godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-15 13:51:40 +00:00
Code Releases Wiki Activity

Alpha Hash and Alpha2Coverage Implementation

Browse Source
This commit is contained in:
Marios Staikopoulos
2020-07-13 01:27:01 -07:00
parent 0b910cd8b7
commit e5d7c7d5fc
8 changed files with 434 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
servers/rendering/rasterizer_rd/rasterizer_scene_high_end_rd.cpp
View File

@@ -51,6 +51,7 @@ void RasterizerSceneHighEndRD::ShaderData::set_code(const String &p_code) {
int blend_mode = BLEND_MODE_MIX;
int depth_testi = DEPTH_TEST_ENABLED;
int alpha_antialiasing_mode = ALPHA_ANTIALIASING_OFF;
int cull = CULL_BACK;
uses_point_size = false;
@@ -82,6 +83,9 @@ void RasterizerSceneHighEndRD::ShaderData::set_code(const String &p_code) {
actions.render_mode_values["blend_sub"] = Pair<int *, int>(&blend_mode, BLEND_MODE_SUB);
actions.render_mode_values["blend_mul"] = Pair<int *, int>(&blend_mode, BLEND_MODE_MUL);
actions.render_mode_values["alpha_to_coverage"] = Pair<int *, int>(&alpha_antialiasing_mode, ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE);
actions.render_mode_values["alpha_to_coverage_and_one"] = Pair<int *, int>(&alpha_antialiasing_mode, ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE);
actions.render_mode_values["depth_draw_never"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_DISABLED);
actions.render_mode_values["depth_draw_opaque"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_OPAQUE);
actions.render_mode_values["depth_draw_always"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_ALWAYS);
@@ -154,6 +158,11 @@ void RasterizerSceneHighEndRD::ShaderData::set_code(const String &p_code) {
//blend modes
// if any form of Alpha Antialiasing is enabled, set the blend mode to alpha to coverage
if (alpha_antialiasing_mode != ALPHA_ANTIALIASING_OFF) {
blend_mode = BLEND_MODE_ALPHA_TO_COVERAGE;
}
RD::PipelineColorBlendState::Attachment blend_attachment;
switch (blend_mode) {
@@ -199,6 +208,15 @@ void RasterizerSceneHighEndRD::ShaderData::set_code(const String &p_code) {
blend_attachment.dst_alpha_blend_factor = RD::BLEND_FACTOR_ZERO;
uses_blend_alpha = true; //force alpha used because of blend
} break;
case BLEND_MODE_ALPHA_TO_COVERAGE: {
blend_attachment.enable_blend = true;
blend_attachment.alpha_blend_op = RD::BLEND_OP_ADD;
blend_attachment.color_blend_op = RD::BLEND_OP_ADD;
blend_attachment.src_color_blend_factor = RD::BLEND_FACTOR_SRC_ALPHA;
blend_attachment.dst_color_blend_factor = RD::BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blend_attachment.src_alpha_blend_factor = RD::BLEND_FACTOR_ONE;
blend_attachment.dst_alpha_blend_factor = RD::BLEND_FACTOR_ZERO;
}
}
RD::PipelineColorBlendState blend_state_blend;
@@ -245,8 +263,17 @@ void RasterizerSceneHighEndRD::ShaderData::set_code(const String &p_code) {
RD::PipelineColorBlendState blend_state;
RD::PipelineDepthStencilState depth_stencil = depth_stencil_state;
RD::PipelineMultisampleState multisample_state;
if (uses_alpha || uses_blend_alpha) {
// only allow these flags to go through if we have some form of msaa
if (alpha_antialiasing_mode == ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE) {
multisample_state.enable_alpha_to_coverage = true;
} else if (alpha_antialiasing_mode == ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE) {
multisample_state.enable_alpha_to_coverage = true;
multisample_state.enable_alpha_to_one = true;
}
if (k == SHADER_VERSION_COLOR_PASS || k == SHADER_VERSION_COLOR_PASS_WITH_FORWARD_GI || k == SHADER_VERSION_LIGHTMAP_COLOR_PASS) {
blend_state = blend_state_blend;
if (depth_draw == DEPTH_DRAW_OPAQUE) {
@@ -286,7 +313,7 @@ void RasterizerSceneHighEndRD::ShaderData::set_code(const String &p_code) {
}
RID shader_variant = scene_singleton->shader.scene_shader.version_get_shader(version, k);
pipelines[i][j][k].setup(shader_variant, primitive_rd, raster_state, RD::PipelineMultisampleState(), depth_stencil, blend_state, 0);
pipelines[i][j][k].setup(shader_variant, primitive_rd, raster_state, multisample_state, depth_stencil, blend_state, 0);
}
}
}
@@ -2725,6 +2752,11 @@ RasterizerSceneHighEndRD::RasterizerSceneHighEndRD(RasterizerStorageRD *p_storag
actions.renames["POINT_SIZE"] = "gl_PointSize";
actions.renames["INSTANCE_ID"] = "gl_InstanceIndex";
actions.renames["ALPHA_SCISSOR_THRESHOLD"] = "alpha_scissor_threshold";
actions.renames["ALPHA_HASH_SCALE"] = "alpha_hash_scale";
actions.renames["ALPHA_ANTIALIASING_EDGE"] = "alpha_antialiasing_edge";
actions.renames["ALPHA_TEXTURE_COORDINATE"] = "alpha_texture_coordinate";
//builtins
actions.renames["TIME"] = "scene_data.time";
@@ -2793,6 +2825,11 @@ RasterizerSceneHighEndRD::RasterizerSceneHighEndRD(RasterizerStorageRD *p_storag
actions.usage_defines["INSTANCE_CUSTOM"] = "#define ENABLE_INSTANCE_CUSTOM\n";
actions.usage_defines["POSITION"] = "#define OVERRIDE_POSITION\n";
actions.usage_defines["ALPHA_SCISSOR_THRESHOLD"] = "#define ALPHA_SCISSOR_USED\n";
actions.usage_defines["ALPHA_HASH_SCALE"] = "#define ALPHA_HASH_USED\n";
actions.usage_defines["ALPHA_ANTIALIASING_EDGE"] = "#define ALPHA_ANTIALIASING_EDGE_USED\n";
actions.usage_defines["ALPHA_TEXTURE_COORDINATE"] = "@ALPHA_ANTIALIASING_EDGE";
actions.usage_defines["SSS_STRENGTH"] = "#define ENABLE_SSS\n";
actions.usage_defines["SSS_TRANSMITTANCE_DEPTH"] = "#define ENABLE_TRANSMITTANCE\n";
actions.usage_defines["BACKLIGHT"] = "#define LIGHT_BACKLIGHT_USED\n";