Merge pull request godotengine#102143 from MathdudeMan/shader-error

Fix: Mass property particle shader bug

Author: Repiteo

drivers/gles3/shaders/particles.glsl

@@ -342,7 +342,7 @@ void main() {
 			mediump float attractor_attenuation = attractors[i].attenuation;
 			amount = pow(amount, attractor_attenuation);
 			dir = safe_normalize(mix(dir, attractors[i].transform[2].xyz, attractors[i].directionality));
-			attractor_force -= amount * dir * attractors[i].strength;
+			attractor_force -= mass * amount * dir * attractors[i].strength;
 		}
 
 		float particle_size = particle_size;

drivers/gles3/storage/material_storage.cpp

@@ -1392,7 +1392,7 @@ MaterialStorage::MaterialStorage() {
 
 		actions.renames["COLOR"] = "out_color";
 		actions.renames["VELOCITY"] = "out_velocity_flags.xyz";
-		//actions.renames["MASS"] = "mass"; ?
+		actions.renames["MASS"] = "mass";
 		actions.renames["ACTIVE"] = "particle_active";
 		actions.renames["RESTART"] = "restart";
 		actions.renames["CUSTOM"] = "out_custom";

servers/rendering/renderer_rd/shaders/particles.glsl

@@ -488,7 +488,7 @@ void main() {
 			}
 			amount = pow(amount, FRAME.attractors[i].attenuation);
 			dir = safe_normalize(mix(dir, FRAME.attractors[i].transform[2].xyz, FRAME.attractors[i].directionality));
-			attractor_force -= amount * dir * FRAME.attractors[i].strength;
+			attractor_force -= mass * amount * dir * FRAME.attractors[i].strength;
 		}
 
 		float particle_size = FRAME.particle_size;

servers/rendering/renderer_rd/storage_rd/particles_storage.cpp

@@ -68,7 +68,7 @@ ParticlesStorage::ParticlesStorage() {
 
 		actions.renames["COLOR"] = "PARTICLE.color";
 		actions.renames["VELOCITY"] = "PARTICLE.velocity";
-		//actions.renames["MASS"] = "mass"; ?
+		actions.renames["MASS"] = "mass";
 		actions.renames["ACTIVE"] = "particle_active";
 		actions.renames["RESTART"] = "restart";
 		actions.renames["CUSTOM"] = "PARTICLE.custom";