texture;
 };
diff --git a/sfw/render_core/transparent_texture_material.cpp b/sfw/render_core/transparent_texture_material.cpp
index f0d1827..7785d70 100644
--- a/sfw/render_core/transparent_texture_material.cpp
+++ b/sfw/render_core/transparent_texture_material.cpp
@@ -28,8 +28,8 @@ void TransparentTextureMaterial::setup_state() {
 	glEnable(GL_TEXTURE_2D);
 }
 
-const GLchar **TransparentTextureMaterial::get_vertex_shader_source() {
-	static const GLchar *vertex_shader_source[] = {
+const char **TransparentTextureMaterial::get_vertex_shader_source() {
+	static const char *vertex_shader_source[] = {
 		"uniform mat4 u_proj_matrix;\n"
 		"uniform mat4 u_model_view_matrix;\n"
 		"\n"
@@ -47,8 +47,8 @@ const GLchar **TransparentTextureMaterial::get_vertex_shader_source() {
 	return vertex_shader_source;
 }
 
-const GLchar **TransparentTextureMaterial::get_fragment_shader_source() {
-	static const GLchar *fragment_shader_source[] = {
+const char **TransparentTextureMaterial::get_fragment_shader_source() {
+	static const char *fragment_shader_source[] = {
 		"precision mediump float;\n"
 		"\n"
 		"uniform sampler2D u_texture;\n"
diff --git a/sfw/render_core/transparent_texture_material.h b/sfw/render_core/transparent_texture_material.h
index 022bc8c..404174c 100644
--- a/sfw/render_core/transparent_texture_material.h
+++ b/sfw/render_core/transparent_texture_material.h
@@ -21,15 +21,15 @@ public:
 	void unbind();
 	void setup_state();
 
-	const GLchar **get_vertex_shader_source();
-	const GLchar **get_fragment_shader_source();
+	const char **get_vertex_shader_source();
+	const char **get_fragment_shader_source();
 
 	TransparentTextureMaterial();
 
-	GLint projection_matrix_location;
-	GLint model_view_matrix_location;
+	int32_t projection_matrix_location;
+	int32_t model_view_matrix_location;
 
-	GLint texture_location;
+	int32_t texture_location;
 
 	Ref<Texture> texture;
 };