[Mesa-users] no GL_ARB_texture_float

[burlen]

Thannks! That solved it, at least partially. now texture float is 
available. I'm having some follow up issues.

I'm render to the texture with a vertex and fragment shader. however 
textures are clear, nothing got stored in them. Unfortunately the 
extensions loaded and no errors are reported. The code's been validated 
on all manner of hardware and platforms, so perhaps there's more to it? 
perhaps it's an unrelated issue with GLSL?

Are there any known issues with GLSL and OS Mesa that would explain?

On 04/17/2013 10:23 AM, Brian Paul wrote:
> On 04/17/2013 11:09 AM, burlen wrote:
>> Hi,
>>
>> I've built mesa 9.1.1 with --enable-texture-float, and see all of the
>> related warnings about consulting my lawyer during the configure,
>> however the extensions string does not list the extension
>> GL_ARB_texture_float. I'm using OS Mesa, should this work?
>
> Can you try this patch?
>
>
> diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
> index 9c2fcab..64473b9 100644
> --- a/src/mesa/main/extensions.c
> +++ b/src/mesa/main/extensions.c
> @@ -397,7 +397,9 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
>     ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
>     ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
>     ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
> -   /*ctx->Extensions.ARB_texture_float = GL_TRUE;*/
> +#ifdef TEXTURE_FLOAT_ENABLED
> +   ctx->Extensions.ARB_texture_float = GL_TRUE;
> +#endif
>     ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
>     ctx->Extensions.ARB_texture_rg = GL_TRUE;
>     ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE;
>
>
> -Brian