Comments on: shed some bytes

By: Lost in the Triangles » Blog Archive » 64k coding continued

Lost in the Triangles » Blog Archive » 64k coding continued — Sat, 24 Mar 2007 17:44:52 +0000

[...] Compiling HLSL in two steps (HLSL->asm and asm->bytecode) instead of direct (HLSL->bytecode) gets rid of the constant table, some copyright strings and hence is good. (thanks blackpawn!) [...]

By: NeARAZ

NeARAZ — Tue, 13 Dec 2005 08:39:05 +0000

Yeah, I'm already using that (that's why I have no use of the constant table). Actually, a macro processing is more convenient: have a header file 'constants.h' with something like:

#define SHC_WORLDMAT 0
#define SHC_VIEWPROJMAT 4
// etc.
#define REG(x) register(c##x)

Then use this header file in both HLSL (float4x4 world : REG(0)) and C++ (just use the constants)

By: blackpawn

blackpawn — Tue, 13 Dec 2005 08:38:50 +0000

glad to help. one other useful bit is that if you don’t already know, you can force HLSL to map a constant to a particular register using for example:

float4x4 world : register(c0);

By: NeARAZ

NeARAZ — Tue, 13 Dec 2005 08:38:31 +0000

Thanks for the tip! Exactly this issue is what I was worried about at the moment. The version string is probably okay (exe compressor should take care of it); but the constant tables were useless in my case.