Uniforms_Widgets_Buffer

Buffer Uniform are the way for have multiPass feature :

• you can load another shader file result attachment in a sampler2D
• you can load another attachment of the current buffer

ex : access to the current fbo, id of the attachment(0 to 7) = > fragColor, fragColor1 to fragColor7, but you can name that like you want. all is defiend in glsl

• uniform sampler2D(buffer:target=0-7) name;

same but access to the fbo of another shader, filename must be without extention work only if a shader have a fbo attached;

• uniform sampler2D(buffer:target=id:file=filename) name;

same logic for these two, but get buffer size");

• uniform vec2(buffer:target=id) name;");
• uniform vec2(buffer:target=id:file=filename) name;

you have option like wraping, filtering, mipmap, filp on sampler2D :

• uniform sampler2d(buffer:target=id:file=filename:flip=true:mipmap=true:wrap=clamp:filter=linear) name;

if you define nothign, the defualt is like this :

• uniform sampler2d(buffer:target=id:file=filename:flip=false:mipmap=true:wrap=clamp:filter=linear) name;

pay attention to never use the name buffer ofr an uniform, its a reserved name, and the resulting erros are weird and not related to that name, so difficult to know what is rely :)