diff options
Diffstat (limited to 'scene/resources/particle_process_material.cpp')
| -rw-r--r-- | scene/resources/particle_process_material.cpp | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/scene/resources/particle_process_material.cpp b/scene/resources/particle_process_material.cpp index 64b4f5f66e..01d26a8bed 100644 --- a/scene/resources/particle_process_material.cpp +++ b/scene/resources/particle_process_material.cpp @@ -991,13 +991,15 @@ void ParticleProcessMaterial::_update_shader() { code += " \n"; if (collision_mode == COLLISION_RIGID) { code += " if (COLLIDED) {\n"; - code += " if (length(VELOCITY) > 3.0) {\n"; - code += " TRANSFORM[3].xyz += COLLISION_NORMAL * COLLISION_DEPTH;\n"; - code += " VELOCITY -= COLLISION_NORMAL * dot(COLLISION_NORMAL, VELOCITY) * (1.0 + collision_bounce);\n"; - code += " VELOCITY = mix(VELOCITY,vec3(0.0),clamp(collision_friction, 0.0, 1.0));\n"; - code += " } else {\n"; - code += " VELOCITY = vec3(0.0);\n"; - code += " }\n"; + code += " float collision_response = dot(COLLISION_NORMAL, VELOCITY);\n"; + code += " float slide_to_bounce_trigger = step(2.0/clamp(collision_bounce + 1.0, 1.0, 2.0), abs(collision_response));\n"; + code += " TRANSFORM[3].xyz += COLLISION_NORMAL * COLLISION_DEPTH;\n"; + code += " // Remove all components of VELOCITY that is not tangent to COLLISION_NORMAL\n"; + code += " VELOCITY -= COLLISION_NORMAL * collision_response;\n"; + code += " // Apply friction only to VELOCITY across the surface (Effectively decouples friction and bounce behavior).\n"; + code += " VELOCITY = mix(VELOCITY,vec3(0.0),clamp(collision_friction, 0.0, 1.0));\n"; + code += " // Add bounce velocity to VELOCITY\n"; + code += " VELOCITY -= COLLISION_NORMAL * collision_response * (collision_bounce * slide_to_bounce_trigger);\n"; code += " }\n"; } else if (collision_mode == COLLISION_HIDE_ON_CONTACT) { code += " if (COLLIDED) {\n"; |