I was following a tutorial on how to make realistic trees. In one part, the person makes a leaf and uses nodes to make a material. He uses a color ramp and the leaf turns black and white, but the person was able to view it in color when he clicked on Diffuse BSDF. However, I still see it as black and white! I fear I have done something wrong and if I continue without trying to fix it, I will mess up my mesh later on.
With the Image texture Add transparent and Diffuse BSDF with Mix Shader. With the Alpha of image texture connect to Factor of Mix shader as shown in image.
Another simple way just activate Image as plane addon in Blender. Press Shift+A Mesh -> Image as plane. Navigate to the png image. Thats it Press Shift+Z to render view.
I think the person might have enabled the 'Node Wrangler' add-on. Here's how you can activate it: Then you can view real-time node updates like this : https://youtu.be/jIGJOwOjAtI?t=164
You connected the image texture to a ColorRamp (black/White) and that's exactly what you get. if you want to see the color just connect the image texture to the Diffuse directly.
maybe link the tutorial so we can see what is the issue exactly..