Hi,
iam trying to set some parameters of my fragmentshader. First I used the ProgramConstantHelper but it simply is to slow to use in the final program.
After some errors I couldnt figure out how setting the parameters with setProgramConstantsFromVector works, better said, I did not know which registers I have to set. To find that out I first inspected some values in the debugger and than wrote a little code giving me this output.
[object BombExplosionShader]
FragmentParameter: color startRegister: 1 offset: 0
FragmentParameter: size startRegister: 1 offset: 3
FragmentParameter: fposition startRegister: 2 offset: 0
FragmentParameter: resolution startRegister: 2 offset: 2
FragmentParameter: strength startRegister: 3 offset: 0
FragmentParameter: thickness startRegister: 3 offset: 1
first I thought every parameter has its own register, but I was wrong. If the compiler is able to put some parameters into one register, it does.
this is the code to set the parameters of the vector:
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| this.m_parameters[0] | = colorR; |
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| this.m_parameters[1] | = colorG; |
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| this.m_parameters[2] | = colorB; |
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| this.m_parameters[3] | = size; |
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| this.m_parameters[4] | = posX; |
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| this.m_parameters[5] | = posY; |
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| this.m_parameters[6] | = resX; |
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| this.m_parameters[7] | = resY; |
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| this.m_parameters[8] | = strength; |
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| this.m_parameters[9] | = thickness; |
The vector is generated with: new Vector.<Number>(12, true);
and this is the call of setProgramConstantsFromVector:
this.m_context3D.setProgramConstantsFromVector(Context3DProgramType.FR AGMENT, 1, this.m_parameters);
can someone tell me what is wrong with the code?
