diffuse BSDF
,Shader to RGB
Turns the data (casting in programming speak) into RGB colors.
Without this we cannot change the colors using a color ramp,Color Ramp node
remaps the grey values to the color you want,Mix shader
node is a grey value. It determines the mixing factor of shader 1 and shader 2. White color shows Shader 2
, black color shows Shader 1
difference node
(a mix node) compares the original texture to color 2
(the color we want to remove when texture do not have alpha channel, black if it has alpha).less than node
(a math node) refines the edges of the mask using the threshold value.diffuse BSDF node
can be exchanged to Emission shader
for shadeless texture or a more elaborate setup.Alpha Clip, Alpha Blend or Alpha Hatch
. Which of these Blend mode you choose will depend on your use case.