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float4x4 problem at program.upload()

Dec 28, 2011 7:56 AM

Hi,

Im trying to get my paticle-vertex-shader to work, but for each particle I need to have a different rotation, scaling and position, but this is not the problem right now. The problem is, that I have to use a float4x4 as an variable. Every time I do lets say float4x4 mat = float4x4(1); the PB3D-Compiler is fine about it.

When compiling the AGAL-program...

this.m_program.upload(programPair.vertexProgram.byteCode, programPair.fragmentProgram.byteCode);

it gives me this as an the error:

AGAL-Überprüfung fehlgeschlagen: Temporärer Registerindex außerhalb des gültigen Bereichs für destination operand bei Token 5 des vertex-Programms.

In english it sais something like this:

Agal-Check failed: Temporary registerindex out of range for destination operand at token 5 of the vertex-Program.

the full vertex-shader:

input vertex float4 vo <id: "PB3D_POSITION";>; // vertex offset

output float4 vertexClipPosition;

parameter float4x4 object;

parameter float4x4 camera;

void evaluateVertex()

{

float4x4 m2 = float4x4(1.0);

float4x4 m = object * camera * m2;

vertexClipPosition = m * vo;

}

Note: This is not the real shader I will use, this is just a test.

m2 is the problem here, because it is not initialized from an existing one. If I just use the matrices from the parameters, everything works like it should.

Any ideas what could be wrong here?

Thanks

887 Views 2 Replies Latest reply: Pak762, Dec 28, 2011 2:54 PM

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1. Pak762,

Dec 28, 2011 8:33 AM in reply to Pak762

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Ok after reading the doc again, I noticed, that my program uses more than 8 temporary registers. 10 to be exact. Now I managed to get it down to 5, but still, the same error.

here is the full code of it.

   input vertex float4 vo <id: "PB3D_POSITION";>; // vertex offset
          input vertex float2 pm; // particle Movement
          input vertex float2 pp; // particle Position
          input vertex float ps; // particle Scale

    output float4 vertexClipPosition;

          parameter float4x4 object;
          parameter float4x4 camera;

   void evaluateVertex()
   {
       float2 dir     = normalize(pm);
       float4x4 m = float4x4(          dir.x, -dir.y, 0.0, 0.0,
                                                      dir.y, dir.x, 0.0, 0.0,
                                                      0.0,    0.0,   1.0, 0.0,
                                                      0.0,    0.0,   0.0, 1.0);

       float4 vp                              = vo * ps;
       vp                                        = m * vp;
       vp.xy                                  += pp.xy;
       m                                         = object * camera;
       vertexClipPosition            = m * vp;
}

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2. Pak762,

Dec 28, 2011 2:54 PM in reply to Pak762

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after trying out so many cases for hours I have to come to the conclusion, that there has to be an error in PB3D.

[object ParticleMaterialShader]
FragmentParameter: color startRegister: 1 offset: 0
FragmentParameter: texTile startRegister: 2 offset: 0
VertexParameter: camera startRegister: 5 offset: 0
VertexInputRegister: pp startRegister: 0
VertexInputRegister: ps startRegister: 1
VertexInputRegister: vo startRegister: 2
VertexInputRegister: UVCoord startRegister: 3
fragment temp registers: 3
vertex   temp registers: 6

It is not working

Now I have a version that uses just 4 vertex tempregisters. Nothing

Here is the code:

input vertex float4 vo <id: "PB3D_POSITION";>; // vertex offset
input vertex float2 pm; // particle Movement
input vertex float2 pp; // particle Position
input vertex float ps; // particle Scale

output float4 vc;

parameter float4x4 camera;

void evaluateVertex()
{
                    float4x4 m                              = float4x4(1.0);
                    float4 vp                              = m * float4(vo.x, vo.y, 0,0);
                    vp.xy                                   *= ps;
                    vp.xy                                 += pp.xy;
                    vc                                                   = camera * vp;
}

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