Tenebrism vs Chiaroscuro: Explained with Baroque Art

The illusion of form is what gives a subject its three-dimensional appearance. While shape is two-dimensional (triangles, squares, circles), form is three-dimensional. We understand the form of a subject through the use of value. Value is the darkness or lightness of a color. Light comes from a light source and hits the subject with some light reflecting back and some not reaching certain areas. We need to include light areas, dark areas, and shadows in our drawing to create the illusion of three-dimensional form. A value scale shows the range of values from darkest to lightest. Gray paper helps create a full range of value because you start somewhere in the middle and can push values lighter and darker. When adding value, start in the areas of darkest value because it's easier to make a value darker if needed. Contrast is one of the principles of art and refers to differences in value, which helps us understand that we can go inside the subject and makes it appear more three-dimensional.

Tonal value is the foundation of interesting artwork, referring to how artists use light and dark areas to create visual interest. When lines group together, they create darker, more profound areas. The proximity of lines creates the illusion of darkness, while their separation creates lightness. Artists use various hatching techniques to create depth: parallel lines, cross-hatching, diagonal hatching, crossed X patterns, and woven or braided patterns. To create depth, artists vary hatching density—elements closer to the viewer should have denser, darker hatching. Tonal value is the artist's ability to create light and dark areas within a single element. Artists can create a simplified four-step tonal value scale: lightest value (white paper), light value, medium value, and darkest value. Artists can create effective volume using just two tonal values: light and dark. To create convincing three-dimensional forms, artists must identify where the light source is coming from, as this determines where highlights and shadows will fall. Understanding three-dimensional form requires knowing its components: highlight (luz própria), form shadow (sombra própria), cast shadow (sombra projetada), reflected light (luz refletida), and gradient or penumbra (degradê).

To create the illusion of three-dimensional objects in painting, artists should establish three key values: the darkest dark, the mid-tone (5), and the lightest light. This three-value structure creates the illusion of volume and form. The darkest dark typically appears in shadowed areas, the mid-tone represents the middle ground, and the lightest light appears where the light source directly strikes the object.

Tonal value (tonalidade) is the first and most fundamental type of contrast in art, referring to the range of lightness and darkness from white to black through grays. Artists use tonal values to create volume and form, with lighter areas representing surfaces facing light and darker areas representing shadowed surfaces. This contrast is essential for making drawings and paintings visually perceptible, as it allows viewers to distinguish different parts of an image. The scale of tonal values typically includes white, light gray, medium gray, dark gray, and black, which artists can create using materials like charcoal, pastel, or pencil.

To create three-dimensional form in painting, start with a mid-tone base and emphasize the contrast between lights and darks using short, choppy brushstrokes; the key is establishing a strong light source and creating dramatic value contrast rather than focusing on details, which makes objects appear round and gives paintings a more dynamic, exciting appearance.

The 17th and 18th centuries represented for painting a new golden age that in nothing ceded to the interest of the brilliant episode of the Renaissance, whose rich legacy served as a starting point for Baroque painting. A formidable generation of painters, among whom would be counted masters like Rubens, Van Dyck, Rembrandt, Velázquez, Murillo, or Ribera, expanded the horizons of Baroque painting with a new conception of light, color, and composition, each school having its own personality. In its beginnings, Baroque painting allied itself firmly with tenebrism, that tendency initiated by Caravaggio that used strong contrasts of light and shadow, giving an unknown drama to its paintings, in combination with the new points of view chosen of strong theatrical effect. Other masters followed that line, introducing light itself into the painting, closing much the luminous diaphragm and raising the rest of the painting in the darkness. Thus, light, which had always been alongside color as guide and north of painting, acquired now a silent protagonism that, by excess or defect, by origin or direction, transforms the space, gives it depth, and reinforces or dissolves the matter, acting as a decisive enveloping mechanism. Intense or contrasted light also highlighted objects, making patent not only their form and color but their tactile reality, their inert matter, their special brilliance, reaching to become a field that counted with excellent specialists, that of still lifes. The increasing complexity of these still lifes, incorporating a greater number of elements and half-figure figures, whose voluptuous disorder in Flemish painting contrasts with the formal sobriety and compositional sobriety of Spanish still lifes with figures. Beyond light, composition was another of the aspects that best defined this new Baroque stage, as in schools like the Italian and Flemish, movement, crossed and oblique lines, unstable movement, and a certain centrifugal tension were sought above all, which in the case of Rubens acquired special force by the wise mastery of masses learned from Michelangelo. However, not all painting of this moment was governed by the same parameters, and thus the Spanish and French schools, painting of Velázquez, for example, tended to ordered compositions, disposing figures in static attitudes that have much to do with classical statuary. Beyond still lifes with or without figures and mythological subjects, Baroque painting addressed all possible genres, among which could not be missing the portrait, both corporate and the famous Anatomy Lesson of Dr. Tulp painted by Rembrandt, or the court portrait in which the delicate elegance of Van Dyck always stood out. An era like the Baroque, which lived the offensive of the Counter-Reformation and the apology of Catholic religion, had one of its firmest propagandistic supports in painting, from the heroic character that Rubens knew to impress on religious subjects to the domestic and familiar treatment that Murillo gave them, passing through the great picture of apparatus that commemorates miracles and intercession of the Sacred Heart. The rich iconography of religious painting then reached its culminating moment. Mythology and religion were also the two great themes that developed the great mural painting, especially in Italy, where the tradition of the fresco technique was never lost. The work that initiates the Baroque series is the early Triumph of Bacchus and Ariadne by Annibale Carracci in the Farnese Palace in Rome, where his Mannerist character is still appreciated. This disappears in the inequivalently Baroque vision in the ceiling of the Barberini Palace by Pietro da Cortona or in the spectacular dome of the Church of San Ignacio in Rome by Andrea Pozzo, one of the most important perspectives that painting history has given. Luca Giordano, at the end of the 17th century, left an excellent series of domes and ceilings, such as that of the main staircase of the Escorial monastery, serving as a bridge to the 18th century, which would see the work of one of the most notable frescoists of all times, the Venetian Giovanni Battista Tiepolo, whose work was distributed throughout most of the churches and palaces of Europe, from Burgos to Madrid. The end of Baroque painting in the 18th century was influenced by the French taste, amiable and sensual, known under the name of Rococo, coinciding in large part with the reign of Louis XV. The works of Boucher, and especially those of Fragonard, with the known portraits of Madame Pompadour or the diaphanous goddesses and the non-naive nudes, give good measure of that voluptuous character in which French painting immersed itself.

Piero della Francesca (mid-15th century) mastered linear perspective and created the first portrait of a real, living person (Duke of Urbino) rather than a biblical figure, depicting actual individuals with specific physical characteristics. Antonio del Pollaiuolo's 'Saint Sebastian' demonstrated his focus on anatomical accuracy, showing the same action (archers shooting) from multiple perspectives to understand how the human body moves in different spatial orientations. Early Renaissance artists consciously dedicated their lives to laying foundations for future generations, developing techniques that would allow subsequent artists to express themselves freely rather than primarily expressing their own personal visions.

The High Renaissance (1469-1520) emerged when Leonardo da Vinci, Michelangelo, and Raphael transformed European art through innovative techniques and styles; Leonardo pioneered linear perspective, atmospheric sfumato, and anatomical precision in works like 'The Last Supper' and 'Mona Lisa'; Michelangelo revolutionized sculpture with contrapposto and dramatic musculature in 'Pietà' and 'David'; and Raphael synthesized these innovations with graceful compositions and soft modeling in works like the 'Madonna of the Meadow,' establishing the three pillars of Renaissance art—painting, sculpture, and architecture—under the patronage of Pope Julius II who sought to make Rome the new cultural capital of Italy.

Rembrandt studied anatomy and light carefully to create realistic group portraits. In The Anatomy Lesson of Dr. Tulp, each figure is positioned at a different angle, with light falling on each face differently. This variety of angles and lighting creates visual interest while maintaining anatomical accuracy, demonstrating how Baroque artists combined observation with artistic composition.

The Renaissance era was divided into two distinct periods: the Early Renaissance (early 1400s to 1495) focused on developing foundational techniques like linear perspective, anatomical realism, and naturalism, while the High Renaissance (1490s to 1526) was characterized by three master artists—Leonardo da Vinci, Michelangelo, and Raphael—who elevated religious art to unprecedented heights through their technical mastery and innovative approaches.

Caravaggio fundamentally rejected the classical artistic tradition of painting ancient marbles and Raphael's celebrated works. Instead, he chose to paint exclusively from nature, believing that nature itself provided sufficient artistic masters. To demonstrate this philosophy, he famously called a passing Egyptian woman (a zingara) and painted her in the act of predicting fortunes, proving that natural observation could surpass classical conventions. This approach led to radiographic discoveries revealing underlying images beneath his paintings, such as a Madonna beneath 'Buonaventura,' indicating he sometimes repurposed existing canvases. His radical commitment to naturalism marked a decisive break from academic traditions and established his reputation as a revolutionary artist.

Caravaggio revolutionized art by rejecting idealized beauty, depicting saints among the poor, drunkards, and prostitutes. Born in Milan in 1571, his childhood was marked by tragedy when his father died at age 6 during plague. He arrived in Rome around 1592, where he found himself in a chaotic city where life was cheap and honor was defended with drawn blades. His police archives reveal multiple arrests for assaults with swords and daggers. His preferred companions were not refined intellectuals but bravi valentones, skilled swordsmen, discharged soldiers, and prostitutes. He used real courtesans as models for sacred figures, including Melandrone as Judith and Saint Catherine, and Ana Bianquini as the Virgin and Penitent Magdalene. The Death of the Virgin, depicting Mary as a dead woman with swollen belly, was rejected by the Carmelite Church.

Michelangelo Merisi da Caravaggio (1571-1610) was an Italian painter considered the first realist in Western art. Despite living only 37 years, he left an enormous artistic legacy. His contemporaries hated him because he broke artistic conventions - he didn't create preliminary sketches or develop compositions in advance, instead painting directly on canvas. He posed with poor people and depicted them as saints. His controversial work 'The Resurrection of Lazarus' required models to hold a real corpse from a grave. His paintings are among the most copied in the world and are valued at hundreds of millions of dollars on international auctions. The stolen Caravaggio painting was intended to be sold to a wealthy Italian collector for $2 million, with accomplices planning to emigrate to Italy.

Caravaggio (Michelangelo Merisi) revolutionized art at age 25 in 1596 by depicting everyday people in natural, sometimes morally questionable states. His chiaroscuro technique—extreme light and shadow contrast—shocked contemporary standards that idealized religious figures. Despite controversy, he received major commissions including three frescoes in the Contarelli Chapel. His paintings captured intense human emotions: 'The Calling of Saint Matthew' shows reluctant conversion, while 'Judith Beheading Holofernes' portrays weariness and agonizing death. His relationship with model Filippa Melandroni and patron Ranuccio Tomassoni led to violence—Caravaggio wounded Tomassoni, causing fatal hemorrhage. Fleeing Roman authorities, he continued painting while seeking Church protection. His final recognized work, 'The Martyrdom of Saint Ursula,' depicts the saint pierced by an arrow. He died during his return to Rome after years of exile.

Michelangelo Merisi da Caravaggio (1571-1610) revolutionized Baroque art through his unprecedented realism, dramatic tenebrism (high-contrast chiaroscuro), and unflinching depiction of ordinary people as saints and biblical figures, despite his turbulent personal life marked by violence and murder; his innovative techniques and raw authenticity profoundly influenced subsequent masters including Artemisia Gentileschi, Rembrandt, Rubens, Velázquez, and even modern filmmakers like Martin Scorsese.