exp - ps

Provides full precision exponential 2x.


exp dst, src



  • dst is the destination register.
  • src is a source register. Source register requires explicit use of replicate swizzle; that is, exactly one of the .x, .y, .z, .w swizzle components (or the .r, .g, .b, .a equivalents) must be specified. See Source Register Swizzling.


Pixel shader versions 1_1 1_2 1_3 1_4 2_0 2_x 2_sw 3_0 3_sw
exp x x x x x


The following code snippet shows the operations performed:

dest.x = dest.y = dest.z = dest.w = (float)pow(2, src.replicateSwizzleComponent);

Pixel Shader Instructions