El Brujo de la Tribu

Hi everybody. Today I have done a reference of the new node Blackbody. This node produces a range of colors according to the temperature of a body . It comes from a physical theory which explains that the color of the radiation doesn't depend on the shape or composition of the body, only in its temperature. This node is useful to set emission color for materials: bulbs, lamps, sky or sun. I have used two node setups in this reference (you can see 6000ºK to see the difference): A. Emission Setup: It is a simple setup, with lower strength for camera rays. So you can appreciate the light from the object in a dark scene. B. Lamp Setup: I have added glossiness to the material and mixed with Emission to get a material similar to lamps. This is the bulb node group included, useful for lamps: EDIT: You can download all these materials in blendswap . Black Body Lights reference: 1900ºK Candle 2500ºK Bulb Tungsten 2900ºK Bulb Tung...

Here it is a brief reference about facing mixing with layer weight node. This is the node setup I have used for this test: And these are the results: Facing 0.1 Facing 0.3   Facing 0.5 Facing 0.7 Facing 0.9 Bye

Here it is a brief reference about fresnel mixing with layer weight node. This is the node setup I have used for this test: And these are the results: Fresnel 0.1 Fresnel 0.3 Fresnel 0.5 Fresnel 0.7 Fresnel 0.9 Bye

Hi everybody. I'm going to expose a brief reference about Geometry Node Vectors. I have plugged the vector coordenates into the color socket of a diffuse node. Separate and combine RGB nodes are not necessary, but I show them here for a clearer explanation.  Here is the result: Position Vector Normal Vector Tangent Vector True Normal Vector Incoming Vector Parametric Vector And this is the result of a dot product between Normal and Incoming vectors: Dot Product Normal-Incoming Value Bye