Hi all!
I've got the following problem:
I want to get all samplers out of a program object. But how can I do that? If I loop through all uniform I'm not able to seperate an integer from a sampler. Furthermore I'm not able to find out which sampler type it is.
Ok, I can write my own source which scans the whole GLslang source code but this is REALLY messy.
But is there any other possibility?
Thanks a lot
Florian Rudolf
There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened...
What do you mean by "loop through uniforms"?
Anyway, you could do a sub-string search or have a higher level file that describes the uniforms.
The sub-string search will cost you 10 or 20 lines of code. That's a problem?
------------------------------
Sig: http://glhlib.sourceforge.net
an open source GLU replacement library. Much more modern than GLU.
float matrix[16], inverse_matrix[16];
glhLoadIdentityf2(matrix);
glhTranslatef2(matrix, 0.0, 0.0, 5.0);
glhRotateAboutXf2(matrix, angleInRadians);
glhScalef2(matrix, 1.0, 1.0, -1.0);
glhQuickInvertMatrixf2(matrix, inverse_matrix);
glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);
By using glGetActiveUniform and scanning all active uniforms.Originally posted by V-man:
What do you mean by "loop through uniforms"?
That would be an idea, yeah. But it is quite messy too.Originally posted by V-man:
Anyway, you could do a sub-string search or have a higher level file that describes the uniforms.
The sub-string search will cost you 10 or 20 lines of code. That's a problem?
There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened...
This is unfortunately a known issue. The resolution is in process. It may include additional types representing the different samplers (from Sampler1D through Sampler2DShadow) returned by the <type> parameter of GetActiveUniformARB, which is precisely what you want.Originally posted by Corrail:
Hi all!
I've got the following problem:
I want to get all samplers out of a program object. But how can I do that? If I loop through all uniform I'm not able to seperate an integer from a sampler. Furthermore I'm not able to find out which sampler type it is.
Ok, I can write my own source which scans the whole GLslang source code but this is REALLY messy.
But is there any other possibility?
Thanks a lot
Florian Rudolf
Another alternative to consider until (if) this change is approved is to establish a naming convention for sampler names between application programmers and shader writers. For example:
-mr. billCode :uniform sampler2D s2Dbase; // a terse convention uniform sampler2D sampler2D_basemap; // a less terse convention
Yes, that's exactly what I want. Do you know how/when this will be included in shader objects extension?Originally posted by mrbill:
[CODE]
This is unfortunately a known issue. The resolution is in process. It may include additional types representing the different samplers (from Sampler1D through Sampler2DShadow) returned by the <type> parameter of GetActiveUniformARB, which is precisely what you want.
There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened...
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