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Apply reprojection in multiview for our cluster lookup

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This commit is contained in:
Bastiaan Olij
2023-06-21 10:59:12 +10:00
parent 329652b6fe
commit 952b4b3f38
2 changed files with 14 additions and 2 deletions
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11
servers/rendering/renderer_rd/shaders/forward_clustered/scene_forward_clustered.glsl
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@@ -735,6 +735,10 @@ void fragment_shader(in SceneData scene_data) {
#ifdef USE_MULTIVIEW
vec3 eye_offset = scene_data.eye_offset[ViewIndex].xyz;
vec3 view = -normalize(vertex_interp - eye_offset);
// UV in our combined frustum space is used for certain screen uv processes where it's
// overkill to render separate left and right eye views
vec2 combined_uv = (combined_projected.xy / combined_projected.w) * 0.5 + 0.5;
#else
vec3 eye_offset = vec3(0.0, 0.0, 0.0);
vec3 view = -normalize(vertex_interp);
@@ -921,8 +925,7 @@ void fragment_shader(in SceneData scene_data) {
if (implementation_data.volumetric_fog_enabled) {
#ifdef USE_MULTIVIEW
vec2 center_uv = (combined_projected.xy / combined_projected.w) * 0.5 + 0.5;
vec4 volumetric_fog = volumetric_fog_process(center_uv, -vertex.z);
vec4 volumetric_fog = volumetric_fog_process(combined_uv, -vertex.z);
#else
vec4 volumetric_fog = volumetric_fog_process(screen_uv, -vertex.z);
#endif
@@ -952,7 +955,11 @@ void fragment_shader(in SceneData scene_data) {
#ifndef MODE_RENDER_DEPTH
#ifdef USE_MULTIVIEW
uvec2 cluster_pos = uvec2(combined_uv.xy / scene_data.screen_pixel_size) >> implementation_data.cluster_shift;
#else
uvec2 cluster_pos = uvec2(gl_FragCoord.xy) >> implementation_data.cluster_shift;
#endif
uint cluster_offset = (implementation_data.cluster_width * cluster_pos.y + cluster_pos.x) * (implementation_data.max_cluster_element_count_div_32 + 32);
uint cluster_z = uint(clamp((-vertex.z / scene_data.z_far) * 32.0, 0.0, 31.0));