Float textures

Axiom (0.9) doesnt give me float texture.

From axiom.log:

[04:41:09] [GL] : Valid FBO targets PF_UNKNOWN PF_L8 PF_L16 PF_A8 PF_A4L4 PF_BYTE_LA PF_R5G6B5 PF_B5G6R5 PF_A4R4G4B4 PF_A1R5G5B5 PF_R8G8B8 PF_B8G8R8 PF_A8R8G8B8 PF_B8G8R8A8 PF_A2R10G10B10 PF_A2B10G10R10 PF_X8R8G8B8 PF_X8B8G8R8 PF_SHORT_RGBA PF_R3G3B2 PF_SHORT_GR PF_SHORT_RGB

For some reason it doenst show float formats (my ATI HD4870 supports them).

From mogre.log (version 1.7.1 (Cthugha))

22:46:11: [GL] : Valid FBO targets PF_UNKNOWN PF_L8 PF_L16 PF_A8 PF_A4L4 PF_BYTE_LA PF_R5G6B5 PF_B5G6R5 PF_A4R4G4B4 PF_A1R5G5B5 PF_R8G8B8 PF_B8G8R8 PF_A8R8G8B8 PF_B8G8R8A8 PF_A2R10G10B10 PF_A2B10G10R10 PF_FLOAT16_RGB PF_FLOAT16_RGBA PF_FLOAT32_RGB PF_FLOAT32_RGBA PF_X8R8G8B8 PF_X8B8G8R8 PF_SHORT_RGBA PF_R3G3B2 PF_FLOAT16_R PF_FLOAT32_R PF_SHORT_GR PF_FLOAT16_GR PF_FLOAT32_GR PF_SHORT_RGB

There they are..

Ok, I found where that problem occurs.
In GLFBORTTManager.cs line 458, there is

// Buggy NVidia Drivers fail on 32Bit FP formats on Windows.
if ( PixelUtil.IsFloatingPoint( (PixelFormat)x ) && PlatformManager.IsWindowsOS && !this._atiMode )
{
continue;
}

It executes that continue (when float textures) , even I have ati-card.

Commenting it out, I get

[05:22:54] [GL] : Valid FBO targets PF_UNKNOWN PF_L8 PF_L16 PF_A8 PF_A4L4 PF_BYTE_LA PF_R5G6B5 PF_B5G6R5 PF_A4R4G4B4 PF_A1R5G5B5 PF_R8G8B8 PF_B8G8R8 PF_A8R8G8B8 PF_B8G8R8A8 PF_A2R10G10B10 PF_A2B10G10R10 PF_FLOAT16_RGB PF_FLOAT16_RGBA PF_FLOAT32_RGB PF_FLOAT32_RGBA PF_X8R8G8B8 PF_X8B8G8R8 PF_SHORT_RGBA PF_R3G3B2 PF_FLOAT16_R PF_FLOAT32_R PF_SHORT_GR PF_FLOAT16_GR PF_FLOAT32_GR PF_SHORT_RGB

Seems right.

[Borrillis]

Can you debug and see why this._atiMode is false for your card?

Seems that _atiMode will never be true.

In GLRenderSystem.Initialization.cs, there is call

this.rttManager = new GLFBORTTManager( this._glSupport, false );

In GLFBORttManager.cs

internal GLFBORTTManager( BaseGLSupport glSupport, bool atiMode )
: base( glSupport )
{
for ( int x = 0; x < this._props.GetLength( 0 ); x++ )
{
this._props[ x ] = new FormatProperties();
}
this._atiMode = atiMode;

so it sets _atiMode to false. There isnt _atiMode=true; anywhere.

[Borrillis]

Doh! I'll check out how this is handled in Ogre and fix it up.