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Vertex and attribute compression to reduce the size of the vertex format.

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This allows Godot to automatically compress meshes to save a lot of bandwidth.

In general, this requires no interaction from the user and should result in
no noticable quality loss.

This scheme is not backwards compatible, so we have provided an upgrade
mechanism, and a mesh versioning mechanism.

Existing meshes can still be used as a result, but users can get a
performance boost by reimporting assets.
This commit is contained in:
clayjohn
2023-08-29 21:04:32 +02:00
parent d31794c4a2
commit 51ed3aef63
59 changed files with 1752 additions and 670 deletions
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11
drivers/vulkan/rendering_device_vulkan.cpp
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@@ -4499,6 +4499,7 @@ RID RenderingDeviceVulkan::vertex_array_create(uint32_t p_vertex_count, VertexFo
if (atf.frequency == VERTEX_FREQUENCY_VERTEX) {
// Validate size for regular drawing.
uint64_t total_size = uint64_t(atf.stride) * (p_vertex_count - 1) + atf.offset + element_size;
ERR_FAIL_COND_V_MSG(total_size > buffer->size, RID(),
"Attachment (" + itos(i) + ") will read past the end of the buffer.");
@@ -4665,7 +4666,7 @@ struct RenderingDeviceVulkanShaderBinarySpecializationConstant {
};
struct RenderingDeviceVulkanShaderBinaryData {
uint32_t vertex_input_mask;
uint64_t vertex_input_mask;
uint32_t fragment_output_mask;
uint32_t specialization_constants_count;
uint32_t is_compute;
@@ -4881,7 +4882,7 @@ RID RenderingDeviceVulkan::shader_create_from_bytecode(const Vector<uint8_t> &p_
push_constant.size = binary_data.push_constant_size;
push_constant.vk_stages_mask = binary_data.push_constant_vk_stages_mask;
uint32_t vertex_input_mask = binary_data.vertex_input_mask;
uint64_t vertex_input_mask = binary_data.vertex_input_mask;
uint32_t fragment_output_mask = binary_data.fragment_output_mask;
@@ -5209,7 +5210,7 @@ RID RenderingDeviceVulkan::shader_create_placeholder() {
return shader_owner.make_rid(shader);
}
uint32_t RenderingDeviceVulkan::shader_get_vertex_input_attribute_mask(RID p_shader) {
uint64_t RenderingDeviceVulkan::shader_get_vertex_input_attribute_mask(RID p_shader) {
_THREAD_SAFE_METHOD_
const Shader *shader = shader_owner.get_or_null(p_shader);
@@ -6152,8 +6153,8 @@ RID RenderingDeviceVulkan::render_pipeline_create(RID p_shader, FramebufferForma
pipeline_vertex_input_state_create_info = vd.create_info;
// Validate with inputs.
for (uint32_t i = 0; i < 32; i++) {
if (!(shader->vertex_input_mask & (1UL << i))) {
for (uint64_t i = 0; i < 64; i++) {
if (!(shader->vertex_input_mask & (1ULL << i))) {
continue;
}
bool found = false;