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Add multiview/stereoscopic rendering support to the clustered forward renderer

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Bastiaan Olij
2021-05-26 15:50:10 +10:00
parent 62765fb7ca
commit e4b7a69bb6
6 changed files with 127 additions and 31 deletions
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34
servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl
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@@ -99,6 +99,18 @@ layout(location = 8) out float dp_clip;
layout(location = 9) out flat uint instance_index_interp;
#ifdef USE_MULTIVIEW
#ifdef has_VK_KHR_multiview
#define ViewIndex gl_ViewIndex
#else // has_VK_KHR_multiview
// !BAS! This needs to become an input once we implement our fallback!
#define ViewIndex 0
#endif // has_VK_KHR_multiview
#else // USE_MULTIVIEW
// Set to zero, not supported in non stereo
#define ViewIndex 0
#endif //USE_MULTIVIEW
invariant gl_Position;
#GLOBALS
@@ -244,7 +256,13 @@ void main() {
vec4 position;
#endif
#ifdef USE_MULTIVIEW
mat4 projection_matrix = scene_data.projection_matrix_view[ViewIndex];
mat4 inv_projection_matrix = scene_data.inv_projection_matrix_view[ViewIndex];
#else
mat4 projection_matrix = scene_data.projection_matrix;
mat4 inv_projection_matrix = scene_data.inv_projection_matrix;
#endif //USE_MULTIVIEW
//using world coordinates
#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED)
@@ -421,10 +439,26 @@ layout(location = 8) in float dp_clip;
layout(location = 9) in flat uint instance_index_interp;
#ifdef USE_MULTIVIEW
#ifdef has_VK_KHR_multiview
#define ViewIndex gl_ViewIndex
#else // has_VK_KHR_multiview
// !BAS! This needs to become an input once we implement our fallback!
#define ViewIndex 0
#endif // has_VK_KHR_multiview
#else // USE_MULTIVIEW
// Set to zero, not supported in non stereo
#define ViewIndex 0
#endif //USE_MULTIVIEW
//defines to keep compatibility with vertex
#define world_matrix instances.data[instance_index].transform
#ifdef USE_MULTIVIEW
#define projection_matrix scene_data.projection_matrix_view[ViewIndex]
#else
#define projection_matrix scene_data.projection_matrix
#endif
#if defined(ENABLE_SSS) && defined(ENABLE_TRANSMITTANCE)
//both required for transmittance to be enabled

10
servers/rendering/renderer_rd/shaders/scene_forward_clustered_inc.glsl
View File

@@ -2,6 +2,7 @@
#define ROUGHNESS_MAX_LOD 5
#define MAX_VOXEL_GI_INSTANCES 8
#define MAX_VIEWS 2
#if defined(has_GL_KHR_shader_subgroup_ballot) && defined(has_GL_KHR_shader_subgroup_arithmetic)
@@ -12,6 +13,10 @@
#endif
#if defined(USE_MULTIVIEW) && defined(has_VK_KHR_multiview)
#extension GL_EXT_multiview : enable
#endif
#include "cluster_data_inc.glsl"
#include "decal_data_inc.glsl"
@@ -169,10 +174,13 @@ sdfgi;
layout(set = 1, binding = 0, std140) uniform SceneData {
mat4 projection_matrix;
mat4 inv_projection_matrix;
mat4 camera_matrix;
mat4 inv_camera_matrix;
// only used for multiview
mat4 projection_matrix_view[MAX_VIEWS];
mat4 inv_projection_matrix_view[MAX_VIEWS];
vec2 viewport_size;
vec2 screen_pixel_size;