Lumion snow view how did I miss so many details?

2022-06-24 0 By

Active in the Lumion plate and reward rendering activities of the old gun son CXM2 tutorial!Today he bring Lumion snow bird’s eye view rendering techniques to quickly have a look at today’s case ▼ one of Olympic Games “ice ribbons general steps to design – set – light – color – late, hope everyone to lightweight, which works with which, the lines, don’t tangle, final results oriented, it is good to achieve a goal.Mainly rely on rendering software to complete the majority of the work, the latter for a little effect is not detailed.01 Observation and Conception By observing the model to understand the characteristics of the building, preliminary judgment which Angle is the best expression;At the same time, what kind of environment the building is located in is conducive to the subsequent creation.This step is the beginning of creation needs to focus on, directly guide the subsequent creation of guidance.Through analysis, I’d like to take a bird’s eye view of the early morning light and snow.Scene 02 Building ice ribbon as an important public sports facility for the Winter Olympics, I think it would be better to be located in the city.SketchUp was used to quickly map the road network, the general site area, and the concrete landscape surrounding the ice ribbon.Don’t neglect the in-depth characterization of surrounding scenes.The significance of scene depiction lies in that it can set off the architectural atmosphere in a favorable way, make the subsequent rendering become basis to follow, reduce the difficulty of subsequent rendering and setting, and avoid the disadvantages of empty space with a large number of trees.(Since there is no content, refinement is more content and more credibility.)Import the Lumion. Enter the Lumion interface and import the model. At this time, we are still observing and concretize the previous analysis.Take a look around and check if there are any errors in the model, if it needs to be reworked, if the desired Angle needs to be corrected.As the rendering progresses, I usually revise the model and update it.If it’s all right, set some angles and solidify.As we all know, “light” is an important means to depict architecture, is the foundation of all creation, so it is particularly important.A The first step is to create an HDR environment for the real sky, to see whether the atmosphere is in line with the previous pre-conceived idea.As a bird’s eye view of the early morning light and snow, and considering the glass on the top and sides of the building, I will give a real sky with rich contrast between cold and warm. At this time, the glass is bright and dark, and the cold and warm are rich.(The content of the glass, the truth, is the content of the reflection.)B The second step is the sun.Follow someone say isn’t there brightness and darkness for the real sky and sun?In fact, the adjustment of solar parameters can obtain more delicate details of light and shade, bringing a ray of light and warm color to the scene.And because of the role of sunlight, the following other special effects of the range of change more intense, so in most cases is necessary.Strategies for a big bird’s eye view, show brightness parameters for sunlight need to increase until “light perception” is appropriate. How do you call it appropriate?It’s about meeting the expectations of what was conceived.The sunlight comes from the upper left corner, so it is better to get a certain proportion of the dark part. According to the actual characteristics of the model, the picture is rich in layers.C Third step shadow, first turn on soft shadow, then adjust the sun shadow range until the shadow sawtooth disappears and no details are missing, then change to outdoor.Since it was a distant view, I wanted the following trees to have a more pronounced orb effect, so the fine detail shadows were turned off.According to the situation, the shadow brightness do moderate dimming.At this point, the overall light effect of the map is roughly clear.D The fourth step is sky light, which has two parameters, namely brightness and saturation.Sky light affects saturation through brightness, which in turn affects the light environment.Strategies for Brightness When the brightness of the sky gradually increases, the saturation effect of the sky light gradually becomes strong.However, when the brightness is constant, adjusting the sky light saturation will have a relatively small change, because even when the saturation is 0, the HDRI sky map itself contains light and color information, which will also affect the light environment.Strategies therefore maintain saturation defaults and adjust the brightness parameters of the sky light until appropriate, how do you call appropriate?Be close to the expectations of your previous conception.Although the preview of sky light is not very intuitive, the addition of sky light greatly enhances the HDR atmosphere of the whole image.After adding sky light, we found that the original overly yellow sunlight was much more realistic after being filtered by sky light, and the effect was more three-dimensional than pure sky light.E Step 5: Code reflection, ultra light, sharpness, bleach, flood, lens flare.Strategies for Reflection Effects Be sure to open speedray since the ice ribbon is a curved surface and for distant vision add a surface and some obviously strange places for the reflection surface OK follow your lead for the rest.Bleaching affects the whiteness of an image, the natural world is not all bright, there is a certain whiteness, add a point to enhance the truthfulness and enhance the sketch relationship of the image.So slide the slider a little bit to stop without losing color.Follow a strategy for super-light How much light is reflected from the area below the divergence of light from the dark area Choose the default as it is a vision.Strategies for a bird’s eye view I choose to pull straight for my preference.Show light one of the effects for enhancing light sensation, slide the slider to stop the vision for ideas.Using lens flare wisely adds atmosphere to a picture. We look at photography and TV shows through the lens, so using lens flare wisely will make your show real to your audience.I adjust the main brightness, the number of blooms, and split the bright pixels to get a flood like overlay.At this time, the overall light effect of the map is greatly enriched.F Step 6: Fog. After a series of special effects, it’s time to add fog.I use all four options of fog.Of course, the most necessary is fog density and attenuation.This requires a very clear understanding of the dialectical relationship between the two, one counterweight, with the use of a little difficult.The final adjustment is to achieve an even, deep sense of space.Of course, do a bird’s eye view can also be fog, but I think fog is also dimming, there is a small difference that can not be achieved later.06 Scenery, lighting and thinning material A scenery this step I put between dimming and toning, in fact, it doesn’t matter, do it first can also.Tree shape selection of strong sense of the ball, leaves have a sense of clusters, a certain degree of hollow, and the tree shape is not too strange.The following is the selection and effect of some trees. Since I want to make snow scene, this kind of trees is the most suitable.In principle, it is better to cover the bottom of the building.B lighting first through dimming effects, we got soft shadows, dyeing, warm and cold relationship, ultra light, omnishadow, that’s not enough.I feel that adding some artificial light according to the use function and space characteristics will increase a certain degree of richness and credibility, because the snow scenery will appear too pale and cold overall color, some warm artificial light will make a certain supplement in the “warm” color area of the overall tone.Because want to do snow scene, want to add a little precipitation of course.After an operation, form the following effect: but, no snow tree, means less precipitation amount plus, then increase the amount of precipitation to the tree there is snow, results are as follows: as you can see, the tree with snow, but very messy, is dirty, body building and the surrounding environment is completely covered by snow, lost a lot of details, visible by precipitation to do is not enough to have a bird’s eye view of the snow.How to solve it?Keep it in suspense!Let’s change the color first!07 Toning color correction, the purpose is to adjust the overall picture of warm and cold relationship, contrast, saturation, threshold and so on.Because I want to do the morning light of the bird’s eye view of the snow, the assumption should be a fresh cold tone, is a cold gray tone.So a little bit colder, a little bit purplish, a little bit stiffer with the contrast enhancement, and I usually don’t adjust the gamma directly, but I adjust the upper and lower limits, which gives me more flexibility.There was no color adjustment for the trees because it was less important to do snow cover.Usually, the color area of trees is relatively large, which needs to be adjusted. It can be adjusted through the built-in functions of rendering software or later.And then a simulated color lab, which is actually Lumion’s own filter, to unify the colors.Here I think 1.1 is ok, the value is 0.4, to make the cold cooler and the warm warmer.The effect is as follows: all the required effects are added, check the upper channel output to see!So, as mentioned above, the snow scene has not been finished, and the effect of bird’s eye view is not good. How to solve the problem of hanging snow from the tree tops?Please go through the layer control command first and leave only the tree layer!Export with channel.(this doesn’t take much time) get the image and store it in a folder along with the previous renderings and channel drawings.08 later, the previous renderings and channel drawings will be imported into Ps.Lighting channels enhance the contrast between light and dark to make the picture clearer, but also give a certain relationship between cold and warm.Use soft light mix, due to Lighting channel map overlay color tends to be cold!Can also make the map black and white contrast is too large like black and white map, loss of color.So be sure to adjust the opacity and mask it further, my experience is to mix Lighting a little bit to get the effect.Specular channel can enhance the reflection effect, using a filter blend, to avoid distortion, I also mixed a little.Personally, I prefer to adjust the effect freely through the mask like hand painting.As mentioned above, how to do with snow hanging on the tree tops?Available “channel snow making” method!Very simple!With selection-Color range, select the large orange area of the tree layer channel graph that was previously exported separately, and then invert it to get the selection of the tree at a stroke.Using this selection, the Lighting channel layer exported during drawing replicates the part of the tree.Just place it on top of the original layer and the beautiful trees will appear!Because of the Lighting channel, there is no loss or even enhancement of light information, tree form information!And you can use the layer of color adjustment to adjust the snow snow small, use mask to further adjust where deep where shallow.Be careful to use a mask to paint out unwanted parts of the tree that overlap with the building.(after the check actually also fell, does not hurt the elegant will not change) treetops hanging snow a little less: treetops hanging snow a little more: “channel snow” method and “precipitation snow” method one of the local comparison: visible “channel snow” method tree details increased, full.The black death caused by the precipitation effect has been reduced, the color has been enriched, and the relationship between the light and shade of the trees has been clarified.The way was revealed.Local comparison between the “channel snow making” method and the “precipitation snow making” method ii: it can be seen that the site details of the “channel snow making” method are still retained, and the shadow information is not lost.Then enter CameraRaw for further adjustment.Adjust some necessary items according to the actual situation.Adjust the lighting and darks.Finally point a highlight to mention, “bright Angle” a key to do fog.Figure.The early morning light, white snow bird’s eye view is almost complete.The course is over. 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