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Implement global and per instance shader uniforms.

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Adds two keywords to shader language for uniforms:
-'global'
-'instance'

This allows them to reference values outside the material.
This commit is contained in:
Juan Linietsky
2020-04-16 23:52:00 -03:00
parent 30ab5c9baa
commit 0e1c66d9fc
49 changed files with 3124 additions and 69 deletions
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32
servers/rendering/rasterizer_rd/rasterizer_scene_high_end_rd.cpp
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@@ -378,6 +378,10 @@ void RasterizerSceneHighEndRD::ShaderData::get_param_list(List<PropertyInfo> *p_
for (Map<StringName, ShaderLanguage::ShaderNode::Uniform>::Element *E = uniforms.front(); E; E = E->next()) {
if (E->get().scope != ShaderLanguage::ShaderNode::Uniform::SCOPE_LOCAL) {
continue;
}
if (E->get().texture_order >= 0) {
order[E->get().texture_order + 100000] = E->key();
} else {
@@ -393,6 +397,23 @@ void RasterizerSceneHighEndRD::ShaderData::get_param_list(List<PropertyInfo> *p_
}
}
void RasterizerSceneHighEndRD::ShaderData::get_instance_param_list(List<RasterizerStorage::InstanceShaderParam> *p_param_list) const {
for (Map<StringName, ShaderLanguage::ShaderNode::Uniform>::Element *E = uniforms.front(); E; E = E->next()) {
if (E->get().scope != ShaderLanguage::ShaderNode::Uniform::SCOPE_INSTANCE) {
continue;
}
RasterizerStorage::InstanceShaderParam p;
p.info = ShaderLanguage::uniform_to_property_info(E->get());
p.info.name = E->key(); //supply name
p.index = E->get().instance_index;
p.default_value = ShaderLanguage::constant_value_to_variant(E->get().default_value, E->get().type, E->get().hint);
p_param_list->push_back(p);
}
}
bool RasterizerSceneHighEndRD::ShaderData::is_param_texture(const StringName &p_param) const {
if (!uniforms.has(p_param)) {
return false;
@@ -828,6 +849,7 @@ void RasterizerSceneHighEndRD::_fill_instances(RenderList::Element **p_elements,
store_transform(Transform(e->instance->transform.basis.inverse().transposed()), id.normal_transform);
id.flags = 0;
id.mask = e->instance->layer_mask;
id.instance_uniforms_ofs = e->instance->instance_allocated_shader_parameters_offset >= 0 ? e->instance->instance_allocated_shader_parameters_offset : 0;
if (e->instance->base_type == RS::INSTANCE_MULTIMESH) {
id.flags |= INSTANCE_DATA_FLAG_MULTIMESH;
@@ -2701,6 +2723,14 @@ void RasterizerSceneHighEndRD::_update_render_base_uniform_set() {
uniforms.push_back(u);
}
{
RD::Uniform u;
u.type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 16;
u.ids.push_back(storage->global_variables_get_storage_buffer());
uniforms.push_back(u);
}
render_base_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, SCENE_UNIFORM_SET);
}
}
@@ -3077,6 +3107,8 @@ RasterizerSceneHighEndRD::RasterizerSceneHighEndRD(RasterizerStorageRD *p_storag
actions.default_filter = ShaderLanguage::FILTER_LINEAR_MIPMAP;
actions.default_repeat = ShaderLanguage::REPEAT_ENABLE;
actions.global_buffer_array_variable = "global_variables.data";
actions.instance_uniform_index_variable = "instances.data[instance_index].instance_uniforms_ofs";
shader.compiler.initialize(actions);
}