1 files changed, 10 insertions, 5 deletions

diff --git a/servers/rendering/renderer_rd/shader_compiler_rd.cpp b/servers/rendering/renderer_rd/shader_compiler_rd.cpp
index 8aa03b6426..b95d4b642c 100644
--- a/servers/rendering/renderer_rd/shader_compiler_rd.cpp
+++ b/servers/rendering/renderer_rd/shader_compiler_rd.cpp
@@ -213,7 +213,7 @@ static String _interpstr(SL::DataInterpolation p_interp) {
 	return "";
 }
 
-static String _prestr(SL::DataPrecision p_pres) {
+static String _prestr(SL::DataPrecision p_pres, bool p_force_highp = false) {
 	switch (p_pres) {
 		case SL::PRECISION_LOWP:
 			return "lowp ";
@@ -222,7 +222,7 @@ static String _prestr(SL::DataPrecision p_pres) {
 		case SL::PRECISION_HIGHP:
 			return "highp ";
 		case SL::PRECISION_DEFAULT:
-			return "";
+			return p_force_highp ? "highp " : "";
 	}
 	return "";
 }
@@ -617,7 +617,7 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge
 					//this is an integer to index the global table
 					ucode += _typestr(ShaderLanguage::TYPE_UINT);
 				} else {
-					ucode += _prestr(uniform.precision);
+					ucode += _prestr(uniform.precision, ShaderLanguage::is_float_type(uniform.type));
 					ucode += _typestr(uniform.type);
 				}
 
@@ -742,7 +742,7 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge
 
 				String vcode;
 				String interp_mode = _interpstr(varying.interpolation);
-				vcode += _prestr(varying.precision);
+				vcode += _prestr(varying.precision, ShaderLanguage::is_float_type(varying.type));
 				vcode += _typestr(varying.type);
 				vcode += " " + _mkid(varying_name);
 				if (varying.array_size > 0) {
@@ -777,7 +777,7 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge
 				const SL::ShaderNode::Constant &cnode = pnode->vconstants[i];
 				String gcode;
 				gcode += "const ";
-				gcode += _prestr(cnode.precision);
+				gcode += _prestr(cnode.precision, ShaderLanguage::is_float_type(cnode.type));
 				if (cnode.type == SL::TYPE_STRUCT) {
 					gcode += _mkid(cnode.type_str);
 				} else {
@@ -1165,6 +1165,7 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge
 					SL::VariableNode *vnode = (SL::VariableNode *)onode->arguments[0];
 
 					bool is_texture_func = false;
+					bool is_screen_texture = false;
 					if (onode->op == SL::OP_STRUCT) {
 						code += _mkid(vnode->name);
 					} else if (onode->op == SL::OP_CONSTRUCT) {
@@ -1197,6 +1198,7 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge
 							const SL::VariableNode *varnode = static_cast<const SL::VariableNode *>(onode->arguments[i]);
 
 							StringName texture_uniform = varnode->name;
+							is_screen_texture = (texture_uniform == "SCREEN_TEXTURE");
 
 							String sampler_name;
 
@@ -1236,6 +1238,9 @@ String ShaderCompilerRD::_dump_node_code(const SL::Node *p_node, int p_level, Ge
 						}
 					}
 					code += ")";
+					if (is_screen_texture && actions.apply_luminance_multiplier) {
+						code = "(" + code + " * vec4(vec3(sc_luminance_multiplier), 1.0))";
+					}
 				} break;
 				case SL::OP_INDEX: {
 					code += _dump_node_code(onode->arguments[0], p_level, r_gen_code, p_actions, p_default_actions, p_assigning);