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ps_1_1, ps_1_2, ps_1_3, ps_1_4 Instructions

  • Article
  • 06/30/2021

This section contains reference information for the pixel shader version 1_X instructions.

There are several types of pixel shader instructions, as shown in the following table.

Instruction Set

Version Description Instruction slots 1_1 1_2 1_3 1_4
ps Version number 0 x x x x
Constant instructions 1_1 1_2 1_3 1_4
def - ps Define constants 0 x x x x
Phase instructions 1_1 1_2 1_3 1_4
phase - ps Transition between phase 1 and phase 2 0 x
Arithmetic instructions 1_1 1_2 1_3 1_4
add - ps Add two vectors 1 x x x x
bem - ps Apply a fake bump environment-map transform 2 x
cmp - ps Compare source to 0 1¹ x x x
cnd - ps Compare source to 0.5 1 x x x x
dp3 - ps Three-component dot product 1 x x x x
dp4 - ps Four-component dot product 1¹ x x x
lrp - ps Linear interpolate 1 x x x x
mad - ps Multiply and add 1 x x x x
mov - ps Move 1 x x x x
mul - ps Multiply 1 x x x x
nop - ps No operation 0 x x x x
sub - ps Subtract 1 x x x x
Texture instructions 1_1 1_2 1_3 1_4
tex - ps Sample a texture 1 x x x
texbem - ps Apply a fake bump environment-map transform 1 x x x
texbeml - ps Apply a fake bump environment-map transform with luminance correction 1+1² x x x
texcoord - ps Interpret texture coordinate data as color data 1 x x x
texcrd - ps Copy texture coordinate data as color data 1 x
texdepth - ps Calculate depth values 1 x
texdp3 - ps Three-component dot product between texture data and the texture coordinates 1 x x
texdp3tex - ps Three-component dot product and 1D texture lookup 1 x x
texkill - ps Cancels rendering of pixels based on a comparison 1 x x x x
texld - ps_1_4 Sample a texture 1 x
texm3x2depth - ps Calculate per-pixel depth values 1 x
texm3x2pad - ps First row matrix multiply of a two-row matrix multiply 1 x x x
texm3x2tex - ps Final row matrix multiply of a two-row matrix multiply 1 x x x
texm3x3 - ps 3x3 matrix multiply 1 x x
texm3x3pad - ps First or second row multiply of a three-row matrix multiply 1 x x x
texm3x3spec - ps Final row multiply of a three-row matrix multiply 1 x x x
texm3x3tex - ps Texture look up using a 3x3 matrix multiply 1 x x x
texm3x3vspec - ps Texture look up using a 3x3 matrix multiply, with non-constant eye-ray vector 1 x x x
texreg2ar - ps Sample a texture using the alpha and red components 1 x x x
texreg2gb - ps Sample a texture using the green and blue components 1 x x x
texreg2rgb - ps Sample a texture using the red, green and blue components 1 x x

 

  1. 1 slot in ps_1_4; 2 slots in ps_1_2 and ps_1_3
  2. 1 + 1 = 1 arithmetic instruction + 1 texture instruction

Pixel Shader Instructions

 

 

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