Method for generating firework visual effect, electronic device, and storage medium

An electronic device, comprising:

• a memory, configured to store computer-executable instructions in a non-transitory manner;
• and
• a processor, configured to run computer-executable instructions,
• wherein the computer-executable instructions, when run by the processor, implement a method for generating the firework visual effect,
• wherein the firework visual effect comprises a firework center and a firework trail, the method comprises:
• determining a visual effect trajectory;
• based on the visual effect trajectory, generating a firework particle set and a trail particle set in a three-dimension space for generating the firework visual effect, wherein the firework particle set is used for generating the firework center, and the trail particle set is used for generating the firework trail;
• rendering the firework particle set, to obtain a firework particle primitive model set;
• rendering the trail particle set, to obtain a trail particle primitive model set, wherein the trail particle primitive model set comprises a plurality of trail particle primitive models;
• superimposing the firework particle primitive model set and the trail particle primitive model set, to generate the firework visual effect,
• wherein at least some trail particle primitive models among the plurality of trail particle primitive models are displayed for at least a preset duration;
• wherein the determining a visual effect trajectory comprises:
• determining a visual trajectory point;
• and
• determining the visual effect trajectory according to a movement of the visual trajectory point;
• wherein the determining a visual trajectory point, comprises:
• acquiring a video to be processed;
• detecting a target object in the video to be processed;
• recognizing a feature point on the target object, and taking the feature point as the visual trajectory point;
• wherein the method further comprises:
• in response to the feature point moving out of the video to be processed, according to an order in which the plurality of trail particles are generated, sequentially adjusting particle lifetimes of at least some trail particles corresponding to the at least some trail particle primitive models, or sequentially adjusting transparency of the at least some trail particle primitive models to fully transparent, so as to make the firework trail gradually disappear.

A non-transitory computer-readable storage medium, wherein, the non-transitory computer-readable storage medium stores computer-executable instructions, and when executed by the processor, the computer-executable instructions implement a method for generating the firework visual effect,

• wherein the firework visual effect comprises a firework center and a firework trail, the method comprises:
• determining a visual effect trajectory;
• based on the visual effect trajectory, generating a firework particle set and a trail particle set in a three-dimension space for generating the firework visual effect, wherein the firework particle set is used for generating the firework center, and the trail particle set is used for generating the firework trail;
• rendering the firework particle set, to obtain a firework particle primitive model set;
• rendering the trail particle set, to obtain a trail particle primitive model set, wherein the trail particle primitive model set comprises a plurality of trail particle primitive models;
• superimposing the firework particle primitive model set and the trail particle primitive model set, to generate the firework visual effect,
• wherein at least some trail particle primitive models among the plurality of trail particle primitive models are displayed for at least a preset duration;
• wherein the determining a visual effect trajectory comprises:
• determining a visual trajectory point;
• and
• determining the visual effect trajectory according to a movement of the visual trajectory point;
• wherein the determining a visual trajectory point, comprises:
• acquiring a video to be processed;
• detecting a target object in the video to be processed;
• recognizing a feature point on the target object, and taking the feature point as the visual trajectory point;
• wherein the method further comprises:
• in response to the feature point moving out of the video to be processed, according to an order in which the plurality of trail particles are generated, sequentially adjusting particle lifetimes of at least some trail particles corresponding to the at least some trail particle primitive models, or sequentially adjusting transparency of the at least some trail particle primitive models to fully transparent, so as to make the firework trail gradually disappear.