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Merge pull request #99551 from DarioSamo/fragment-density-map

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Implement Fragment density map support.
This commit is contained in:
Rémi Verschelde
2025-03-28 14:31:19 +01:00
parent aeeea52a93 76d709be74
commit 408d07109b
21 changed files with 738 additions and 360 deletions
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30
servers/rendering/renderer_rd/effects/vrs.cpp
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@@ -44,6 +44,8 @@ VRS::VRS() {
Vector<String> vrs_modes;
vrs_modes.push_back("\n"); // VRS_DEFAULT
vrs_modes.push_back("\n#define USE_MULTIVIEW\n"); // VRS_MULTIVIEW
vrs_modes.push_back("\n#define SPLIT_RG\n"); // VRS_RG
vrs_modes.push_back("\n#define SPLIT_RG\n#define USE_MULTIVIEW\n"); // VRS_RG_MULTIVIEW
vrs_shader.shader.initialize(vrs_modes);
@@ -80,14 +82,16 @@ void VRS::copy_vrs(RID p_source_rd_texture, RID p_dest_framebuffer, bool p_multi
RD::Uniform u_source_rd_texture(RD::UNIFORM_TYPE_SAMPLER_WITH_TEXTURE, 0, Vector<RID>({ default_sampler, p_source_rd_texture }));
int mode = 0;
VRSPushConstant push_constant = {};
int mode = p_multiview ? VRS_MULTIVIEW : VRS_DEFAULT;
// Set maximum texel factor based on maximum fragment size, some GPUs do not support 8x8 (fragment shading rate approach).
if (MIN(RD::get_singleton()->limit_get(RD::LIMIT_VRS_MAX_FRAGMENT_WIDTH), RD::get_singleton()->limit_get(RD::LIMIT_VRS_MAX_FRAGMENT_HEIGHT)) > 4) {
push_constant.max_texel_factor = 3.0;
bool uses_rg_format = RD::get_singleton()->vrs_get_format() == RD::DATA_FORMAT_R8G8_UNORM;
if (uses_rg_format) {
mode = p_multiview ? VRS_RG_MULTIVIEW : VRS_RG;
} else {
mode = p_multiview ? VRS_MULTIVIEW : VRS_DEFAULT;
// Default to 4x4 as it's not possible to query the max fragment size from RenderingDevice. This can be improved to use the largest size
// available if this code is moved over to RenderingDevice at some point.
push_constant.max_texel_factor = 2.0;
}
@@ -103,18 +107,8 @@ void VRS::copy_vrs(RID p_source_rd_texture, RID p_dest_framebuffer, bool p_multi
}
Size2i VRS::get_vrs_texture_size(const Size2i p_base_size) const {
int32_t texel_width = RD::get_singleton()->limit_get(RD::LIMIT_VRS_TEXEL_WIDTH);
int32_t texel_height = RD::get_singleton()->limit_get(RD::LIMIT_VRS_TEXEL_HEIGHT);
int width = p_base_size.x / texel_width;
if (p_base_size.x % texel_width != 0) {
width++;
}
int height = p_base_size.y / texel_height;
if (p_base_size.y % texel_height != 0) {
height++;
}
return Size2i(width, height);
Size2i vrs_texel_size = RD::get_singleton()->vrs_get_texel_size();
return Size2i((p_base_size.x + vrs_texel_size.x - 1) / vrs_texel_size.x, (p_base_size.y + vrs_texel_size.y - 1) / vrs_texel_size.y);
}
void VRS::update_vrs_texture(RID p_vrs_fb, RID p_render_target) {