some fixes for working with engine master branch

assets/shaders/color-shader.fragment

@@ -0,0 +1,8 @@
+precision mediump float;
+
+uniform vec4 Color;
+
+void main() 
+{
+	gl_FragColor = Color;
+}

assets/shaders/color-shader.vertex

@@ -0,0 +1,8 @@
+attribute vec3 vPosition;
+
+uniform mat4 ProjectionMatrix;
+
+void main() 
+{
+	gl_Position = ProjectionMatrix * vec4(vPosition.xyz, 1.0);
+}

assets/shaders/particle-shader.fragment

@@ -0,0 +1,11 @@
+precision mediump float;
+
+in vec2 texCoord;
+flat in vec4 color;
+
+uniform sampler2D Texture;
+
+void main() 
+{
+	gl_FragColor = texture2D(Texture,texCoord) * color;
+}

assets/shaders/particle-shader.vertex

@@ -0,0 +1,15 @@
+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+attribute vec4 vColor;
+
+out vec2 texCoord;
+flat out vec4 color;
+
+uniform mat4 ProjectionMatrix;
+
+void main() 
+{
+	gl_Position = ProjectionMatrix * vec4(vPosition.xyz, 1.0);
+	texCoord = vTexCoord;
+	color = vColor;
+}

assets/shaders/texture-shader.fragment

@@ -0,0 +1,10 @@
+precision mediump float;
+
+varying vec2 texCoord;
+
+uniform sampler2D Texture;
+
+void main() 
+{
+	gl_FragColor = texture2D(Texture,texCoord);
+}

assets/shaders/texture-shader.vertex

@@ -0,0 +1,12 @@
+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+
+varying vec2 texCoord;
+
+uniform mat4 ProjectionMatrix;
+
+void main() 
+{
+	gl_Position = ProjectionMatrix * vec4(vPosition.xyz, 1.0);
+	texCoord = vTexCoord;
+}