Microsoft DirectX 9.0 |
This section contains reference information for the vertex shader version 1_1 instructions.
There are several types of vertex shader instructions, as shown in the table. Columns to the right mean the following:
Name | Description | Instruction slots | Setup | Arithmetic | Macro-ops | New |
---|---|---|---|---|---|---|
add | Add two vectors | 1 | x | x | ||
dcl_usage | Declare input vertex registers. See Registers - vs_1_1 | 0 | x | x | ||
def | Define constants | 0 | x | x | ||
dp3 | Three-component dot product | 1 | x | x | ||
dp4 | Three-component dot product | 1 | x | x | ||
dst | Distance | 1 | x | x | ||
exp | Full precision 2x | 10 | x | x | ||
expp | Partial precision 2x | 1 | x | x | ||
frc | Fractional component | 3 | x | x | ||
lit | Calculate lighting | 1 | x | x | ||
log | Full precision log2(x) | 10 | x | x | ||
logp | Partial precision log2(x) | 1 | x | x | ||
m3x2 | 3x2 matrix multiply | 2 | x | x | ||
m3x3 | 3x3 matrix multiply | 3 | x | x | ||
m3x4 | 3x4 matrix multiply | 4 | x | x | ||
m4x3 | 4x3 matrix multiply | 3 | x | x | ||
m4x4 | 4x4 matrix multiply | 4 | x | x | ||
mad | Multiply and add | 1 | x | x | ||
max | Maximum | 1 | x | x | ||
min | Minimum | 1 | x | x | ||
mov | Move | 1 | x | x | ||
mul | Multiply | 1 | x | x | ||
nop | No operation | 0 | x | x | ||
rcp | Reciprocal | 1 | x | x | ||
rsq | Reciprocal square root | 1 | x | x | ||
sge | Greater than or equal compare | 1 | x | x | ||
slt | Less than compare | 1 | x | x | ||
sub | Subtract | 1 | x | x | ||
vs | Version | 0 | x | x |