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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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30
servers/rendering/rasterizer_rd/rasterizer_canvas_rd.cpp
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@ -618,6 +618,14 @@ void RasterizerCanvasRD::_render_item(RD::DrawListID p_draw_list, const Item *p_
}
}
{
RD::Uniform u;
u.type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 7;
u.ids.push_back(storage->global_variables_get_storage_buffer());
uniforms.push_back(u);
}
//validate and update lighs if they are being used
if (light_count > 0) {
@ -2012,6 +2020,9 @@ void RasterizerCanvasRD::ShaderData::get_param_list(List<PropertyInfo> *p_param_
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 {
@ -2027,6 +2038,23 @@ void RasterizerCanvasRD::ShaderData::get_param_list(List<PropertyInfo> *p_param_
}
}
void RasterizerCanvasRD::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 RasterizerCanvasRD::ShaderData::is_param_texture(const StringName &p_param) const {
if (!uniforms.has(p_param)) {
return false;
@ -2366,6 +2394,8 @@ RasterizerCanvasRD::RasterizerCanvasRD(RasterizerStorageRD *p_storage) {
actions.default_repeat = ShaderLanguage::REPEAT_DISABLE;
actions.base_varying_index = 4;
actions.global_buffer_array_variable = "global_variables.data";
shader.compiler.initialize(actions);
}