Adaptive Resolution Dynamic Visualization Method of Interactive 3D Flow Field Based on GPU
A three-dimensional flow field, self-adaptive technology, applied in the field of scientific computing visualization, can solve the problems that the internal structure of the three-dimensional flow field cannot be expressed, the visualization of the three-dimensional flow field is not applicable, and it is difficult to achieve real-time interaction, etc., so as to achieve the effect of convenient observation and understanding
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[0018] The invention distributes particles evenly and densely in the viewing volume, renders the far and near planes of the data volume to correct the sprinkle point position, samples the velocity field to drive the particle movement, and creates a probability density map to control the particle distribution; by integrating in Tessellation Shader based on the particle The position extends out of the streamlines. Include the following steps:
[0019] 1. Render the near and far planes of the data volume into textures
[0020] The data volume is generated according to the data range, and the outer and inner surfaces of the data volume are respectively rendered to obtain the near plane and the far plane of the data volume. The depth value of each pixel in the frustum is the distance from the near clipping plane. Divide this depth value by the vertical distance between the far and near clipping planes and store the result as a color value. Obtain two textures of the far and near ...
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