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Improve behaviour of clip_children by clipping

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to parent alpha value, but still retaining
parent color
This commit is contained in:
clayjohn 2022-10-06 15:27:11 -07:00
parent 926429392a
commit 09b1a6f85f
4 changed files with 71 additions and 9 deletions
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39
drivers/gles3/rasterizer_canvas_gles3.cpp
View File

@ -433,10 +433,10 @@ void RasterizerCanvasGLES3::canvas_render_items(RID p_to_render_target, Item *p_
_render_items(p_to_render_target, item_count, canvas_transform_inverse, p_light_list, starting_index, false);
item_count = 0;
Rect2i group_rect = ci->canvas_group_owner->global_rect_cache;
if (ci->canvas_group_owner->canvas_group->mode == RS::CANVAS_GROUP_MODE_OPAQUE) {
Rect2i group_rect = ci->canvas_group_owner->global_rect_cache;
texture_storage->render_target_copy_to_back_buffer(p_to_render_target, group_rect, false);
items[item_count++] = ci->canvas_group_owner;
} else if (!backbuffer_cleared) {
texture_storage->render_target_clear_back_buffer(p_to_render_target, Rect2i(), Color(0, 0, 0, 0));
backbuffer_cleared = true;
@ -544,9 +544,16 @@ void RasterizerCanvasGLES3::_render_items(RID p_to_render_target, int p_item_cou
}
RID material = ci->material_owner == nullptr ? ci->material : ci->material_owner->material;
if (material.is_null() && ci->canvas_group != nullptr) {
material = default_canvas_group_material;
if (ci->canvas_group != nullptr) {
if (ci->canvas_group->mode == RS::CANVAS_GROUP_MODE_OPAQUE) {
if (!p_to_backbuffer) {
material = default_clip_children_material;
}
} else {
if (material.is_null()) {
material = default_canvas_group_material;
}
}
}
GLES3::CanvasShaderData *shader_data_cache = nullptr;
@ -2074,6 +2081,26 @@ void fragment() {
material_storage->material_set_shader(default_canvas_group_material, default_canvas_group_shader);
}
{
default_clip_children_shader = material_storage->shader_allocate();
material_storage->shader_initialize(default_clip_children_shader);
material_storage->shader_set_code(default_clip_children_shader, R"(
// Default clip children shader.
shader_type canvas_item;
void fragment() {
vec4 c = textureLod(SCREEN_TEXTURE, SCREEN_UV, 0.0);
COLOR.rgb = c.rgb;
}
)");
default_clip_children_material = material_storage->material_allocate();
material_storage->material_initialize(default_clip_children_material);
material_storage->material_set_shader(default_clip_children_material, default_clip_children_shader);
}
default_canvas_texture = texture_storage->canvas_texture_allocate();
texture_storage->canvas_texture_initialize(default_canvas_texture);
@ -2086,6 +2113,8 @@ RasterizerCanvasGLES3::~RasterizerCanvasGLES3() {
material_storage->shaders.canvas_shader.version_free(data.canvas_shader_default_version);
material_storage->material_free(default_canvas_group_material);
material_storage->shader_free(default_canvas_group_shader);
material_storage->material_free(default_clip_children_material);
material_storage->shader_free(default_clip_children_shader);
singleton = nullptr;
glDeleteBuffers(1, &data.canvas_quad_vertices);

2
drivers/gles3/rasterizer_canvas_gles3.h
View File

@ -284,6 +284,8 @@ public:
RID default_canvas_texture;
RID default_canvas_group_material;
RID default_canvas_group_shader;
RID default_clip_children_material;
RID default_clip_children_shader;
typedef void Texture;

37
servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp
View File

@ -1111,8 +1111,16 @@ void RendererCanvasRenderRD::_render_items(RID p_to_render_target, int p_item_co
RID material = ci->material_owner == nullptr ? ci->material : ci->material_owner->material;
if (material.is_null() && ci->canvas_group != nullptr) {
material = default_canvas_group_material;
if (ci->canvas_group != nullptr) {
if (ci->canvas_group->mode == RS::CANVAS_GROUP_MODE_OPAQUE) {
if (!p_to_backbuffer) {
material = default_clip_children_material;
}
} else {
if (material.is_null()) {
material = default_canvas_group_material;
}
}
}
if (material != prev_material) {
@ -1437,10 +1445,10 @@ void RendererCanvasRenderRD::canvas_render_items(RID p_to_render_target, Item *p
_render_items(p_to_render_target, item_count, canvas_transform_inverse, p_light_list);
item_count = 0;
Rect2i group_rect = ci->canvas_group_owner->global_rect_cache;
if (ci->canvas_group_owner->canvas_group->mode == RS::CANVAS_GROUP_MODE_OPAQUE) {
Rect2i group_rect = ci->canvas_group_owner->global_rect_cache;
texture_storage->render_target_copy_to_back_buffer(p_to_render_target, group_rect, false);
items[item_count++] = ci->canvas_group_owner;
} else if (!backbuffer_cleared) {
texture_storage->render_target_clear_back_buffer(p_to_render_target, Rect2i(), Color(0, 0, 0, 0));
backbuffer_cleared = true;
@ -2738,6 +2746,24 @@ void fragment() {
material_storage->material_set_shader(default_canvas_group_material, default_canvas_group_shader);
}
{
default_clip_children_shader = material_storage->shader_allocate();
material_storage->shader_initialize(default_clip_children_shader);
material_storage->shader_set_code(default_clip_children_shader, R"(
// Default clip children shader.
shader_type canvas_item;
void fragment() {
vec4 c = textureLod(SCREEN_TEXTURE, SCREEN_UV, 0.0);
COLOR.rgb = c.rgb;
}
)");
default_clip_children_material = material_storage->material_allocate();
material_storage->material_initialize(default_clip_children_material);
material_storage->material_set_shader(default_clip_children_material, default_clip_children_shader);
}
static_assert(sizeof(PushConstant) == 128);
}
@ -2789,6 +2815,9 @@ RendererCanvasRenderRD::~RendererCanvasRenderRD() {
material_storage->material_free(default_canvas_group_material);
material_storage->shader_free(default_canvas_group_shader);
material_storage->material_free(default_clip_children_material);
material_storage->shader_free(default_clip_children_shader);
{
if (state.canvas_state_buffer.is_valid()) {
RD::get_singleton()->free(state.canvas_state_buffer);

2
servers/rendering/renderer_rd/renderer_canvas_render_rd.h
View File

@ -421,6 +421,8 @@ class RendererCanvasRenderRD : public RendererCanvasRender {
RID default_canvas_group_shader;
RID default_canvas_group_material;
RID default_clip_children_material;
RID default_clip_children_shader;
RS::CanvasItemTextureFilter default_filter = RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR;
RS::CanvasItemTextureRepeat default_repeat = RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED;