How to draw a 3d painting course

The 3d painting tutorial is as follows:

Draw a rectangle, set the vanishing point O at the lower left of the rectangle, and then connect the four corners of the rectangle with the O point. So a plan view of Parallel perspective's cuboid is drawn. Draw a small square in the lower left corner of the square. So I drew a perspective view of a square axis. Draw a horizontal outline on the surface of the square shaft, and the outline intersects with the included angle line of the shaft (there are two intersections).

Then, starting from the intersection of the visible included angle lines, draw contour lines on another vertical axis surface. Next, draw a trapezoidal diagonal composed of contour lines and included angle lines, and then draw a parallel line of trapezoidal diagonal with the intersection of included angle lines as the starting point.

(Note: The trapezoid mentioned here is a visual figure formed by the equal-scale rectangular perspective phenomenon. Draw diagonal parallel lines, which is an equal-scale perspective view of a square. If you find it difficult to understand, just press the picture, and you will naturally understand what I mean in the following steps. ) Draw contour lines in the above way.

Draw other contours as described above. (Note: The contour lines are proportional, but the narrower they look because of perspective. Draw all contour lines as described above. ) Fix a point on the side of the square according to the desired proportion, and then connect the perspective vanishing O point.

(Note: The narrow sides of the rectangle here are not drawn to scale. If you want to draw in equal proportion, when drawing a rectangle in the first step, you must preset the proportion relationship of long paragraphs. )

Remove the auxiliary line and deepen the structural line of the shaft. Draw a plane at the bottom of the shaft and a pit. The included angle line of the bottom pit is connected with the vanishing point O to deepen the bottom hole structure line. Spread the background light and shade, and draw the gradient relationship. Continue to deduce the gradient relationship. Perfect the relationship between light and shade of the bottom axis plane and draw the axis in the axis.

Introduction to 3d painting:

Stereo painting is a painting made by using the stereoscopic vision phenomenon of human eyes. Ordinary paintings and photographic works, including computer-generated three-dimensional animation, only use the light and shadow of human eyes, light and shade, sense of reality and falsehood to obtain three-dimensional sense, but do not use the stereoscopic vision of eyes. One eye and two eyes are the same.