EG/RenderPipelineFile/rpcore/shader/flag_used_cells.frag.glsl
2025-07-24 11:37:46 +08:00

51 lines
1.8 KiB
GLSL

/**
*
* RenderPipeline
*
* Copyright (c) 2014-2016 tobspr <tobias.springer1@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#version 430
#pragma include "render_pipeline_base.inc.glsl"
#pragma include "includes/light_culling.inc.glsl"
#pragma include "includes/transforms.inc.glsl"
#define USE_GBUFFER_EXTENSIONS 1
#pragma include "includes/gbuffer.inc.glsl"
uniform writeonly image2DArray RESTRICT cellGridFlags;
void main() {
vec2 texcoord = get_texcoord();
// Get the distance to the camera
vec3 surf_pos = get_world_pos_at(texcoord);
float surf_dist = distance(MainSceneData.camera_pos, surf_pos);
// Find the affected cell
ivec3 tile = get_lc_cell_index(ivec2(gl_FragCoord.xy), surf_dist);
// Mark the cell as used
imageStore(cellGridFlags, tile, vec4(1));
}