Forgotten shaders.

data/shaders/glblock_frag.glsl

@@ -0,0 +1,5 @@
+void main() {
+  vec4 color = gl_Color * gl_TexCoord[0].t;
+  color.r = pow(color.r, 0.5);
+  gl_FragColor = color;
+}

data/shaders/glblock_vert.glsl

@@ -0,0 +1,7 @@
+void main() {
+  gl_FrontColor = gl_Color;
+  gl_Position = ftransform();
+
+  gl_TexCoord[0].st = gl_Vertex.xy;
+  gl_TexCoord[0].pq = gl_MultiTexCoord0.xy;
+}