"default" on Ogre2.1/D3D11?

[mmixLinus]

Hi, On Win x64, I get

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Cannot compile D3D11 high-level shader __cegui_internal_texture_ps__ Errors:
(11,13-31): error X3523: DX9-style intrinsics are disabled when not in dx9 compatibility mode.


and

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High-level program __cegui_internal_colour_ps__ encountered an error during loading and is thus not supported.
OGRE EXCEPTION(-2147467259:RenderingAPIException): Cannot compile D3D11 high-level shader __cegui_internal_colour_ps__ Errors:
(9,27-33): error X4502: invalid ps_5_0 output semantic 'COLOR'

at startup. Do I need to add dx9 compatibility mode to the microcode compiler, or is the Cegui ("default" branch) shader not ready for this yet? Or something else? Maybe go for OpenGl3+..?

This happens when constructing the OgreRenderer, specifically initialiseShaders();

<3 /mmixLinus

[Ident]

Cegui version? Ogre version?

[mmixLinus]

The title says it all
And I'll post the log file too (soon)

CEGUI branch default (= 1.0) "latest" with OgreRenderer.
Ogre 2.1 "latest" with D3D11 renderer

[mmixLinus]

Oh yes, now I remember why I didn't post the log..

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20/09/2017 16:49:33 (Std)    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
20/09/2017 16:49:33 (Std)    +                     Crazy Eddie's GUI System - Event log                    +
20/09/2017 16:49:33 (Std)    +                          (http://www.cegui.org.uk/)                         +
20/09/2017 16:49:33 (Std)    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

20/09/2017 16:49:33 (Std)    CEGUI::Logger Singleton created. (0000000005CD5730)
20/09/2017 16:49:33 (Std)    
20/09/2017 16:49:33 (Std)    ********************************************************************************
20/09/2017 16:49:33 (Std)    * Important:                                                                   *
20/09/2017 16:49:33 (Std)    *     To get support at the CEGUI forums, you must post _at least_ the section *
20/09/2017 16:49:33 (Std)    *     of this log file indicated below.  Failure to do this will result in no  *
20/09/2017 16:49:33 (Std)    *     support being given; please do not waste our time.                       *
20/09/2017 16:49:33 (Std)    ********************************************************************************
20/09/2017 16:49:33 (Std)    ********************************************************************************
20/09/2017 16:49:33 (Std)    * -------- START OF ESSENTIAL SECTION TO BE POSTED ON THE FORUM       -------- *
20/09/2017 16:49:33 (Std)    ********************************************************************************
20/09/2017 16:49:33 (Std)    ---- Version: 9999.0.0 (Build: Sep 19 2017 Debug Microsoft Windows MSVC++ 12.0 (2013) 64 bit) ----
20/09/2017 16:49:33 (Std)    ---- Renderer module is: CEGUI::OgreRenderer - OGRE based 3rd generation renderer module with Ogre::Compositor2 enabled. ----


The problem arises quite early, in OgreRenderer::constructor_impl() - so that's all there is.

[mmixLinus]

Meh,.. I was running Ogre v2.1, but not latest it turns out. I'll respin and get back.

[mmixLinus]

No difference with latest Ogre 2.1.
CEGUI's pixel shader

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uniform float alphaPercentage;
struct VS_OUT
{
   float4 position : POSITION;
   float4 colour : COLOR;
   float2 uv : TexCoord0;
};
float4 main(float4 colour : COLOR, float2 uv : TexCoord0,                uniform sampler2D texture0 : TEXUNIT0) : COLOR
{
   colour = tex2D(texture0, uv) * colour;
   colour.a *= alphaPercentage;
   return colour;
}


is part of the problem. In the OgreShaderWrapper constructor, in the code

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    const Ogre::GpuConstantDefinitionMap& pixel_map =
        d_pixelShader->getConstantDefinitions().map;

    Ogre::GpuConstantDefinitionMap::const_iterator target2 =
        pixel_map.find("alphaPercentage");


pixel_map is empty, so the find() fails, and OgreShaderWrapper() subsequently throws.

[Ident]

Do you mind trying with CEGUI v0-8 ? Just trying for now, because I know that different ppl made PRs on those two branches and support for Ogre may differ at this point.

[mmixLinus]

I was initially on v0-8 (latest) but having problems, so I decided to try with the default branch. Actually, v0-8 got much further, and that problem was more related to parsing XML resources. I will give v0-8 another shot. For "default", I'll also see if I can select a different Shader Model for the D3D11 compiler, and see if I get further.

[Ident]

Ogre 2.0 and Ogre 2.1 support is entirely based on user contributions

[crancran]

FWIW, I've been working on support for OGRE 2.2 in CEGUI as of late and ran into this very issue. The fix is actually quite trivial. It simply involves making 2 changes to the HLSL shaders in the Ogre renderer module's Shaders.inl file.

1. PixelShaderColoured_HLSL

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"uniform float alphaPercentage;\n"
"\n"
"struct VS_OUT\n"
"{\n"
"   float4 position : POSITION;\n"
"   float4 colour : COLOR;\n"
"};\n"
"\n"
"float4 main(VS_OUT input) : SV_Target\n"
"{\n"
"   float4 colour = input.colour;\n"
"   colour.a *= alphaPercentage;\n"
"   return colour;\n"
"}\n"
"\n"


2. PixelShaderTextured_HLSL
In this shader, we want to change the text to read the following:

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"SamplerState textureSamplerState;\n"
"uniform float alphaPercentage;\n"
"struct VS_OUT\n"
"{\n"
"   float4 position : POSITION;\n"
"   float4 colour : COLOR;\n"
"   float2 uv : TexCoord0;\n"
"};\n"
"\n"
"float4 main(float4 colour : COLOR, float2 uv : TexCoord0, "
"               uniform Texture2D texture0 : TEXUNIT0) : SV_Target\n"
"{\n"
"   colour = texture0.Sample(textureSamplerState, uv) * colour;\n"
"   colour.a *= alphaPercentage;\n"
"   return colour;\n"
"}\n"
"\n"

After making these changes, the OP's original shader compiler problems go away and CEGUI bootstraps just fine. I'm posting this here until I can get the fix into the repo in case others are intersted in patching the OGRE renderer to work with DX11 in the short-term.

[Ident]

Thanks. And you are correct, having this in the repo should definitely be the goal.

[crancran]

I have sent in the PR, found here.