openGL work and other parts

res/gl/vertex1.glsl

@@ -4,19 +4,39 @@ precision mediump int;
 precision mediump float;
 #endif
 
+uniform mat4 m_matrix;
+uniform mat4 mv_matrix;
 uniform mat4 mvp_matrix;
 
-attribute vec4 a_position;
+attribute vec3 a_position;
+attribute vec3 a_normal;
 attribute vec2 a_texcoord;
+attribute vec3 a_tangent;
 
+varying vec3 v_WorldPos;
+varying vec3 v_CamPos;
+
+varying vec3 v_normal;
 varying vec2 v_texcoord;
+varying mat3 normalMat;
 
-void main()
-{
-	// Calculate vertex position in screen space
-	gl_Position = mvp_matrix * a_position;
+void main() {
 
-	// Pass texture coordinate to fragment shader
-	// Value will be automatically interpolated to fragments inside polygon faces
+
+
+	// interpolation:
+	v_WorldPos = vec3(m_matrix * vec4(a_position, 1.0));
+	v_CamPos = vec3(mv_matrix * vec4(a_position, 1.0));
+	v_normal = a_normal;//normalize(vec3(mv_matrix * vec4(a_normal, 0.0)));
 	v_texcoord = a_texcoord;
+
+
+
+	// http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-13-normal-mapping/
+	vec3 bitangent = cross(a_normal, a_tangent);
+	normalMat = mat3(a_tangent, bitangent, a_normal);
+
+	// 2D position for the vertex
+	gl_Position = mvp_matrix * vec4(a_position, 1.0);
+
 }