Dx11 - spreading rasterizer

vvvv beta question
1

Hey

I’m sure in dx9 it was possible to spread the rasterizer, eg to draw a wireframe and solid version of a model at once.

This doesn’t seem possible with dx11 shaders. Is is possible within the shader itself, maybe having a two passes with a different setting for each?

I actually want to this to be able to draw transparent geometry by rendering the back faces first, then the front faces

Cheers

2

Ok, I’ve found out how to set blend and renderstates in the shader.

Am using the following -

BlendState AlphaBlendingOn
{
    BlendEnable[0](0) = TRUE;
    DestBlend = INV_SRC_ALPHA;
    SrcBlend = SRC_ALPHA;
};

RasterizerState CullFront {
    FrontCounterClockwise = TRUE; 
};

RasterizerState CullBack {
    FrontCounterClockwise = FALSE; 
};


technique10 Constant
{
	pass P0
	{
	
		SetBlendState(AlphaBlendingOn, float4(0.0f, 0.0f, 0.0f, 0.0f), 0xFFFFFFFF);
		SetRasterizerState( CullFront );
		SetVertexShader( CompileShader( vs_4_0, VS() ) );
		SetPixelShader( CompileShader( ps_4_0, PS() ) );
	}
	pass P1
	{
		
		SetBlendState(AlphaBlendingOn, float4(0.0f, 0.0f, 0.0f, 0.0f), 0xFFFFFFFF);
		SetRasterizerState( CullBack );
		SetVertexShader( CompileShader( vs_4_0, VS() ) );
		SetPixelShader( CompileShader( ps_4_0, PS() ) );
	}
}

Problem is, only the first pass is visible… Any ideas?

3

U need to spread technique i guess

4

no joy there either

5

iirc several passes are not allowed anymore in vuxes dx11 implementation (or in general?!)

6

don’t think it’s implementation problem, prolly u have to setup it somehow

7

No. I asked vux some time ago when I wanted to convert the planetshader from dx9 to dx11. Only 1 pass possible ;)