Post #5947

Техники анимационной графики для создания реактивного света и теней в After Effects В этом уроке мы рассмотрим 5 различных методов создания динамических эффектов света и тени в After Effects, которые автоматически реагируют на положение источника света. ROTATION - POINT LIGHT var emitter = thisComp.layer("Emitter"); var myPos = thisLayer.toWorld(thisLayer.anchorPoint); var emitterPos = emitter.toWorld(emitter.anchorPoint); var delta = emitterPos - myPos; radiansToDegrees(Math.atan2(delta[1], delta[0])) ROTATION - DIRECTIONAL LIGHT var emitter = thisComp.layer("Emitter"); var destination = thisComp.layer("Destination"); var delta = destination.position - emitter.position; radiansToDegrees(Math.atan2(delta[1], delta[0])) BEVEL & EMBOSS ANGLE - POINT LIGHT var emitter = thisComp.layer("Emitter"); var myPos = thisLayer.toWorld(thisLayer.anchorPoint); var emitterPos = emitter.toWorld(emitter.anchorPoint); var delta = emitterPos - myPos; radiansToDegrees(Math.atan2(-delta[1], delta[0])) BEVEL & EMBOSS ANGLE - DIRECTIONAL LIGHT var emitter = thisComp.layer("Emitter"); var destination = thisComp.layer("Destination"); var delta = emitter.position - destination.position; radiansToDegrees(Math.atan2(-delta[1], delta[0])) DROP SHADOW DIRECTION - POINT LIGHT var emitter = thisComp.layer("Emitter"); var myPos = thisLayer.toWorld(thisLayer.anchorPoint); var emitterPos = emitter.toWorld(emitter.anchorPoint); var delta = myPos - emitterPos; radiansToDegrees(Math.atan2(delta[1], delta[0])) + 90 DROP SHADOW DIRECTION - DIRECTIONAL LIGHT var emitter = thisComp.layer("Emitter"); var destination = thisComp.layer("Destination"); var delta = destination.position - emitter.position; radiansToDegrees(Math.atan2(delta[1], delta[0])) + 90 POSITION OFFSET - POINT LIGHT var emitter = thisComp.layer("Emitter"); var shape = thisComp.layer("Shape A"); var distance = effect("Slider Control")("Slider"); var delta = shape.position - emitter.position; var angle = Math.atan2(delta[1], delta[0]); shape.position + [Math.cos(angle) * distance, Math.sin(angle) * distance] POSITION OFFSET - DIRECTIONAL LIGHT var emitter = thisComp.layer("Emitter"); var destination = thisComp.layer("Destination"); var shape = thisComp.layer("Shape A"); var distance = effect("Position Offset")("Slider"); var delta = destination.position - emitter.position; var angle = Math.atan2(delta[1], delta[0]); shape.position + [Math.cos(angle) * distance, Math.sin(angle) * distance] RADIAL BLUR CENTER - DIRECTIONAL LIGHT (Requires "Light Distance" slider to set emitter distance from layer, check out the tutorial file for this one) var emitter = thisComp.layer("Emitter"); var destination = thisComp.layer("Destination"); var positionOffset = effect("Position Offset")("Slider"); var lightDistance = effect("Light Distance")("Slider"); var delta = destination.position - emitter.position; var angle = Math.atan2(delta[1], delta[0]); #tutorial | Project | By olly