You are quite right - also the following instruction:
{
EASY_PFS_INSTR0(MAD, SRC0C_XYZ, ONE, ZERO),
EASY_PFS_INSTR1(0, 0, 0 | PFS_FLAG_CONST, 0 | PFS_FLAG_CONST, NONE, ALL),
EASY_PFS_INSTR2(MAD, SRC0A, ONE, ZERO),
EASY_PFS_INSTR3(0, 0, 0 | PFS_FLAG_CONST, 0 | PFS_FLAG_CONST, OUTPUT)
}
looks like a NOP ( it basically does reg0<-reg0*1+0.0 ).
with some more testing I found:
- FLAT_COLOR_PIXEL_SHADER needs 2 NOP when resizing window->full screen to avoid corruption. Can you add these NOPs only when resizing? =)
- SINGLE_TEXTURE_VERTEX_SHADER needs 1 NOP to get q3a to work for me. else get a blank screen. The game runs fine I just can't see anything. The NOP might be needed for the initial setup.
Rune Petersen
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