Is it possible to compile GLSL shaders with the current version of Mesa? I have two programs which use glShaderSourceARB and glCompileShaderARB, but none of them works. They fail with some generic error message (fragment/vertex shader failed to compile).

I'm interested in same functions. Can I use GLSL shaders under AROS?

Hi,

GLSL is working though I don't remember this version is available. There is Cube2 and DOOM3 ports that use it as well I written a simple code in tests/mesasimplerendering which also use shaders.

BSzili: try using functions without ARB suffix

AFAIR both Supermodel and Darkplaces use the non-ARB versions of these functions. but they can't compile shaders either.

edit: Doesn't Doom3 use ARB assembly shaders? Cube2 also supports assembly shaders beside GLSL.

@BSzili

I seem to remember that there are some gl error reporting functions that allow you to read the output of compiler and linker so that you can get more information on what is failing.

Edit, here is my simple code:

fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
glCompileShader(fragmentShader);
glGetShaderInfoLog(fragmentShader, BUFFER_LEN, &len, buffer);
printf("Fragment shader compile output: %s\n", buffer);

vertexShader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertexShader, 1, &vertexShaderSource, NULL);
glCompileShader(vertexShader);
glGetShaderInfoLog(vertexShader, BUFFER_LEN, &len, buffer);
printf("Vertex shader compile output: %s\n", buffer);

shaderProgram = glCreateProgram();
glAttachShader(shaderProgram, vertexShader);
glAttachShader(shaderProgram, fragmentShader);
glLinkProgram(shaderProgram);
glGetProgramInfoLog(shaderProgram, BUFFER_LEN, &len, buffer);
printf("Shader program compile output: %s\n", buffer);

It turns out that supermodel already had the glGetShaderInfoLog() function.



This is the output I'm getting:
Quote:

The output is same for the fragment and the vertex shader.

edit: And the line which causes the error:
Quote:

edit #2: Well, what do you know, getting rid of that line from the shader helped the problem. So our Mesa implementation doesn't know about the #version directive?

Attach file:

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  supermodel1.jpg (319.49 KB)


  supermodel2.jpg (308.75 KB)