Clean up object texture loading, custom mipmap generator

shaders/object.fs

@@ -5,21 +5,19 @@
 layout(location = 2) uniform sampler2D texBase;
 layout(location = 3) uniform sampler2DArray texAnim;
 layout(location = 4) uniform uint animFrame;
-layout(location = 5) uniform vec3 IDcolor;
 
 in vec2 fragTC;
 
 flat in uint fragUseAnimTex;
 
 layout(location = 0) out vec4 color;
-layout(location = 1) out vec4 IDcolor_out;
 layout(depth_unchanged) out float gl_FragDepth;
 
 void main(void) {
-  color = bool(fragUseAnimTex)?texture(texAnim, vec3(fragTC, animFrame)):texture(texBase, fragTC);
+  vec4 texel = bool(fragUseAnimTex)?texture(texAnim, vec3(fragTC, animFrame)):texture(texBase, fragTC);
 	      
-  if (color.w < 0.5)
+  if (texel.a < 0.5)
     discard;
-  
-  IDcolor_out = vec4(IDcolor, 1.0);
+
+  color = texel;
 }