Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>This function let's you specify an attribute index for a user defined shader attribute (not for a uniform, as your code sample suggests), which you later use when refering to the attribute.</p> <p>Say you have a vertex shader:</p> <pre><code>... attribute vec4 vertex; //or 'in vec4 vertex' in modern syntax attribute vec3 normal; ... </code></pre> <p>You then can bind indices to those variables, with</p> <pre><code>glBindAttribLocation(program, 0, "vertex"); glBindAttribLocation(program, 1, "normal"); </code></pre> <p>You can use whatever non-negative numbers you like (in a small range). Then when refering to these attributes you use their indices, e.g. in <code>glVertexAttribPointer</code> or <code>glEnableVertexAttribArray</code> functions.</p> <p>But keep in mind that <code>glBindAttribLocation</code> has to be called before linking the program. You can also omit it. Then OpenGL automatically binds indices to all used attributes during linking, which can later be queried by <code>glGetAttribLocation</code>. But with <code>glBindAttribLocation</code> you can establish your own attribute index semantics and keep them consistent.</p> <p>The newer GLSL versions even allow you to specify the attribute indices within the shader (using the <code>layout</code> syntax), removing the need for either <code>glBindAttribLocation</code> or <code>glGetAttribLocation</code>, but I'm not sure if this is supported in ES.</p> <p>But my answer doesn't tell you more than those "various" sites you looked at or any good OpenGL/GLSL book, so if you still don't get it, delve a little deeper into the basics of GLSL.</p>
    singulars
    1. This table or related slice is empty.
    1. POUse of glBindAttribLocation function in OpenGL ES
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USChristian Rau
    1. USChristian Rau
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIf you don't use glBindAttribLocation is there a guaranteed default ordering like 0,1,2... or is a call to glGetAttribLocation required in this case?
      singulars
      1. PO
      1. USJochen
    2. CO@Jochen If you don't use `glBindAttribLocation` nothing is guaranteed and you need `glGetAttribLocation`. While a reasonable driver would probably use the first consecutive indices, nothing stops him from using any arbitrary numbers.
      singulars
      1. PO
      1. USChristian Rau
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload