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Add LIGHT_VERTEX to fragment shader

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Adds a new variable to the fragment shader to specify
the vertex position used when calculating lighting.
This commit is contained in:
Rob Blanckaert 2024-04-24 21:41:18 -07:00
parent 780e1a5040
commit ffe0b869f5
7 changed files with 48 additions and 0 deletions
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14
drivers/gles3/shaders/scene.glsl
View file

@ -1511,10 +1511,24 @@ void main() {
float alpha_antialiasing_edge = 0.0;
vec2 alpha_texture_coordinate = vec2(0.0, 0.0);
#endif // ALPHA_ANTIALIASING_EDGE_USED
#ifdef LIGHT_VERTEX_USED
vec3 light_vertex = vertex;
#endif //LIGHT_VERTEX_USED
{
#CODE : FRAGMENT
}
#ifdef LIGHT_VERTEX_USED
vertex = light_vertex;
#ifdef USE_MULTIVIEW
view = -normalize(vertex - eye_offset);
#else
view = -normalize(vertex);
#endif //USE_MULTIVIEW
#endif //LIGHT_VERTEX_USED
#ifndef USE_SHADOW_TO_OPACITY
#if defined(ALPHA_SCISSOR_USED)

2
drivers/gles3/storage/material_storage.cpp
View file

@ -1274,6 +1274,7 @@ MaterialStorage::MaterialStorage() {
actions.renames["CUSTOM2"] = "custom2_attrib";
actions.renames["CUSTOM3"] = "custom3_attrib";
actions.renames["OUTPUT_IS_SRGB"] = "SHADER_IS_SRGB";
actions.renames["LIGHT_VERTEX"] = "light_vertex";
actions.renames["NODE_POSITION_WORLD"] = "model_matrix[3].xyz";
actions.renames["CAMERA_POSITION_WORLD"] = "scene_data.inv_view_matrix[3].xyz";
@ -1320,6 +1321,7 @@ MaterialStorage::MaterialStorage() {
actions.usage_defines["COLOR"] = "#define COLOR_USED\n";
actions.usage_defines["INSTANCE_CUSTOM"] = "#define ENABLE_INSTANCE_CUSTOM\n";
actions.usage_defines["POSITION"] = "#define OVERRIDE_POSITION\n";
actions.usage_defines["LIGHT_VERTEX"] = "#define LIGHT_VERTEX_USED\n";
actions.usage_defines["ALPHA_SCISSOR_THRESHOLD"] = "#define ALPHA_SCISSOR_USED\n";
actions.usage_defines["ALPHA_HASH_SCALE"] = "#define ALPHA_HASH_USED\n";

2
servers/rendering/renderer_rd/forward_clustered/scene_shader_forward_clustered.cpp
View file

@ -624,6 +624,7 @@ void SceneShaderForwardClustered::init(const String p_defines) {
actions.renames["CUSTOM2"] = "custom2_attrib";
actions.renames["CUSTOM3"] = "custom3_attrib";
actions.renames["OUTPUT_IS_SRGB"] = "SHADER_IS_SRGB";
actions.renames["LIGHT_VERTEX"] = "light_vertex";
actions.renames["NODE_POSITION_WORLD"] = "read_model_matrix[3].xyz";
actions.renames["CAMERA_POSITION_WORLD"] = "scene_data.inv_view_matrix[3].xyz";
@ -670,6 +671,7 @@ void SceneShaderForwardClustered::init(const String p_defines) {
actions.usage_defines["COLOR"] = "#define COLOR_USED\n";
actions.usage_defines["INSTANCE_CUSTOM"] = "#define ENABLE_INSTANCE_CUSTOM\n";
actions.usage_defines["POSITION"] = "#define OVERRIDE_POSITION\n";
actions.usage_defines["LIGHT_VERTEX"] = "#define LIGHT_VERTEX_USED\n";
actions.usage_defines["ALPHA_SCISSOR_THRESHOLD"] = "#define ALPHA_SCISSOR_USED\n";
actions.usage_defines["ALPHA_HASH_SCALE"] = "#define ALPHA_HASH_USED\n";

2
servers/rendering/renderer_rd/forward_mobile/scene_shader_forward_mobile.cpp
View file

@ -528,6 +528,7 @@ void SceneShaderForwardMobile::init(const String p_defines) {
actions.renames["CUSTOM2"] = "custom2_attrib";
actions.renames["CUSTOM3"] = "custom3_attrib";
actions.renames["OUTPUT_IS_SRGB"] = "SHADER_IS_SRGB";
actions.renames["LIGHT_VERTEX"] = "light_vertex";
actions.renames["NODE_POSITION_WORLD"] = "read_model_matrix[3].xyz";
actions.renames["CAMERA_POSITION_WORLD"] = "scene_data.inv_view_matrix[3].xyz";
@ -574,6 +575,7 @@ void SceneShaderForwardMobile::init(const String p_defines) {
actions.usage_defines["COLOR"] = "#define COLOR_USED\n";
actions.usage_defines["INSTANCE_CUSTOM"] = "#define ENABLE_INSTANCE_CUSTOM\n";
actions.usage_defines["POSITION"] = "#define OVERRIDE_POSITION\n";
actions.usage_defines["LIGHT_VERTEX"] = "#define LIGHT_VERTEX\n";
actions.usage_defines["ALPHA_SCISSOR_THRESHOLD"] = "#define ALPHA_SCISSOR_USED\n";
actions.usage_defines["ALPHA_HASH_SCALE"] = "#define ALPHA_HASH_USED\n";

14
servers/rendering/renderer_rd/shaders/forward_clustered/scene_forward_clustered.glsl
View file

@ -1022,6 +1022,11 @@ void fragment_shader(in SceneData scene_data) {
inv_view_matrix[1][3] = 0.0;
inv_view_matrix[2][3] = 0.0;
#endif
#ifdef LIGHT_VERTEX_USED
vec3 light_vertex = vertex;
#endif //LIGHT_VERTEX_USED
mat4 read_view_matrix = scene_data.view_matrix;
vec2 read_viewport_size = scene_data.viewport_size;
{
@ -1032,6 +1037,15 @@ void fragment_shader(in SceneData scene_data) {
transmittance_color.a *= sss_strength;
#endif
#ifdef LIGHT_VERTEX_USED
vertex = light_vertex;
#ifdef USE_MULTIVIEW
view = -normalize(vertex - eye_offset);
#else
view = -normalize(vertex);
#endif //USE_MULTIVIEW
#endif //LIGHT_VERTEX_USED
#ifndef USE_SHADOW_TO_OPACITY
#ifdef ALPHA_SCISSOR_USED

13
servers/rendering/renderer_rd/shaders/forward_mobile/scene_forward_mobile.glsl
View file

@ -830,6 +830,10 @@ void main() {
inv_view_matrix[2][3] = 0.0;
#endif
#ifdef LIGHT_VERTEX_USED
vec3 light_vertex = vertex;
#endif //LIGHT_VERTEX_USED
mat4 read_view_matrix = scene_data.view_matrix;
vec2 read_viewport_size = scene_data.viewport_size;
@ -837,6 +841,15 @@ void main() {
#CODE : FRAGMENT
}
#ifdef LIGHT_VERTEX_USED
vertex = light_vertex;
#ifdef USE_MULTIVIEW
view = -normalize(vertex - eye_offset);
#else
view = -normalize(vertex);
#endif //USE_MULTIVIEW
#endif //LIGHT_VERTEX_USED
#ifdef LIGHT_TRANSMITTANCE_USED
#ifdef SSS_MODE_SKIN
transmittance_color.a = sss_strength;

1
servers/rendering/shader_types.cpp
View file

@ -111,6 +111,7 @@ ShaderTypes::ShaderTypes() {
shader_modes[RS::SHADER_SPATIAL].functions["vertex"].built_ins["EYE_OFFSET"] = constt(ShaderLanguage::TYPE_VEC3);
shader_modes[RS::SHADER_SPATIAL].functions["fragment"].built_ins["VERTEX"] = constt(ShaderLanguage::TYPE_VEC3);
shader_modes[RS::SHADER_SPATIAL].functions["fragment"].built_ins["LIGHT_VERTEX"] = ShaderLanguage::TYPE_VEC3;
shader_modes[RS::SHADER_SPATIAL].functions["fragment"].built_ins["FRAGCOORD"] = constt(ShaderLanguage::TYPE_VEC4);
shader_modes[RS::SHADER_SPATIAL].functions["fragment"].built_ins["FRONT_FACING"] = constt(ShaderLanguage::TYPE_BOOL);
shader_modes[RS::SHADER_SPATIAL].functions["fragment"].built_ins["NORMAL"] = ShaderLanguage::TYPE_VEC3;