I found an old thread discussing this here, but it’s a bit too complicated for me to understand: Tiling gui textures possible?
From another thread, I have figured out how to tile a sprite. However, I want to do it in gui so I can use dynamically loaded textures.
For reference, here is the material for the sprite:
I set up my gui material to be more or less the same, except it has the builtin gui.vp.
The sprite .fp:
varying mediump vec2 var_texcoord0;
uniform lowp sampler2D texture_sampler;
uniform lowp vec4 tint;
uniform lowp vec4 scale;
void main()
{
// Pre-multiply alpha since all runtime textures already are
lowp vec4 tint_pm = vec4(tint.xyz * tint.w, tint.w);
lowp vec2 uv = vec2(var_texcoord0.x * scale.x, var_texcoord0.y * scale.y);
gl_FragColor = texture2D(texture_sampler, uv.xy) * tint_pm;
}
I tried to modify gui.fp accordingly. My best attempt was this:
varying mediump vec2 var_texcoord0;
varying lowp vec4 var_color;
uniform lowp vec4 scale;
uniform lowp sampler2D texture_sampler;
void main()
{
lowp vec2 uv = vec2(var_texcoord0.x * scale.x, var_texcoord0.y * scale.y);
lowp vec4 tex = texture2D(texture_sampler, uv.xy);
gl_FragColor = tex * var_color;
}
This doesn’t work - the texture just goes smooth, as if it’s become the average of all the colours.
Any ideas? Thank you!
